mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-07-04 23:22:22 +03:00
buildsystem: add a macro to test options supported by the host compiler
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21304 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
parent
6b41b93bc5
commit
cb2f53e0b7
|
@ -1,5 +1,5 @@
|
||||||
#
|
#
|
||||||
# Copyright (C) 2007 OpenWrt.org
|
# Copyright (C) 2007-2010 OpenWrt.org
|
||||||
#
|
#
|
||||||
# This is free software, licensed under the GNU General Public License v2.
|
# This is free software, licensed under the GNU General Public License v2.
|
||||||
# See /LICENSE for more information.
|
# See /LICENSE for more information.
|
||||||
|
@ -14,6 +14,17 @@ export TAR FIND
|
||||||
|
|
||||||
ifneq ($(__host_inc),1)
|
ifneq ($(__host_inc),1)
|
||||||
__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
|
.PRECIOUS: $(TMP_DIR)/.host.mk
|
||||||
$(TMP_DIR)/.host.mk: $(TOPDIR)/include/host.mk
|
$(TMP_DIR)/.host.mk: $(TOPDIR)/include/host.mk
|
||||||
@mkdir -p $(TMP_DIR)
|
@mkdir -p $(TMP_DIR)
|
||||||
|
|
Loading…
Reference in New Issue
Block a user