# Attempt to guess a canonical system name.
# Copyright 1992-2020 Free Software Foundation, Inc.
-timestamp='2020-07-12'
+timestamp='2020-08-17'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# If there is a compiler, see if it is configured for 64-bit objects.
# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
# This test works for both compilers.
- if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+ if test "$CC_FOR_BUILD" != no_compiler_found; then
if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
grep IS_64BIT_ARCH >/dev/null
AViiON:dgux:*:*)
# DG/UX returns AViiON for all architectures
UNAME_PROCESSOR=`/usr/bin/uname -p`
- if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ]
+ if test "$UNAME_PROCESSOR" = mc88100 || test "$UNAME_PROCESSOR" = mc88110
then
- if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \
- [ "$TARGET_BINARY_INTERFACE"x = x ]
+ if test "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx || \
+ test "$TARGET_BINARY_INTERFACE"x = x
then
echo m88k-dg-dgux"$UNAME_RELEASE"
else
echo i386-ibm-aix
exit ;;
ia64:AIX:*:*)
- if [ -x /usr/bin/oslevel ] ; then
+ if test -x /usr/bin/oslevel ; then
IBM_REV=`/usr/bin/oslevel`
else
IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
else
IBM_ARCH=powerpc
fi
- if [ -x /usr/bin/lslpp ] ; then
+ if test -x /usr/bin/lslpp ; then
IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
else
9000/31?) HP_ARCH=m68000 ;;
9000/[34]??) HP_ARCH=m68k ;;
9000/[678][0-9][0-9])
- if [ -x /usr/bin/getconf ]; then
+ if test -x /usr/bin/getconf; then
sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
case "$sc_cpu_version" in
esac ;;
esac
fi
- if [ "$HP_ARCH" = "" ]; then
+ if test "$HP_ARCH" = ""; then
set_cc_for_build
sed 's/^ //' << EOF > "$dummy.c"
test -z "$HP_ARCH" && HP_ARCH=hppa
fi ;;
esac
- if [ "$HP_ARCH" = hppa2.0w ]
+ if test "$HP_ARCH" = hppa2.0w
then
set_cc_for_build
echo hppa1.0-hp-osf
exit ;;
i*86:OSF1:*:*)
- if [ -x /usr/sbin/sysversion ] ; then
+ if test -x /usr/sbin/sysversion ; then
echo "$UNAME_MACHINE"-unknown-osf1mk
else
echo "$UNAME_MACHINE"-unknown-osf1
x86_64:Linux:*:*)
set_cc_for_build
LIBCABI=$LIBC
- if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+ if test "$CC_FOR_BUILD" != no_compiler_found; then
if (echo '#ifdef __ILP32__'; echo IS_X32; echo '#endif') | \
(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
grep IS_X32 >/dev/null
echo mips-sony-newsos6
exit ;;
R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
- if [ -d /usr/nec ]; then
+ if test -d /usr/nec; then
echo mips-nec-sysv"$UNAME_RELEASE"
else
echo mips-unknown-sysv"$UNAME_RELEASE"
else
set_cc_for_build
fi
- if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+ if test "$CC_FOR_BUILD" != no_compiler_found; then
if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
grep IS_64BIT_ARCH >/dev/null
# Configuration validation subroutine script.
# Copyright 1992-2020 Free Software Foundation, Inc.
-timestamp='2020-07-10'
+timestamp='2020-08-17'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# Decode manufacturer-specific aliases for certain operating systems.
-if [ x$basic_os != x ]
+if test x$basic_os != x
then
# First recognize some ad-hoc caes, or perhaps split kernel-os, or else just
#include "allocator.h"
-/* Assuming the current directory is FD, get the symbolic link value
- of FILENAME as a null-terminated string and put it into a buffer.
- If FD is AT_FDCWD, FILENAME is interpreted relative to the current
- working directory, as in openat.
-
- If the link is small enough to fit into BUFFER put it there.
- BUFFER's size is BUFFER_SIZE, and BUFFER can be null
- if BUFFER_SIZE is zero.
-
- If the link is not small, put it into a dynamically allocated
- buffer managed by ALLOC. It is the caller's responsibility to free
- the returned value if it is nonnull and is not BUFFER. A null
- ALLOC stands for the standard allocator.
-
- The PREADLINKAT function specifies how to read links. It operates
- like POSIX readlinkat()
- <https://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>
- but can assume that its first argument is the same as FD.
-
- If successful, return the buffer address; otherwise return NULL and
- set errno. */
-
-char *
-careadlinkat (int fd, char const *filename,
+enum { STACK_BUF_SIZE = 1024 };
+
+/* Act like careadlinkat (see below), with an additional argument
+ STACK_BUF that can be used as temporary storage.
+
+ If GCC_LINT is defined, do not inline this function with GCC 10.1
+ and later, to avoid creating a pointer to the stack that GCC
+ -Wreturn-local-addr incorrectly complains about. See:
+ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93644
+ Although the noinline attribute can hurt performance a bit, no better way
+ to pacify GCC is known; even an explicit #pragma does not pacify GCC.
