tools: elfutils: set -std=gnu17

Fedora 42 updated to GCC15 which now defaults to GNU23 as the default
instead of GNU17[1], and this breaks m4 compilation.

This looks like a gnulib issue, so until that is updated/fixed
lets simply set C language version back to GNU17.

[1] https://gcc.gnu.org/gcc-15/porting_to.html#c23

Link: https://github.com/openwrt/openwrt/pull/18506
(cherry picked from commit f165dd2f78f7aaafa85f59f5c35264dd03e3a6ce)
Link: https://github.com/openwrt/openwrt/pull/18581
Signed-off-by: Robert Marko <[email protected]>

diff --git a/tools/elfutils/Makefile b/tools/elfutils/Makefile
index 2836cadc87d60b66fea2946b4ed2d8490a619522..ae829cd3400bd398a45c8fda5c75680c88d443aa 100644 (file)
--- a/tools/elfutils/Makefile
+++ b/tools/elfutils/Makefile
@@ -69,7 +69,7 @@ ifeq ($(HOST_OS),Darwin)
   HOST_CFLAGS += -I/opt/homebrew/include
 endif
 
-HOST_CFLAGS += -Wno-error -fPIC
+HOST_CFLAGS += -Wno-error -fPIC -std=gnu17
 
 HOST_CONFIGURE_ARGS += \
        --without-libintl-prefix \