kmod/kmod-configure-c99.patch

38 lines
1.2 KiB
Diff

configure.ac: In _Noreturn check, include <stdlib.h> for exit
Otherwise, an implicit functiona declaration is used, causing
a C99 compatibility issue.
Submitted upstream:
<https://lore.kernel.org/linux-modules/877cyq6kh9.fsf@oldenburg.str.redhat.com/>
diff --git a/configure b/configure
index d053310a8b4a313a..ec1f12d02428f848 100755
--- a/configure
+++ b/configure
@@ -14021,7 +14021,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
printf %s "checking whether _Noreturn is supported... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-_Noreturn int foo(void) { exit(0); }
+#include <stdlib.h>
+ _Noreturn int foo(void) { exit(0); }
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
diff --git a/configure.ac b/configure.ac
index 6989e9360da23721..12e0518533201ccf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -68,7 +68,8 @@ AC_COMPILE_IFELSE(
AC_MSG_CHECKING([whether _Noreturn is supported])
AC_COMPILE_IFELSE(
- [AC_LANG_SOURCE([[_Noreturn int foo(void) { exit(0); }]])],
+ [AC_LANG_SOURCE([[#include <stdlib.h>
+ _Noreturn int foo(void) { exit(0); }]])],
[AC_DEFINE([HAVE_NORETURN], [1], [Define if _Noreturn is available])
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])