[libvirt] [RFC PATCH] maint: let MIN/MAX evaluate only once, on modern compilers
We might as well take advantage of gcc's extensions for a safer MIN()/MAX() macro. Signed-off-by: Eric Blake <eblake@redhat.com> --- RFC because we could also try to fall back to older gcc's typeof(a)_a=(a) when the newer __auto_type _a=(a) is not present, and because I don't know how to properly probe for __auto_type and/or typeof support in clang (I know that clang added __auto_type in 2015, per https://reviews.llvm.org/D12686); I also don't know if we have officially stated that we require gcc/clang (because of attribute((cleanup)), which really cannot be emulated without extensions), or if we still try to allow compilation with other compilers; if we have, I don't know if we have declared a minimum compiler version that we demand (qemu has recently demanded gcc 4.8 or clang 3.4 [branded 5.1 on Apple]). src/util/virutil.h | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/src/util/virutil.h b/src/util/virutil.h index 908d8920ec..364e354bcb 100644 --- a/src/util/virutil.h +++ b/src/util/virutil.h @@ -28,10 +28,26 @@ # include <sys/types.h> # ifndef MIN -# define MIN(a, b) ((a) < (b) ? (a) : (b)) +# if __GNUC_PREREQ(4, 9) +# define MIN(a, b) ({ \ + __auto_type _a = (a); \ + __auto_type _b = (b); \ + _a < _b ? _a : _b; \ + }) +# else +# define MIN(a, b) ((a) < (b) ? (a) : (b)) +# endif # endif # ifndef MAX -# define MAX(a, b) ((a) > (b) ? (a) : (b)) +# if __GNUC_PREREQ(4, 9) +# define MAX(a, b) ({ \ + __auto_type _a = (a); \ + __auto_type _b = (b); \ + _a > _b ? _a : _b; \ + }) +# else +# define MAX(a, b) ((a) > (b) ? (a) : (b)) +# endif # endif -- 2.20.1
On 1/4/19 10:00 AM, Eric Blake wrote:
We might as well take advantage of gcc's extensions for a safer MIN()/MAX() macro.
Signed-off-by: Eric Blake <eblake@redhat.com> ---
RFC because we could also try to fall back to older gcc's typeof(a)_a=(a) when the newer __auto_type _a=(a) is not present, and because I don't know how to properly probe for __auto_type and/or typeof support in clang (I know that clang added __auto_type in 2015, per https://reviews.llvm.org/D12686); I also don't know if we have officially stated that we require gcc/clang (because of attribute((cleanup)), which really cannot be emulated without extensions), or if we still try to allow compilation with other compilers; if we have, I don't know if we have declared a minimum compiler version that we demand (qemu has recently demanded gcc 4.8 or clang 3.4 [branded 5.1 on Apple]).
Also RFC because: In file included from util/virlog.c:46: util/virutil.h:43:22: error: braced-group within expression allowed only inside a function # define MAX(a, b) ({ \ ^ util/virlog.c:899:29: note: in expansion of macro 'MAX' # define JOURNAL_BUF_SIZE (MAX(INT_BUFSIZE_BOUND(int), sizeof(uint64_t))) ^~~ util/virlog.c:904:18: note: in expansion of macro 'JOURNAL_BUF_SIZE' char (*bufs)[JOURNAL_BUF_SIZE], (*bufs_end)[JOURNAL_BUF_SIZE]; ^~~~~~~~~~~~~~~~ util/virutil.h:43:22: error: braced-group within expression allowed only inside a function # define MAX(a, b) ({ \ ^ util/virlog.c:899:29: note: in expansion of macro 'MAX' # define JOURNAL_BUF_SIZE (MAX(INT_BUFSIZE_BOUND(int), sizeof(uint64_t))) ^~~ util/virlog.c:904:49: note: in expansion of macro 'JOURNAL_BUF_SIZE' char (*bufs)[JOURNAL_BUF_SIZE], (*bufs_end)[JOURNAL_BUF_SIZE]; ^~~~~~~~~~~~~~~~ -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3226 Virtualization: qemu.org | libvirt.org
Hi, This series was run against 'syntax-check' test by patchew.org, which failed, please find the details below: Subject: [libvirt] [RFC PATCH] maint: let MIN/MAX evaluate only once, on modern compilers Message-id: 20190104160012.23452-1-eblake@redhat.com Type: series === TEST SCRIPT BEGIN === #!/bin/bash # Testing script will be invoked under the git checkout with # HEAD pointing to a commit that has the patches applied on top of "base" # branch time bash -c './autogen.sh && make syntax-check' === TEST SCRIPT END === Updating bcb55ab053bc79561b55d0394490f4b64e0f2d01 Switched to a new branch 'test' c0c03ba maint: let MIN/MAX evaluate only once, on modern compilers === OUTPUT BEGIN === Updating submodules... Submodule 'gnulib' (https://git.savannah.gnu.org/git/gnulib.git/) registered for path '.gnulib' Submodule 'keycodemapdb' (https://gitlab.com/keycodemap/keycodemapdb.git) registered for path 'src/keycodemapdb' Cloning into '.gnulib'... Submodule path '.gnulib': checked out '4652c7bafa60332145f1e05a7de5f48e1bc56226' Cloning into 'src/keycodemapdb'... Submodule path 'src/keycodemapdb': checked out '16e5b0787687d8904dad2c026107409eb9bfcb95' Running bootstrap... ./bootstrap: Bootstrapping from checked-out libvirt sources... ./bootstrap: consider installing git-merge-changelog from gnulib ./bootstrap: getting gnulib files... running: libtoolize --install --copy libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `build-aux'. libtoolize: copying file `build-aux/config.guess' libtoolize: copying file `build-aux/config.sub' libtoolize: copying file `build-aux/install-sh' libtoolize: copying file `build-aux/ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'. libtoolize: copying file `m4/libtool.m4' libtoolize: copying file `m4/ltoptions.m4' libtoolize: copying file `m4/ltsugar.m4' libtoolize: copying file `m4/ltversion.m4' libtoolize: copying file `m4/lt~obsolete.m4' ./bootstrap: .gnulib/gnulib-tool --no-changelog --aux-dir=build-aux --doc-base=doc --lib=libgnu --m4-base=m4/ --source-base=gnulib/lib/ --tests-base=gnulib/tests --local-dir=gnulib/local --lgpl=2 --with-tests --makefile-name=gnulib.mk --avoid=pt_chown --avoid=lock-tests --libtool --import ... Module list with included dependencies (indented): absolute-header accept accept-tests alloca alloca-opt alloca-opt-tests allocator areadlink areadlink-tests arpa_inet arpa_inet-tests assure autobuild base64 base64-tests binary-io binary-io-tests bind bind-tests bitrotate bitrotate-tests btowc btowc-tests builtin-expect byteswap byteswap-tests c-ctype c-ctype-tests c-strcase c-strcase-tests c-strcasestr c-strcasestr-tests calloc-posix canonicalize-lgpl canonicalize-lgpl-tests careadlinkat chown chown-tests clock-time cloexec cloexec-tests close close-tests configmake connect connect-tests count-leading-zeros count-leading-zeros-tests count-one-bits count-one-bits-tests ctype ctype-tests dirname-lgpl dosname double-slash-root dup dup-tests dup2 dup2-tests environ environ-tests errno errno-tests error execinfo exitfail extensions extern-inline fatal-signal fclose fclose-tests fcntl fcntl-h fcntl-h-tests fcntl-tests fd-hook fdatasync fdatasync-tests fdopen fdopen-tests fflush fflush-tests ffs ffs-tests ffsl ffsl-tests fgetc-tests filename flexmember float float-tests fnmatch fnmatch-h fnmatch-h-tests fnmatch-tests fpieee fpucw fpurge fpurge-tests fputc-tests fread-tests freading freading-tests fseek fseek-tests fseeko fseeko-tests fstat fstat-tests fsync fsync-tests ftell ftell-tests ftello ftello-tests ftruncate ftruncate-tests func func-tests fwrite-tests getaddrinfo getaddrinfo-tests getcwd-lgpl getcwd-lgpl-tests getdelim getdelim-tests getdtablesize getdtablesize-tests getgroups getgroups-tests gethostname gethostname-tests getline getline-tests getopt-posix getopt-posix-tests getpagesize getpass getpeername getpeername-tests getprogname getprogname-tests getsockname getsockname-tests getsockopt getsockopt-tests gettext-h gettimeofday gettimeofday-tests getugroups gitlog-to-changelog gnumakefile grantpt grantpt-tests hard-locale havelib hostent ignore-value ignore-value-tests include_next inet_ntop inet_ntop-tests inet_pton inet_pton-tests intprops intprops-tests 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m4/inet_pton.m4 m4/intl-thread-locale.m4 m4/intlmacosx.m4 m4/intmax_t.m4 m4/inttypes-pri.m4 m4/inttypes.m4 m4/inttypes_h.m4 m4/ioctl.m4 m4/isatty.m4 m4/isblank.m4 m4/isnand.m4 m4/isnanf.m4 m4/isnanl.m4 m4/langinfo_h.m4 m4/largefile.m4 m4/lcmessage.m4 m4/ldexp.m4 m4/lib-ld.m4 m4/lib-link.m4 m4/lib-prefix.m4 m4/libunistring-base.m4 m4/limits-h.m4 m4/localcharset.m4 m4/locale-fr.m4 m4/locale-ja.m4 m4/locale-tr.m4 m4/locale-zh.m4 m4/locale_h.m4 m4/localeconv.m4 m4/localename.m4 m4/localtime-buffer.m4 m4/lock.m4 m4/longlong.m4 m4/lseek.m4 m4/lstat.m4 m4/malloc.m4 m4/malloca.m4 m4/manywarnings-c++.m4 m4/manywarnings.m4 m4/math_h.m4 m4/mbrtowc.m4 m4/mbsinit.m4 m4/mbsrtowcs.m4 m4/mbstate_t.m4 m4/mbtowc.m4 m4/memchr.m4 m4/mgetgroups.m4 m4/mkdir.m4 m4/mkdtemp.m4 m4/mkostemp.m4 m4/mkostemps.m4 m4/mktime.m4 m4/mmap-anon.m4 m4/mode_t.m4 m4/msvc-inval.m4 m4/msvc-nothrow.m4 m4/multiarch.m4 m4/nanosleep.m4 m4/net_if_h.m4 m4/netdb_h.m4 m4/netinet_in_h.m4 m4/nl_langinfo.m4 m4/nocrash.m4 m4/nonblocking.m4 m4/off_t.m4 m4/open-cloexec.m4 m4/open.m4 m4/passfd.m4 m4/pathmax.m4 m4/perror.m4 m4/physmem.m4 m4/pipe.m4 m4/pipe2.m4 m4/poll.m4 m4/poll_h.m4 m4/posix-shell.m4 m4/posix_openpt.m4 m4/posix_spawn.m4 m4/printf.m4 m4/pthread.m4 m4/pthread_rwlock_rdlock.m4 m4/pthread_sigmask.m4 m4/ptsname.m4 m4/ptsname_r.m4 m4/pty.m4 m4/pty_h.m4 m4/putenv.m4 m4/raise.m4 m4/rawmemchr.m4 m4/read.m4 m4/readlink.m4 m4/realloc.m4 m4/regex.m4 m4/sched_h.m4 m4/secure_getenv.m4 m4/select.m4 m4/servent.m4 m4/setenv.m4 m4/setlocale.m4 m4/sh-filename.m4 m4/sig_atomic_t.m4 m4/sigaction.m4 m4/signal_h.m4 m4/signalblocking.m4 m4/signbit.m4 m4/sigpipe.m4 m4/size_max.m4 m4/sleep.m4 m4/snprintf.m4 m4/socketlib.m4 m4/sockets.m4 m4/socklen.m4 m4/sockpfaf.m4 m4/spawn_h.m4 m4/ssize_t.m4 m4/stat-time.m4 m4/stat.m4 m4/stdalign.m4 m4/stdarg.m4 m4/stdbool.m4 m4/stddef_h.m4 m4/stdint.m4 m4/stdint_h.m4 m4/stdio_h.m4 m4/stdlib_h.m4 m4/stpcpy.m4 m4/strcase.m4 m4/strchrnul.m4 m4/strdup.m4 m4/strerror.m4 m4/strerror_r.m4 m4/string_h.m4 m4/strings_h.m4 m4/strndup.m4 m4/strnlen.m4 m4/strptime.m4 m4/strsep.m4 m4/strtok_r.m4 m4/symlink.m4 m4/sys_ioctl_h.m4 m4/sys_select_h.m4 m4/sys_socket_h.m4 m4/sys_stat_h.m4 m4/sys_time_h.m4 m4/sys_types_h.m4 m4/sys_uio_h.m4 m4/sys_utsname_h.m4 m4/sys_wait_h.m4 m4/tempname.m4 m4/termios_h.m4 m4/thread.m4 m4/threadlib.m4 m4/time_h.m4 m4/time_r.m4 m4/timegm.m4 m4/tm_gmtoff.m4 m4/ttyname_r.m4 m4/uname.m4 m4/ungetc.m4 m4/unistd_h.m4 m4/unlockpt.m4 m4/usleep.m4 m4/vasnprintf.m4 m4/vasprintf.m4 m4/vsnprintf.m4 m4/wait-process.m4 m4/waitpid.m4 m4/warn-on-use.m4 m4/warnings.m4 m4/wchar_h.m4 m4/wchar_t.m4 m4/wcrtomb.m4 m4/wctob.m4 m4/wctomb.m4 m4/wctype_h.m4 m4/wcwidth.m4 m4/wint_t.m4 m4/write.m4 m4/xalloc.m4 m4/xsize.m4 tests/infinity.h tests/init.sh tests/macros.h tests/minus-zero.h tests/nan.h tests/nap.h tests/null-ptr.h tests/randomd.c tests/signature.h tests/socket-client.h tests/socket-server.h tests/test-accept.c tests/test-alloca-opt.c tests/test-areadlink.c tests/test-areadlink.h tests/test-arpa_inet.c tests/test-base64.c tests/test-binary-io.c tests/test-binary-io.sh tests/test-bind.c tests/test-bitrotate.c tests/test-btowc.c tests/test-btowc1.sh tests/test-btowc2.sh tests/test-byteswap.c tests/test-c-ctype.c tests/test-c-strcase.sh tests/test-c-strcasecmp.c tests/test-c-strcasestr.c tests/test-c-strncasecmp.c tests/test-canonicalize-lgpl.c tests/test-chown.c tests/test-chown.h tests/test-cloexec.c