kbuild: enable use of AFLAGS and CFLAGS on commandline

The previous patches was preparation. With this patch we can now say: make CFLAGS=-Os vmlinux And the option specified will be appended to the options passed to gcc for C files. For assembler use: make AFLAGS=-foo vmlinux for the same functionality. Signed-off-by: Sam Ravnborg <[email protected]>
josf · Oct 15, 2007 · 52bcc33 · 52bcc33
1 parent 222d394
commit 52bcc33
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Makefile b/Makefile
@@ -523,6 +523,10 @@ KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
 # disable pointer signed / unsigned warnings in gcc 4.0
 KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)
 
+# Add user supplied AFLAGS and CFLAGS as the last assignments
+KBUILD_AFLAGS += $(AFLAGS)
+KBUILD_CFLAGS += $(CFLAGS)
+
 # Use --build-id when available.
 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
 			      $(call ld-option, -Wl$(comma)--build-id,))