build: increase file descriptor count limit for the build, some systems (e.g. Mac...

[openwrt/openwrt.git] / include / toplevel.mk

diff --git a/include/toplevel.mk b/include/toplevel.mk
index dee43cba985c1eb14ce152eeafd255116218a3e9..19ed8cb1d9daa55c90e544c01543753ee5d25e13 100644 (file)
--- a/include/toplevel.mk
+++ b/include/toplevel.mk
@@ -1,12 +1,12 @@
 # Makefile for OpenWrt
 #
-# Copyright (C) 2007 OpenWrt.org
+# Copyright (C) 2007-2012 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
 #
 
-RELEASE:=Kamikaze
+RELEASE:=Barrier Breaker
 PREP_MK= OPENWRT_BUILD= QUIET=0
 
 include $(TOPDIR)/include/verbose.mk
@@ -17,13 +17,16 @@ else
   REVISION:=$(shell $(TOPDIR)/scripts/getver.sh)
 endif
 
+HOSTCC ?= gcc
 OPENWRTVERSION:=$(RELEASE)$(if $(REVISION), ($(REVISION)))
 export RELEASE
 export REVISION
 export OPENWRTVERSION
 export IS_TTY=$(shell tty -s && echo 1 || echo 0)
-export LD_LIBRARY_PATH:=$(if $(LD_LIBRARY_PATH),$(LD_LIBRARY_PATH):)$(STAGING_DIR_HOST)/lib
-export DYLD_LIBRARY_PATH:=$(if $(DYLD_LIBRARY_PATH),$(DYLD_LIBRARY_PATH):)$(STAGING_DIR_HOST)/lib
+export LD_LIBRARY_PATH:=$(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
@@ -31,6 +34,11 @@ 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=
 
@@ -41,6 +49,10 @@ 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
@@ -61,12 +73,12 @@ prepare-tmpinfo: FORCE
        fi
 
 scripts/config/mconf:
-       @$(_SINGLE)$(SUBMAKE) -s -C scripts/config all
+       @$(_SINGLE)$(SUBMAKE) -s -C scripts/config all CC="$(HOSTCC)"
 
 $(eval $(call rdep,scripts/config,scripts/config/mconf))
 
 scripts/config/conf:
-       @$(_SINGLE)$(SUBMAKE) -s -C scripts/config conf
+       @$(_SINGLE)$(SUBMAKE) -s -C scripts/config conf CC="$(HOSTCC)"
 
 config: scripts/config/conf prepare-tmpinfo FORCE
        $< Config.in
@@ -89,9 +101,9 @@ menuconfig: scripts/config/mconf prepare-tmpinfo FORCE
 
 prepare_kernel_conf: .config FORCE
 
-ifeq ($(wildcard staging_dir/host/bin/sed),)
+ifeq ($(wildcard staging_dir/host/bin/quilt),)
   prepare_kernel_conf:
-       @+$(SUBMAKE) -r tools/sed/install
+       @+$(SUBMAKE) -r tools/quilt/install
 else
   prepare_kernel_conf: ;
 endif
@@ -132,7 +144,14 @@ prereq:: prepare-tmpinfo .config
 
 %::
        @+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
-       @+$(SUBMAKE) -r $@
+       @( \
+               cp .config tmp/.config; \
+               ./scripts/config/conf -D tmp/.config -w tmp/.config Config.in > /dev/null 2>&1; \
+               if ./scripts/kconfig.pl '>' .config tmp/.config | grep -q CONFIG; then \
+                       echo "WARNING: your configuration is out of sync. Please run make menuconfig, oldconfig or defconfig!"; \
+               fi \
+       )
+       @+$(ULIMIT_FIX) $(SUBMAKE) -r $@
 
 help:
        cat README