build system: introduce a new feature called build variants.

[openwrt.git] / include / toplevel.mk

diff --git a/include/toplevel.mk b/include/toplevel.mk
index eaaf6d3..d8b16d1 100644 (file)
--- a/include/toplevel.mk
+++ b/include/toplevel.mk
@@ -26,6 +26,9 @@ 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
 
+# prevent perforce from messing with the patch utility
+unexport P4PORT P4USER P4CONFIG P4CLIENT
+
 # make sure that a predefined CFLAGS variable does not disturb packages
 export CFLAGS=
 
@@ -40,8 +43,8 @@ prepare-mk: FORCE ;
 
 prepare-tmpinfo: FORCE
        mkdir -p tmp/info
-       $(_SINGLE)$(NO_TRACE_MAKE) -j1 -s -f include/scan.mk SCAN_TARGET="packageinfo" SCAN_DIR="package" SCAN_NAME="package" SCAN_DEPS="$(TOPDIR)/include/package*.mk" SCAN_DEPTH=5 SCAN_EXTRA=""
-       $(_SINGLE)$(NO_TRACE_MAKE) -j1 -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"
+       $(_SINGLE)$(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; }; \
@@ -49,7 +52,7 @@ prepare-tmpinfo: FORCE
        ./scripts/metadata.pl package_mk tmp/.packageinfo > tmp/.packagedeps || { rm -f tmp/.packagedeps; false; }
        touch $(TOPDIR)/tmp/.build
 
-.config: ./scripts/config/conf prepare-tmpinfo $(if $(CONFIG_HAVE_DOT_CONFIG),,FORCE)
+.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); \
@@ -82,16 +85,25 @@ menuconfig: scripts/config/mconf prepare-tmpinfo FORCE
        fi
        $< Config.in
 
-kernel_oldconfig: .config FORCE
+prepare_kernel_conf: .config FORCE
+
+ifeq ($(wildcard staging_dir/host/bin/sed),)
+  prepare_kernel_conf:
+       @+$(SUBMAKE) -r tools/sed/install
+else
+  prepare_kernel_conf: ;
+endif
+
+kernel_oldconfig: prepare_kernel_conf
        $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux oldconfig
 
-kernel_menuconfig: .config FORCE
+kernel_menuconfig: prepare_kernel_conf
        $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux menuconfig
 
 tmp/.prereq-build: include/prereq-build.mk
        mkdir -p tmp
        rm -f tmp/.host.mk
-       @$(_SINGLE)$(NO_TRACE_MAKE) -j1 -s -f $(TOPDIR)/include/prereq-build.mk prereq 2>/dev/null || { \
+       @$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f $(TOPDIR)/include/prereq-build.mk prereq 2>/dev/null || { \
                echo "Prerequisite check failed. Use FORCE=1 to override."; \
                false; \
        }
@@ -104,14 +116,14 @@ download: .config FORCE
        @+$(SUBMAKE) target/download
 
 clean dirclean: .config
-       @+$(SUBMAKE) $@ 
+       @+$(SUBMAKE) -r $@ 
 
-prereq:: .config
-       @+$(MAKE) -s tmp/.prereq-build $(PREP_MK)
-       @+$(NO_TRACE_MAKE) -s $@
+prereq:: prepare-tmpinfo .config
+       @+$(MAKE) -r -s tmp/.prereq-build $(PREP_MK)
+       @+$(NO_TRACE_MAKE) -r -s $@
 
 %::
-       @+$(PREP_MK) $(NO_TRACE_MAKE) -s prereq
+       @+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
        @+$(SUBMAKE) -r $@
 
 help: