From 75f7c47ccd78c947cf1b6ddb18ea453ff0555716 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Thomas=20Wei=C3=9Fschuh?= Date: Wed, 22 Apr 2026 17:10:27 +0200 Subject: [PATCH] kbuild: Never respect CONFIG_WERROR / W=e to fixdep MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The fixdep hostprog may be built multiple times during a single build. Once during the configuration phase and later during the regular phase. As only the regular build phase respects CONFIG_WERROR / W=e, the compiler flags might change between the phases, leading to rebuilds. Example, the rebuilds will happen twice on each invocation of the build: $ make allyesconfig prepare make[1]: Entering directory '/tmp/deleteme' HOSTCC scripts/basic/fixdep # # No change to .config # HOSTCC scripts/basic/fixdep DESCEND objtool INSTALL libsubcmd_headers make[1]: Leaving directory '/tmp/deleteme' Fix the compilation flags used for scripts/basic/ before scripts/Makefile.warn is evaluated to stop CONFIG_WERROR / W=e influencing the fixdep build to avoid the spurious rebuilds. Fixes: 7ded7d37e5f5 ("scripts/Makefile.extrawarn: Respect CONFIG_WERROR / W=e for hostprogs") Signed-off-by: Thomas Weißschuh Reviewed-by: Nathan Chancellor Link: https://patch.msgid.link/20260422-kbuild-scripts-basic-werror-v1-1-8c6912ff22e0@weissschuh.net Signed-off-by: Nicolas Schier --- Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Makefile b/Makefile index 36d0a32fbe49b..c4f76e4d77d03 100644 --- a/Makefile +++ b/Makefile @@ -655,6 +655,8 @@ export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ # Basic helpers built in scripts/basic/ PHONY += scripts_basic +scripts_basic: KBUILD_HOSTCFLAGS := $(KBUILD_HOSTCFLAGS) +scripts_basic: KBUILD_HOSTLDFLAGS := $(KBUILD_HOSTLDFLAGS) scripts_basic: $(Q)$(MAKE) $(build)=scripts/basic -- 2.47.3