From b4e2a846e1c619988d1f9a74b33d8f3eeafecf94 Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Mon, 28 Mar 2016 02:43:16 +0200
Subject: [PATCH] munmap for LLVM

---
 lib/system/osalloc.nim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/system/osalloc.nim b/lib/system/osalloc.nim
index cc1a282133..78410d7160 100644
--- a/lib/system/osalloc.nim
+++ b/lib/system/osalloc.nim
@@ -94,7 +94,7 @@ elif defined(posix):
   proc mmap(adr: pointer, len: int, prot, flags, fildes: cint,
             off: int): pointer {.header: "<sys/mman.h>".}
 
-  proc munmap(adr: pointer, len: int) {.header: "<sys/mman.h>".}
+  proc munmap(adr: pointer, len: int): cint {.header: "<sys/mman.h>".}
 
   proc osAllocPages(size: int): pointer {.inline.} =
     result = mmap(nil, size, PROT_READ or PROT_WRITE,
@@ -108,7 +108,7 @@ elif defined(posix):
     if result == cast[pointer](-1): result = nil
 
   proc osDeallocPages(p: pointer, size: int) {.inline} =
-    when reallyOsDealloc: munmap(p, size)
+    when reallyOsDealloc: discard munmap(p, size)
 
 elif defined(windows):
   const