Port to IRIX 6.5.

[bpt/emacs.git] / src / conf_post.h

diff --git a/src/conf_post.h b/src/conf_post.h
index 0786bdf..bb3be1b 100644 (file)
--- a/src/conf_post.h
+++ b/src/conf_post.h
@@ -1,6 +1,6 @@
 /* conf_post.h --- configure.ac includes this via AH_BOTTOM
 
-Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013 Free Software
+Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014 Free Software
 Foundation, Inc.
 
 This file is part of GNU Emacs.
@@ -32,6 +32,16 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 # include config_opsysfile
 #endif
 
+#include <stdbool.h>
+
+/* The pre-C99 <stdbool.h> emulation doesn't work for bool bitfields.
+   Nor does compiling Objective-C with standard GCC.  */
+#if __STDC_VERSION__ < 199901 || NS_IMPL_GNUSTEP
+typedef unsigned int bool_bf;
+#else
+typedef bool bool_bf;
+#endif
+
 #ifndef WINDOWSNT
 /* On AIX 3 this must be included before any other include file.  */
 #include <alloca.h>
@@ -40,8 +50,19 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #endif
 #endif
 
+/* When not using Clang, assume its attributes and features are absent.  */
 #ifndef __has_attribute
-# define __has_attribute(a) 0 /* non-clang */
+# define __has_attribute(a) false
+#endif
+#ifndef __has_feature
+# define __has_feature(a) false
+#endif
+
+/* True if addresses are being sanitized.  */
+#if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
+# define ADDRESS_SANITIZER true
+#else
+# define ADDRESS_SANITIZER false
 #endif
 
 #ifdef DARWIN_OS
@@ -49,8 +70,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define malloc unexec_malloc
 #define realloc unexec_realloc
 #define free unexec_free
-/* Don't use posix_memalign because it is not compatible with unexmacosx.c.  */
-#undef HAVE_POSIX_MEMALIGN
 #endif
 /* The following solves the problem that Emacs hangs when evaluating
    (make-comint "test0" "/nodir/nofile" nil "") when /nodir/nofile
@@ -80,7 +99,8 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #ifdef emacs
 char *_getpty();
 #endif
-
+#define INET6 /* Needed for struct sockaddr_in6.  */
+#undef HAVE_GETADDRINFO /* IRIX has getaddrinfo but not struct addrinfo.  */
 #endif /* IRIX6_5 */
 
 #ifdef MSDOS
@@ -142,6 +162,10 @@ You lose; /* Emacs for DOS must be compiled with DJGPP */
 #endif
 #endif
 
+#ifdef CYGWIN
+#define SYSTEM_PURESIZE_EXTRA 10000
+#endif
+
 #if defined HAVE_NTGUI && !defined DebPrint
 # ifdef EMACSDEBUG
 extern void _DebPrint (const char *fmt, ...);
@@ -196,6 +220,32 @@ extern void _DebPrint (const char *fmt, ...);
 
 #define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST
 
+/* Work around GCC bug 59600: when a function is inlined, the inlined
+   code may have its addresses sanitized even if the function has the
+   no_sanitize_address attribute.  This bug is present in GCC 4.8.2
+   and clang 3.3, the latest releases as of December 2013, and the
+   only platforms known to support address sanitization.  When the bug
+   is fixed the #if can be updated accordingly.  */
+#if ADDRESS_SANITIZER
+# define ADDRESS_SANITIZER_WORKAROUND NO_INLINE
+#else
+# define ADDRESS_SANITIZER_WORKAROUND
+#endif
+
+/* Attribute of functions whose code should not have addresses
+   sanitized.  */
+
+#if (__has_attribute (no_sanitize_address) \
+     || 4 < __GNUC__ + (8 <= __GNUC_MINOR__))
+# define ATTRIBUTE_NO_SANITIZE_ADDRESS \
+    __attribute__ ((no_sanitize_address)) ADDRESS_SANITIZER_WORKAROUND
+#elif __has_attribute (no_address_safety_analysis)
+# define ATTRIBUTE_NO_SANITIZE_ADDRESS \
+    __attribute__ ((no_address_safety_analysis)) ADDRESS_SANITIZER_WORKAROUND
+#else
+# define ATTRIBUTE_NO_SANITIZE_ADDRESS
+#endif
+
 /* Some versions of GNU/Linux define noinline in their headers.  */
 #ifdef noinline
 #undef noinline
@@ -248,23 +298,6 @@ extern void _DebPrint (const char *fmt, ...);
 # define FLEXIBLE_ARRAY_MEMBER 1
 #endif
 
-#ifndef __has_builtin
-# define __has_builtin(x) 0
-#endif
-
-/* Tell the compiler (and lint) that COND will always hold, and that
-   it should optimize (or check) accordingly.  */
-#if (__has_builtin (__builtin_unreachable) \
-     || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) || __GNUC__ > 4)
-# define assume(cond) ((cond) ? (void) 0 : __builtin_unreachable ())
-#elif defined _MSC_VER
-# define assume(cond) __assume (cond)
-#elif defined lint
-# define assume(cond) ((cond) ? (void) 0 : abort ())
-#else
-# define assume(cond) ((void) (0 && (cond)))
-#endif
-
 /* Use this to suppress gcc's `...may be used before initialized' warnings. */
 #ifdef lint
 /* Use CODE only if lint checking is in effect.  */