include/host.mk

   1 #
   2 # Copyright (C) 2007 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7
   8 TMP_DIR ?= $(TOPDIR)/tmp
   9 ifeq ($(if $(TARGET_BUILD),,$(DUMP)),)
  10   -include $(TMP_DIR)/.host.mk
  11 endif
  12
  13 export TAR FIND
  14
  15 ifneq ($(__host_inc),1)
  16 __host_inc:=1
  17 .PRECIOUS: $(TMP_DIR)/.host.mk
  18 $(TMP_DIR)/.host.mk: $(TOPDIR)/include/host.mk
  19         @mkdir -p $(TMP_DIR)
  20         @( \
  21                 HOST_OS=`uname`; \
  22                 case "$$HOST_OS" in \
  23                         Linux) HOST_ARCH=`uname -m`;; \
  24                         *) HOST_ARCH=`uname -p`;; \
  25                 esac; \
  26                 GNU_HOST_NAME=`gcc -dumpmachine`; \
  27                 [ -n "$$GNU_HOST_NAME" ] || \
  28                         GNU_HOST_NAME=`$(SCRIPT_DIR)/config.guess`; \
  29                 echo "HOST_OS:=$$HOST_OS" > $@; \
  30                 echo "HOST_ARCH:=$$HOST_ARCH" >> $@; \
  31                 echo "GNU_HOST_NAME:=$$GNU_HOST_NAME" >> $@; \
  32                 TAR=`which gtar 2>/dev/null`; \
  33                 [ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which tar 2>/dev/null`; \
  34                 echo "TAR:=$$TAR" >> $@; \
  35                 FIND=`which gfind 2>/dev/null`; \
  36                 [ -n "$$FIND" -a -x "$$FIND" ] || FIND=`which find 2>/dev/null`; \
  37                 echo "FIND:=$$FIND" >> $@; \
  38                 echo "BASH:=$(shell which bash)" >> $@; \
  39                 if $$FIND -L /tmp -maxdepth 0 >/dev/null 2>/dev/null; then \
  40                         echo "FIND_L=$$FIND -L \$$(1)" >>$@; \
  41                 else \
  42                         echo "FIND_L=$$FIND \$$(1) -follow" >> $@; \
  43                 fi; \
  44                 if xargs --help 2>&1 | grep 'gnu.org' >/dev/null; then \
  45                         echo 'XARGS:=xargs -r' >> $@; \
  46                 else \
  47                         echo 'XARGS:=xargs' >> $@; \
  48                 fi; \
  49         )
  50
  51 endif