kbuild: use pattern rule for building built-in.a in sub-directories
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Message ID 20191218160514.28124-1-masahiroy@kernel.org
State New
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  • kbuild: use pattern rule for building built-in.a in sub-directories
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Commit Message

Masahiro Yamada Dec. 18, 2019, 4:05 p.m. UTC
The built-in.a in a sub-directory is created by descending into that
directory. It does not depend on the other sub-directories. Loosen
the dependency.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

 scripts/Makefile.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index e46b4ee9a120..a562d695f0fa 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -372,7 +372,7 @@  $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
 # ---------------------------------------------------------------------------
 
 # To build objects in subdirs, we need to descend into the directories
-$(sort $(subdir-obj-y)): $(subdir-ym) ;
+$(obj)/%/built-in.a: $(obj)/% ;
 
 #
 # Rule to compile a set of .o files into one .a file (without symbol table)