[rdc] rework board detection

[openwrt.git] / include / host.mk

diff --git a/include/host.mk b/include/host.mk
index abcf045..b93ab8d 100644 (file)
--- a/include/host.mk
+++ b/include/host.mk
@@ -1,13 +1,22 @@
 # 
-# 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 ?= $(TOPDIR)/tmp
+ifeq ($(if $(TARGET_BUILD),,$(DUMP)),)
+  -include $(TMP_DIR)/.host.mk
+endif
 
-$(TOPDIR)/.host.mk: $(INCLUDE_DIR)/host.mk
+export TAR FIND
+
+ifneq ($(__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 "$$HOST_OS" in \
@@ -20,8 +29,24 @@ $(TOPDIR)/.host.mk: $(INCLUDE_DIR)/host.mk
                echo "HOST_OS:=$$HOST_OS" > $@; \
                echo "HOST_ARCH:=$$HOST_ARCH" >> $@; \
                echo "GNU_HOST_NAME:=$$GNU_HOST_NAME" >> $@; \
-               if tar --version 2>&1 | grep 'GNU' >/dev/null; then \
-                       echo "TAR_WILDCARDS:=--wildcards" >> $@; \
+               TAR=`which gtar 2>/dev/null`; \
+               [ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which gnutar 2>/dev/null`; \
+               [ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which tar 2>/dev/null`; \
+               echo "TAR:=$$TAR" >> $@; \
+               FIND=`which gfind 2>/dev/null`; \
+               [ -n "$$FIND" -a -x "$$FIND" ] || FIND=`which find 2>/dev/null`; \
+               echo "FIND:=$$FIND" >> $@; \
+               echo "BASH:=$(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; \
+               if xargs --help 2>&1 | grep 'gnu.org' >/dev/null; then \
+                       echo 'XARGS:=xargs -r' >> $@; \
+               else \
+                       echo 'XARGS:=xargs' >> $@; \
                fi; \
        )
 
+endif