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| author | Zdenek Kabelac <zkabelac@redhat.com> | 2018-12-03 18:14:26 +0100 |
|---|---|---|
| committer | Zdenek Kabelac <zkabelac@redhat.com> | 2018-12-14 15:09:13 +0100 |
| commit | 0b19387dae782b33bb341e58ab3c7ff804ca4f14 (patch) | |
| tree | a3914adc8ac8141e4380fbe6b20efc7307067030 /configure.ac | |
| parent | 3c377643339be97940554323909d51b12c933f9e (diff) | |
| download | lvm2-0b19387dae782b33bb341e58ab3c7ff804ca4f14.tar.gz | |
headers: use configure.h as 1st. header
Ensure configure.h is always 1st. included header.
Maybe we could eventually introduce gcc -include option, but for now
this better uses dependency tracking.
Also move _REENTRANT and _GNU_SOURCE into configure.h so it
doesn't need to be present in various source files.
This ensures consistent compilation of headers like stdio.h since
it may produce different declaration.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 2b2921078..2ece3f963 100644 --- a/configure.ac +++ b/configure.ac @@ -144,6 +144,11 @@ AC_TYPE_UINT64_T AX_GCC_BUILTIN([__builtin_clz]) AX_GCC_BUILTIN([__builtin_clzll]) + +AC_DEFINE([_GNU_SOURCE], 1, [Define to get access to GNU/Linux extension]) +AC_DEFINE([_REENTRANT], 1, [Define to use re-entrant thread safe versions]) + + ################################################################################ dnl -- Check for functions AC_CHECK_FUNCS([ftruncate gethostname getpagesize gettimeofday localtime_r \ |