[libvirt] [sandbox] configure: check for static libc

Missing static libc doesn't really prevent the build to finish, but it would cause errors when running qemu sandboxes. Checking in configure will save time for new developers. --- configure.ac | 2 ++ m4/virt-static.m4 | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 35 insertions(+) create mode 100644 m4/virt-static.m4 diff --git a/configure.ac b/configure.ac index 0e49a0a..ba5247a 100644 --- a/configure.ac +++ b/configure.ac @@ -87,6 +87,8 @@ LIBVIRT_SANDBOX_COVERAGE LIBVIRT_SANDBOX_RPCGEN LIBVIRT_SANDBOX_SELINUX +LIBVIRT_SANDBOX_STATIC_LIBC + GOBJECT_INTROSPECTION_CHECK([$GOBJECT_INTROSPECTION_REQUIRED]) dnl Should be in m4/virt-gettext.m4 but intltoolize is too diff --git a/m4/virt-static.m4 b/m4/virt-static.m4 new file mode 100644 index 0000000..8a40351 --- /dev/null +++ b/m4/virt-static.m4 @@ -0,0 +1,33 @@ +# LIBVIRT_SANDBOX_STATIC_LIB(NAME, CFLAGS, LDFLAGS, PROLOG, PROGRAM) +# ------------------------------------------------------------------ +# Check if the program can be linked with static libraries only. +# +AC_DEFUN([LIBVIRT_SANDBOX_STATIC_LIB], [ + AC_MSG_CHECKING([for static $1]) + + SAVED_LDFLAGS=$LDFLAGS + SAVED_CFLAGS=$CFLAGS + CFLAGS="$2" + LDFLAGS="-static $3" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([$4], + [$5])], + [], + [AC_MSG_RESULT([no])] + [AC_MSG_ERROR([static $1 is required in order to build virt-sandbox-init-qemu])] + ) + LDFLAGS=$SAVED_LDFLAGS + CFLAGS=$SAVED_CFLAGS + + AC_MSG_RESULT([yes]) +]) + +AC_DEFUN([LIBVIRT_SANDBOX_STATIC_LIBC], [ + LIBVIRT_SANDBOX_STATIC_LIB( + [LIBC], + [], + [], + [#include <stdio.h>], + [printf("bar");]) +]) + -- 2.1.4