dev-libs/gf2x: fix configure w/ clang 16

Fixed myself then realised upstream patch, you need to request an account for inria
*from a member* so not bothering with strict prototypes...

Closes: https://bugs.gentoo.org/879663
Signed-off-by: Sam James <sam@gentoo.org>

dev-libs/gf2x/files/gf2x-1.3.0-configure-clang16.patch

@@ -0,0 +1,28 @@
+https://bugs.gentoo.org/879663
+https://gitlab.inria.fr/gf2x/gf2x/-/commit/a2f0fd388c12ca0b9f4525c6cfbc515418dcbaf8
+
+From a2f0fd388c12ca0b9f4525c6cfbc515418dcbaf8 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emmanuel=20Thom=C3=A9?= <Emmanuel.Thome@inria.fr>
+Date: Thu, 17 Sep 2020 23:40:54 +0200
+Subject: [PATCH] fix #include in configure test
+
+See there: https://trac.sagemath.org/ticket/30494
+--- a/config/acinclude.m4
++++ b/config/acinclude.m4
+@@ -661,6 +661,7 @@ AC_DEFUN([GF2X_PROG_CC_FOR_BUILD_WORKS],
+ # remove anything that might look like compiler output to our "||" expression
+ rm -f conftest* a.out b.out a.exe a_out.exe
+ cat >conftest.c <<EOF
++#include <stdlib.h>
+ int
+ main ()
+ {
+@@ -699,6 +700,7 @@ AC_DEFUN([GF2X_PROG_EXEEXT_FOR_BUILD],
+ AC_CACHE_CHECK([for build system executable suffix],
+                gf2x_cv_prog_exeext_for_build,
+ [cat >conftest.c <<EOF
++#include <stdlib.h>
+ int
+ main ()
+ {
+GitLab

dev-libs/gf2x/gf2x-1.3.0-r1.ebuild

@@ -20,6 +20,7 @@ IUSE+=" ${IUSE_CPU_FLAGS// / cpu_flags_x86_}"
 PATCHES=(
 	"${FILESDIR}/fno-common.patch"
 	"${FILESDIR}/${P}-0001-src-tunefft.c-add-include-statement-for-MIN-and-MAX.patch"
+	"${FILESDIR}/${P}-configure-clang16.patch"
 )
 
 src_prepare() {