+2014-05-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ Assume C99 or later (Bug#17487).
+ * lib/stdarg.in.h, lib/stdbool.in.h, m4/stdarg.m4, m4/stdbool.m4:
+ Remove.
+ * configure.ac (_AC_PROG_CC_C89): Define a dummy, to keep 'configure'
+ smaller.
+ (gl_PROG_CC_C99): Use this to get C99 or later.
+ * lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
+
2014-05-16 Paul Eggert <eggert@cs.ucla.edu>
Don't require pkg-config when building from repository.
+2014-05-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ Assume C99 or later (Bug#17487).
+ * merge-gnulib (GNULIB_MODULES): Remove stdarg, stdbool.
+ (GNULIB_TOOL_FLAGS): Avoid stdarg, stdbool.
+
2014-05-16 Paul Eggert <eggert@cs.ucla.edu>
Don't require pkg-config when building from repository.
intprops largefile lstat
manywarnings memrchr mkostemp mktime
pipe2 pselect pthread_sigmask putenv qacl readlink readlinkat
- sig2str socklen stat-time stdalign stdarg stdbool stdio
+ sig2str socklen stat-time stdalign stdio
strftime strtoimax strtoumax symlink sys_stat
sys_time time timer-time timespec-add timespec-sub
unsetenv update-copyright utimens
--avoid=open --avoid=openat-die --avoid=opendir
--avoid=raise
--avoid=save-cwd --avoid=select --avoid=sigprocmask
+ --avoid=stdarg --avoid=stdbool
--avoid=threadlib
--conditional-dependencies --import --no-changelog --no-vc-files
--makefile-name=gnulib.mk
#### Choose a compiler.
+dnl Don't bother to test for C89.
+AC_DEFUN([_AC_PROG_CC_C89], [$2])
+
dnl Sets GCC=yes if using gcc.
AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
if test -n "$XCRUN"; then
test -n "$AR" && export AR
fi
+dnl Emacs needs C99 or later.
+gl_PROG_CC_C99
+
AM_PROG_CC_C_O
if test x$GCC = xyes; then
CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
fi
-# Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
+# Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
AC_DEFUN([AC_TYPE_SIZE_T])
# Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
AC_DEFUN([AC_TYPE_UID_T])
+2014-05-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ Assume C99 or later (Bug#17487).
+ * internals.texi (C Dialect): Document this.
+
2014-05-15 Dmitry Antipov <dmantipov@yandex.ru>
* lists.texi (Building Cons Cells and Lists): Remove
@section C Dialect
@cindex C programming language
-The C part of Emacs is portable to C89: C99-specific features such as
-@samp{<stdbool.h>} and @samp{inline} are not used without a check,
+The C part of Emacs is portable to C99 or later: C11-specific features such
+as @samp{<stdalign.h>} and @samp{_Noreturn} are not used without a check,
typically at configuration time, and the Emacs build procedure
-provides a substitute implementation if necessary. Some C99 features,
-such as declarations after statements, are too difficult to provide
-substitutes for, so they are avoided entirely.
+provides a substitute implementation if necessary. Some C11 features,
+such as anonymous structures and unions, are too difficult to emulate,
+so they are avoided entirely.
-At some point in the not-too-distant future the base C dialect will
-change from C89 to C99, and eventually it will no doubt change to C11.
+At some point in the future the base C dialect will no doubt change to C11.
@node Writing Emacs Primitives
@section Writing Emacs Primitives
+2014-05-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Assume C99 or later (Bug#17487).
+
2014-05-16 Paul Eggert <eggert@cs.ucla.edu>
Don't require pkg-config when building from repository.
* Installation Changes in Emacs 24.5
+++
+** Building Emacs now requires C99 or later.
