Re: [libvirt] [PATCH v1 1/7] configure: Check for statfs

The statfs(2) gets filesystem statistics. Currently, we use it only on linux, and leave stub to implement on other platforms. But hey, other platforms (like FreeBSD) have statfs() too. If we check it in configure we can wider platforms supported. Speaking of FreeBSD, the headers to include are of course different: sys/param.h and sys/mount.h on the FreeBSD and sys/statfs.h on the Linux. The header files are checked too. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- configure.ac | 4 ++-- src/util/virfile.c | 21 ++++++++++++++------- 2 files changed, 16 insertions(+), 9 deletions(-) diff --git a/configure.ac b/configure.ac index 8001e24..68ebf75 100644 --- a/configure.ac +++ b/configure.ac @@ -275,7 +275,7 @@ dnl and various less common threadsafe functions AC_CHECK_FUNCS_ONCE([cfmakeraw fallocate geteuid getgid getgrnam_r \ getmntent_r getpwuid_r getuid kill mmap newlocale posix_fallocate \ posix_memalign prlimit regexec sched_getaffinity setgroups setns \ - setrlimit symlink sysctlbyname getifaddrs]) + setrlimit symlink sysctlbyname getifaddrs statfs]) dnl Availability of pthread functions. Because of $LIB_PTHREAD, we dnl cannot use AC_CHECK_FUNCS_ONCE. LIB_PTHREAD and LIBMULTITHREAD @@ -316,7 +316,7 @@ dnl Availability of various common headers (non-fatal if missing). AC_CHECK_HEADERS([pwd.h paths.h regex.h sys/un.h \ sys/poll.h syslog.h mntent.h net/ethernet.h linux/magic.h \ sys/un.h sys/syscall.h sys/sysctl.h netinet/tcp.h ifaddrs.h \ - libtasn1.h sys/ucred.h sys/mount.h]) + libtasn1.h sys/ucred.h sys/mount.h sys/param.h sys/statfs.h]) dnl Check whether endian provides handy macros. AC_CHECK_DECLS([htole64], [], [], [[#include <endian.h>]]) diff --git a/src/util/virfile.c b/src/util/virfile.c index 463064c..699b9f8 100644 --- a/src/util/virfile.c +++ b/src/util/virfile.c @@ -43,11 +43,15 @@ # include <sys/mman.h> #endif -#ifdef __linux__ -# if HAVE_LINUX_MAGIC_H -# include <linux/magic.h> -# endif +#if HAVE_LINUX_MAGIC_H +# include <linux/magic.h> +#endif + +#ifdef HAVE_SYS_STATFS_H # include <sys/statfs.h> +#elif defined HAVE_SYS_PARAM_H && defined HAVE_SYS_MOUNT_H +# include <sys/param.h> +# include <sys/mount.h> #endif #if defined(__linux__) && HAVE_DECL_LO_FLAGS_AUTOCLEAR @@ -2817,7 +2821,7 @@ int virFilePrintf(FILE *fp, const char *msg, ...) } -#ifdef __linux__ +#ifdef HAVE_STATFS # ifndef NFS_SUPER_MAGIC # define NFS_SUPER_MAGIC 0x6969