Macports在OSX 10.9 - 编译与-stdlib = libstdc ++ [英] Macports on OSX 10.9 - compile with -stdlib=libstdc++

问题描述

在OSX 10.9中，clang ++的默认 -stdlib 选项是 libc ++ ，这是Macport在构建包时使用的选项。
有没有办法告诉Macports使用 libstdc ++ 而不是？

通过Macports构建OpenCV，所以它使用 libstdc ++ ，但我想我会遇到一个需要这样做其他包以及

-stdlib = libstdc ++

p>如果您需要更好地控制各种端口的构建过程，可以随时设置以下变量：

CXX =clang -std = c ++ 11 -stdlib = libc ++

$ b $ p

>并建立< port> from source：

sudo port -s install< ; port> -universal \

configure.cc =$ {CC}configure.cxx =$ {CXX}\

configure.cflags =$ { CFLAGS}configure.cxxflags =$ {CXXFLAGS}

另一种方法是安装 gcc48 （或以上）端口，并将其用作编译器。不要使用旧版本的Xcode安装的旧gcc-4.2.1。这是垃圾。

In OSX 10.9 the default -stdlib option for clang++ is libc++, so that's what Macport uses when building packages. Is there any way to tell Macports to use libstdc++ instead?

In particular I would like to build OpenCV through Macports so it's using libstdc++, but I imagine I'll run into a need to do so for other packages as well

解决方案

The option is simply: -stdlib=libstdc++

If you need finer control over the build process for various ports, you can always set variables like:
CXX = "clang -std=c++11 -stdlib=libc++, CXXFLAGS = "-Wall -O2 -march=core2", etc.

And build <port> from source:

sudo port -s install <port> -universal \
configure.cc="${CC}" configure.cxx="${CXX}" \
configure.cflags="${CFLAGS}" configure.cxxflags="${CXXFLAGS}"

The other alternative, is to install the gcc48 (or above) port, and use it as the compiler. Don't use the old gcc-4.2.1 installed with older versions of Xcode. It's rubbish.

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