+
** Building Emacs now requires GNU make.
** By default, Emacs no longer works on IRIX. We expect that Emacs
# the same distribution terms as the rest of that program.
#
# Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --avoid=close --avoid=dup --avoid=fchdir --avoid=fstat --avoid=malloc-posix --avoid=msvc-inval --avoid=msvc-nothrow --avoid=open --avoid=openat-die --avoid=opendir --avoid=raise --avoid=save-cwd --avoid=select --avoid=sigprocmask --avoid=threadlib --makefile-name=gnulib.mk --conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca-opt byteswap c-ctype c-strcase careadlinkat close-stream count-one-bits count-trailing-zeros crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512 dtoastr dtotimespec dup2 environ execinfo faccessat fcntl fcntl-h fdatasync fdopendir filemode fstatat fsync getloadavg getopt-gnu gettime gettimeofday intprops largefile lstat manywarnings memrchr mkostemp mktime pipe2 pselect pthread_sigmask putenv qacl readlink readlinkat sig2str socklen stat-time stdalign stdarg stdbool stdio strftime strtoimax strtoumax symlink sys_stat sys_time time timer-time timespec-add timespec-sub unsetenv update-copyright utimens warnings
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --avoid=close --avoid=dup --avoid=fchdir --avoid=fstat --avoid=malloc-posix --avoid=msvc-inval --avoid=msvc-nothrow --avoid=open --avoid=openat-die --avoid=opendir --avoid=raise --avoid=save-cwd --avoid=select --avoid=sigprocmask --avoid=stdarg --avoid=stdbool --avoid=threadlib --makefile-name=gnulib.mk --conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca-opt byteswap c-ctype c-strcase careadlinkat close-stream count-one-bits count-trailing-zeros crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512 dtoastr dtotimespec dup2 environ execinfo faccessat fcntl fcntl-h fdatasync fdopendir filemode fstatat fsync getloadavg getopt-gnu gettime gettimeofday intprops largefile lstat manywarnings memrchr mkostemp mktime pipe2 pselect pthread_sigmask putenv qacl readlink readlinkat sig2str socklen stat-time stdalign stdio strftime strtoimax strtoumax symlink sys_stat sys_time time timer-time timespec-add timespec-sub unsetenv update-copyright utimens warnings
MOSTLYCLEANFILES += core *.stackdump
## end gnulib module stdalign
-## begin gnulib module stdarg
-
-BUILT_SOURCES += $(STDARG_H)
-
-# We need the following in order to create <stdarg.h> when the system
-# doesn't have one that works with the given compiler.
-if GL_GENERATE_STDARG_H
-stdarg.h: stdarg.in.h $(top_builddir)/config.status
- $(AM_V_GEN)rm -f $@-t $@ && \
- { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
- sed -e 's|@''GUARD_PREFIX''@|GL|g' \
- -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
- -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
- -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
- -e 's|@''NEXT_STDARG_H''@|$(NEXT_STDARG_H)|g' \
- < $(srcdir)/stdarg.in.h; \
- } > $@-t && \
- mv $@-t $@
-else
-stdarg.h: $(top_builddir)/config.status
- rm -f $@
-endif
-MOSTLYCLEANFILES += stdarg.h stdarg.h-t
-
-EXTRA_DIST += stdarg.in.h
-
-## end gnulib module stdarg
-
-## begin gnulib module stdbool
-
-BUILT_SOURCES += $(STDBOOL_H)
-
-# We need the following in order to create <stdbool.h> when the system
-# doesn't have one that works.
-if GL_GENERATE_STDBOOL_H
-stdbool.h: stdbool.in.h $(top_builddir)/config.status
- $(AM_V_GEN)rm -f $@-t $@ && \
- { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
- sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool.in.h; \
- } > $@-t && \
- mv $@-t $@
-else
-stdbool.h: $(top_builddir)/config.status
- rm -f $@
-endif
-MOSTLYCLEANFILES += stdbool.h stdbool.h-t
-
-EXTRA_DIST += stdbool.in.h
-
-## end gnulib module stdbool
-
## begin gnulib module stddef
BUILT_SOURCES += $(STDDEF_H)
+++ /dev/null
-/* Substitute for and wrapper around <stdarg.h>.
- Copyright (C) 2008-2014 Free Software Foundation, Inc.
-
- This program 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, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, see <http://www.gnu.org/licenses/>. */
-
-#ifndef _@GUARD_PREFIX@_STDARG_H
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-/* The include_next requires a split double-inclusion guard. */
-#@INCLUDE_NEXT@ @NEXT_STDARG_H@
-
-#ifndef _@GUARD_PREFIX@_STDARG_H
-#define _@GUARD_PREFIX@_STDARG_H
-
-#ifndef va_copy
-# define va_copy(a,b) ((a) = (b))
-#endif
-
-#endif /* _@GUARD_PREFIX@_STDARG_H */
-#endif /* _@GUARD_PREFIX@_STDARG_H */
+++ /dev/null
-/* Copyright (C) 2001-2003, 2006-2014 Free Software Foundation, Inc.
- Written by Bruno Haible <haible@clisp.cons.org>, 2001.
