diff options
| author | Brian Behlendorf <[email protected]> | 2011-09-19 13:35:03 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2011-09-19 13:45:08 -0700 |
| commit | 97fd6a07c2c2fd1d27fc79938eb1a451c92fbfc4 (patch) | |
| tree | 8d8afb547e2cd16384849a56579092db802769fb /config/spl-build.m4 | |
| parent | c064bdee95583102e216354bbdece4818d59b644 (diff) | |
Fix HAVE_FS_STRUCT_SPINLOCK check for gcc-4.1.2
Older versions of gcc (gcc-4.1.2) will treat an 'incompatible
pointer type' as a warning instead of an error. This results
in HAVE_FS_STRUCT_SPINLOCK being defined incorrectly. This
failure mode was observed when using a RHEL6 2.6.32 based kernel
under RHEL5.5 which contains the old version of gcc. To resolve
the issue the warning is explicitly promoted to an error.
Signed-off-by: Brian Behlendorf <[email protected]>
Diffstat (limited to 'config/spl-build.m4')
| -rw-r--r-- | config/spl-build.m4 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/config/spl-build.m4 b/config/spl-build.m4 index f4652bce1..c046db830 100644 --- a/config/spl-build.m4 +++ b/config/spl-build.m4 @@ -1598,6 +1598,8 @@ dnl # a spinlock_t to improve the fastpath performance. dnl # AC_DEFUN([SPL_AC_FS_STRUCT_SPINLOCK], [ AC_MSG_CHECKING([whether struct fs_struct uses spinlock_t]) + tmp_flags="$EXTRA_KCFLAGS" + EXTRA_KCFLAGS="-Werror" SPL_LINUX_TRY_COMPILE([ #include <linux/sched.h> #include <linux/fs_struct.h> @@ -1611,6 +1613,7 @@ AC_DEFUN([SPL_AC_FS_STRUCT_SPINLOCK], [ ],[ AC_MSG_RESULT(no) ]) + EXTRA_KCFLAGS="$tmp_flags" ]) dnl # |