+ When the GCC bug is fixed this workaround should be limited to the
+ broken GCC versions. */
+#if (defined GCC_LINT || defined lint) && _GL_GNUC_PREREQ (10, 1)
+__attribute__ ((__noinline__))
+#endif
+static char *
+readlink_stk (int fd, char const *filename,
char *buffer, size_t buffer_size,
struct allocator const *alloc,
- ssize_t (*preadlinkat) (int, char const *, char *, size_t))
+ ssize_t (*preadlinkat) (int, char const *, char *, size_t),
+ char stack_buf[STACK_BUF_SIZE])
{
char *buf;
size_t buf_size;
size_t buf_size_max =
SSIZE_MAX < SIZE_MAX ? (size_t) SSIZE_MAX + 1 : SIZE_MAX;
- char stack_buf[1024];
-
-#if (defined GCC_LINT || defined lint) && _GL_GNUC_PREREQ (10, 1)
- /* Pacify preadlinkat without creating a pointer to the stack
- that a broken gcc -Wreturn-local-addr would cry wolf about. See:
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95044
- This workaround differs from the mainline code, but
- no other way to pacify GCC 10.1.0 is known; even an explicit
- #pragma does not pacify GCC. When the GCC bug is fixed this
- workaround should be limited to the broken GCC versions. */
-# define WORK_AROUND_GCC_BUG_95044
-#endif
if (! alloc)
alloc = &stdlib_allocator;
if (!buffer)
{
-#ifdef WORK_AROUND_GCC_BUG_95044
- buffer = alloc->allocate (sizeof stack_buf);
-#else
- /* Allocate the initial buffer on the stack. This way, in the
- common case of a symlink of small size, we get away with a
- single small malloc() instead of a big malloc() followed by a
- shrinking realloc(). */
buffer = stack_buf;
-#endif
- buffer_size = sizeof stack_buf;
+ buffer_size = STACK_BUF_SIZE;
}
buf = buffer;
errno = ENOMEM;
return NULL;
}
+
+
+/* Assuming the current directory is FD, get the symbolic link value
+ of FILENAME as a null-terminated string and put it into a buffer.
+ If FD is AT_FDCWD, FILENAME is interpreted relative to the current
+ working directory, as in openat.
+
+ If the link is small enough to fit into BUFFER put it there.
+ BUFFER's size is BUFFER_SIZE, and BUFFER can be null
+ if BUFFER_SIZE is zero.
+
+ If the link is not small, put it into a dynamically allocated
+ buffer managed by ALLOC. It is the caller's responsibility to free
+ the returned value if it is nonnull and is not BUFFER. A null
+ ALLOC stands for the standard allocator.
+
+ The PREADLINKAT function specifies how to read links. It operates
+ like POSIX readlinkat()
+ <https://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>
+ but can assume that its first argument is the same as FD.
+
+ If successful, return the buffer address; otherwise return NULL and
+ set errno. */
+
+char *
+careadlinkat (int fd, char const *filename,
+ char *buffer, size_t buffer_size,
+ struct allocator const *alloc,
+ ssize_t (*preadlinkat) (int, char const *, char *, size_t))
+{
+ /* Allocate the initial buffer on the stack. This way, in the
+ common case of a symlink of small size, we get away with a
+ single small malloc instead of a big malloc followed by a
+ shrinking realloc.
+
+ If GCC -Wreturn-local-addr warns about this buffer, the warning
+ is bogus; see readlink_stk. */
+ char stack_buf[STACK_BUF_SIZE];
+ return readlink_stk (fd, filename, buffer, buffer_size, alloc,
+ preadlinkat, stack_buf);
+}
GNULIB_SELECT = @GNULIB_SELECT@
GNULIB_SETENV = @GNULIB_SETENV@
GNULIB_SETHOSTNAME = @GNULIB_SETHOSTNAME@
+GNULIB_SIGABBREV_NP = @GNULIB_SIGABBREV_NP@
GNULIB_SIGACTION = @GNULIB_SIGACTION@
GNULIB_SIGNAL_H_SIGPIPE = @GNULIB_SIGNAL_H_SIGPIPE@
GNULIB_SIGPROCMASK = @GNULIB_SIGPROCMASK@
HAVE_SETENV = @HAVE_SETENV@
HAVE_SETHOSTNAME = @HAVE_SETHOSTNAME@
HAVE_SETSTATE = @HAVE_SETSTATE@
+HAVE_SIGABBREV_NP = @HAVE_SIGABBREV_NP@
HAVE_SIGACTION = @HAVE_SIGACTION@
HAVE_SIGHANDLER_T = @HAVE_SIGHANDLER_T@
HAVE_SIGINFO_T = @HAVE_SIGINFO_T@
-e 's/@''GNULIB_STRTOK_R''@/$(GNULIB_STRTOK_R)/g' \
-e 's/@''GNULIB_STRERROR''@/$(GNULIB_STRERROR)/g' \
-e 's/@''GNULIB_STRERROR_R''@/$(GNULIB_STRERROR_R)/g' \
+ -e 's/@''GNULIB_SIGABBREV_NP''@/$(GNULIB_SIGABBREV_NP)/g' \
-e 's/@''GNULIB_STRSIGNAL''@/$(GNULIB_STRSIGNAL)/g' \
-e 's/@''GNULIB_STRVERSCMP''@/$(GNULIB_STRVERSCMP)/g' \
< $(srcdir)/string.in.h | \
-e 's|@''HAVE_STRCASESTR''@|$(HAVE_STRCASESTR)|g' \
-e 's|@''HAVE_DECL_STRTOK_R''@|$(HAVE_DECL_STRTOK_R)|g' \
-e 's|@''HAVE_DECL_STRERROR_R''@|$(HAVE_DECL_STRERROR_R)|g' \
+ -e 's|@''HAVE_SIGABBREV_NP''@|$(HAVE_SIGABBREV_NP)|g' \
-e 's|@''HAVE_DECL_STRSIGNAL''@|$(HAVE_DECL_STRSIGNAL)|g' \
-e 's|@''HAVE_STRVERSCMP''@|$(HAVE_STRVERSCMP)|g' \
-e 's|@''REPLACE_MEMCHR''@|$(REPLACE_MEMCHR)|g' \
#undef _Alignof
/* GCC releases before GCC 4.9 had a bug in _Alignof. See GCC bug 52023
- <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>. */
+ <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.