-
- This program 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, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, see <http://www.gnu.org/licenses/>. */
-
-#ifndef _GL_STDBOOL_H
-#define _GL_STDBOOL_H
-
-/* ISO C 99 <stdbool.h> for platforms that lack it. */
-
-/* Usage suggestions:
-
- Programs that use <stdbool.h> should be aware of some limitations
- and standards compliance issues.
-
- Standards compliance:
-
- - <stdbool.h> must be #included before 'bool', 'false', 'true'
- can be used.
-
- - You cannot assume that sizeof (bool) == 1.
-
- - Programs should not undefine the macros bool, true, and false,
- as C99 lists that as an "obsolescent feature".
-
- Limitations of this substitute, when used in a C89 environment:
-
- - <stdbool.h> must be #included before the '_Bool' type can be used.
-
- - You cannot assume that _Bool is a typedef; it might be a macro.
-
- - Bit-fields of type 'bool' are not supported. Portable code
- should use 'unsigned int foo : 1;' rather than 'bool foo : 1;'.
-
- - In C99, casts and automatic conversions to '_Bool' or 'bool' are
- performed in such a way that every nonzero value gets converted
- to 'true', and zero gets converted to 'false'. This doesn't work
- with this substitute. With this substitute, only the values 0 and 1
- give the expected result when converted to _Bool' or 'bool'.
-
- - C99 allows the use of (_Bool)0.0 in constant expressions, but
- this substitute cannot always provide this property.
-
- Also, it is suggested that programs use 'bool' rather than '_Bool';
- this isn't required, but 'bool' is more common. */
-
-
-/* 7.16. Boolean type and values */
-
-/* BeOS <sys/socket.h> already #defines false 0, true 1. We use the same
- definitions below, but temporarily we have to #undef them. */
-#if defined __BEOS__ && !defined __HAIKU__
-# include <OS.h> /* defines bool but not _Bool */
-# undef false
-# undef true
-#endif
-
-#ifdef __cplusplus
-# define _Bool bool
-# define bool bool
-#else
-# if defined __BEOS__ && !defined __HAIKU__
- /* A compiler known to have 'bool'. */
- /* If the compiler already has both 'bool' and '_Bool', we can assume they
- are the same types. */
-# if !@HAVE__BOOL@
-typedef bool _Bool;
-# endif
-# else
-# if !defined __GNUC__
- /* If @HAVE__BOOL@:
- Some HP-UX cc and AIX IBM C compiler versions have compiler bugs when
- the built-in _Bool type is used. See
- http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
- http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
- http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
- Similar bugs are likely with other compilers as well; this file
- wouldn't be used if <stdbool.h> was working.
- So we override the _Bool type.
- If !@HAVE__BOOL@:
- Need to define _Bool ourselves. As 'signed char' or as an enum type?
- Use of a typedef, with SunPRO C, leads to a stupid
- "warning: _Bool is a keyword in ISO C99".
- Use of an enum type, with IRIX cc, leads to a stupid
- "warning(1185): enumerated type mixed with another type".
- Even the existence of an enum type, without a typedef,
- "Invalid enumerator. (badenum)" with HP-UX cc on Tru64.
- The only benefit of the enum, debuggability, is not important
- with these compilers. So use 'signed char' and no enum. */
-# define _Bool signed char
-# else
- /* With this compiler, trust the _Bool type if the compiler has it. */
-# if !@HAVE__BOOL@
- /* For the sake of symbolic names in gdb, define true and false as
- enum constants, not only as macros.
- It is tempting to write
- typedef enum { false = 0, true = 1 } _Bool;
- so that gdb prints values of type 'bool' symbolically. But then
- values of type '_Bool' might promote to 'int' or 'unsigned int'
- (see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int'
- (see ISO C 99 6.3.1.1.(2)). So add a negative value to the
- enum; this ensures that '_Bool' promotes to 'int'. */
-typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool;
-# endif
-# endif
-# endif
-# define bool _Bool
-#endif
-
-/* The other macros must be usable in preprocessor directives. */
-#ifdef __cplusplus
-# define false false
-# define true true
-#else
-# define false 0
-# define true 1
-#endif
-
-#define __bool_true_false_are_defined 1
-
-#endif /* _GL_STDBOOL_H */
# Code from module stat:
# Code from module stat-time:
# Code from module stdalign:
- # Code from module stdarg:
- dnl Some compilers (e.g., AIX 5.3 cc) need to be in c99 mode
- dnl for the builtin va_copy to work. With Autoconf 2.60 or later,
- dnl gl_PROG_CC_C99 arranges for this. With older Autoconf gl_PROG_CC_C99
- dnl shouldn't hurt, though installers are on their own to set c99 mode.
