path: root/Makefile
diff options
authorMasahiro Yamada <>2021-03-14 15:15:50 +0900
committerMasahiro Yamada <>2021-04-25 05:14:01 +0900
commit6e0839fda3f8598b164a7f23f3eec039e2db5fbc (patch)
tree6a1feaeeddf691f200eaaf8058dfc94087156b1d /Makefile
parent879a3209009fbbeb013a1d81952abcbe13918a13 (diff)
kbuild: replace sed with $(subst ) or $(patsubst )
For simple text replacement, it is better to use a built-in function instead of sed if possible. You can save one process forking. I do not mean to replace all sed invocations because GNU Make itself does not support regular expression (unless you use guile). I just replaced simple ones. Signed-off-by: Masahiro Yamada <>
Diffstat (limited to 'Makefile')
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 5cb44595418c..cc5b7e39fde4 100644
--- a/Makefile
+++ b/Makefile
@@ -574,7 +574,7 @@ endif
# Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile.
# CC_VERSION_TEXT is referenced from Kconfig (so it needs export),
# and from include/config/auto.conf.cmd to detect the compiler upgrade.
-CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1 | sed 's/\#//g')
+CC_VERSION_TEXT = $(subst $(pound),,$(shell $(CC) --version 2>/dev/null | head -n 1))
ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)
ifneq ($(CROSS_COMPILE),)