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/usr/bin/g++-libc++ is in libc++-helpers 3.7.0-1.

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#!/bin/sh

cxx_libs="-lc++"
c_libs="-lc -lgcc_s"
pthread_libs="-lpthread $c_libs"

libs="$cxx_libs $c_libs"

for i; do
    if test x"$i" = x"-pthread"; then
        libs="$libs $pthread_libs"
        break
    fi
done

gcc -std=c++0x -nodefaultlibs $libs -isystem/usr/include/c++/v1 "$@"