tests/test-close.c tests/test-connect.c tests/test-count-leading-zeros.c tests/test-count-one-bits.c tests/test-ctype.c tests/test-dup.c tests/test-dup2.c tests/test-environ.c tests/test-errno.c tests/test-fclose.c tests/test-fcntl-h.c tests/test-fcntl.c tests/test-fdatasync.c tests/test-fdopen.c tests/test-fflush.c tests/test-fflush2.c tests/test-fflush2.sh tests/test-ffs.c tests/test-ffsl.c tests/test-fgetc.c tests/test-float.c tests/test-fnmatch-h.c tests/test-fnmatch.c tests/test-fpurge.c tests/test-fputc.c tests/test-fread.c tests/test-freading.c tests/test-fseek.c tests/test-fseek.sh tests/test-fseek2.sh tests/test-fseeko.c tests/test-fseeko.sh tests/test-fseeko2.sh tests/test-fseeko3.c tests/test-fseeko3.sh tests/test-fseeko4.c tests/test-fseeko4.sh tests/test-fstat.c tests/test-fsync.c tests/test-ftell.c tests/test-ftell.sh tests/test-ftell2.sh tests/test-ftell3.c tests/test-ftello.c tests/test-ftello.sh tests/test-ftello2.sh tests/test-ftello3.c tests/test-ftello4.c tests/test-ftello4.sh tests/test-ftruncate.c tests/test-ftruncate.sh tests/test-func.c tests/test-fwrite.c tests/test-getaddrinfo.c tests/test-getcwd-lgpl.c tests/test-getdelim.c tests/test-getdtablesize.c tests/test-getgroups.c tests/test-gethostname.c tests/test-getline.c tests/test-getopt-main.h tests/test-getopt-posix.c tests/test-getopt.h tests/test-getpeername.c tests/test-getprogname.c tests/test-getsockname.c tests/test-getsockopt.c tests/test-gettimeofday.c tests/test-grantpt.c tests/test-ignore-value.c tests/test-inet_ntop.c tests/test-inet_pton.c tests/test-init.sh tests/test-intprops.c tests/test-inttypes.c tests/test-ioctl.c tests/test-isatty.c tests/test-isblank.c tests/test-isnand-nolibm.c tests/test-isnand.h tests/test-isnanf-nolibm.c tests/test-isnanf.h tests/test-isnanl-nolibm.c tests/test-isnanl.h tests/test-langinfo.c tests/test-ldexp.c tests/test-ldexp.h tests/test-limits-h.c tests/test-listen.c tests/test-localcharset.c tests/test-locale.c tests/test-localeconv.c tests/test-localename.c tests/test-lseek.c tests/test-lseek.sh tests/test-lstat.c tests/test-lstat.h tests/test-malloca.c tests/test-math.c tests/test-mbrtowc-w32-1.sh tests/test-mbrtowc-w32-2.sh tests/test-mbrtowc-w32-3.sh tests/test-mbrtowc-w32-4.sh tests/test-mbrtowc-w32-5.sh tests/test-mbrtowc-w32.c tests/test-mbrtowc.c tests/test-mbrtowc1.sh tests/test-mbrtowc2.sh tests/test-mbrtowc3.sh tests/test-mbrtowc4.sh tests/test-mbrtowc5.sh tests/test-mbsinit.c tests/test-mbsinit.sh tests/test-mbsrtowcs.c tests/test-mbsrtowcs1.sh tests/test-mbsrtowcs2.sh tests/test-mbsrtowcs3.sh tests/test-mbsrtowcs4.sh tests/test-memchr.c tests/test-mkdir.c tests/test-mkdir.h tests/test-nanosleep.c tests/test-net_if.c tests/test-netdb.c tests/test-netinet_in.c tests/test-nl_langinfo.c tests/test-nl_langinfo.sh tests/test-nonblocking-misc.h tests/test-nonblocking-pipe-child.c tests/test-nonblocking-pipe-main.c tests/test-nonblocking-pipe.h tests/test-nonblocking-pipe.sh tests/test-nonblocking-reader.h tests/test-nonblocking-socket-child.c tests/test-nonblocking-socket-main.c tests/test-nonblocking-socket.h tests/test-nonblocking-socket.sh tests/test-nonblocking-writer.h tests/test-nonblocking.c tests/test-open.c tests/test-open.h tests/test-openpty.c tests/test-passfd.c tests/test-pathmax.c tests/test-perror.c tests/test-perror.sh tests/test-perror2.c tests/test-pipe.c tests/test-pipe2.c tests/test-poll-h.c tests/test-poll.c tests/test-posix_openpt.c tests/test-posix_spawn1.c tests/test-posix_spawn1.in.sh tests/test-posix_spawn2.c tests/test-posix_spawn2.in.sh tests/test-posix_spawn_file_actions_addclose.c tests/test-posix_spawn_file_actions_adddup2.c tests/test-posix_spawn_file_actions_addopen.c tests/test-pthread_sigmask1.c tests/test-pthread_sigmask2.c tests/test-ptsname.c tests/test-ptsname_r.c tests/test-raise.c tests/test-rawmemchr.c tests/test-read.c tests/test-readlink.c tests/test-readlink.h tests/test-recv.c tests/test-regex.c tests/test-sched.c tests/test-select-fd.c tests/test-select-in.sh tests/test-select-out.sh tests/test-select-stdin.c tests/test-select.c tests/test-select.h tests/test-send.c tests/test-setenv.c tests/test-setlocale1.c tests/test-setlocale1.sh tests/test-setlocale2.c tests/test-setlocale2.sh tests/test-setsockopt.c tests/test-sigaction.c tests/test-signal-h.c tests/test-signbit.c tests/test-sigpipe.c tests/test-sigpipe.sh tests/test-sigprocmask.c tests/test-sleep.c tests/test-snprintf.c tests/test-sockets.c tests/test-spawn.c tests/test-stat-time.c tests/test-stat.c tests/test-stat.h tests/test-stdalign.c tests/test-stdbool.c tests/test-stddef.c tests/test-stdint.c tests/test-stdio.c tests/test-stdlib.c tests/test-strchrnul.c tests/test-strerror.c tests/test-strerror_r.c tests/test-string.c tests/test-strings.c tests/test-strnlen.c tests/test-symlink.c tests/test-symlink.h tests/test-sys_ioctl.c tests/test-sys_select.c tests/test-sys_socket.c tests/test-sys_stat.c tests/test-sys_time.c tests/test-sys_types.c tests/test-sys_uio.c tests/test-sys_utsname.c tests/test-sys_wait.c tests/test-sys_wait.h tests/test-termios.c tests/test-thread_create.c tests/test-thread_self.c tests/test-time.c tests/test-ttyname_r.c tests/test-uname.c tests/test-unistd.c tests/test-unlockpt.c tests/test-unsetenv.c tests/test-usleep.c tests/test-vasnprintf.c tests/test-vasprintf.c tests/test-vc-list-files-cvs.sh tests/test-vc-list-files-git.sh tests/test-verify-try.c tests/test-verify.c tests/test-verify.sh tests/test-vsnprintf.c tests/test-wchar.c tests/test-wcrtomb-w32-1.sh tests/test-wcrtomb-w32-2.sh tests/test-wcrtomb-w32-3.sh tests/test-wcrtomb-w32-4.sh tests/test-wcrtomb-w32-5.sh tests/test-wcrtomb-w32.c tests/test-wcrtomb.c tests/test-wcrtomb.sh tests/test-wctype-h.c tests/test-wcwidth.c tests/test-write.c tests/test-xalloc-die.c tests/test-xalloc-die.sh tests/uniwidth/test-uc_width.c tests/uniwidth/test-uc_width2.c tests/uniwidth/test-uc_width2.sh tests/zerosize-ptr.h lib/_Noreturn.h -> tests/_Noreturn.h lib/arg-nonnull.h -> tests/arg-nonnull.h lib/c++defs.h -> tests/c++defs.h lib/ctype.in.h -> tests/ctype.in.h lib/dup.c -> tests/dup.c lib/error.c -> tests/error.c lib/error.h -> tests/error.h lib/exitfail.c -> tests/exitfail.c lib/exitfail.h -> tests/exitfail.h lib/fatal-signal.c -> tests/fatal-signal.c lib/fatal-signal.h -> tests/fatal-signal.h lib/fdopen.c -> tests/fdopen.c lib/float+.h -> tests/float+.h lib/fpucw.h -> tests/fpucw.h lib/ftruncate.c -> tests/ftruncate.c lib/getpagesize.c -> tests/getpagesize.c lib/getprogname.c -> tests/getprogname.c lib/getprogname.h -> tests/getprogname.h lib/getsockopt.c -> tests/getsockopt.c lib/glthread/thread.c -> tests/glthread/thread.c lib/glthread/thread.h -> tests/glthread/thread.h lib/grantpt.c -> tests/grantpt.c lib/inttypes.in.h -> tests/inttypes.in.h lib/isblank.c -> tests/isblank.c lib/isnan.c -> tests/isnan.c lib/isnand-nolibm.h -> tests/isnand-nolibm.h lib/isnand.c -> tests/isnand.c lib/isnanf-nolibm.h -> tests/isnanf-nolibm.h lib/isnanf.c -> tests/isnanf.c lib/isnanl-nolibm.h -> tests/isnanl-nolibm.h lib/isnanl.c -> tests/isnanl.c lib/localename-table.c -> tests/localename-table.c lib/localename-table.h -> tests/localename-table.h lib/localename.c -> tests/localename.c lib/localename.h -> tests/localename.h lib/math.c -> tests/math.c lib/math.in.h -> tests/math.in.h lib/nanosleep.c -> tests/nanosleep.c lib/ptsname.c -> tests/ptsname.c lib/ptsname_r.c -> tests/ptsname_r.c lib/pty-private.h -> tests/pty-private.h lib/putenv.c -> tests/putenv.c lib/read.c -> tests/read.c lib/same-inode.h -> tests/same-inode.h lib/setlocale.c -> tests/setlocale.c lib/signbitd.c -> tests/signbitd.c lib/signbitf.c -> tests/signbitf.c lib/signbitl.c -> tests/signbitl.c lib/spawn.in.h -> tests/spawn.in.h lib/spawn_faction_addclose.c -> tests/spawn_faction_addclose.c lib/spawn_faction_adddup2.c -> tests/spawn_faction_adddup2.c lib/spawn_faction_addopen.c -> tests/spawn_faction_addopen.c lib/spawn_faction_destroy.c -> tests/spawn_faction_destroy.c lib/spawn_faction_init.c -> tests/spawn_faction_init.c lib/spawn_int.h -> tests/spawn_int.h lib/spawnattr_destroy.c -> tests/spawnattr_destroy.c lib/spawnattr_init.c -> tests/spawnattr_init.c lib/spawnattr_setflags.c -> tests/spawnattr_setflags.c lib/spawnattr_setsigmask.c -> tests/spawnattr_setsigmask.c lib/spawni.c -> tests/spawni.c lib/spawnp.c -> tests/spawnp.c lib/symlink.c -> tests/symlink.c lib/unlockpt.c -> tests/unlockpt.c lib/unused-parameter.h -> tests/unused-parameter.h lib/w32sock.h -> tests/w32sock.h lib/wait-process.c -> tests/wait-process.c lib/wait-process.h -> tests/wait-process.h lib/warn-on-use.h -> tests/warn-on-use.h lib/wctob.c -> tests/wctob.c lib/wctomb-impl.h -> tests/wctomb-impl.h lib/wctomb.c -> tests/wctomb.c lib/write.c -> tests/write.c lib/xalloc-die.c -> tests/xalloc-die.c lib/xalloc.h -> tests/xalloc.h lib/xmalloc.c -> tests/xmalloc.c top/GNUmakefile top/maint.mk Creating directory ./gnulib/lib/glthread Creating directory ./gnulib/lib/uniwidth Creating directory ./gnulib/tests/glthread Creating directory ./gnulib/tests/uniwidth Copying file GNUmakefile Copying file build-aux/config.rpath Copying file build-aux/gitlog-to-changelog Copying file build-aux/mktempd Copying file build-aux/useless-if-before-free Copying file build-aux/vc-list-files Copying file gnulib/lib/_Noreturn.h Copying file gnulib/lib/accept.c Copying file gnulib/lib/alloca.c Copying file gnulib/lib/alloca.in.h Copying file 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m4/strsep.m4 Copying file m4/strtok_r.m4 Copying file m4/symlink.m4 Copying file m4/sys_ioctl_h.m4 Copying file m4/sys_select_h.m4 Copying file m4/sys_socket_h.m4 Copying file m4/sys_stat_h.m4 Copying file m4/sys_time_h.m4 Copying file m4/sys_types_h.m4 Copying file m4/sys_uio_h.m4 Copying file m4/sys_utsname_h.m4 Copying file m4/sys_wait_h.m4 Copying file m4/tempname.m4 Copying file m4/termios_h.m4 Copying file m4/thread.m4 Copying file m4/threadlib.m4 Copying file m4/time_h.m4 Copying file m4/time_r.m4 Copying file m4/timegm.m4 Copying file m4/tm_gmtoff.m4 Copying file m4/ttyname_r.m4 Copying file m4/uname.m4 Copying file m4/ungetc.m4 Copying file m4/unistd_h.m4 Copying file m4/unlockpt.m4 Copying file m4/usleep.m4 Copying file m4/vasnprintf.m4 Copying file m4/vasprintf.m4 Copying file m4/vsnprintf.m4 Copying file m4/wait-process.m4 Copying file m4/waitpid.m4 Copying file m4/warn-on-use.m4 Copying file m4/warnings.m4 Copying file m4/wchar_h.m4 Copying file m4/wchar_t.m4 Copying file m4/wcrtomb.m4 Copying file m4/wctob.m4 Copying file m4/wctomb.m4 Copying file m4/wctype_h.m4 Copying file m4/wcwidth.m4 Copying file m4/wint_t.m4 Copying file m4/write.m4 Copying file m4/xalloc.m4 Copying file m4/xsize.m4 Copying file maint.mk Creating gnulib/lib/gnulib.mk Creating m4/gnulib-cache.m4 Creating m4/gnulib-comp.m4 Creating gnulib/tests/gnulib.mk Updating ./build-aux/.gitignore (backup in ./build-aux/.gitignore~) Creating ./gnulib/lib/.gitignore Creating ./gnulib/lib/glthread/.gitignore Creating ./gnulib/lib/uniwidth/.gitignore Creating ./gnulib/tests/.gitignore Creating ./gnulib/tests/glthread/.gitignore Creating ./gnulib/tests/uniwidth/.gitignore Updating ./m4/.gitignore (backup in ./m4/.gitignore~) Finished. You may need to add #include directives for the following .h files. #include <arpa/inet.h> #include <byteswap.h> #include <execinfo.h> #include <fcntl.h> #include <fnmatch.h> #include <locale.h> #include <math.h> #include <net/if.h> #include <netdb.h> #include <poll.h> #include <pthread.h> #include <pty.h> #include <regex.h> #include <sched.h> #include <signal.