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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

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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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15
Config.in
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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 Note that this will make the system libraries incompatible with most of the packages
that are not selected during the build process 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 endmenu
menuconfig DEVEL menuconfig DEVEL

2
include/package.mk
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@ -5,6 +5,8 @@
# See /LICENSE for more information. # See /LICENSE for more information.
# #
__package_mk:=1
all: $(if $(DUMP),dumpinfo,compile) all: $(if $(DUMP),dumpinfo,compile)
PKG_BUILD_DIR ?= $(BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION)) 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