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#
# Copyright (C) 2007-2015 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
TMP_DIR ?= $(TOPDIR)/tmp
ifeq ($(if $(TARGET_BUILD),,$(DUMP)),)
-include $(TMP_DIR)/.host.mk
endif
ifneq ($(__host_inc),1)
__host_inc:=1
export PATH:=$(TOPDIR)/staging_dir/host/bin:$(PATH)
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 "$$TMP_F",$(1),$(2) \
)
.PRECIOUS: $(TMP_DIR)/.host.mk
$(TMP_DIR)/.host.mk: $(TOPDIR)/include/host.mk
@mkdir -p $(TMP_DIR)
@( \
HOST_OS=`uname`; \
case "$$HOST_OS" in \
Linux) HOST_ARCH=`uname -m`;; \
Darwin) HOST_ARCH=`uname -m`;; \
*) HOST_ARCH=`uname -p`;; \
esac; \
GNU_HOST_NAME=`gcc -dumpmachine`; \
[ -z "$$GNU_HOST_NAME" -o "$$HOST_OS" = "Darwin" ] && \
GNU_HOST_NAME=`$(TOPDIR)/scripts/config.guess`; \
echo "HOST_OS:=$$HOST_OS" > $@; \
echo "HOST_ARCH:=$$HOST_ARCH" >> $@; \
echo "GNU_HOST_NAME:=$$GNU_HOST_NAME" >> $@; \
if gfind -L /dev/null || find -L /dev/null; then \
echo "FIND_L=find -L \$$(1)" >> $@; \
else \
echo "FIND_L=find \$$(1) -follow" >> $@; \
fi \
) >/dev/null 2>/dev/null
endif
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