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <sys/ioctl.h> #include <sys/socket.h> #include <sys/stat.h> #include <sys/time.h> #include <sys/utsname.h> #include <sys/wait.h> #include <termios.h> #include <time.h> #include <unistd,h> #include <unistd.h> #include <wchar.h> /* Include only after all system include files. */ #include "areadlink.h" #include "base64.h" #include "bitrotate.h" #include "c-ctype.h" #include "c-strcase.h" #include "c-strcasestr.h" #include "configmake.h" #include "count-leading-zeros.h" #include "count-one-bits.h" #include "dirname.h" #include "ignore-value.h" #include "intprops.h" #include "mgetgroups.h" #include "nonblocking.h" #include "passfd.h" #include "physmem.h" #include "stat-time.h" #include "verify.h" You may need to use the following Makefile variables when linking. Use them in <program>_LDADD when linking a program, or in <library>_a_LDFLAGS or <library>_la_LDFLAGS when linking a library. $(GETADDRINFO_LIB) $(GETHOSTNAME_LIB) $(HOSTENT_LIB) $(INET_NTOP_LIB) $(INET_PTON_LIB) $(LDEXP_LIBM) $(LIBSOCKET) $(LIB_CLOCK_GETTIME) $(LIB_EXECINFO) $(LIB_FDATASYNC) $(LIB_POLL) $(LIB_PTHREAD) $(LIB_PTHREAD_SIGMASK) $(LIB_SELECT) $(LTLIBINTL) when linking with libtool, $(LIBINTL) otherwise $(LTLIBTHREAD) when linking with libtool, $(LIBTHREAD) otherwise $(PTY_LIB) $(SERVENT_LIB) Don't forget to - "include gnulib.mk" from within "gnulib/lib/Makefile.am", - "include gnulib.mk" from within "gnulib/tests/Makefile.am", - mention "-I m4" in ACLOCAL_AMFLAGS in Makefile.am, - mention "m4/gnulib-cache.m4" in EXTRA_DIST in Makefile.am, - invoke gl_EARLY in ./configure.ac, right after AC_PROG_CC, - invoke gl_INIT in ./configure.ac. running: AUTOPOINT=true LIBTOOLIZE=true autoreconf --verbose --install --force -I m4 --no-recursive autoreconf: Entering directory `.' autoreconf: configure.ac: not using Gettext autoreconf: running: aclocal -I m4 --force -I m4 autoreconf: configure.ac: tracing autoreconf: running: true --copy --force autoreconf: running: /usr/bin/autoconf --include=m4 --force autoreconf: running: /usr/bin/autoheader --include=m4 --force autoreconf: running: automake --add-missing --copy --force-missing configure.ac:126: installing 'build-aux/compile' configure.ac:27: installing 'build-aux/missing' Makefile.am: installing './INSTALL' examples/Makefile.am: installing 'build-aux/depcomp' parallel-tests: installing 'build-aux/test-driver' autoreconf: Leaving directory `.' ./bootstrap: ln -fs ../.gnulib/build-aux/install-sh build-aux/install-sh ./bootstrap: ln -fs ../.gnulib/build-aux/depcomp build-aux/depcomp ./bootstrap: ln -fs ../.gnulib/build-aux/config.guess build-aux/config.guess ./bootstrap: ln -fs ../.gnulib/build-aux/config.sub build-aux/config.sub ./bootstrap: ln -fs .gnulib/doc/INSTALL INSTALL ./bootstrap: done. Now you can run './configure'. I am going to run configure with no arguments - if you wish to pass any to it, please specify them on the ./autogen.sh command line. checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /usr/bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking whether make supports nested variables... yes checking how to create a pax tar archive... gnutar checking whether make supports nested variables... 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GNU checking dependency style of gcc... gcc3 checking how to run the C preprocessor... gcc -E checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking minix/config.h usability... no checking minix/config.h presence... no checking for minix/config.h... no checking whether it is safe to define __EXTENSIONS__... yes checking whether _XOPEN_SOURCE should be defined... no checking for Minix Amsterdam compiler... no checking for ar... ar checking for ranlib... ranlib checking whether gcc and cc understand -c and -o together... yes checking for _LARGEFILE_SOURCE value needed for large files... no checking for special C compiler options needed for large files... no checking for _FILE_OFFSET_BITS value needed for large files... no checking for gcc option to accept ISO C99... -std=gnu99 checking for gcc -std=gnu99 option to accept ISO Standard C... (cached) -std=gnu99 configure: autobuild project... libvirt configure: autobuild revision... v2.1.0-rc1-7914-gc0c03ba configure: autobuild hostname... virtlab205.virt.lab.eng.bos.redhat.com configure: autobuild timestamp... 20190104T163654Z checking for sys/socket.h... yes checking for arpa/inet.h... yes checking for features.h... yes checking for sys/param.h... yes checking for unistd.h... (cached) yes checking for execinfo.h... yes checking for fnmatch.h... yes checking for wctype.h... yes checking for sys/stat.h... (cached) yes checking for netdb.h... yes checking for netinet/in.h... yes checking for getopt.h... yes checking for sys/cdefs.h... yes checking for stdio_ext.h... yes checking for termios.h... yes checking for sys/time.h... yes checking for grp.h... yes checking for langinfo.h... yes checking for limits.h... yes checking for xlocale.h... yes checking for sys/mman.h... yes checking for pty.h... yes checking for poll.h... yes checking for sys/ioctl.h... yes checking for sys/filio.h... no checking for pthread.h... yes checking for malloc.h... yes checking for sys/select.h... yes checking for wchar.h... yes checking for stdint.h... (cached) yes checking for strings.h... (cached) yes checking for sys/uio.h... yes checking for sys/utsname.h... yes checking for sys/wait.h... yes checking for crtdefs.h... no checking for inttypes.h... (cached) yes checking for math.h... yes checking for sys/types.h... 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(cached) yes checking for wctob... yes checking for cfmakeraw... yes checking for fallocate... yes checking for getifaddrs... yes checking for getmntent_r... yes checking for getpwuid_r... yes checking for getrlimit... yes checking for if_indextoname... yes checking for mmap... yes checking for posix_fallocate... yes checking for posix_memalign... yes checking for prlimit... yes checking for sched_getaffinity... yes checking for sched_setscheduler... yes checking for setgroups... yes checking for setns... yes checking for setrlimit... yes checking for sysctlbyname... no checking for unshare... yes checking for nl_langinfo and CODESET... yes checking for a traditional french locale... fr_FR checking whether malloc, realloc, calloc are POSIX compliant... yes checking whether // is distinct from /... no checking whether realpath works... yes checking for uid_t in sys/types.h... yes checking for unistd.h... (cached) yes checking for working chown... yes checking whether chown dereferences symlinks... yes checking whether chown honors trailing slash... yes checking whether chown always updates ctime... yes checking for unsigned long long int... yes checking if environ is properly declared... yes checking for complete errno.h... yes checking for working fcntl.h... yes checking for pid_t... yes checking for mode_t... yes checking whether fdatasync is declared... yes checking for mbstate_t... yes checking whether stdin defaults to large file offsets... yes checking whether fseeko is declared... yes checking for fseeko... yes checking whether fflush works on input streams... no checking whether stat file-mode macros are broken... no checking for nlink_t... yes checking whether ftello is declared... yes checking for ftello... yes checking whether ftello works... yes checking for library containing gethostbyname... none required checking for gethostbyname... yes checking for library containing getservbyname... none required checking for getservbyname... yes checking for library containing inet_ntop... none required checking whether inet_ntop is declared... yes checking for IPv4 sockets... yes checking for IPv6 sockets... yes checking whether getcwd (NULL, 0) allocates memory for result... yes checking for getcwd with POSIX signature... yes checking whether getdelim is declared... yes checking whether getdtablesize is declared... yes checking type of array argument to getgroups... gid_t checking whether getline is declared... yes checking whether getopt is POSIX compatible... yes checking whether fflush_unlocked is declared... yes checking whether flockfile is declared... yes checking whether fputs_unlocked is declared... yes checking whether funlockfile is declared... yes checking whether putc_unlocked is declared... yes checking for struct timeval... yes checking for wide-enough struct timeval.tv_sec member... yes checking whether ldexp() can be used without linking with libm... yes checking whether limits.h has LLONG_MAX, WORD_BIT, ULLONG_WIDTH etc.... no checking for wchar_t... yes checking for good max_align_t... no checking whether NULL can be used in arbitrary expressions... yes checking for ld used by gcc -std=gnu99... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for shared library run path origin... done checking 32-bit host C ABI... no checking for the common suffixes of directories in the library search path... lib64,lib64 checking whether imported symbols can be declared weak... yes checking whether the linker supports --as-needed... yes checking whether the linker supports --push-state... yes checking for pthread.h... (cached) yes checking for multithread API to use... posix checking whether lstat correctly handles trailing slash... yes checking for a sed that does not truncate output... /usr/bin/sed checking for stdlib.h... (cached) yes checking for GNU libc compatible malloc... yes checking for long long int... yes checking for a traditional japanese locale... ja_JP checking for a transitional chinese locale... zh_CN.GB18030 checking for a french Unicode locale... fr_FR.UTF-8 checking for inline... inline checking for mmap... (cached) yes checking for MAP_ANONYMOUS... yes checking whether memchr works... yes checking whether time_t is signed... yes checking whether alarm is declared... yes checking for working mktime... yes checking whether C symbols are prefixed with underscore at the linker level... no checking for O_CLOEXEC... yes checking for promoted mode_t type... mode_t checking for library containing forkpty... -lutil checking whether strerror(0) succeeds... yes checking for strerror_r with POSIX signature... no checking whether __xpg_strerror_r works... yes checking whether strerror_r is declared... yes checking for external symbol _system_configuration... no checking for library containing setsockopt... none needed checking for sigset_t... yes checking for SIGPIPE... yes checking whether we are using the GNU C Library >= 2.1 or uClibc... yes checking whether <sys/select.h> is self-contained... yes checking whether setenv is declared... yes checking search.h usability... yes checking