From 4454361e54b749bdc0b524092aea2366b5d5ed98 Mon Sep 17 00:00:00 2001 From: Robert Marko Date: Fri, 31 May 2024 15:47:15 +0200 Subject: [PATCH] tools/elfutils: pass -O2 in HOST_CXXFLAGS Trying to compile elfutils on Fedora 40 with GCC 14.1.1 will fail with: /home/robimarko/Building/AX3600/qualcommax/staging_dir/host/bin/g++ -std=c++11 -D_GNU_SOURCE -DHAVE_CONFIG_H -DLOCALEDIR='"/home/robimarko/Building/AX3600/qualcommax/staging_dir/host/share/locale"' -DDEBUGPRED=0 -DSRCDIR=\"/home/robimarko/Building/AX3600/qualcommax/build_dir/host/elfutils-0.191/src\" -DOBJDIR=\"/home/robimarko/Building/AX3600/qualcommax/build_dir/host/elfutils-0.191/src\" -I. -I.. -I../libgnu -I../libgnu -I. -I. -I../lib -I.. -I./../libelf -I./../libebl -I./../libdw -I./../libdwelf -I./../libdwfl -I./../libasm -I../debuginfod -I/home/robimarko/Building/AX3600/qualcommax/staging_dir/host/include -std=c++11 -Wall -Wshadow -Wtrampolines -Wlogical-op -Wduplicated-cond -Wnull-dereference -Wimplicit-fallthrough=5 -Werror -Wunused -Wextra -Wstack-usage=262144 -D_FORTIFY_SOURCE=3 -c -o srcfiles.o srcfiles.cxx In file included from /usr/include/c++/14/x86_64-redhat-linux/bits/os_defines.h:39, from /usr/include/c++/14/x86_64-redhat-linux/bits/c++config.h:2521, from /usr/include/c++/14/cstdlib:41, from ../libgnu/gettext.h:56, from ../libgnu/eu-config.h:62, from ../config.h:2378, from srcfiles.cxx:31: /usr/include/features.h:414:4: error: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Werror=cpp] 414 | # warning _FORTIFY_SOURCE requires compiling with optimization (-O) | ^~~~~~~ cc1plus: all warnings being treated as errors So, lets do as the error says and pass -O2 in HOST_CXXFLAGS like we already do by default in HOST_CFLAGS. Link: https://github.com/openwrt/openwrt/pull/15368 Signed-off-by: Robert Marko --- tools/elfutils/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/elfutils/Makefile b/tools/elfutils/Makefile index 39e7f80b4a..0fbf1aedad 100644 --- a/tools/elfutils/Makefile +++ b/tools/elfutils/Makefile @@ -68,6 +68,7 @@ ifeq ($(HOST_OS),Darwin) endif HOST_CFLAGS += -Wno-error -fPIC +HOST_CXXFLAGS += -O2 HOST_CONFIGURE_ARGS += \ --without-libintl-prefix \ -- 2.30.2