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| author | Eric Andersen <andersen@codepoet.org> | 2003-10-30 07:48:38 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2003-10-30 07:48:38 +0000 |
| commit | b8b6816f7b0aa20e1e08e0881f4a428ccd76850e (patch) | |
| tree | abb0ffca9413e2014fb4d3289388d946840e8e7b | |
| parent | f4fd3a13318f15d212d5519516db50f572f08ada (diff) | |
| download | busybox-b8b6816f7b0aa20e1e08e0881f4a428ccd76850e.tar.gz | |
make certain values specified in the environment always win
| -rw-r--r-- | Rules.mak | 24 |
1 files changed, 11 insertions, 13 deletions
@@ -34,23 +34,23 @@ BUILDTIME := $(shell TZ=UTC date -u "+%Y.%m.%d-%H:%M%z") # to something more interesting... Target architecture is determined # by asking the CC compiler what arch it compiles things for, so unless # your compiler is broken, you should not need to specify TARGET_ARCH -CROSS =$(subst ",, $(strip $(CROSS_COMPILER_PREFIX))) +CROSS ?=$(subst ",, $(strip $(CROSS_COMPILER_PREFIX))) #CROSS =/usr/i386-linux-uclibc/bin/i386-uclibc- -CC = $(CROSS)gcc -AR = $(CROSS)ar -AS = $(CROSS)as -LD = $(CROSS)ld -NM = $(CROSS)nm -STRIP = $(CROSS)strip -CPP = $(CC) -E +CC ?= $(CROSS)gcc +AR ?= $(CROSS)ar +AS ?= $(CROSS)as +LD ?= $(CROSS)ld +NM ?= $(CROSS)nm +STRIP ?= $(CROSS)strip +CPP ?= $(CC) -E MAKEFILES = $(TOPDIR).config # What OS are you compiling busybox for? This allows you to include # OS specific things, syscall overrides, etc. -TARGET_OS=linux +TARGET_OS?=linux # Select the compiler needed to build binaries for your development system -HOSTCC = gcc +HOSTCC ?= gcc HOSTCFLAGS= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer # Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc. @@ -86,8 +86,7 @@ ARFLAGS=-r #-------------------------------------------------------- export VERSION BUILDTIME TOPDIR HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP -ifeq ($(strip $(TARGET_ARCH)),) -TARGET_ARCH=$(shell $(CC) -dumpmachine | sed -e s'/-.*//' \ +TARGET_ARCH?=$(shell $(CC) -dumpmachine | sed -e s'/-.*//' \ -e 's/i.86/i386/' \ -e 's/sparc.*/sparc/' \ -e 's/arm.*/arm/g' \ @@ -99,7 +98,6 @@ TARGET_ARCH=$(shell $(CC) -dumpmachine | sed -e s'/-.*//' \ -e 's/mipsel-.*/mipsel/' \ -e 's/cris.*/cris/' \ ) -endif # Pull in the user's busybox configuration ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),) |