search.h presence... yes checking for search.h... yes checking for tsearch... yes checking whether snprintf returns a byte count as in C99... yes checking whether snprintf is declared... yes checking for stdbool.h that conforms to C99... yes checking for _Bool... yes checking for wint_t... yes checking whether wint_t is too small... no checking whether stdint.h conforms to C99... yes checking whether stdint.h predates C++11... no checking whether stdint.h has UINTMAX_WIDTH etc.... no checking whether strdup is declared... yes checking whether strndup is declared... yes checking whether strnlen is declared... yes checking for struct tm.tm_gmtoff... yes checking whether strtok_r is declared... yes checking for struct timespec in <time.h>... yes checking whether ttyname_r is declared... yes checking whether unsetenv is declared... yes checking for inttypes.h... yes checking for stdint.h... yes checking for intmax_t... yes checking where to find the exponent in a 'double'... word 1 bit 20 checking for snprintf... (cached) yes checking for strnlen... yes checking for wcslen... yes checking for wcsnlen... yes checking for mbrtowc... (cached) yes checking for wcrtomb... (cached) yes checking whether _snprintf is declared... no checking whether vsnprintf is declared... yes checking whether strerror_r is declared... (cached) yes checking for strerror_r... (cached) yes checking whether strerror_r returns char *... yes checking for sig_atomic_t... yes checking whether ungetc works on arbitrary bytes... yes checking for inttypes.h... (cached) yes checking whether the inttypes.h PRIxNN macros are broken... no checking where to find the exponent in a 'float'... word 0 bit 23 checking whether byte ordering is bigendian... no checking whether long double and double are the same... no checking for LC_MESSAGES... yes checking whether uselocale works... yes checking for fake locale system (OpenBSD)... no checking for Solaris 11.4 locale system... no checking for getlocalename_l... no checking for CFPreferencesCopyAppValue... no checking for CFLocaleCopyCurrent... no checking for CFLocaleCopyPreferredLanguages... no checking for library containing posix_spawn... none required checking for posix_spawn... yes checking whether posix_spawn works... yes checking whether posix_spawnattr_setschedpolicy is supported... yes checking whether posix_spawnattr_setschedparam is supported... yes checking sys/mkdev.h usability... no checking sys/mkdev.h presence... no checking for sys/mkdev.h... no checking sys/sysmacros.h usability... yes checking sys/sysmacros.h presence... yes checking for sys/sysmacros.h... yes checking for alloca as a compiler built-in... yes checking whether btowc(0) is correct... yes checking whether btowc(EOF) is correct... yes checking for __builtin_expect... yes checking byteswap.h usability... yes checking byteswap.h presence... yes checking for byteswap.h... yes checking for library containing clock_gettime... none required checking for clock_gettime... yes checking for clock_settime... yes checking whether // is distinct from /... (cached) no checking whether dup2 works... yes checking for library containing backtrace_symbols_fd... none required checking whether fflush works on input streams... (cached) no checking whether fcntl handles F_DUPFD correctly... yes checking whether fcntl understands F_DUPFD_CLOEXEC... needs runtime check checking for library containing fdatasync... none required checking whether fflush works on input streams... (cached) no checking for ffs... yes checking for flexible array member... yes checking whether conversion from 'int' to 'long double' works... yes checking for working POSIX fnmatch... yes checking whether fpurge is declared... no checking for fseeko... (cached) yes checking whether fflush works on input streams... (cached) no checking for _fseeki64... no checking for ftello... (cached) yes checking whether ftello works... (cached) yes checking whether __func__ is available... yes checking how to do getaddrinfo, freeaddrinfo and getnameinfo... checking for library containing getaddrinfo... none required checking for getaddrinfo... yes checking whether gai_strerror is declared... yes checking whether gai_strerrorA is declared... no checking for gai_strerror with POSIX signature... yes checking for struct sockaddr.sa_len... no checking whether getaddrinfo is declared... yes checking whether freeaddrinfo is declared... yes checking whether getnameinfo is declared... yes checking for struct addrinfo... yes checking for working getdelim function... yes checking whether getdtablesize works... yes checking for getgroups... yes checking for working getgroups... yes checking whether getgroups handles negative values... yes checking for gethostname... yes checking for HOST_NAME_MAX... yes checking for getline... yes checking for working getline function... yes checking whether gettimeofday clobbers localtime buffer... no checking for gettimeofday with POSIX signature... almost checking for library containing gethostbyname... (cached) none required checking for gethostbyname... (cached) yes checking for library containing inet_ntop... (cached) none required checking whether inet_ntop is declared... (cached) yes checking for library containing inet_pton... none required checking whether inet_pton is declared... yes checking for ioctl... yes checking for ioctl with POSIX signature... no checking whether langinfo.h defines CODESET... yes checking whether langinfo.h defines T_FMT_AMPM... yes checking whether langinfo.h defines ALTMON_1... no checking whether langinfo.h defines ERA... yes checking whether langinfo.h defines YESEXPR... yes checking whether the compiler supports the __inline keyword... yes checking whether locale.h conforms to POSIX:2001... yes checking whether locale.h defines locale_t... yes checking whether struct lconv is properly defined... yes checking for pthread_rwlock_t... yes checking whether pthread_rwlock_rdlock prefers a writer to a reader... no checking whether lseek detects pipes... yes checking whether mbrtowc handles incomplete characters... yes checking whether mbrtowc works as well as mbtowc... yes checking whether mbrtowc handles a NULL pwc argument... yes checking whether mbrtowc handles a NULL string argument... yes checking whether mbrtowc has a correct return value... yes checking whether mbrtowc returns 0 when parsing a NUL character... yes checking whether mbrtowc works on empty input... no checking whether the C locale is free of encoding errors... no checking whether mbrtowc handles incomplete characters... (cached) yes checking whether mbrtowc works as well as mbtowc... (cached) yes checking whether mbrtowc handles incomplete characters... (cached) yes checking whether mbrtowc works as well as mbtowc... (cached) yes checking whether mbsrtowcs works... yes checking whether mkdir handles trailing slash... yes checking whether mkdir handles trailing dot... yes checking for mkdtemp... yes checking for __mktime_internal... no checking whether <net/if.h> is self-contained... yes checking whether <netinet/in.h> is self-contained... yes checking whether YESEXPR works... yes checking whether open recognizes a trailing slash... yes checking whether openpty is declared... yes checking for const-safe openpty signature... yes checking for struct msghdr.msg_accrights... no checking whether perror matches strerror... yes checking for sys/pstat.h... no checking for sys/sysmp.h... no checking for sys/sysinfo.h... yes checking for machine/hal_sysinfo.h... no checking for sys/table.h... no checking for sys/param.h... (cached) yes checking for sys/systemcfg.h... no checking for sys/sysctl.h... yes checking for pstat_getstatic... no checking for pstat_getdynamic... no checking for sysmp... no checking for getsysinfo... no checking for sysctl... yes checking for table... no checking for sysinfo... yes checking for struct sysinfo.mem_unit... yes checking for poll... yes checking for a shell that conforms to POSIX... /bin/sh checking whether <pthread.h> pollutes the namespace... no checking for pthread_t... yes checking for pthread_spinlock_t... yes checking for library containing pthread_create and pthread_join... -pthread checking for pthread_sigmask in -pthread -Wl,--push-state -Wl,--no-as-needed -lpthread -Wl,--pop-state... yes checking whether pthread_sigmask is only a macro... no checking whether pthread_sigmask returns error numbers... yes checking whether pthread_sigmask unblocks signals correctly... guessing yes checking for raise... yes checking for sigprocmask... yes checking for rawmemchr... yes checking whether readlink signature is correct... yes checking whether readlink handles trailing slash correctly... yes checking for working re_compile_pattern... no checking libintl.h usability... yes checking libintl.h presence... yes checking for libintl.h... yes checking whether isblank is declared... yes checking whether select supports a 0 argument... yes checking whether select detects invalid fds... yes checking for library containing getservbyname... (cached) none required checking for getservbyname... (cached) yes checking whether setenv validates arguments... yes checking for struct sigaction.sa_sigaction... yes checking for volatile sig_atomic_t... yes checking for sighandler_t... yes checking for sigprocmask... (cached) yes checking for stdint.h... (cached) yes checking for SIZE_MAX... yes checking whether sleep is declared... yes checking for working sleep... yes checking for snprintf... (cached) yes checking whether snprintf respects a size of 1... yes checking whether printf supports POSIX/XSI format strings with positions... yes checking for socklen_t... yes checking for ssize_t... yes checking whether stat handles trailing slashes on files... yes checking for struct stat.st_atim.tv_nsec... yes checking whether struct stat.st_atim is of type struct timespec... yes checking for struct stat.st_birthtimespec.tv_nsec... no checking for struct stat.st_birthtimensec... no checking for struct stat.st_birthtim.tv_nsec... no checking for working stdalign.h... yes checking for va_copy... yes checking for good max_align_t... (cached) no checking whether NULL can be used in arbitrary expressions... (cached) yes checking which flavor of printf attribute matches inttypes macros... system checking for stpcpy... yes checking for strcasecmp... yes checking for strncasecmp... yes checking whether strncasecmp is declared... yes checking for strchrnul... yes checking whether strchrnul works... yes checking for working strerror function... yes checking for working strndup... yes checking for working strnlen... yes checking for strsep... yes checking for strtok_r... yes checking whether strtok_r works... yes checking whether <sys/ioctl.h> declares ioctl... yes checking for nlink_t... (cached) yes checking for struct utsname... yes checking whether localtime_r is declared... yes checking whether localtime_r is compatible with its POSIX signature... yes checking for ttyname_r... yes checking whether ttyname_r is compatible with its POSIX signature... yes checking whether ttyname_r works with small