1 | # |
2 | # Copyright (C) 2007-2010 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 | |
18 | try-run = $(shell set -e; \ |
19 | TMP_F="$(TMP_DIR)/try-run.$$$$.tmp"; \ |
20 | if ($(1)) >/dev/null 2>&1; then echo "$(2)"; else echo "$(3)"; fi; \ |
21 | rm -f "$$TMP_F"; \ |
22 | ) |
23 | |
24 | host-cc-option = $(call try-run, \ |
25 | $(HOSTCC) $(HOST_CFLAGS) $(1) -c -xc /dev/null -o "$$TMP_F",$(1),$(2) \ |
26 | ) |
27 | |
28 | .PRECIOUS: $(TMP_DIR)/.host.mk |
29 | $(TMP_DIR)/.host.mk: $(TOPDIR)/include/host.mk |
30 | @mkdir -p $(TMP_DIR) |
31 | @( \ |
32 | HOST_OS=`uname`; \ |
33 | case "$$HOST_OS" in \ |
34 | Linux) HOST_ARCH=`uname -m`;; \ |
35 | Darwin) HOST_ARCH=`uname -m`;; \ |
36 | *) HOST_ARCH=`uname -p`;; \ |
37 | esac; \ |
38 | GNU_HOST_NAME=`gcc -dumpmachine`; \ |
39 | [ -z "$$GNU_HOST_NAME" -o "$$HOST_OS" = "Darwin" ] && \ |
40 | GNU_HOST_NAME=`$(TOPDIR)/scripts/config.guess`; \ |
41 | echo "HOST_OS:=$$HOST_OS" > $@; \ |
42 | echo "HOST_ARCH:=$$HOST_ARCH" >> $@; \ |
43 | echo "GNU_HOST_NAME:=$$GNU_HOST_NAME" >> $@; \ |
44 | TAR=`which gtar 2>/dev/null`; \ |
45 | [ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which gnutar 2>/dev/null`; \ |
46 | [ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which tar 2>/dev/null`; \ |
47 | echo "TAR:=$$TAR" >> $@; \ |
48 | FIND=`which gfind 2>/dev/null`; \ |
49 | [ -n "$$FIND" -a -x "$$FIND" ] || FIND=`which find 2>/dev/null`; \ |
50 | echo "FIND:=$$FIND" >> $@; \ |
51 | echo "BASH:=$(shell which bash)" >> $@; \ |
52 | if $$FIND -L /tmp -maxdepth 0 >/dev/null 2>/dev/null; then \ |
53 | echo "FIND_L=$$FIND -L \$$(1)" >>$@; \ |
54 | else \ |
55 | echo "FIND_L=$$FIND \$$(1) -follow" >> $@; \ |
56 | fi; \ |
57 | if xargs --help 2>&1 | grep 'gnu.org' >/dev/null; then \ |
58 | echo 'XARGS:=xargs -r' >> $@; \ |
59 | else \ |
60 | echo 'XARGS:=xargs' >> $@; \ |
61 | fi; \ |
62 | PATCH=`which gpatch 2>/dev/null`; \ |
63 | [ -n "$$PATCH" -a -x "$$PATCH" ] || PATCH=`which patch 2>/dev/null`; \ |
64 | echo "PATCH:=$$PATCH" >> $@; \ |
65 | ) |
66 | |
67 | endif |
68 | |