move the common variables from host-build.mk to host.mk
[openwrt.org/openwrt.git] / include / host.mk
blob:a/include/host.mk -> blob:b/include/host.mk
--- a/include/host.mk
+++ b/include/host.mk
@@ -1,25 +1,48 @@
 # 
-# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2007 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
 #
 
-include $(TOPDIR)/.host.mk
+TMP_DIR ?= $(TOPDIR)/tmp
+-include $(TMP_DIR)/.host.mk
 
-$(TOPDIR)/.host.mk: $(INCLUDE_DIR)/host.mk
-	echo "HOST_OS:=`uname`" > $@
-	echo "HOST_ARCH:=` \
-		$(HOSTCC) -dumpmachine | sed -e s'/-.*//' \
-			-e 's/sparc.*/sparc/' \
-			-e 's/arm.*/arm/' \
-			-e 's/m68k.*/m68k/' \
-			-e 's/ppc/powerpc/' \
-			-e 's/v850.*/v850/' \
-			-e 's/sh[234]/sh/' \
-			-e 's/mips-.*/mips/' \
-			-e 's/mipsel-.*/mipsel/' \
-			-e 's/cris.*/cris/' \
-			-e 's/i[3-9]86/i386/'`" >> $@
-	echo "GNU_HOST_NAME:=`$(HOSTCC) -dumpmachine`" >> $@
+export TAR
 
+ifneq ($(__host_inc),1)
+__host_inc:=1
+.PRECIOUS: $(TMP_DIR)/.host.mk
+$(TMP_DIR)/.host.mk: $(TOPDIR)/include/host.mk
+	@mkdir -p $(TMP_DIR)
+	@( \
+		HOST_OS=`uname`; \
+		case "$$HOST_OS" in \
+			Linux) HOST_ARCH=`uname -m`;; \
+			*) HOST_ARCH=`uname -p`;; \
+		esac; \
+		GNU_HOST_NAME=`gcc -dumpmachine`; \
+		[ -n "$$GNU_HOST_NAME" ] || \
+			GNU_HOST_NAME=`$(SCRIPT_DIR)/config.guess`; \
+		echo "HOST_OS:=$$HOST_OS" > $@; \
+		echo "HOST_ARCH:=$$HOST_ARCH" >> $@; \
+		echo "GNU_HOST_NAME:=$$GNU_HOST_NAME" >> $@; \
+		TAR=`which gtar 2>/dev/null`; \
+		[ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which tar 2>/dev/null`; \
+		echo "TAR:=$$TAR" >> $@; \
+		echo "BASH:=$(shell which bash)" >> $@; \
+		if find -L /tmp -maxdepth 0 >/dev/null 2>/dev/null; then \
+			echo 'FIND_L=find -L $$(1)' >>$@; \
+		else \
+			echo 'FIND_L=find $$(1) -follow' >> $@; \
+		fi; \
+	)
+
+endif
+
+ifeq ($(HOST_OS),Linux)
+  XARGS:=xargs -r
+else
+  XARGS:=xargs
+endif
+

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