From 7b8c3d9260476b208784369d16dd19ed47e7f906 Mon Sep 17 00:00:00 2001
From: Ivan Maidanski <ivmai@mail.ru>
Date: Sun, 23 Dec 2012 16:03:36 +0400
Subject: [PATCH] Fix GC_win32_free_heap compilation error for Cygwin (fix
 commit 'caa5af9')

* os_dep.c (GC_win32_free_heap): Do not invoke virtual free for
Cygwin, remove "else" branch  (only if MSWIN32 but not CYGWIN32).
---
 os_dep.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/os_dep.c b/os_dep.c
index 2074f465..05858021 100644
--- a/os_dep.c
+++ b/os_dep.c
@@ -2308,14 +2308,16 @@ void * os2_alloc(size_t bytes)
 #       endif
         GC_heap_bases[GC_n_heap_bases] = 0;
       }
-
-    // Avoiding the VirtualAlloc leak
-    } else {
+    } /* else */
+#   ifndef CYGWIN32
+      else {
+        /* Avoiding VirtualAlloc leak. */
         while (GC_n_heap_bases > 0) {
           VirtualFree(GC_heap_bases[--GC_n_heap_bases], 0, MEM_RELEASE);
           GC_heap_bases[GC_n_heap_bases] = 0;
         }
       }
+#   endif
   }
 #endif /* USE_WINALLOC || CYGWIN32 */
 
-- 
2.40.0