swift: 4.0.3 -> 4.1

pkgs/development/compilers/swift/purity.patch

@@ -1,6 +1,17 @@
---- a/lib/Driver/Tools.cpp	2016-08-25 15:48:05.187553443 +0200
-+++ b/lib/Driver/Tools.cpp	2016-08-25 15:48:47.534468882 +0200
-@@ -9420,13 +9420,6 @@
+From 4add81bba40dcec62c4ea4481be8e35ac53e89d8 Mon Sep 17 00:00:00 2001
+From: Will Dietz <w@wdtz.org>
+Date: Thu, 18 May 2017 11:56:12 -0500
+Subject: [PATCH] "purity" patch for 5.0
+
+---
+ lib/Driver/ToolChains/Gnu.cpp | 7 -------
+ 1 file changed, 7 deletions(-)
+
+diff --git a/lib/Driver/ToolChains/Gnu.cpp b/lib/Driver/ToolChains/Gnu.cpp
+index fe3c0191bb..c6a482bece 100644
+--- a/lib/Driver/ToolChains/Gnu.cpp
++++ b/lib/Driver/ToolChains/Gnu.cpp
+@@ -494,13 +494,6 @@ void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
    if (!Args.hasArg(options::OPT_static)) {
      if (Args.hasArg(options::OPT_rdynamic))
        CmdArgs.push_back("-export-dynamic");
@@ -14,3 +25,6 @@
    }
  
    CmdArgs.push_back("-o");
+-- 
+2.11.0
+