- gl_PROG_CC_C99
- # Code from module stdbool:
# Code from module stddef:
# Code from module stdint:
# Code from module stdio:
gl_STAT_TIME
gl_STAT_BIRTHTIME
gl_STDALIGN_H
- gl_STDARG_H
- AM_STDBOOL_H
gl_STDDEF_H
gl_STDINT_H
gl_STDIO_H
lib/stat-time.h
lib/stat.c
lib/stdalign.in.h
- lib/stdarg.in.h
- lib/stdbool.in.h
lib/stddef.in.h
lib/stdint.in.h
lib/stdio.in.h
m4/stat-time.m4
m4/stat.m4
m4/stdalign.m4
- m4/stdarg.m4
- m4/stdbool.m4
m4/stddef_h.m4
m4/stdint.m4
m4/stdio_h.m4
+++ /dev/null
-# stdarg.m4 serial 6
-dnl Copyright (C) 2006, 2008-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Bruno Haible.
-dnl Provide a working va_copy in combination with <stdarg.h>.
-
-AC_DEFUN([gl_STDARG_H],
-[
- STDARG_H=''
- NEXT_STDARG_H='<stdarg.h>'
- AC_MSG_CHECKING([for va_copy])
- AC_CACHE_VAL([gl_cv_func_va_copy], [
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [[#include <stdarg.h>]],
- [[
-#ifndef va_copy
-void (*func) (va_list, va_list) = va_copy;
-#endif
- ]])],
- [gl_cv_func_va_copy=yes],
- [gl_cv_func_va_copy=no])])
- AC_MSG_RESULT([$gl_cv_func_va_copy])
- if test $gl_cv_func_va_copy = no; then
- dnl Provide a substitute.
- dnl Usually a simple definition in <config.h> is enough. Not so on AIX 5
- dnl with some versions of the /usr/vac/bin/cc compiler. It has an <stdarg.h>
- dnl which does '#undef va_copy', leading to a missing va_copy symbol. For
- dnl this platform, we use an <stdarg.h> substitute. But we cannot use this
- dnl approach on other platforms, because <stdarg.h> often defines only
- dnl preprocessor macros and gl_ABSOLUTE_HEADER, gl_CHECK_NEXT_HEADERS do
- dnl not work in this situation.
- AC_EGREP_CPP([vaccine],
- [#if defined _AIX && !defined __GNUC__
- AIX vaccine
- #endif
- ], [gl_aixcc=yes], [gl_aixcc=no])
- if test $gl_aixcc = yes; then
- dnl Provide a substitute <stdarg.h> file.
- STDARG_H=stdarg.h
- gl_NEXT_HEADERS([stdarg.h])
- dnl Fallback for the case when <stdarg.h> contains only macro definitions.
- if test "$gl_cv_next_stdarg_h" = '""'; then
- gl_cv_next_stdarg_h='"///usr/include/stdarg.h"'
- NEXT_STDARG_H="$gl_cv_next_stdarg_h"
- fi
- else
- dnl Provide a substitute in <config.h>, either __va_copy or as a simple
- dnl assignment.
- gl_CACHE_VAL_SILENT([gl_cv_func___va_copy], [
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [[#include <stdarg.h>]],
- [[
-#ifndef __va_copy
-error, bail out
-#endif
- ]])],
- [gl_cv_func___va_copy=yes],
- [gl_cv_func___va_copy=no])])
- if test $gl_cv_func___va_copy = yes; then
- AC_DEFINE([va_copy], [__va_copy],
- [Define as a macro for copying va_list variables.])
- else
- AH_VERBATIM([gl_VA_COPY], [/* A replacement for va_copy, if needed. */
-#define gl_va_copy(a,b) ((a) = (b))])
- AC_DEFINE([va_copy], [gl_va_copy],
- [Define as a macro for copying va_list variables.])
- fi
- fi
- fi
- AC_SUBST([STDARG_H])
- AM_CONDITIONAL([GL_GENERATE_STDARG_H], [test -n "$STDARG_H"])
- AC_SUBST([NEXT_STDARG_H])
-])
+++ /dev/null
-# Check for stdbool.h that conforms to C99.
