diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 35e2e8d1..0ba2ff44 100644 --- a/configure.ac +++ b/configure.ac @@ -265,6 +265,18 @@ __attribute__((__unused__)) static void foo(void){return;}]], [compiler does not accept __attribute__ on return types]) ] ) +AC_MSG_CHECKING([if compiler allows __attribute__ prototype args]) +AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ +#include <stdlib.h> +typedef void foo(const char *, ...) __attribute__((format(printf, 1, 2)));]], + [[ exit(0); ]])], + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + AC_DEFINE(NO_ATTRIBUTE_ON_PROTOTYPE_ARGS, 1, + [compiler does not accept __attribute__ on protoype args]) ] +) + if test "x$no_attrib_nonnull" != "x1" ; then AC_DEFINE([HAVE_ATTRIBUTE__NONNULL__], [1], [Have attribute nonnull]) fi |