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| author | Jean Guyomarc'h <jean.guyomarch@openwide.fr> | 2016-08-23 11:31:52 +0200 |
|---|---|---|
| committer | Jean Guyomarc'h <jean.guyomarch@gmail.com> | 2016-08-23 20:28:44 +0200 |
| commit | 6de774455bb43e153815dfc27645dd292995b309 (patch) | |
| tree | 86263bb2b5a852fd61e8ebd7917b2301eb3a9d80 /m4 | |
| parent | a0e8a9aeaa63ff02fd32d6bd4771c97600103d50 (diff) | |
| download | efl-6de774455bb43e153815dfc27645dd292995b309.tar.gz | |
autotools: add macro to easily check for defines in headers
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/efl_define.m4 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/m4/efl_define.m4 b/m4/efl_define.m4 new file mode 100644 index 0000000000..2b73a691e8 --- /dev/null +++ b/m4/efl_define.m4 @@ -0,0 +1,20 @@ +dnl +dnl EFL_CHECK_DEFINE(symbol, header_file) +dnl +dnl NOTE: EFL_CHECK_DEFINE is strongly inspired by +dnl APR_CHECK_DEFINE which can be found in the +dnl sources of Apache's APR (under Apache Licence) +dnl +AC_DEFUN([EFL_CHECK_DEFINE], [ + AC_CACHE_CHECK([for $1 in $2],ac_cv_define_$1,[ + AC_EGREP_CPP(YES_IS_DEFINED, [ +#include <$2> +#ifdef $1 +YES_IS_DEFINED +#endif + ], ac_cv_define_$1=yes, ac_cv_define_$1=no) + ]) + if test "$ac_cv_define_$1" = "yes"; then + AC_DEFINE(HAVE_$1, 1, [Define if $1 is defined in $2]) + fi +]) |