-
-dnl Copyright (C) 2002-2006, 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-#serial 5
-
-# Prepare for substituting <stdbool.h> if it is not supported.
-
-AC_DEFUN([AM_STDBOOL_H],
-[
- AC_REQUIRE([AC_CHECK_HEADER_STDBOOL])
-
- # Define two additional variables used in the Makefile substitution.
-
- if test "$ac_cv_header_stdbool_h" = yes; then
- STDBOOL_H=''
- else
- STDBOOL_H='stdbool.h'
- fi
- AC_SUBST([STDBOOL_H])
- AM_CONDITIONAL([GL_GENERATE_STDBOOL_H], [test -n "$STDBOOL_H"])
-
- if test "$ac_cv_type__Bool" = yes; then
- HAVE__BOOL=1
- else
- HAVE__BOOL=0
- fi
- AC_SUBST([HAVE__BOOL])
-])
-
-# AM_STDBOOL_H will be renamed to gl_STDBOOL_H in the future.
-AC_DEFUN([gl_STDBOOL_H], [AM_STDBOOL_H])
-
-# This version of the macro is needed in autoconf <= 2.68.
-
-AC_DEFUN([AC_CHECK_HEADER_STDBOOL],
- [AC_CACHE_CHECK([for stdbool.h that conforms to C99],
- [ac_cv_header_stdbool_h],
- [AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [[
- #include <stdbool.h>
- #ifndef bool
- "error: bool is not defined"
- #endif
- #ifndef false
- "error: false is not defined"
- #endif
- #if false
- "error: false is not 0"
- #endif
- #ifndef true
- "error: true is not defined"
- #endif
- #if true != 1
- "error: true is not 1"
- #endif
- #ifndef __bool_true_false_are_defined
- "error: __bool_true_false_are_defined is not defined"
- #endif
-
- struct s { _Bool s: 1; _Bool t; } s;
-
- char a[true == 1 ? 1 : -1];
- char b[false == 0 ? 1 : -1];
- char c[__bool_true_false_are_defined == 1 ? 1 : -1];
- char d[(bool) 0.5 == true ? 1 : -1];
- /* See body of main program for 'e'. */
- char f[(_Bool) 0.0 == false ? 1 : -1];
- char g[true];
- char h[sizeof (_Bool)];
- char i[sizeof s.t];
- enum { j = false, k = true, l = false * true, m = true * 256 };
- /* The following fails for
- HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */
- _Bool n[m];
- char o[sizeof n == m * sizeof n[0] ? 1 : -1];
- char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
- /* Catch a bug in an HP-UX C compiler. See
- http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
- http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
- */
- _Bool q = true;
- _Bool *pq = &q;
- ]],
- [[
- bool e = &s;
- *pq |= q;
- *pq |= ! q;
- /* Refer to every declared value, to avoid compiler optimizations. */
- return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
- + !m + !n + !o + !p + !q + !pq);
- ]])],
- [ac_cv_header_stdbool_h=yes],
- [ac_cv_header_stdbool_h=no])])
- AC_CHECK_TYPES([_Bool])
-])
+2014-05-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ Assume C99 or later (Bug#17487).
+ * gnulib.mk: Remove stdarg and stdbool modules.
+
2014-05-16 Paul Eggert <eggert@cs.ucla.edu>
Don't require pkg-config when building from repository.
## end gnulib module stdalign
-## begin gnulib module stdarg
-
-BUILT_SOURCES += $(STDARG_H)
-
-# We need the following in order to create <stdarg.h> when the system
-# doesn't have one that works with the given compiler.
-if GL_GENERATE_STDARG_H
-stdarg.h: stdarg.in.h $(top_builddir)/config.status
- $(AM_V_GEN)rm -f $@-t $@ && \
- { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
- sed -e 's|@''GUARD_PREFIX''@|GL|g' \
- -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
- -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
- -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
- -e 's|@''NEXT_STDARG_H''@|$(NEXT_STDARG_H)|g' \
- < $(srcdir)/stdarg.in.h; \
- } > $@-t && \
- mv $@-t $@
-else
-stdarg.h: $(top_builddir)/config.status
- rm -f $@
-endif
-MOSTLYCLEANFILES += stdarg.h stdarg.h-t
-
-EXTRA_DIST += stdarg.in.h
-
-## end gnulib module stdarg
-
-## begin gnulib module stdbool
-
-BUILT_SOURCES += $(STDBOOL_H)
-
-# We need the following in order to create <stdbool.h> when the system
-# doesn't have one that works.
