-$(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`" >> $@
+export TAR FIND
+
+ifneq ($(__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 "$$HOST_OS" in \
+ Linux) HOST_ARCH=`uname -m`;; \
+ *) HOST_ARCH=`uname -p`;; \
+ esac; \
+ GNU_HOST_NAME=`gcc -dumpmachine`; \
+ [ -n "$$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 "$$TAR" ] || TAR=`which gnutar 2>/dev/null`; \
+ [ -n "$$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