From: Thomas Weißschuh Date: Mon, 16 Mar 2026 16:51:58 +0000 (+0100) Subject: kbuild: uapi: move some compiler arguments out of the command definition X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=55d68ec5b9ba004764acaa3291871513102b4fd4;p=thirdparty%2Flinux.git kbuild: uapi: move some compiler arguments out of the command definition Simplify the definition of cmd_hdrtest by moving some of it to a new variable. This will both enable the upcoming reuse of those flags and also the extension of cmd_hdrtest. Signed-off-by: Thomas Weißschuh Reviewed-by: Nathan Chancellor Link: https://patch.msgid.link/20260316-kbuild-uapi-c-v2-1-35d6d0ed863f@weissschuh.net Signed-off-by: Nicolas Schier --- diff --git a/usr/include/Makefile b/usr/include/Makefile index 845d06b63c2b3..0b1c9a4b04773 100644 --- a/usr/include/Makefile +++ b/usr/include/Makefile @@ -140,11 +140,13 @@ always-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/ target-libc = $(filter $(uses-libc), $*.h) target-can-compile = $(filter-out $(no-header-test), $*.h) +hdrtest-flags = -fsyntax-only -Werror \ + -nostdinc $(if $(target-libc), -I $(srctree)/usr/dummy-include) + # Include the header twice to detect missing include guard. quiet_cmd_hdrtest = HDRTEST $< cmd_hdrtest = \ - $(CC) $(c_flags) -fsyntax-only -Werror -x c /dev/null \ - -nostdinc $(if $(target-libc), -I $(srctree)/usr/dummy-include) \ + $(CC) $(c_flags) $(hdrtest-flags) -x c /dev/null \ $(if $(target-can-compile), -include $< -include $<); \ $(PERL) $(src)/headers_check.pl $(obj) $<; \ touch $@