Merge from emacs-24; up to 2012-12-17T11:17:34Z!rgm@gnu.org

[gnu-emacs] / src / conf_post.h

diff --git a/src/conf_post.h b/src/conf_post.h
index 53fc941f4647629f2e7e034df44557640e624b09..6c9747a436cd480a7070d583fb246da700cbaaea 100644 (file)
--- a/src/conf_post.h
+++ b/src/conf_post.h
@@ -1,7 +1,7 @@
 /* conf_post.h --- configure.ac includes this via AH_BOTTOM
 
-Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
-  Free Software Foundation, Inc.
+Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013 Free Software
+Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -40,6 +40,10 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #endif
 #endif
 
+#ifndef __has_attribute
+# define __has_attribute(a) 0 /* non-clang */
+#endif
+
 /* This silences a few compilation warnings on FreeBSD.  */
 #ifdef BSD_SYSTEM_AHB
 #undef BSD_SYSTEM_AHB
@@ -110,8 +114,17 @@ You lose; /* Emacs for DOS must be compiled with DJGPP */
 #else
 # define lstat stat
 #endif
+/* The "portable" definition of _GL_INLINE on config.h does not work
+   with DJGPP GCC 3.4.4: it causes unresolved externals in sysdep.c,
+   although lib/execinfo.h is included and the inline functions there
+   are visible.  */
+#if __GNUC__ < 4
+# define _GL_EXECINFO_INLINE inline
+#endif
 /* End of gnulib-related stuff.  */
 
+#define emacs_raise(sig) msdos_fatal_signal (sig)
+
 /* Define one of these for easier conditionals.  */
 #ifdef HAVE_X_WINDOWS
 /* We need a little extra space, see ../../lisp/loadup.el and the
@@ -142,19 +155,19 @@ You lose; /* Emacs for DOS must be compiled with DJGPP */
 #endif
 #endif
 
-#if defined(HAVE_NTGUI) && !defined(DebPrint)
-# if defined(EMACSDEBUG)
+#if defined HAVE_NTGUI && !defined DebPrint
+# ifdef EMACSDEBUG
 extern void _DebPrint (const char *fmt, ...);
 #  define DebPrint(stuff) _DebPrint stuff
 # else
 #  define DebPrint(stuff)
-# endif /* EMACSDEBUG */
-#endif /* DebPrint */
+# endif
+#endif
 
-#if defined(CYGWIN) && defined(HAVE_NTGUI)
-#define NTGUI_UNICODE /* Cygwin runs only on UNICODE-supporting systems */
-#define _WIN32_WINNT 0x500 /* Win2k */
-#endif /* CYGWIN && HAVE_NTGUI */
+#if defined CYGWIN && defined HAVE_NTGUI
+# define NTGUI_UNICODE /* Cygwin runs only on UNICODE-supporting systems */
+# define _WIN32_WINNT 0x500 /* Win2k */
+#endif
 
 #ifdef emacs /* Don't do this for lib-src.  */
 /* Tell regex.c to use a type compatible with Emacs.  */
@@ -178,7 +191,9 @@ extern void _DebPrint (const char *fmt, ...);
 #define NO_INLINE
 #endif
 
-#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
+#if (__clang__                                                         \
+     ? __has_attribute (externally_visible)                            \
+     : (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)))
 #define EXTERNALLY_VISIBLE __attribute__((externally_visible))
 #else
 #define EXTERNALLY_VISIBLE