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authorFlorian Weimer <fweimer@redhat.com>2023-01-12 17:49:40 +0100
committerFlorian Weimer <fweimer@redhat.com>2023-01-12 17:49:40 +0100
commit784dfc917e99429bdbb70fb9dd80c16dfeb73659 (patch)
tree50e929f9354a211a8db83cb5303852a9a9707c71 /CCache
parentb18b75369cd4b2795abad1283629b13a62630b58 (diff)
downloadswig-784dfc917e99429bdbb70fb9dd80c16dfeb73659.tar.gz
CCache: Do not rely on C89-only features in configure.ac
Add missing #include directives to obtain additional function prototypes. This avoids altering the result of this test with C99 compilers which do not support implicit function declarations.
Diffstat (limited to 'CCache')
-rw-r--r--CCache/configure.ac5
1 files changed, 4 insertions, 1 deletions
diff --git a/CCache/configure.ac b/CCache/configure.ac
index 2db3553ce..9afd49e83 100644
--- a/CCache/configure.ac
+++ b/CCache/configure.ac
@@ -63,6 +63,9 @@ AC_CACHE_CHECK([for C99 vsnprintf],ccache_cv_HAVE_C99_VSNPRINTF,[
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <sys/types.h>
#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
void foo(const char *format, ...) {
va_list ap;
int len;
@@ -77,7 +80,7 @@ void foo(const char *format, ...) {
exit(0);
}
-main() { foo("hello"); }
+int main(void) { foo("hello"); }
]])],[ccache_cv_HAVE_C99_VSNPRINTF=yes],[ccache_cv_HAVE_C99_VSNPRINTF=no],[ccache_cv_HAVE_C99_VSNPRINTF=cross])])
if test x"$ccache_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
AC_DEFINE(HAVE_C99_VSNPRINTF, 1, [ ])