+ clang versions < 8.0.0 have the same bug. */
#if (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112 \
|| (defined __GNUC__ && __GNUC__ < 4 + (__GNUC_MINOR__ < 9) \
- && !defined __clang__))
+ && !defined __clang__) \
+ || (defined __clang__ && __clang_major__ < 8))
# ifdef __cplusplus
# if 201103 <= __cplusplus
# define _Alignof(type) alignof (type)
# endif
#endif
+/* Return an abbreviation string for the signal number SIG. */
+#if @GNULIB_SIGABBREV_NP@
+# if ! @HAVE_SIGABBREV_NP@
+_GL_FUNCDECL_SYS (sigabbrev_np, const char *, (int sig));
+# endif
+_GL_CXXALIAS_SYS (sigabbrev_np, const char *, (int sig));
+_GL_CXXALIASWARN (sigabbrev_np);
+#elif defined GNULIB_POSIXCHECK
+# undef sigabbrev_np
+# if HAVE_RAW_DECL_SIGABBREV_NP
+_GL_WARN_ON_USE (sigabbrev_np, "sigabbrev_np is unportable - "
+ "use gnulib module sigabbrev_np for portability");
+# endif
+#endif
+
#if @GNULIB_STRSIGNAL@
# if @REPLACE_STRSIGNAL@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
set X $ac_compile
ac_compiler=$[2]
for ac_option in --version -v -V -qversion -version; do
- m4_ifdef([_AC_DO_LIMIT],[_AC_DO_LIMIT],[_AC_DO])([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD])
+ _AC_DO_LIMIT([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD])
done
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
set X $ac_compile
ac_compiler=$[2]
for ac_option in --version -v -V -qversion; do
- m4_ifdef([_AC_DO_LIMIT],[_AC_DO_LIMIT],[_AC_DO])([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD])
+ _AC_DO_LIMIT([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD])
done
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
-# serial 24
+# serial 25
# Written by Paul Eggert.
]],
[ffsl ffsll memmem mempcpy memrchr rawmemchr stpcpy stpncpy strchrnul
strdup strncat strndup strnlen strpbrk strsep strcasestr strtok_r
- strerror_r strsignal strverscmp])
+ strerror_r sigabbrev_np strsignal strverscmp])
AC_REQUIRE([AC_C_RESTRICT])
])
GNULIB_MBSTOK_R=0; AC_SUBST([GNULIB_MBSTOK_R])
GNULIB_STRERROR=0; AC_SUBST([GNULIB_STRERROR])
GNULIB_STRERROR_R=0; AC_SUBST([GNULIB_STRERROR_R])
+ GNULIB_SIGABBREV_NP=0;AC_SUBST([GNULIB_SIGABBREV_NP])
GNULIB_STRSIGNAL=0; AC_SUBST([GNULIB_STRSIGNAL])
GNULIB_STRVERSCMP=0; AC_SUBST([GNULIB_STRVERSCMP])
HAVE_MBSLEN=0; AC_SUBST([HAVE_MBSLEN])
HAVE_STRCASESTR=1; AC_SUBST([HAVE_STRCASESTR])
HAVE_DECL_STRTOK_R=1; AC_SUBST([HAVE_DECL_STRTOK_R])
HAVE_DECL_STRERROR_R=1; AC_SUBST([HAVE_DECL_STRERROR_R])
+ HAVE_SIGABBREV_NP=1; AC_SUBST([HAVE_SIGABBREV_NP])
HAVE_DECL_STRSIGNAL=1; AC_SUBST([HAVE_DECL_STRSIGNAL])
HAVE_STRVERSCMP=1; AC_SUBST([HAVE_STRVERSCMP])
REPLACE_MEMCHR=0; AC_SUBST([REPLACE_MEMCHR])
projects / emacs.git / commitdiff