GNU bug report logs - #22522
Commit b88e9cded7ae3756e3a2ec4a23e8df352a0239f9 breaks emacs dumping for me

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Message #55 received at 22522 <at> debbugs.gnu.org (full text, mbox):

From: Ken Brown <kbrown <at> cornell.edu>
To: Paul Eggert <eggert <at> cs.ucla.edu>, Wolfgang Jenkner <wjenkner <at> inode.at>
Cc: Andy Moreton <andrewjmoreton <at> gmail.com>, 22522 <at> debbugs.gnu.org
Subject: Re: bug#22522: Commit b88e9cded7ae3756e3a2ec4a23e8df352a0239f9 breaks
 emacs dumping for me
Date: Tue, 2 Feb 2016 22:18:36 -0500

On 2/2/2016 7:09 PM, Ken Brown wrote:
> What about an ad hoc temporary solution that simply defines
> __ISO_C_VISIBLE to be 2011 on Cygwin prior to the inclusion of
> <stdlib.h>?  Or do you have a better idea?

Something like this?

diff --git a/src/conf_post.h b/src/conf_post.h
index c5eec5a..1cb4953 100644
--- a/src/conf_post.h
+++ b/src/conf_post.h
@@ -221,7 +221,17 @@ extern char *emacs_getenv_TZ (void);
 extern int emacs_setenv_TZ (char const *);

 #include <string.h>
+
+/* On Cygwin as of 2016-02-02 __ISO_C_VISIBLE is defined to be 1999 if
+   _GNU_SOURCE is defined.  This hides the declaration of
+   aligned_alloc in <stdlib.h> */
+#ifdef CYGWIN
+#pragma push_macro("__ISO_C_VISIBLE")
+#undef __ISO_C_VISIBLE
+#define __ISO_C_VISIBLE 2011
 #include <stdlib.h>
+#pragma pop_macro("__ISO_C_VISIBLE")
+#endif

 #if __GNUC__ >= 3  /* On GCC 3.0 we might get a warning.  */
 #define NO_INLINE __attribute__((noinline))

Ken

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