[BusyBox] bug#1086: Cannot build busybox-0.48

[Larry Doolittle]

Here is IMHO an appropriate level of improved CFLAGS support.
With this patch, Thomas would be able to say:

# make OPTIMIZATION=-O3 CFLAGS_EXTRA=-march=i686

    - Larry


--- /home/ldoolitt/cvs/busybox/Makefile	Thu Dec 21 08:50:34 2000
+++ Makefile	Thu Jan  4 10:57:03 2001
@@ -28,6 +28,11 @@
 # overridden at the command line.  For example:
 #   make CROSS=powerpc-linux- BB_SRC_DIR=$HOME/busybox PREFIX=/mnt/app
 
+# If you want to add some simple compiler switches (like -march=i686),
+# especially from the command line, use this instead of CFLAGS directly.
+# For optimization overrides, it's better still to set OPTIMIZATION.
+CFLAGS_EXTRA =
+ 
 # If you want a static binary, turn this on.
 DOSTATIC = false
 
@@ -145,6 +150,9 @@
     CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"'
 endif
 
+# Put user-supplied flags at the end, where they
+# have a chance of winning.
+CFLAGS += $(CFLAGS_EXTRA)
 
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