buffers... guessing yes checking for uname... yes checking for unsetenv... yes checking for unsetenv() return type... int checking whether unsetenv obeys POSIX... yes checking for useconds_t... yes checking whether usleep allows large arguments... yes checking for ptrdiff_t... yes checking for vasprintf... yes checking for vsnprintf... yes checking whether snprintf respects a size of 1... (cached) yes checking whether printf supports POSIX/XSI format strings with positions... (cached) yes checking whether mbrtowc handles incomplete characters... (cached) yes checking whether mbrtowc works as well as mbtowc... (cached) yes checking whether wcrtomb return value is correct... yes checking whether iswcntrl works... yes checking for towlower... yes checking for wctype_t... yes checking for wctrans_t... yes checking whether wcwidth is declared... yes checking whether wcwidth works reasonably in UTF-8 locales... yes checking for stdint.h... (cached) yes checking for a traditional french locale... (cached) fr_FR checking for a french Unicode locale... (cached) fr_FR.UTF-8 checking for a traditional french locale... (cached) fr_FR checking for a turkish Unicode locale... tr_TR.UTF-8 checking whether dup works... yes checking for error_at_line... yes checking whether fdopen sets errno... yes checking for getpagesize... yes checking whether getpagesize is declared... yes checking whether program_invocation_name is declared... yes checking whether program_invocation_short_name is declared... yes checking whether __argv is declared... no checking for grantpt... yes checking whether byte ordering is bigendian... (cached) no checking whether byte ordering is bigendian... (cached) no checking whether INT32_MAX < INTMAX_MAX... yes checking whether INT64_MAX == LONG_MAX... yes checking whether UINT32_MAX < UINTMAX_MAX... yes checking whether UINT64_MAX == ULONG_MAX... yes checking whether isnan(double) can be used without linking with libm... yes checking where to find the exponent in a 'double'... (cached) word 1 bit 20 checking whether isnan(float) can be used without linking with libm... yes checking whether isnan(float) works... yes checking where to find the exponent in a 'float'... (cached) word 0 bit 23 checking whether isnan(long double) can be used without linking with libm... yes checking whether isnanl works... yes checking where to find the exponent in a 'long double'... word 2 bit 0 checking for setlocale... yes checking whether NAN macro works... yes checking whether HUGE_VAL works... yes checking for a traditional french locale... (cached) fr_FR checking for a french Unicode locale... (cached) fr_FR.UTF-8 checking for a traditional japanese locale... (cached) ja_JP checking for a transitional chinese locale... (cached) zh_CN.GB18030 checking for a french Unicode locale... (cached) fr_FR.UTF-8 checking for a traditional french locale... (cached) fr_FR checking for a french Unicode locale... (cached) fr_FR.UTF-8 checking for a traditional japanese locale... (cached) ja_JP checking for a transitional chinese locale... (cached) zh_CN.GB18030 checking for mmap... (cached) yes checking for MAP_ANONYMOUS... yes checking for library containing nanosleep... none required checking for working nanosleep... no (mishandles large arguments) checking for library containing if_nameindex... none required checking for a traditional french locale... (cached) fr_FR checking for a french Unicode locale... (cached) fr_FR.UTF-8 checking whether posix_spawn_file_actions_addclose works... yes checking whether posix_spawn_file_actions_adddup2 works... yes checking whether posix_spawn_file_actions_addopen works... yes checking for ptsname... yes checking whether ptsname sets errno on failure... yes checking whether ptsname_r has the same signature as in glibc... yes checking for putenv compatible with GNU and SVID... yes checking for mmap... (cached) yes checking for MAP_ANONYMOUS... yes checking for a traditional french locale... (cached) fr_FR checking for a french Unicode locale... (cached) fr_FR.UTF-8 checking for a traditional japanese locale... (cached) ja_JP checking for a transitional chinese locale... (cached) zh_CN.GB18030 checking for signbit macro... yes checking for signbit compiler built-ins... yes checking for posix_spawnattr_t... yes checking for posix_spawn_file_actions_t... yes checking for mmap... (cached) yes checking for MAP_ANONYMOUS... yes checking whether symlink handles trailing slash correctly... yes checking for pthread_atfork... yes checking for unlockpt... yes checking for waitid... yes checking for a traditional french locale... (cached) fr_FR checking for a french Unicode locale... (cached) fr_FR.UTF-8 checking for a traditional japanese locale... (cached) ja_JP checking for a transitional chinese locale... (cached) zh_CN.GB18030 checking whether wctob works... yes checking whether wctob is declared... yes checking for uid_t in sys/types.h... (cached) yes checking for sys/mkdev.h... (cached) no checking for sys/sysmacros.h... (cached) yes checking how to print strings... printf checking for a sed that does not truncate output... (cached) /usr/bin/sed checking for fgrep... /usr/bin/grep -F checking for ld used by gcc -std=gnu99... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B checking the name lister (/usr/bin/nm -B) interface... BSD nm checking whether ln -s works... yes checking the maximum length of command line arguments... 1572864 checking whether the shell understands some XSI constructs... yes checking whether the shell understands "+="... yes checking how to convert x86_64-pc-linux-gnu file names to x86_64-pc-linux-gnu format... func_convert_file_noop checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop checking for /usr/bin/ld option to reload object files... -r checking for objdump... objdump checking how to recognize dependent libraries... pass_all checking for dlltool... dlltool checking how to associate runtime and link libraries... printf %s\n checking for archiver @FILE support... @ checking for strip... strip checking for ranlib... (cached) ranlib checking command to parse /usr/bin/nm -B output from gcc -std=gnu99 object... ok checking for sysroot... no checking for mt... no checking if : is a manifest tool... no checking for dlfcn.h... yes checking for objdir... .libs checking if gcc -std=gnu99 supports -fno-rtti -fno-exceptions... no checking for gcc -std=gnu99 option to produce PIC... -fPIC -DPIC checking if gcc -std=gnu99 PIC flag -fPIC -DPIC works... yes checking if gcc -std=gnu99 static flag -static works... no checking if gcc -std=gnu99 supports -c -o file.o... yes checking if gcc -std=gnu99 supports -c -o file.o... (cached) yes checking whether the gcc -std=gnu99 linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes checking whether -lc should be explicitly linked in... no checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... no checking for ld used by gcc -std=gnu99... (cached) /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... (cached) yes checking for how to mark DSO non-deletable at runtime... -Wl,-z -Wl,nodelete checking for how to set DSO symbol versions... -Wl,--version-script= checking whether C compiler handles -Werror -Wunknown-warning-option... no checking whether the C compiler's -Wformat allows NULL strings... yes checking whether pragma GCC diagnostic push works... yes checking whether the C compiler's -Wlogical-op gives bogus warnings... no checking whether gcc gives bogus warnings for -Wlogical-op... no checking whether clang gives bogus warnings for -Wdouble-promotion... no checking whether -Wno-missing-field-initializers is supported... yes checking whether -Wno-missing-field-initializers is needed... no checking whether -Wuninitialized is supported... yes checking max safe object size... 9223372036854775807 checking whether C compiler handles -Wframe-larger-than=4096... yes checking whether C compiler handles -Wframe-larger-than=32768... yes checking whether C compiler handles -fno-common... yes checking whether C compiler handles -W... yes checking whether C compiler handles -Waddress... yes checking whether C compiler handles -Waggressive-loop-optimizations... yes checking whether C compiler handles -Wall... yes checking whether C compiler handles -Wattribute-alias... no checking whether C compiler handles -Wattributes... yes checking whether C compiler handles -Wbad-function-cast... yes checking whether C compiler handles -Wbool-compare... no checking whether C compiler handles -Wbool-operation... no checking whether C compiler handles -Wbuiltin-declaration-mismatch... no checking whether C compiler handles -Wbuiltin-macro-redefined... yes checking whether C compiler handles -Wcast-align... yes checking whether C compiler handles -Wcast-align=strict... no checking whether C compiler handles -Wcast-function-type... no checking whether C compiler handles -Wchar-subscripts... yes checking whether C compiler handles -Wclobbered... yes checking whether C compiler handles -Wcomment... yes checking whether C compiler handles -Wcomments... yes checking whether C compiler handles -Wcoverage-mismatch... yes checking whether C compiler handles -Wcpp... yes checking whether C compiler handles -Wdangling-else... no checking whether C compiler handles -Wdate-time... no checking whether C compiler handles -Wdeprecated-declarations... yes checking whether C compiler handles -Wdesignated-init... no checking whether C compiler handles -Wdiscarded-array-qualifiers... no checking whether C compiler handles -Wdiscarded-qualifiers... no checking whether C compiler handles -Wdiv-by-zero... yes checking whether C compiler handles -Wdouble-promotion... yes checking whether C compiler handles -Wduplicated-cond... no checking whether C compiler handles -Wduplicate-decl-specifier... no checking whether C compiler handles -Wempty-body... yes checking whether C compiler handles -Wendif-labels... yes checking whether C compiler handles -Wexpansion-to-defined... no checking whether C compiler handles -Wextra... yes checking whether C compiler handles -Wformat-contains-nul... yes checking whether C compiler handles -Wformat-extra-args... yes checking whether C compiler handles -Wformat-security... yes checking whether C compiler handles -Wformat-y2k... yes checking whether C compiler handles -Wformat-zero-length... yes checking whether C compiler handles -Wframe-address... no checking whether C compiler handles -Wfree-nonheap-object... yes checking whether C compiler handles -Whsa... no checking whether C compiler handles -Wif-not-aligned... no checking whether C compiler handles -Wignored-attributes... no checking whether C compiler handles -Wignored-qualifiers... yes checking whether C compiler handles -Wimplicit... yes checking whether C compiler handles -Wimplicit-function-declaration... yes checking whether C compiler handles -Wimplicit-int... yes checking whether C compiler handles -Wincompatible-pointer-types... no checking whether C compiler handles -Winit-self... yes checking whether C compiler handles -Winline... yes checking whether C compiler handles -Wint-conversion... no