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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2013-09-06 15:27:04 +0200 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2013-09-06 11:06:19 -0300 |
| commit | dc8ed09f8f21d17ef9481001683d7edfdb308983 (patch) | |
| tree | 1a8bf2807d8a3aea3d0a9daf39b105a1d2603cee /configure.ac | |
| parent | 7e0385c47ae7c313a59de3ea431af7b5d18807d7 (diff) | |
| download | kmod-dc8ed09f8f21d17ef9481001683d7edfdb308983.tar.gz kmod-dc8ed09f8f21d17ef9481001683d7edfdb308983.tar.bz2 kmod-dc8ed09f8f21d17ef9481001683d7edfdb308983.zip | |
Add configure check for _Static_assert()
Commit 8efede20ef ("Use _Static_assert") introduced the usage of
_Static_assert(). However, _Static_assert() is a fairly new thing,
since it was introduced only in gcc 4.6. In order to support older
compilers, this patch adds a configure.in test that checks whether
_Static_assert() is usable or not, and adjust the behavior of the
assert_cc() macro accordingly.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 40e54cf..a192c81 100644 --- a/configure.ac +++ b/configure.ac @@ -52,6 +52,12 @@ AC_CHECK_MEMBERS([struct stat.st_mtim], [], [], [#include <sys/stat.h>]) # Check kernel headers AC_CHECK_HEADERS_ONCE([linux/module.h]) +AC_MSG_CHECKING([whether _Static_assert() is supported]) +AC_COMPILE_IFELSE( + [AC_LANG_SOURCE([[_Static_assert(1, "Test");]])], + [AC_DEFINE([HAVE_STATIC_ASSERT], [1], [Define if _Static_assert() is available]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) ##################################################################### # --with- |