X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/00ff299f672bb198eaf876e395e4bb683b26fa93..e11397b6d48db209cba391601df610dcff15760f:/include/host.mk?ds=sidebyside diff --git a/include/host.mk b/include/host.mk index 1130d5b9a..02365d9ea 100644 --- a/include/host.mk +++ b/include/host.mk @@ -1,17 +1,34 @@ # -# Copyright (C) 2006 OpenWrt.org +# Copyright (C) 2007-2010 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # -include $(TMP_DIR)/.host.mk +TMP_DIR ?= $(TOPDIR)/tmp +ifeq ($(if $(TARGET_BUILD),,$(DUMP)),) + -include $(TMP_DIR)/.host.mk +endif -export TAR +export TAR FIND -$(TMP_DIR)/.host.mk: $(INCLUDE_DIR)/host.mk +ifneq ($(__host_inc),1) +__host_inc:=1 + +try-run = $(shell set -e; \ + TMP_F="$(TMP_DIR)/try-run.$$$$.tmp"; \ + if ($(1)) >/dev/null 2>&1; then echo "$(2)"; else echo "$(3)"; fi; \ + rm -f "$$TMP_F"; \ +) + +host-cc-option = $(call try-run, \ + $(HOSTCC) $(HOST_CFLAGS) $(1) -c -xc /dev/null -o "$$TMP_F",$(1),$(2) \ +) + +.PRECIOUS: $(TMP_DIR)/.host.mk +$(TMP_DIR)/.host.mk: $(TOPDIR)/include/host.mk + @mkdir -p $(TMP_DIR) @( \ - echo -n "BASH:=$(shell which bash)"; \ HOST_OS=`uname`; \ case "$$HOST_OS" in \ Linux) HOST_ARCH=`uname -m`;; \ @@ -23,11 +40,24 @@ $(TMP_DIR)/.host.mk: $(INCLUDE_DIR)/host.mk echo "HOST_OS:=$$HOST_OS" > $@; \ echo "HOST_ARCH:=$$HOST_ARCH" >> $@; \ echo "GNU_HOST_NAME:=$$GNU_HOST_NAME" >> $@; \ - TAR=`which gtar`; \ - [ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which tar`; \ + TAR=`which gtar 2>/dev/null`; \ + [ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which gnutar 2>/dev/null`; \ + [ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which tar 2>/dev/null`; \ echo "TAR:=$$TAR" >> $@; \ - ZCAT=`which gzcat`; \ - [ -n "$$ZCAT" -a -x "$$ZCAT" ] || ZCAT=`which zcat`; \ - echo "ZCAT:=$$ZCAT" >> $@; \ + FIND=`which gfind 2>/dev/null`; \ + [ -n "$$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