hostapd: prevent spurious 20/40 mhz channel bandwidth switches if noscan is enabled
[openwrt.git] / include / host.mk
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                 PATCH=`which gpatch 2>/dev/null`; \
58                 [ -n "$$PATCH" -a -x "$$PATCH" ] || PATCH=`which patch 2>/dev/null`; \
59                 echo "PATCH:=$$PATCH" >> $@; \
60                 PYTHON=`which python2.7 2>/dev/null`; \
61                 [ -n "$$PYTHON" -a -x "$$PYTHON" ] || PYTHON=`which python 2>/dev/null`; \
62                 echo "PYTHON:=$$PYTHON" >> $@; \
63         )
64
65 endif