[git commit] kbuild: fix building sha256

[Bernhard Reutner-Fischer]

commit: https://git.busybox.net/busybox/commit/?id=831c754c91f798c53a133bc2cb84eaf38ed32352
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master

Pass down the correct EXTRA_CFLAGS to the compiler driver when building
assembler source.
Otherwise building busybox for a multilib other than the default failed
to link since hash_md5_sha256_x86-64_shaNI.o and
hash_md5_sha_x86-64_shaNI.o were built for the default arch which might
not what we requested in the EXTRA_CFLAGS.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop at gmail.com>
---
 Makefile             | 8 --------
 scripts/Makefile.lib | 1 +
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/Makefile b/Makefile
index b2ce46c7c..503475fe9 100644
--- a/Makefile
+++ b/Makefile
@@ -1301,14 +1301,6 @@ quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
       cmd_rmfiles = rm -f $(rm-files)
 
-
-a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_KERNEL) \
-	  $(NOSTDINC_FLAGS) $(CPPFLAGS) \
-	  $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o)
-
-quiet_cmd_as_o_S = AS      $@
-cmd_as_o_S       = $(CC) $(a_flags) -c -o $@ $<
-
 # read all saved command lines
 
 targets := $(wildcard $(sort $(targets)))
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index d8d768a28..ac1ac9735 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -113,6 +113,7 @@ c_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(CPPFLAGS) \
 		 $(basename_flags) $(modname_flags)
 
 a_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(CPPFLAGS) \
+		 $(__c_flags) \
 		 $(__a_flags) $(modkern_aflags)
 
 cpp_flags      = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(__cpp_flags)