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build: add a config option for choosing the prefered standard c++ library and add uclibc++.mk to make this easy to handle in packages

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32369 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2012-06-14 20:26:04 +00:00
parent 4c137dea8b
commit eb1c7a641f
3 changed files with 29 additions and 0 deletions

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@ -395,6 +395,21 @@ menu "Global build settings"
Note that this will make the system libraries incompatible with most of the packages
that are not selected during the build process
choice
prompt "Preferred standard C++ library"
default USE_LIBSTDCXX if USE_EGLIBC
default USE_UCLIBCXX
help
Select the preferred standard C++ library for all packages that support this.
config USE_UCLIBCXX
bool "uClibc++"
config USE_LIBSTDCXX
bool "libstdc++"
endchoice
endmenu
menuconfig DEVEL

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@ -5,6 +5,8 @@
# See /LICENSE for more information.
#
__package_mk:=1
all: $(if $(DUMP),dumpinfo,compile)
PKG_BUILD_DIR ?= $(BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))

12
include/uclibc++.mk Normal file
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@ -0,0 +1,12 @@
ifndef DUMP
ifdef __package_mk
$(error uclibc++.mk must be included before package.mk)
endif
endif
PKG_PREPARED_DEPENDS += CONFIG_USE_UCLIBCXX
CXX_DEPENDS = +USE_UCLIBCXX:uclibcxx +USE_LIBSTDCXX:libstdcpp
ifneq ($(CONFIG_USE_UCLIBCXX),)
TARGET_CXX="g++-uc"
endif