From f9ed5e00896ecc2825e320b9e9a6a65aac502853 Mon Sep 17 00:00:00 2001
From: Matthew Bauer <mjbauer95@gmail.com>
Date: Sat, 26 Jan 2019 01:46:10 -0500
Subject: [PATCH] =?UTF-8?q?libstdcxx:=20don=E2=80=99t=20set=20stdlib=20aut?=
 =?UTF-8?q?omatically?=
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We don’t need to set -stdlib=libstdc++. This only works on Clang so it
is not good to set it globally. In addition, Clang knows to use
libstdc++ on Linux by default if no stdlib is set:

https://github.com/llvm-mirror/clang/blob/324f918438715b4a0d024af5930628c1674f4fcd/lib/Driver/ToolChains/Linux.cpp#L456

It’s a good policy to just leave off stdlib for now.

Fixes #29877.
---
 pkgs/development/compilers/gcc/libstdc++-hook.sh | 1 -
 1 file changed, 1 deletion(-)

diff --git a/pkgs/development/compilers/gcc/libstdc++-hook.sh b/pkgs/development/compilers/gcc/libstdc++-hook.sh
index 8b1d5d2da678..19db70597ce5 100644
--- a/pkgs/development/compilers/gcc/libstdc++-hook.sh
+++ b/pkgs/development/compilers/gcc/libstdc++-hook.sh
@@ -2,4 +2,3 @@
 getHostRole
 
 export NIX_${role_pre}CXXSTDLIB_COMPILE+=" -isystem $(echo -n @gcc@/include/c++/*) -isystem $(echo -n @gcc@/include/c++/*)/$(@gcc@/bin/gcc -dumpmachine)"
-export NIX_${role_pre}CXXSTDLIB_LINK=" -stdlib=libstdc++"