From: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Date: Tue, 23 Dec 2025 07:04:11 +0000 (+0100)
Subject: kbuild: uapi: split out command conditions into variables
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ac85d9bc73ed38a3bf98a58f9a44087375332b4;p=thirdparty%2Fkernel%2Flinux.git

kbuild: uapi: split out command conditions into variables

The condition logic will become a bit more complicated.

Split them out into dedicated variables so they stay readable.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20251223-uapi-nostdinc-v1-4-d91545d794f7@linutronix.de
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---

diff --git a/usr/include/Makefile b/usr/include/Makefile
index fd29c11c35cbd..fa01bcda21f52 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -150,12 +150,15 @@ endif
 
 always-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/dev/null))
 
+target-no-libc = $(filter-out $(uses-libc), $*.h)
+target-can-compile = $(filter-out $(no-header-test), $*.h)
+
 # 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 \
-			$(if $(filter-out $(uses-libc), $*.h), -nostdinc) \
-			$(if $(filter-out $(no-header-test), $*.h), -include $< -include $<); \
+			$(if $(target-no-libc), -nostdinc) \
+			$(if $(target-can-compile), -include $< -include $<); \
 		$(PERL) $(src)/headers_check.pl $(obj) $<; \
 		touch $@