/* 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, 2004-2016 Free Software
Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+the Free Software Foundation, either version 3 of the License, or (at
+your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
# include config_opsysfile
#endif
+#include <stdbool.h>
+
+/* The type of bool bitfields. Needed to compile Objective-C with
+ standard GCC. It was also needed to port to pre-C99 compilers,
+ although we don't care about that any more. */
+#if 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>
#endif
#endif
+/* Simulate __has_attribute on compilers that lack it. It is used only
+ on arguments like alloc_size that are handled in this simulation. */
#ifndef __has_attribute
-# define __has_attribute(a) 0 /* non-clang */
+# define __has_attribute(a) __has_attribute_##a
+# define __has_attribute_alloc_size (4 < __GNUC__ + (3 <= __GNUC_MINOR__))
+# define __has_attribute_cleanup (3 < __GNUC__ + (4 <= __GNUC_MINOR__))
+# define __has_attribute_externally_visible \
+ (4 < __GNUC__ + (1 <= __GNUC_MINOR__))
+# define __has_attribute_no_address_safety_analysis false
+# define __has_attribute_no_sanitize_address \
+ (4 < __GNUC__ + (8 <= __GNUC_MINOR__))
+#endif
+
+/* Simulate __has_feature on compilers that lack it. It is used only
+ to define ADDRESS_SANITIZER below. */
+#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
#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
#define vfork fork
#endif /* DARWIN_OS */
+/* If HYBRID_MALLOC is defined (e.g., on Cygwin), emacs will use
+ gmalloc before dumping and the system malloc after dumping.
+ hybrid_malloc and friends, defined in gmalloc.c, are wrappers that
+ accomplish this. */
+#ifdef HYBRID_MALLOC
+#ifdef emacs
+#define malloc hybrid_malloc
+#define realloc hybrid_realloc
+#define calloc hybrid_calloc
+#define free hybrid_free
+#if defined HAVE_GET_CURRENT_DIR_NAME && !defined BROKEN_GET_CURRENT_DIR_NAME
+#define HYBRID_GET_CURRENT_DIR_NAME 1
+#define get_current_dir_name hybrid_get_current_dir_name
+#endif
+#endif
+#endif /* HYBRID_MALLOC */
+
/* We have to go this route, rather than the old hpux9 approach of
renaming the functions via macros. The system's stdlib.h has fully
prototyped declarations, which yields a conflicting definition of
#ifdef HPUX
#undef srandom
#undef random
-/* We try to avoid checking for random and rint on hpux in
- configure.ac, but some other configure test might check for them as
- a dependency, so to be safe we also undefine them here.
- */
#undef HAVE_RANDOM
#undef HAVE_RINT
#endif /* HPUX */
#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
# define HAVE_LSTAT 1
#else
# define lstat stat
+/* DJGPP 2.03 and older don't have the next two. */
+# define EOVERFLOW ERANGE
+# define SIZE_MAX 4294967295U
#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
+
+/* We must intercept 'opendir' calls to stash away the directory name,
+ so we could reuse it in readlinkat; see msdos.c. */
+#define opendir sys_opendir
+
/* End of gnulib-related stuff. */
#define emacs_raise(sig) msdos_fatal_signal (sig)
+/* DATA_START is needed by vm-limit.c and unexcoff.c. */
+#define DATA_START (&etext + 1)
+
/* Define one of these for easier conditionals. */
#ifdef HAVE_X_WINDOWS
/* We need a little extra space, see ../../lisp/loadup.el and the
directory tree). Given the unknown policy of different DPMI
hosts regarding loading of untouched pages, I'm not going to risk
enlarging Emacs footprint by another 100+ KBytes. */
-#define SYSTEM_PURESIZE_EXTRA (-170000+65000)
+#define SYSTEM_PURESIZE_EXTRA (-170000+90000)
#endif
#endif /* MSDOS */
#endif
#endif
+#ifdef CYGWIN
+#define SYSTEM_PURESIZE_EXTRA 10000
+#endif
+
#if defined HAVE_NTGUI && !defined DebPrint
# ifdef EMACSDEBUG
extern void _DebPrint (const char *fmt, ...);
#if defined CYGWIN && defined HAVE_NTGUI
# define NTGUI_UNICODE /* Cygwin runs only on UNICODE-supporting systems */
# define _WIN32_WINNT 0x500 /* Win2k */
+/* The following was in /usr/include/string.h prior to Cygwin 1.7.33. */
+#ifndef strnicmp
+#define strnicmp strncasecmp
+#endif
#endif
#ifdef emacs /* Don't do this for lib-src. */
#define RE_TRANSLATE_P(TBL) (!EQ (TBL, make_number (0)))
#endif
+/* Tell time_rz.c to use Emacs's getter and setter for TZ.