checking whether C compiler handles -Wint-in-bool-context... no checking whether C compiler handles -Wint-to-pointer-cast... yes checking whether C compiler handles -Winvalid-memory-model... yes checking whether C compiler handles -Winvalid-pch... yes checking whether C compiler handles -Wlogical-not-parentheses... no checking whether C compiler handles -Wlogical-op... yes checking whether C compiler handles -Wmain... yes checking whether C compiler handles -Wmaybe-uninitialized... yes checking whether C compiler handles -Wmemset-elt-size... no checking whether C compiler handles -Wmemset-transposed-args... no checking whether C compiler handles -Wmisleading-indentation... no checking whether C compiler handles -Wmissing-attributes... no checking whether C compiler handles -Wmissing-braces... yes checking whether C compiler handles -Wmissing-declarations... yes checking whether C compiler handles -Wmissing-field-initializers... yes checking whether C compiler handles -Wmissing-include-dirs... yes checking whether C compiler handles -Wmissing-parameter-type... yes checking whether C compiler handles -Wmissing-prototypes... yes checking whether C compiler handles -Wmultichar... yes checking whether C compiler handles -Wmultistatement-macros... no checking whether C compiler handles -Wnarrowing... yes checking whether C compiler handles -Wnested-externs... yes checking whether C compiler handles -Wnonnull... yes checking whether C compiler handles -Wnonnull-compare... no checking whether C compiler handles -Wnull-dereference... no checking whether C compiler handles -Wodr... no checking whether C compiler handles -Wold-style-declaration... yes checking whether C compiler handles -Wold-style-definition... yes checking whether C compiler handles -Wopenmp-simd... no checking whether C compiler handles -Woverflow... yes checking whether C compiler handles -Woverride-init... yes checking whether C compiler handles -Wpacked-bitfield-compat... yes checking whether C compiler handles -Wpacked-not-aligned... no checking whether C compiler handles -Wparentheses... yes checking whether C compiler handles -Wpointer-arith... yes checking whether C compiler handles -Wpointer-compare... no checking whether C compiler handles -Wpointer-sign... yes checking whether C compiler handles -Wpointer-to-int-cast... yes checking whether C compiler handles -Wpragmas... yes checking whether C compiler handles -Wpsabi... yes checking whether C compiler handles -Wrestrict... no checking whether C compiler handles -Wreturn-local-addr... yes checking whether C compiler handles -Wreturn-type... yes checking whether C compiler handles -Wscalar-storage-order... no checking whether C compiler handles -Wsequence-point... yes checking whether C compiler handles -Wshadow... yes checking whether C compiler handles -Wshift-count-negative... no checking whether C compiler handles -Wshift-count-overflow... no checking whether C compiler handles -Wshift-negative-value... no checking whether C compiler handles -Wsizeof-array-argument... no checking whether C compiler handles -Wsizeof-pointer-div... no checking whether C compiler handles -Wsizeof-pointer-memaccess... yes checking whether C compiler handles -Wstrict-aliasing... yes checking whether C compiler handles -Wstrict-prototypes... yes checking whether C compiler handles -Wstringop-truncation... no checking whether C compiler handles -Wsuggest-attribute=cold... no checking whether C compiler handles -Wsuggest-attribute=const... yes checking whether C compiler handles -Wsuggest-attribute=format... yes checking whether C compiler handles -Wsuggest-attribute=malloc... no checking whether C compiler handles -Wsuggest-attribute=noreturn... yes checking whether C compiler handles -Wsuggest-attribute=pure... yes checking whether C compiler handles -Wsuggest-final-methods... no checking whether C compiler handles -Wsuggest-final-types... no checking whether C compiler handles -Wswitch... yes checking whether C compiler handles -Wswitch-bool... no checking whether C compiler handles -Wswitch-unreachable... no checking whether C compiler handles -Wsync-nand... yes checking whether C compiler handles -Wtautological-compare... no checking whether C compiler handles -Wtrampolines... yes checking whether C compiler handles -Wtrigraphs... yes checking whether C compiler handles -Wtype-limits... yes checking whether C compiler handles -Wuninitialized... yes checking whether C compiler handles -Wunknown-pragmas... yes checking whether C compiler handles -Wunused... yes checking whether C compiler handles -Wunused-but-set-parameter... yes checking whether C compiler handles -Wunused-but-set-variable... yes checking whether C compiler handles -Wunused-function... yes checking whether C compiler handles -Wunused-label... yes checking whether C compiler handles -Wunused-local-typedefs... yes checking whether C compiler handles -Wunused-parameter... yes checking whether C compiler handles -Wunused-result... yes checking whether C compiler handles -Wunused-value... yes checking whether C compiler handles -Wunused-variable... yes checking whether C compiler handles -Wvarargs... yes checking whether C compiler handles -Wvariadic-macros... yes checking whether C compiler handles -Wvector-operation-performance... yes checking whether C compiler handles -Wvolatile-register-var... yes checking whether C compiler handles -Wwrite-strings... yes checking whether C compiler handles -Walloc-size-larger-than=9223372036854775807... no checking whether C compiler handles -Warray-bounds=2... no checking whether C compiler handles -Wformat-overflow=2... no checking whether C compiler handles -Wformat-truncation=2... no checking whether C compiler handles -Wimplicit-fallthrough=5... no checking whether C compiler handles -Wnormalized=nfc... yes checking whether C compiler handles -Wshift-overflow=2... no checking whether C compiler handles -Wstringop-overflow=2... no checking whether C compiler handles -Wunused-const-variable=2... no checking whether C compiler handles -Wvla-larger-than=4031... no checking whether C compiler handles -Wno-sign-compare... yes checking whether C compiler handles -Wno-cast-function-type... no checking whether C compiler handles -Wjump-misses-init... yes checking whether C compiler handles -Wswitch-enum... yes checking whether C compiler handles -Wno-format-nonliteral... yes checking whether C compiler handles -Wno-format-truncation... no checking whether C compiler handles -fstack-protector-strong... yes checking whether C compiler handles -fexceptions... yes checking whether C compiler handles -fasynchronous-unwind-tables... yes checking whether C compiler handles -fipa-pure-const... yes checking whether C compiler handles -Wno-suggest-attribute=pure... yes checking whether C compiler handles -Wno-suggest-attribute=const... yes checking whether C compiler handles -Werror... yes checking whether C compiler handles -fPIE -DPIE -pie... yes checking for how to force completely read-only GOT table... -Wl,-z -Wl,relro -Wl,-z -Wl,now checking for how to avoid indirect lib deps... -Wl,--no-copy-dt-needed-entries checking for how to stop undefined symbols at link time... -Wl,-z -Wl,defs checking sys/acl.h usability... yes checking sys/acl.h presence... yes checking for sys/acl.h... yes checking for aa_change_profile in -lapparmor... no checking for pthread_mutexattr_init... yes checking for pthread.h... (cached) yes checking whether pthread_sigmask does anything... yes checking for atomic ops implementation... gcc checking for getxattr in -lattr... yes checking sys/xattr.h usability... yes checking sys/xattr.h presence... yes checking for sys/xattr.h... yes checking for audit_encode_nv_string in -laudit... yes checking libaudit.h usability... yes checking libaudit.h presence... yes checking for libaudit.h... yes checking for pkg-config... /usr/bin/pkg-config checking pkg-config is at least version 0.9.0... yes checking for AVAHI... yes checking for library containing tgetent... -lncurses checking whether rl_completion_quote_character is declared... yes checking for readline in -lreadline... yes checking readline/readline.h usability... yes checking readline/readline.h presence... yes checking for readline/readline.h... yes checking for rl_initialize in -lreadline... yes checking for BASH_COMPLETION... no checking for BLKID... yes checking for capng_updatev in -lcap-ng... yes checking cap-ng.h usability... yes checking cap-ng.h presence... yes checking for cap-ng.h... yes checking for CURL... yes checking for DBUS... yes checking for dbus_watch_get_unix_fd... yes checking for DBusBasicValue... yes checking for DEVMAPPER... yes checking for dlfcn.h... (cached) yes checking for library containing dlopen... -ldl checking for FUSE... yes checking for GLUSTERFS... yes checking for GNUTLS... yes checking for HAL... no checking for LIBISCSI... no checking for NETCF... yes checking for ncf_change_begin... yes checking whether to compile with macvtap support... yes checking whether MACVLAN_MODE_PASSTHRU is declared... yes checking for LIBNL... yes checking for LIBNL_ROUTE3... yes checking for LIBPARTED... yes checking for parted... /sbin/parted checking libpcap pcap-config >= 1.0.0 ... yes checking for LIBSSH... no checking for LIBXML... yes checking for struct _xmlURI.query_raw... yes checking whether to compile with macvtap support... yes checking whether MACVLAN_MODE_PASSTHRU is declared... (cached) yes checking for NETCF... yes checking for ncf_change_begin... (cached) yes checking for gettext... yes checking for libintl.h... (cached) yes checking for xgettext... xgettext checking for msgfmt... msgfmt checking for msgmerge... msgmerge checking msgfmt is GNU tool... yes checking for numa_available in -lnuma... yes checking numa.h usability... yes checking numa.h presence... yes checking for numa.h... yes checking for numa_bitmask_isbitset in -lnuma... yes checking for OPENWSMAN... no checking for PCIACCESS... yes checking for init script type... systemd checking for pkcheck... /usr/bin/pkcheck checking for pthread_mutexattr_init... (cached) yes checking for pthread.h... (cached) yes checking whether pthread_sigmask does anything... (cached) yes checking for library containing tgetent... (cached) -lncurses checking whether rl_completion_quote_character is declared... (cached) yes checking for readline in -lreadline... (cached) yes checking for readline/readline.h... (cached) yes checking for rl_initialize in -lreadline... (cached) yes checking for sanlock_init in -lsanlock_client... yes checking sanlock.h usability... yes checking sanlock.h presence... yes checking for sanlock.h... yes checking whether SANLK_INQ_WAIT is declared... yes checking for sanlock_killpath in -lsanlock_client... yes checking for sanlock_inq_lockspace in -lsanlock_client... yes checking for sanlock_write_lockspace in -lsanlock_client... yes checking for sanlock_strerror in -lsanlock_client... yes checking for sasl_client_init in -lsasl2... yes checking sasl/sasl.h usability... yes checking sasl/sasl.h presence... yes checking for sasl/sasl.h... yes checking for fgetfilecon_raw