$OpenBSD: patch-lib_pure_endians_nim,v 1.1 2017/01/09 10:32:33 juanfra Exp $

GCC 4.2 doesn't support __builtin_bswap32. Enable it only for egcc.

--- lib/pure/endians.nim.orig	Mon Jan  9 03:16:08 2017
+++ lib/pure/endians.nim	Mon Jan  9 03:16:28 2017
@@ -10,7 +10,7 @@
 ## This module contains helpers that deal with different byte orders
 ## (`endian`:idx:).
 
-when defined(gcc) or defined(llvm_gcc) or defined(clang):
+when defined(egcc) or defined(llvm_gcc) or defined(clang):
   const useBuiltinSwap = true
   proc builtin_bswap16(a: uint16): uint16 {.
       importc: "__builtin_bswap16", nodecl, nosideeffect.}