-if GL_GENERATE_STDBOOL_H
-stdbool.h: stdbool.in.h $(top_builddir)/config.status
- $(AM_V_GEN)rm -f $@-t $@ && \
- { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
- sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool.in.h; \
- } > $@-t && \
- mv $@-t $@
-else
-stdbool.h: $(top_builddir)/config.status
- rm -f $@
-endif
-MOSTLYCLEANFILES += stdbool.h stdbool.h-t
-
-EXTRA_DIST += stdbool.in.h
-
-## end gnulib module stdbool
-
## begin gnulib module stddef
BUILT_SOURCES += $(STDDEF_H)
+2014-05-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ Assume C99 or later (Bug#17487).
+ * bytecode.c (B__dummy__): Remove.
+ * conf_post.h (bool_bf) [!NS_IMPL_GNUSTEP]: Use bool.
+ (FLEXIBLE_ARRAY_MEMBER): Now always empty.
+ * dbusbind.c (XD_DEBUG_MESSAGE) [!DBUS_DEBUG]:
+ * regex.c (DEBUG_PRINT): Assume varargs macros.
+ * lisp.h (DEFUN_FUNCTION_INIT): Remove. All uses now assume C99.
+
2014-05-17 Fabrice Popineau <fabrice.popineau@gmail.com>
* buffer.c (init_buffer) [USE_MMAP_FOR_BUFFERS]: Always map new
Bscan_buffer = 0153, /* No longer generated as of v18. */
Bset_mark = 0163, /* this loser is no longer generated as of v18 */
#endif
-
- B__dummy__ = 0 /* Pacify C89. */
};
/* Whether to maintain a `top' and `bottom' field in the stack frame. */
#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
+/* 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;
/* 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
-# define FLEXIBLE_ARRAY_MEMBER 1
-#endif
+ and allocate (offsetof (struct s, name) + N * sizeof (t)) bytes.
+
+ This macro used to expand to something different on pre-C99 compilers.
+ FIXME: Remove it, and remove all uses. */
+#define FLEXIBLE_ARRAY_MEMBER
/* Use this to suppress gcc's `...may be used before initialized' warnings. */
#ifdef lint
} while (0)
#else /* !DBUS_DEBUG */
-# if __STDC_VERSION__ < 199901
-# define XD_DEBUG_MESSAGE (void) /* Pre-C99 compilers cannot debug. */
-# else
-# define XD_DEBUG_MESSAGE(...) \
+# define XD_DEBUG_MESSAGE(...) \
do { \
if (!NILP (Vdbus_debug)) \
{ \
message ("%s: %s", __func__, s); \
} \
} while (0)
-# endif
# define XD_DEBUG_VALID_LISP_OBJECT_P(object)
#endif
static void sort_args (int argc, char **argv);
static void syms_of_emacs (void);
-/* C89 needs each string be at most 509 characters, so the usage
+/* C99 needs each string to be at most 4095 characters, and the usage
strings below are split to not overflow this limit. */
static char const *const usage_message[] =
{ "\
minargs, maxargs, lname, intspec, 0}; \
Lisp_Object fnname
#else /* not _MSC_VER */
-# if __STDC_VERSION__ < 199901
-# define DEFUN_FUNCTION_INIT(fnname, maxargs) (Lisp_Object (*) (void)) fnname
-# else
-# define DEFUN_FUNCTION_INIT(fnname, maxargs) .a ## maxargs = fnname
-# endif
#define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
static struct Lisp_Subr alignas (GCALIGNMENT) sname = \
{ { PVEC_SUBR << PSEUDOVECTOR_AREA_BITS }, \
- { DEFUN_FUNCTION_INIT (fnname, maxargs) }, \
+ { .a ## maxargs = fnname }, \
minargs, maxargs, lname, intspec, 0}; \
Lisp_Object fnname
#endif
# define assert(e)
# define DEBUG_STATEMENT(e)
-# if __STDC_VERSION__ < 199901L
-# define DEBUG_COMPILES_ARGUMENTS
-# define DEBUG_PRINT /* 'DEBUG_PRINT (x, y)' discards X and Y. */ (void)
-# else
-# define DEBUG_PRINT(...)
-# endif
+# define DEBUG_PRINT(...)
# define DEBUG_PRINT_COMPILED_PATTERN(p, s, e)
# define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2)
HCoop / bpt / emacs.git / commitdiff