in -lselinux... yes checking selinux/selinux.h usability... yes checking selinux/selinux.h presence... yes checking for selinux/selinux.h... yes checking for selinux setcon parameter type... const checking for selinux selabel_open parameter type... const checking SELinux mount point... /sys/fs/selinux checking selinux/label.h usability... yes checking selinux/label.h presence... yes checking for selinux/label.h... yes checking for SSH2... no checking for UDEV... yes checking for udev_monitor_set_receive_buffer_size... yes checking whether to compile with virtual port support... yes checking for WIRESHARK_DISSECTOR... no checking for xdrmem_create in -lportablexdr... no checking for library containing xdrmem_create... none required checking for xdr_u_int64_t... no checking where to find <rpc/rpc.h>... none checking for qemu-kvm... no checking for qemu... no checking for kvm... no checking for qemu-system-x86_64... no checking for yajl_parse_complete in -lyajl... no checking for yajl_tree_parse in -lyajl... yes checking yajl/yajl_common.h usability... yes checking yajl/yajl_common.h presence... yes checking for yajl/yajl_common.h... yes checking size of long... 8 checking ifaddrs.h usability... yes checking ifaddrs.h presence... yes checking for ifaddrs.h... yes checking libtasn1.h usability... yes checking libtasn1.h presence... yes checking for libtasn1.h... yes checking linux/magic.h usability... yes checking linux/magic.h presence... yes checking for linux/magic.h... yes checking mntent.h usability... yes checking mntent.h presence... yes checking for mntent.h... yes checking net/ethernet.h usability... yes checking net/ethernet.h presence... yes checking for net/ethernet.h... yes checking netinet/tcp.h usability... yes checking netinet/tcp.h presence... yes checking for netinet/tcp.h... yes checking pwd.h usability... yes checking pwd.h presence... yes checking for pwd.h... yes checking stdarg.h usability... yes checking stdarg.h presence... yes checking for stdarg.h... yes checking syslog.h usability... yes checking syslog.h presence... yes checking for syslog.h... yes checking sys/mount.h usability... yes checking sys/mount.h presence... yes checking for sys/mount.h... yes checking sys/syscall.h usability... yes checking sys/syscall.h presence... yes checking for sys/syscall.h... yes checking for sys/sysctl.h... (cached) yes checking sys/ucred.h usability... no checking sys/ucred.h presence... no checking for sys/ucred.h... no checking sys/un.h usability... yes checking sys/un.h presence... yes checking for sys/un.h... yes checking whether htole64 is declared... yes checking for stat... yes checking for stat64... yes checking for __xstat... yes checking for __xstat64... yes checking for lstat... (cached) yes checking for lstat64... yes checking for __lxstat... yes checking for __lxstat64... yes checking for struct ifreq... yes checking for struct sockpeercred... no checking whether ETH_FLAG_TXVLAN is declared... yes checking whether ETH_FLAG_NTUPLE is declared... yes checking whether ETH_FLAG_RXHASH is declared... yes checking whether ETH_FLAG_LRO is declared... yes checking whether ETHTOOL_GGSO is declared... yes checking whether ETHTOOL_GGRO is declared... yes checking whether ETHTOOL_GFLAGS is declared... yes checking whether ETHTOOL_GFEATURES is declared... yes checking whether ETHTOOL_SCOALESCE is declared... yes checking whether ETHTOOL_GCOALESCE is declared... yes checking whether SEEK_HOLE is declared... yes checking for gettext in -lintl... no checking for rpcgen... /usr/bin/rpcgen checking for xmllint... /usr/bin/xmllint checking for xsltproc... /usr/bin/xsltproc checking for augparse... /usr/bin/augparse checking whether ln -s works... yes checking for dmidecode... /sbin/dmidecode checking for dnsmasq... /sbin/dnsmasq checking for radvd... /sbin/radvd checking for tc... /sbin/tc checking for udevadm... /usr/bin/udevadm checking for udevsettle... no checking for modprobe... /sbin/modprobe checking for rmmod... /sbin/rmmod checking for mm-ctl... mm-ctl checking for ovs-vsctl... ovs-vsctl checking for scrub... /usr/bin/scrub checking for addr2line... /usr/bin/addr2line checking for ip... /sbin/ip checking for iptables... /sbin/iptables checking for ip6tables... /sbin/ip6tables checking for ebtables... /sbin/ebtables checking for qemu-bridge-helper... /usr/libexec/qemu-bridge-helper checking for qemu-pr-helper... /usr/bin/qemu-pr-helper checking for xen_vm_start in -lxenserver... no checking for LIBXL... no checking for libxl_cpupool_cpuadd_cpumap in -lxenlight... no checking whether LIBXL_DOMAIN_TYPE_PVH is declared... no checking for PARALLELS_SDK... no checking for bhyve... no checking for bhyvectl... no checking for bhyveload... no checking for dtrace... /usr/bin/dtrace checking for numad... /usr/bin/numad checking for init script type... systemd checking for whether to install sysctl config... yes checking nss.h usability... yes checking nss.h presence... yes checking for nss.h... yes checking for struct gaih_addrtuple... yes checking for ns_mtab... no checking for nss_module_unregister_fn... no checking linux/kvm.h usability... yes checking linux/kvm.h presence... yes checking for linux/kvm.h... yes checking whether <linux/*.h> and <netinet/*.h> headers are compatible... yes checking for linux/param.h... yes checking for linux/sockios.h... yes checking for linux/if_bridge.h... yes checking for linux/if_tun.h... yes checking for pkg-config... (cached) /usr/bin/pkg-config checking pkg-config is at least version 0.9.0... yes checking for selinux_virtual_domain_context_path... yes checking for selinux_virtual_image_context_path... yes checking for selinux_lxc_contexts_path... yes checking for mntent.h... (cached) yes checking for mount... /usr/bin/mount checking for umount... /usr/bin/umount checking for mkfs... /sbin/mkfs checking for showmount... /sbin/showmount checking for pvcreate... /sbin/pvcreate checking for vgcreate... /sbin/vgcreate checking for lvcreate... /sbin/lvcreate checking for pvremove... /sbin/pvremove checking for vgremove... /sbin/vgremove checking for lvremove... /sbin/lvremove checking for lvchange... /sbin/lvchange checking for vgchange... /sbin/vgchange checking for vgscan... /sbin/vgscan checking for pvs... /sbin/pvs checking for vgs... /sbin/vgs checking for lvs... /sbin/lvs checking for iscsiadm... /sbin/iscsiadm checking rbd/librbd.h usability... yes checking rbd/librbd.h presence... yes checking for rbd/librbd.h... yes checking for rbd_get_features... yes checking for collie... no checking for dog... no checking for zfs... no checking for zpool... no checking for vstorage... no checking for vstorage-mount... no checking for umount... (cached) /usr/bin/umount checking linux/btrfs.h usability... yes checking linux/btrfs.h presence... yes checking for linux/btrfs.h... yes checking xfs/xfs.h usability... no checking xfs/xfs.h presence... no checking for xfs/xfs.h... no checking linux/devlink.h usability... yes checking linux/devlink.h presence... yes checking for linux/devlink.h... yes checking whether DEVLINK_CMD_ESWITCH_GET is declared... yes checking whether VHOST_VSOCK_SET_GUEST_CID is declared... yes checking for python3... /usr/bin/python3 checking for perl... /usr/bin/perl checking Whether to build test suite by default... yes checking whether GET_VLAN_VID_CMD is declared... yes checking for struct ifreq.ifr_newname... yes checking for struct ifreq.ifr_ifindex... yes checking for struct ifreq.ifr_index... no checking for struct ifreq.ifr_hwaddr... yes checking whether BRDGSFD is declared... no checking whether BRDGADD is declared... no checking whether BRDGDEL is declared... no checking whether cpuset_getaffinity is declared... no checking for struct if_data.ifi_oqdrops... no checking whether clock_serv_t is declared... no checking whether host_get_clock_service is declared... no checking whether clock_get_time is declared... no checking whether this build is done by a static analysis tool... no checking that generated files are newer than configure... done configure: creating ./config.status config.status: creating run config.status: creating Makefile config.status: creating src/Makefile config.status: creating include/libvirt/Makefile config.status: creating docs/Makefile config.status: creating gnulib/lib/Makefile config.status: creating gnulib/tests/Makefile config.status: creating .color_coded config.status: creating .ycm_extra_conf.py config.status: creating libvirt.pc config.status: creating libvirt-qemu.pc config.status: creating libvirt-lxc.pc config.status: creating libvirt-admin.pc config.status: creating src/libvirt.pc config.status: creating src/libvirt-qemu.pc config.status: creating src/libvirt-lxc.pc config.status: creating libvirt.spec config.status: creating mingw-libvirt.spec config.status: creating po/Makefile config.status: creating include/libvirt/libvirt-common.h config.status: creating examples/Makefile config.status: creating tests/Makefile config.status: creating tools/Makefile config.status: creating config.h config.status: executing depfiles commands config.status: executing libtool commands configure: configure: Configuration summary configure: ===================== configure: configure: Drivers configure: configure: QEMU: yes configure: OpenVZ: yes configure: VMware: yes configure: VBox: yes configure: XenAPI: no configure: libxl: no configure: LXC: yes configure: PHYP: no configure: ESX: yes configure: Hyper-V: no configure: vz: no configure: Bhyve: no configure: Test: yes configure: Remote: yes configure: Network: yes configure: Libvirtd: yes configure: Interface: yes configure: configure: Storage Drivers configure: configure: Dir: yes configure: FS: yes configure: NetFS: yes configure: LVM: yes configure: iSCSI: yes configure: iscsi-direct: no configure: SCSI: yes configure: mpath: yes configure: Disk: yes configure: RBD: yes configure: Sheepdog: no configure: Gluster: yes configure: ZFS: no configure: Virtuozzo storage: no configure: configure: Security Drivers configure: configure: SELinux: yes configure: AppArmor: no configure: configure: Driver Loadable Modules configure: configure: driver_modules: yes (CFLAGS='' LIBS='-ldl') configure: configure: Libraries configure: configure: acl: yes (CFLAGS='' LIBS='-lacl') configure: apparmor: no configure: attr: yes (CFLAGS='' LIBS='-lattr') configure: audit: yes (CFLAGS='' LIBS='-laudit') configure: avahi: yes (CFLAGS='-D_REENTRANT ' LIBS='-lavahi-common -lavahi-client ') configure: bash_completion: no configure: blkid: yes (CFLAGS='-I/usr/include/blkid -I/usr/include/uuid ' LIBS='-lblkid ') configure: capng: yes (CFLAGS='' LIBS='-lcap-ng') configure: curl: yes (CFLAGS='-DCURL_DISABLE_TYPECHECK ' LIBS='-lcurl ') configure: dbus: yes (CFLAGS='-I/usr/include/dbus-1.0 -I/usr/lib64/dbus-1.0/include ' LIBS='-ldbus-1 ') configure: dlopen: yes (CFLAGS='' LIBS='-ldl') configure: firewalld: yes (CFLAGS='' LIBS='') configure: fuse: yes (CFLAGS='-D_FILE_OFFSET_BITS=64 -I/usr/include/fuse ' LIBS='-pthread -lfuse ') configure: glusterfs: yes (CFLAGS='-D_FILE_OFFSET_BITS=64 -D__USE_FILE_OFFSET64 -DUSE_POSIX_ACLS=1 -I/usr/include/glusterfs -I/usr/include/uuid ' LIBS='-lacl -lgfapi -lglusterfs -lgfrpc -lgfxdr -luuid ') configure: gnutls: yes (CFLAGS='-I/usr/include/p11-kit-1 ' LIBS='-lgnutls ') configure: hal: no configure: libiscsi: no configure: libnl: yes (CFLAGS='-I/usr/include/libnl3 -I/usr/include/libnl3 ' LIBS='-lnl-3 -lnl-route-3 -lnl-3 ') configure: libpcap: yes (CFLAGS='' LIBS='-lpcap') configure: libssh: no configure: libxl: no configure: libxml: yes (CFLAGS='-I/usr/include/libxml2 ' LIBS='-lxml2 ') configure: macvtap: yes (CFLAGS='' LIBS='') configure: netcf: yes (CFLAGS=' ' LIBS='-lnetcf ') configure: NLS: yes configure: nss: yes configure: numactl: yes (CFLAGS='' LIBS='-lnuma') configure: openwsman: no configure: pciaccess: yes (CFLAGS=' ' LIBS='-lpciaccess ') configure: pm_utils: no configure: polkit: yes configure: rbd: yes (CFLAGS='' LIBS='-lrbd -lrados') configure: readline: yes (CFLAGS='-D_FUNCTION_DEF ' LIBS='-lreadline') configure: sanlock: yes (CFLAGS='' LIBS='-lsanlock_client') configure: sasl: yes (CFLAGS='' LIBS='-lsasl2') configure: selinux: yes (CFLAGS='' LIBS='-lselinux') configure: ssh2: no configure: udev: yes (CFLAGS=' ' LIBS='-ludev ') configure: virtualport: yes (CFLAGS='' LIBS='') configure: xdr: yes (CFLAGS='' LIBS='') configure: xenapi: no configure: yajl: yes (CFLAGS='' LIBS='-lyajl') configure: configure: Windows configure: configure: Cygwin: no configure: MinGW: no configure: MSVC: no configure: windres: no configure: configure: Test suite configure: configure: Coverage: no configure: Alloc OOM: no configure: configure: Miscellaneous configure: configure: Debug: yes configure: Use -Werror: yes configure: Warning Flags: -fno-common -W -Waddress -Waggressive-loop-optimizations -Wall -Wattributes -Wbad-function-cast -Wbuiltin-macro-redefined -Wcast-align -Wchar-subscripts -Wclobbered -Wcomment -Wcomments -Wcoverage-mismatch -Wcpp -Wdeprecated-declarations -Wdiv-by-zero -Wdouble-promotion -Wempty-body -Wendif-labels -Wextra -Wformat-contains-nul -Wformat-extra-args -Wformat-security -Wformat-y2k -Wformat-zero-length -Wfree-nonheap-object -Wignored-qualifiers -Wimplicit -Wimplicit-function-declaration -Wimplicit-int -Winit-self -Winline -Wint-to-pointer-cast -Winvalid-memory-model -Winvalid-pch -Wlogical-op -Wmain -Wmaybe-uninitialized -Wmissing-braces -Wmissing-declarations -Wmissing-field-initializers -Wmissing-include-dirs -Wmissing-parameter-type -Wmissing-prototypes -Wmultichar -Wnarrowing -Wnested-externs -Wnonnull -Wold-style-declaration -Wold-style-definition -Woverflow -Woverride-init -Wpacked-bitfield-compat -Wparentheses -Wpointer-arith -Wpointer-sign -Wpointer-to-int-cast -Wpragmas -Wpsabi -Wreturn-local-addr -Wreturn-type -Wsequence-point -Wshadow -Wsizeof-pointer-memaccess -Wstrict-aliasing -Wstrict-prototypes -Wsuggest-attribute=const -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure -Wswitch -Wsync-nand -Wtrampolines -Wtrigraphs -Wtype-limits -Wuninitialized -Wunknown-pragmas -Wunused -Wunused-but-set-parameter -Wunused-but-set-variable -Wunused-function -Wunused-label -Wunused-local-typedefs -Wunused-parameter -Wunused-result -Wunused-value -Wunused-variable -Wvarargs -Wvariadic-macros -Wvector-operation-performance -Wvolatile-register-var -Wwrite-strings -Wnormalized=nfc -Wno-sign-compare -Wjump-misses-init -Wswitch-enum -Wno-format-nonliteral -fstack-protector-strong -fexceptions -fasynchronous-unwind-tables -fipa-pure-const -Wno-suggest-attribute=pure -Wno-suggest-attribute=const -Werror configure: DTrace: yes configure: numad: yes configure: Init script: systemd configure: Char device locks: /var/lock configure: Default Editor: vi configure: Loader/NVRAM: configure: virt-login-shell: yes configure: virt-host-validate: yes configure: TLS priority: NORMAL configure: configure: Developer Tools configure: configure: wireshark_dissector: no configure: configure: Privileges configure: configure: QEMU: root:root configure: Now type 'make' to compile libvirt. GEN spacing-check GEN test-wrap-argv GEN prohibit-duplicate-header GEN mock-noinline GEN group-qemu-caps GEN header-ifdef GFDL_version 0.78 GFDL_version TAB_in_indentation 0.54 TAB_in_indentation Wundef_boolean 0.15 Wundef_boolean avoid_attribute_unused_in_header 0.24 avoid_attribute_unused_in_header avoid_ctype_macros 0.54 avoid_ctype_macros avoid_if_before_free 4.48 avoid_if_before_free avoid_strcase 0.78 avoid_strcase avoid_write 0.23 avoid_write bindtextdomain 0.12 bindtextdomain cast_of_argument_to_free 0.86 cast_of_argument_to_free cast_of_x_alloc_return_value 0.75 cast_of_x_alloc_return_value changelog 0.15 changelog const_long_option 0.77 const_long_option copyright_check 0.45 copyright_check copyright_format 2.03 copyright_format copyright_usage 1.65 copyright_usage correct_id_types 0.96 correct_id_types curly_braces_style 1.04 curly_braces_style error_message_period 0.55 error_message_period error_message_warn_fatal 0.49 error_message_warn_fatal flags_debug 1.16 flags_debug flags_usage 1.26 flags_usage forbid_const_pointer_typedef 1.54 forbid_const_pointer_typedef forbid_manual_xml_indent 0.53 forbid_manual_xml_indent gettext_init 0.24 gettext_init libvirt_unmarked_diagnostics 1.48 libvirt_unmarked_diagnostics m4_quote_check 0.20 m4_quote_check makefile_TAB_only_indentation 0.21 makefile_TAB_only_indentation makefile_at_at_check 0.13 makefile_at_at_check makefile_conditionals 0.20 makefile_conditionals make -C src remote/remote_daemon_dispatch_stubs.h make[1]: Entering directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' GEN remote/remote_daemon_dispatch_stubs.h make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' make -C src remote/remote_daemon_dispatch_qemu_stubs.h make[1]: Entering directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' GEN remote/remote_daemon_dispatch_qemu_stubs.h make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' make -C src remote/remote_client_bodies.h make[1]: Entering directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' GEN remote/remote_client_bodies.h make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' make -C src admin/admin_server_dispatch_stubs.h make[1]: Entering directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' GEN admin/admin_server_dispatch_stubs.h make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' make -C src admin/admin_client.h make[1]: Entering directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' GEN admin/admin_client.h make[1]: Leaving directory `/var/tmp/patchew-tester-tmp-_fi_g3vl/src/src' po_check 0.01 po_check preprocessor_indentation maint.mk: skipping test sc_preprocessor_indentation: cppi not installed 0.01 preprocessor_indentation prohibit_HAVE_MBRTOWC 0.52 prohibit_HAVE_MBRTOWC prohibit_PATH_MAX 0.64 prohibit_PATH_MAX prohibit_VIR_ERR_NO_MEMORY 0.74 prohibit_VIR_ERR_NO_MEMORY prohibit_access_xok 0.79 prohibit_access_xok prohibit_always-defined_macros 0.85 prohibit_always-defined_macros prohibit_always_true_header_tests 0.75 prohibit_always_true_header_tests prohibit_argmatch_without_use 0.27 prohibit_argmatch_without_use prohibit_asprintf 1.50 prohibit_asprintf prohibit_assert_without_use 0.32 prohibit_assert_without_use prohibit_atoi 0.83 prohibit_atoi prohibit_author 0.66 prohibit_author prohibit_backslash_alignment src/util/virutil.h:32:# define MIN(a, b) ({ \ src/util/virutil.h:33: __auto_type _a = (a); \ src/util/virutil.h:34: __auto_type _b = (b); \ src/util/virutil.h:35: _a < _b ? _a : _b; \ src/util/virutil.h:43:# define MAX(a, b) ({ \ src/util/virutil.h:44: __auto_type _a = (a); \ src/util/virutil.h:45: __auto_type _b = (b); \ src/util/virutil.h:46: _a > _b ? _a : _b; \ maint.mk: Do not attempt to right-align backslashes make: *** [sc_prohibit_backslash_alignment] Error 1 real 10m46.109s user 9m0.133s sys 3m55.824s === OUTPUT END === Test command exited with code: 2 --- Email generated automatically by Patchew [http://patchew.org/]. Please send your feedback to patchew-devel@redhat.com
On Fri, Jan 04, 2019 at 10:00:12 -0600, Eric Blake wrote:
We might as well take advantage of gcc's extensions for a safer MIN()/MAX() macro.
Signed-off-by: Eric Blake <eblake@redhat.com> ---
RFC because we could also try to fall back to older gcc's typeof(a)_a=(a) when the newer __auto_type _a=(a) is not present, and because I don't know how to properly probe for __auto_type and/or typeof support in clang (I know that clang added __auto_type in 2015, per https://reviews.llvm.org/D12686); I also don't know if we have officially stated that we require gcc/clang (because of attribute((cleanup)), which really cannot be emulated without extensions), or if we still try to allow compilation with other compilers; if we have, I don't know if we have declared a minimum compiler version that we demand (qemu has recently demanded gcc 4.8 or clang 3.4 [branded 5.1 on Apple]).
src/util/virutil.h | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/src/util/virutil.h b/src/util/virutil.h index 908d8920ec..364e354bcb 100644 --- a/src/util/virutil.h +++ b/src/util/virutil.h @@ -28,10 +28,26 @@ # include <sys/types.h>
# ifndef MIN -# define MIN(a, b) ((a) < (b) ? (a) : (b)) +# if __GNUC_PREREQ(4, 9) +# define MIN(a, b) ({ \ + __auto_type _a = (a); \ + __auto_type _b = (b); \ + _a < _b ? _a : _b; \ + }) +# else +# define MIN(a, b) ((a) < (b) ? (a) : (b)) +# endif # endif # ifndef MAX -# define MAX(a, b) ((a) > (b) ? (a) : (b)) +# if __GNUC_PREREQ(4, 9) +# define MAX(a, b) ({ \ + __auto_type _a = (a); \ + __auto_type _b = (b); \ + _a > _b ? _a : _b; \ + }) +# else +# define MAX(a, b) ((a) > (b) ? (a) : (b)) +# endif
I think we don't really need this patch at all. It makes sure the arguments are only evaluated once, but since this is all conditional (not only the safer variants, but the implementation can even be provided externally), we still have to care what arguments we pass to MIN/MAX. In other words, I think this actually reduces the safety of our code. Jirka
On 1/4/19 10:49 AM, Jiri Denemark wrote:
On Fri, Jan 04, 2019 at 10:00:12 -0600, Eric Blake wrote:
We might as well take advantage of gcc's extensions for a safer MIN()/MAX() macro.
Signed-off-by: Eric Blake <eblake@redhat.com> ---
I think we don't really need this patch at all. It makes sure the arguments are only evaluated once, but since this is all conditional (not only the safer variants, but the implementation can even be provided externally), we still have to care what arguments we pass to MIN/MAX.
In other words, I think this actually reduces the safety of our code.
Fair enough, although your complaint could be overcome by rewriting the patch to do: #ifdef MIN # undef MIN #endif #define MIN() ... to ensure our code ALWAYS uses our safe form, rather than what it may have picked up from somewhere else. On the other hand, ditching the patch also means I don't have to solve the compilation error about gcc not liking global variables defined with: type name[({expr})] due to it not loking ({}) used in constant expression contexts. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3226 Virtualization: qemu.org | libvirt.org
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