+ Only Emacs uses time_rz so this is OK. */
+#define getenv_TZ emacs_getenv_TZ
+#define setenv_TZ emacs_setenv_TZ
+extern char *emacs_getenv_TZ (void);
+extern int emacs_setenv_TZ (char const *);
+
#include <string.h>
#include <stdlib.h>
#define NO_INLINE
#endif
-#if (__clang__ \
- ? __has_attribute (externally_visible) \
- : (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)))
+#if __has_attribute (externally_visible)
#define EXTERNALLY_VISIBLE __attribute__((externally_visible))
#else
#define EXTERNALLY_VISIBLE
#endif
#define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST
+#define ATTRIBUTE_UNUSED _GL_UNUSED
+
+#if 3 <= __GNUC__
+# define ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
+#else
+# define ATTRIBUTE_MALLOC
+#endif
+
+#if __has_attribute (alloc_size)
+# define ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args))
+#else
+# define ATTRIBUTE_ALLOC_SIZE(args)
+#endif
+
+#define ATTRIBUTE_MALLOC_SIZE(args) ATTRIBUTE_MALLOC ATTRIBUTE_ALLOC_SIZE (args)
+
+/* 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 fixed in GCC 4.9.0 and
+ clang 3.4. */
+#if (! ADDRESS_SANITIZER \
+ || ((4 < __GNUC__ + (9 <= __GNUC_MINOR__)) \
+ || 3 < __clang_major__ + (4 <= __clang_minor__)))
+# define ADDRESS_SANITIZER_WORKAROUND /* No workaround needed. */
+#else
+# define ADDRESS_SANITIZER_WORKAROUND NO_INLINE
+#endif
+
+/* Attribute of functions whose code should not have addresses
+ sanitized. */
+
+#if __has_attribute (no_sanitize_address)
+# 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
before including config.h or any other .h file.
Other .c files should not define INLINE.
+ For Emacs, this is done by having emacs.c first '#define INLINE
+ EXTERN_INLINE' and then include every .h file that uses INLINE.
+
+ The INLINE_HEADER_BEGIN and INLINE_HEADER_END suppress bogus
+ warnings in some GCC versions; see ../m4/extern-inline.m4.
C99 compilers compile functions like 'incr' as C99-style extern
- inline functions. Pre-C99 GCCs do something similar with
- GNU-specific keywords. Pre-C99 non-GCC compilers use static
+ inline functions. Buggy GCC implementations do something similar with
+ GNU-specific keywords. Buggy non-GCC compilers use static
functions, which bloats the code but is good enough. */
#ifndef INLINE
/* To use the struct hack with N elements, declare the struct like this:
struct s { ...; t name[FLEXIBLE_ARRAY_MEMBER]; };
- and allocate (offsetof (struct s, name) + N * sizeof (t)) bytes. */
-#if 199901 <= __STDC_VERSION__
-# define FLEXIBLE_ARRAY_MEMBER
-#elif __GNUC__ && !defined __STRICT_ANSI__
-# define FLEXIBLE_ARRAY_MEMBER 0
-#else
+ and allocate (offsetof (struct s, name) + N * sizeof (t)) bytes.
+ IBM xlc 12.1 claims to do C99 but mishandles flexible array members. */
+#ifdef __IBMC__
# define FLEXIBLE_ARRAY_MEMBER 1
+#else
+# define FLEXIBLE_ARRAY_MEMBER
#endif
/* Use this to suppress gcc's `...may be used before initialized' warnings. */