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# Makefile for OpenWrt
#
# Copyright (C) 2007-2012 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

RELEASE:=Barrier Breaker
PREP_MK= OPENWRT_BUILD= QUIET=0

export IS_TTY=$(shell tty -s && echo 1 || echo 0)

include $(TOPDIR)/include/verbose.mk

ifeq ($(SDK),1)
  include $(TOPDIR)/include/version.mk
else
  REVISION:=$(shell $(TOPDIR)/scripts/getver.sh)
endif

HOSTCC ?= gcc
OPENWRTVERSION:=$(RELEASE)$(if $(REVISION), ($(REVISION)))
export RELEASE
export REVISION
export OPENWRTVERSION
export LD_LIBRARY_PATH:=$(subst ::,:,$(if $(LD_LIBRARY_PATH),$(LD_LIBRARY_PATH):)$(STAGING_DIR_HOST)/lib)
export DYLD_LIBRARY_PATH:=$(subst ::,:,$(if $(DYLD_LIBRARY_PATH),$(DYLD_LIBRARY_PATH):)$(STAGING_DIR_HOST)/lib)
export GIT_CONFIG_PARAMETERS='core.autocrlf=false'
export MAKE_JOBSERVER=$(filter --jobserver%,$(MAKEFLAGS))

# prevent perforce from messing with the patch utility
unexport P4PORT P4USER P4CONFIG P4CLIENT

# prevent user defaults for quilt from interfering
unexport QUILT_PATCHES QUILT_PATCH_OPTS

unexport C_INCLUDE_PATH CROSS_COMPILE ARCH

# prevent distro default LPATH from interfering
unexport LPATH

# make sure that a predefined CFLAGS variable does not disturb packages
export CFLAGS=

ifneq ($(shell $(HOSTCC) 2>&1 | grep clang),)
  export HOSTCC_REAL?=$(HOSTCC)
  export HOSTCC_WRAPPER:=$(TOPDIR)/scripts/clang-gcc-wrapper
else
  export HOSTCC_WRAPPER:=$(HOSTCC)
endif

ifeq ($(FORCE),)
  .config scripts/config/conf scripts/config/mconf: tmp/.prereq-build
endif

SCAN_COOKIE?=$(shell echo $$$$)
export SCAN_COOKIE

SUBMAKE:=umask 022; $(SUBMAKE)

ULIMIT_FIX=_limit=`ulimit -n`; [ "$$_limit" = "unlimited" -o "$$_limit" -ge 1024 ] || ulimit -n 1024;

prepare-mk: FORCE ;

prepare-tmpinfo: FORCE
	mkdir -p tmp/info
	$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f include/scan.mk SCAN_TARGET="packageinfo" SCAN_DIR="package" SCAN_NAME="package" SCAN_DEPS="$(TOPDIR)/include/package*.mk $(TOPDIR)/overlay/*/*.mk" SCAN_DEPTH=5 SCAN_EXTRA=""
	$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f include/scan.mk SCAN_TARGET="targetinfo" SCAN_DIR="target/linux" SCAN_NAME="target" SCAN_DEPS="profiles/*.mk $(TOPDIR)/include/kernel*.mk $(TOPDIR)/include/target.mk" SCAN_DEPTH=2 SCAN_EXTRA="" SCAN_MAKEOPTS="TARGET_BUILD=1"
	for type in package target; do \
		f=tmp/.$${type}info; t=tmp/.config-$${type}.in; \
		[ "$$t" -nt "$$f" ] || ./scripts/metadata.pl $${type}_config "$$f" > "$$t" || { rm -f "$$t"; echo "Failed to build $$t"; false; break; }; \
	done
	./scripts/metadata.pl package_mk tmp/.packageinfo > tmp/.packagedeps || { rm -f tmp/.packagedeps; false; }
	touch $(TOPDIR)/tmp/.build

.config: ./scripts/config/conf $(if $(CONFIG_HAVE_DOT_CONFIG),,prepare-tmpinfo)
	@+if [ \! -e .config ] || ! grep CONFIG_HAVE_DOT_CONFIG .config >/dev/null; then \
		[ -e $(HOME)/.openwrt/defconfig ] && cp $(HOME)/.openwrt/defconfig .config; \
		$(_SINGLE)$(NO_TRACE_MAKE) menuconfig $(PREP_MK); \
	fi

scripts/config/mconf:
	@$(_SINGLE)$(SUBMAKE) -s -C scripts/config all CC="$(HOSTCC_WRAPPER)"