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make certain values specified in the environment always win

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This commit is contained in:
Eric Andersen 2003-10-30 07:48:38 +00:00
parent f4fd3a1331
commit b8b6816f7b
1 changed files with 11 additions and 13 deletions
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24
Rules.mak
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@ -34,23 +34,23 @@ BUILDTIME := $(shell TZ=UTC date -u "+%Y.%m.%d-%H:%M%z")
# to something more interesting... Target architecture is determined # to something more interesting... Target architecture is determined
# by asking the CC compiler what arch it compiles things for, so unless # by asking the CC compiler what arch it compiles things for, so unless
# your compiler is broken, you should not need to specify TARGET_ARCH # your compiler is broken, you should not need to specify TARGET_ARCH
CROSS =$(subst ",, $(strip $(CROSS_COMPILER_PREFIX))) CROSS ?=$(subst ",, $(strip $(CROSS_COMPILER_PREFIX)))
#CROSS =/usr/i386-linux-uclibc/bin/i386-uclibc- #CROSS =/usr/i386-linux-uclibc/bin/i386-uclibc-
CC = $(CROSS)gcc CC ?= $(CROSS)gcc
AR = $(CROSS)ar AR ?= $(CROSS)ar
AS = $(CROSS)as AS ?= $(CROSS)as
LD = $(CROSS)ld LD ?= $(CROSS)ld
NM = $(CROSS)nm NM ?= $(CROSS)nm
STRIP = $(CROSS)strip STRIP ?= $(CROSS)strip
CPP = $(CC) -E CPP ?= $(CC) -E
MAKEFILES = $(TOPDIR).config MAKEFILES = $(TOPDIR).config
# What OS are you compiling busybox for? This allows you to include # What OS are you compiling busybox for? This allows you to include
# OS specific things, syscall overrides, etc. # OS specific things, syscall overrides, etc.
TARGET_OS=linux TARGET_OS?=linux
# Select the compiler needed to build binaries for your development system # Select the compiler needed to build binaries for your development system
HOSTCC = gcc HOSTCC ?= gcc
HOSTCFLAGS= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer HOSTCFLAGS= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
# Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc. # Ensure consistent sort order, 'gcc -print-search-dirs' behavior, etc.
@ -86,8 +86,7 @@ ARFLAGS=-r
#-------------------------------------------------------- #--------------------------------------------------------
export VERSION BUILDTIME TOPDIR HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP export VERSION BUILDTIME TOPDIR HOSTCC HOSTCFLAGS CROSS CC AR AS LD NM STRIP CPP
ifeq ($(strip $(TARGET_ARCH)),) TARGET_ARCH?=$(shell $(CC) -dumpmachine | sed -e s'/-.*//' \
TARGET_ARCH=$(shell $(CC) -dumpmachine | sed -e s'/-.*//' \
-e 's/i.86/i386/' \ -e 's/i.86/i386/' \
-e 's/sparc.*/sparc/' \ -e 's/sparc.*/sparc/' \
-e 's/arm.*/arm/g' \ -e 's/arm.*/arm/g' \
@ -99,7 +98,6 @@ TARGET_ARCH=$(shell $(CC) -dumpmachine | sed -e s'/-.*//' \
-e 's/mipsel-.*/mipsel/' \ -e 's/mipsel-.*/mipsel/' \
-e 's/cris.*/cris/' \ -e 's/cris.*/cris/' \
) )
endif
# Pull in the user's busybox configuration # Pull in the user's busybox configuration
ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),) ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)