Add a help target in case people want to read the README ;)

[openwrt/openwrt.git] / Makefile

diff --git a/Makefile b/Makefile
index e5e1f6fd3110cd1c7eddde05af84b6da2b9be223..2dcb72763613604b738241fd817e1e558f0ac9be 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -20,7 +20,7 @@ all: world
 SHELL:=/usr/bin/env bash
 export LC_ALL=C
 export LANG=C
-export TOPDIR=${shell pwd}
+export TOPDIR=${CURDIR}
 ifeq ($(KBUILD_VERBOSE),99)
   MAKE:=3>/dev/null $(MAKE)
 endif
@@ -39,17 +39,17 @@ else
 endif
 export OPENWRTVERSION
 
-ifneq ($(shell ./scripts/timestamp.pl -p tmp/.pkginfo package scripts Makefile),tmp/.pkginfo)
+ifneq ($(shell ./scripts/timestamp.pl -p tmp/.pkginfo package scripts include),tmp/.pkginfo)
   tmp/.pkginfo: FORCE
 endif
 
-ifneq ($(shell ./scripts/timestamp.pl -p tmp/.targetinfo target/linux scripts Makefile),tmp/.targetinfo)
+ifneq ($(shell ./scripts/timestamp.pl -p tmp/.targetinfo target/linux scripts include),tmp/.targetinfo)
   tmp/.targetinfo: FORCE
 endif
 
 ifeq ($(FORCE),)
   .config scripts/config/conf scripts/config/mconf: tmp/.prereq-build
-  world: tmp/.prereq-packages
+  world: tmp/.prereq-packages tmp/.prereq-target
 endif
 
 tmp/.pkginfo:
@@ -120,6 +120,7 @@ toolchain/%: tmp/.targetinfo FORCE
 
 tmp/.prereq-build: include/prereq-build.mk
        @mkdir -p tmp
+       @rm -f tmp/.host.mk
        @$(NO_TRACE_MAKE) -s -f $(TOPDIR)/include/prereq-build.mk prereq 2>/dev/null || { \
                echo "Prerequisite check failed. Use FORCE=1 to override."; \
                false; \
@@ -128,13 +129,23 @@ tmp/.prereq-build: include/prereq-build.mk
 
 tmp/.prereq-packages: include/prereq.mk tmp/.pkginfo .config
        @mkdir -p tmp
+       @rm -f tmp/.host.mk
        @$(NO_TRACE_MAKE) -s -C package prereq 2>/dev/null || { \
                echo "Prerequisite check failed. Use FORCE=1 to override."; \
                false; \
        }
        @touch $@
-       
-prereq: tmp/.prereq-build tmp/.prereq-packages FORCE
+
+tmp/.prereq-target: include/prereq.mk tmp/.targetinfo .config
+       @mkdir -p tmp
+       @rm -f tmp/.host.mk
+       @$(NO_TRACE_MAKE) -s -C target prereq 2>/dev/null || { \
+               echo "Prerequisite check failed. Use FORCE=1 to override."; \
+               false; \
+       }
+       @touch $@
+
+prereq: tmp/.prereq-build tmp/.prereq-packages tmp/.prereq-target FORCE
 
 download: .config FORCE
        $(MAKE) tools/download
@@ -160,7 +171,10 @@ dirclean: clean
 distclean: dirclean config-clean
        rm -rf dl
 
+help:
+       cat README
+
 .SILENT: clean dirclean distclean config-clean download world
 FORCE: ;
-.PHONY: FORCE
+.PHONY: FORCE help
 %: ;