Invalid deployment target for -stdlib=libc++ on OSX 10.8 - c++

Question

I am compiling through node-gyp a Node.JS package written in C++. When I compile it I receive the following error: clang: error: invalid deployment target for -stdlib=libc++ (requires OS X 10.7 or later). I'm running on OSX 10.8, and I have installed the XCode Command Line Tools. This is the file used by node-gyp to compile the package:
{
"targets": [
{
"target_name": "package_name",
'type': 'executable',
'xcode_settings': {
'OTHER_CFLAGS': [
"-std=c++11",
"-stdlib=libc++"
],
},
"sources": [ "package_src.cpp" ],
}
]
}
Basically it specifies the target of the compilation, the type and the flags, as well as the sources.
Any idea on how I can solve this problem?

Answer 1

Whilst you got OS X 10.8 clang will try to build it so that it can be run on other older OS X versions too. Now since -stdlib=libc++ requires a minimum version of 10.7 it won't compile it unless you explicitly tell it that you'll use 10.7 (or higher) as the deployment target by specifying
'MACOSX_DEPLOYMENT_TARGET': '10.7'
inside the xcode_settings.
In your case the complete settings should look like:
{
"targets": [
{
"target_name": "package_name",
'type': 'executable',
'xcode_settings': {
'MACOSX_DEPLOYMENT_TARGET': '10.7',
'OTHER_CFLAGS': [
"-std=c++11",
"-stdlib=libc++"
],
},
"sources": [ "package_src.cpp" ],
}
]
}

Answer 2

I don't know what worked for you, #drewish, but this is how I got it to work:
{
"targets": [
{
"target_name": "package_name",
'type': 'executable',
'xcode_settings': {
'OTHER_CFLAGS': [
"-std=c++11",
"-stdlib=libc++",
"-mmacosx-version-min=10.7"
],
},
"sources": [ "overcpu.cpp" ],
}
]
}