[Guile-commits] 03/07: Disable scm_fork on Cygwin

[Mike Gran]

mike121 pushed a commit to branch wip-cygwin-guile-2.2
in repository guile.

commit 8666a34d5e8ec4e22155b40f55e53f3a652b96f2
Author: Michael Gran <address@hidden>
Date:   Tue Apr 4 08:10:03 2017 -0700

    Disable scm_fork on Cygwin
    
    Cygwin's fork is incompatible with Guile's thread and GC model
    
    * libguile/posix.c (HAVE_FORK) [__CYGWIN__]: #undef HAVE_FORK when 
__CYGWIN__
---
 libguile/posix.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/libguile/posix.c b/libguile/posix.c
index 041b8b1..57aee0b 100644
--- a/libguile/posix.c
+++ b/libguile/posix.c
@@ -1,6 +1,6 @@
 /* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
  *   2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
- *   2014, 2016 Free Software Foundation, Inc.
+ *   2014, 2016, 2017 Free Software Foundation, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
@@ -85,6 +85,12 @@
 # include "posix-w32.h"
 #endif
 
+/* Note that Cygwin's DLL 2.8.0's forking model is incompatible with
+   Guile.  Forking is disabled on Cygwin.  */
+#ifdef __CYGWIN__
+# undef HAVE_FORK
+#endif
+
 #if HAVE_SYS_WAIT_H
 # include <sys/wait.h>
 #endif