diff options
Diffstat (limited to 'ac/gnupg-check-typedef.m4')
| -rw-r--r-- | ac/gnupg-check-typedef.m4 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/ac/gnupg-check-typedef.m4 b/ac/gnupg-check-typedef.m4 new file mode 100644 index 00000000..4f782a6a --- /dev/null +++ b/ac/gnupg-check-typedef.m4 @@ -0,0 +1,16 @@ +dnl GNUPG_CHECK_TYPEDEF(TYPE, HAVE_NAME [, COMMENT]) +dnl Check whether a typedef exists and create a #define $2 if it exists +dnl +AC_DEFUN(GNUPG_CHECK_TYPEDEF, + [ AC_MSG_CHECKING(for $1 typedef) + AC_CACHE_VAL(gnupg_cv_typedef_$1, + [AC_TRY_COMPILE([#include <stdlib.h> + #include <sys/types.h>], [ + #undef $1 + int a = sizeof($1); + ], gnupg_cv_typedef_$1=yes, gnupg_cv_typedef_$1=no )]) + AC_MSG_RESULT($gnupg_cv_typedef_$1) + if test "$gnupg_cv_typedef_$1" = yes; then + AC_DEFINE($2, 1, $3) + fi + ]) |