4a626d0a0f
2015-08-24 Pedro Alves <palves@redhat.com> * gnulib/update-gnulib.sh (GNULIB_COMMIT_SHA1): Set to 1029a8112290f6eee9d7878a391c49db42c999bd. * gnulib/configure, gnulib/config.in, gnulib/aclocal.m4: Regenerate. * gnulib/import/Makefile.am: Update. * gnulib/import/Makefile.in: Update. * gnulib/import/alloca.in.h: Update. * gnulib/import/basename-lgpl.c: Update. * gnulib/import/canonicalize-lgpl.c: Update. * gnulib/import/config.charset: Update. * gnulib/import/dirent.in.h: Update. * gnulib/import/dirfd.c: Update. * gnulib/import/dirname-lgpl.c: Update. * gnulib/import/dirname.h: Update. * gnulib/import/dosname.h: Update. * gnulib/import/errno.in.h: Update. * gnulib/import/extra/snippet/arg-nonnull.h: Update. * gnulib/import/extra/snippet/c++defs.h: Update. * gnulib/import/extra/snippet/warn-on-use.h: Update. * gnulib/import/extra/update-copyright: Update. * gnulib/import/float+.h: Update. * gnulib/import/float.c: Update. * gnulib/import/float.in.h: Update. * gnulib/import/fnmatch.c: Update. * gnulib/import/fnmatch.in.h: Update. * gnulib/import/fnmatch_loop.c: Update. * gnulib/import/fpucw.h: Update. * gnulib/import/frexp.c: Update. * gnulib/import/frexpl.c: Update. * gnulib/import/gettimeofday.c: Update. * gnulib/import/inttypes.in.h: Update. * gnulib/import/isnan.c: Update. * gnulib/import/isnand-nolibm.h: Update. * gnulib/import/isnand.c: Update. * gnulib/import/isnanl-nolibm.h: Update. * gnulib/import/isnanl.c: Update. * gnulib/import/itold.c: Update. * gnulib/import/localcharset.c: Update. * gnulib/import/localcharset.h: Update. * gnulib/import/lstat.c: Update. * gnulib/import/m4/00gnulib.m4: Update. * gnulib/import/m4/absolute-header.m4: Update. * gnulib/import/m4/alloca.m4: Update. * gnulib/import/m4/canonicalize.m4: Update. * gnulib/import/m4/codeset.m4: Update. * gnulib/import/m4/configmake.m4: Update. * gnulib/import/m4/dirent_h.m4: Update. * gnulib/import/m4/dirfd.m4: Update. * gnulib/import/m4/dirname.m4: Update. * gnulib/import/m4/double-slash-root.m4: Update. * gnulib/import/m4/eealloc.m4: Update. * gnulib/import/m4/errno_h.m4: Update. * gnulib/import/m4/exponentd.m4: Update. * gnulib/import/m4/exponentl.m4: Update. * gnulib/import/m4/extensions.m4: Update. * gnulib/import/m4/extern-inline.m4: Update. * gnulib/import/m4/fcntl-o.m4: Update. * gnulib/import/m4/float_h.m4: Update. * gnulib/import/m4/fnmatch.m4: Update. * gnulib/import/m4/fpieee.m4: Update. * gnulib/import/m4/frexp.m4: Update. * gnulib/import/m4/frexpl.m4: Update. * gnulib/import/m4/gettimeofday.m4: Update. * gnulib/import/m4/glibc21.m4: Update. * gnulib/import/m4/gnulib-cache.m4: Update. * gnulib/import/m4/gnulib-common.m4: Update. * gnulib/import/m4/gnulib-comp.m4: Update. * gnulib/import/m4/gnulib-tool.m4: Update. * gnulib/import/m4/include_next.m4: Update. * gnulib/import/m4/inttypes-pri.m4: Update. * gnulib/import/m4/inttypes.m4: Update. * gnulib/import/m4/isnand.m4: Update. * gnulib/import/m4/isnanl.m4: Update. * gnulib/import/m4/largefile.m4: Update. * gnulib/import/m4/localcharset.m4: Update. * gnulib/import/m4/locale-fr.m4: Update. * gnulib/import/m4/locale-ja.m4: Update. * gnulib/import/m4/locale-zh.m4: Update. * gnulib/import/m4/longlong.m4: Update. * gnulib/import/m4/lstat.m4: Update. * gnulib/import/m4/malloc.m4: Update. * gnulib/import/m4/malloca.m4: Update. * gnulib/import/m4/math_h.m4: Update. * gnulib/import/m4/mbrtowc.m4: Update. * gnulib/import/m4/mbsinit.m4: Update. * gnulib/import/m4/mbsrtowcs.m4: Update. * gnulib/import/m4/mbstate_t.m4: Update. * gnulib/import/m4/memchr.m4: Update. * gnulib/import/m4/memmem.m4: Update. * gnulib/import/m4/mmap-anon.m4: Update. * gnulib/import/m4/multiarch.m4: Update. * gnulib/import/m4/nocrash.m4: Update. * gnulib/import/m4/off_t.m4: Update. * gnulib/import/m4/pathmax.m4: Update. * gnulib/import/m4/readlink.m4: Update. * gnulib/import/m4/rename.m4: Update. * gnulib/import/m4/rmdir.m4: Update. * gnulib/import/m4/ssize_t.m4: Update. * gnulib/import/m4/stat.m4: Update. * gnulib/import/m4/stdbool.m4: Update. * gnulib/import/m4/stddef_h.m4: Update. * gnulib/import/m4/stdint.m4: Update. * gnulib/import/m4/stdio_h.m4: Update. * gnulib/import/m4/stdlib_h.m4: Update. * gnulib/import/m4/string_h.m4: Update. * gnulib/import/m4/strstr.m4: Update. * gnulib/import/m4/strtok_r.m4: Update. * gnulib/import/m4/sys_socket_h.m4: Update. * gnulib/import/m4/sys_stat_h.m4: Update. * gnulib/import/m4/sys_time_h.m4: Update. * gnulib/import/m4/sys_types_h.m4: Update. * gnulib/import/m4/time_h.m4: Update. * gnulib/import/m4/unistd_h.m4: Update. * gnulib/import/m4/warn-on-use.m4: Update. * gnulib/import/m4/wchar_h.m4: Update. * gnulib/import/m4/wchar_t.m4: Update. * gnulib/import/m4/wctype_h.m4: Update. * gnulib/import/m4/wint_t.m4: Update. * gnulib/import/malloc.c: Update. * gnulib/import/malloca.c: Update. * gnulib/import/malloca.h: Update. * gnulib/import/math.in.h: Update. * gnulib/import/mbrtowc.c: Update. * gnulib/import/mbsinit.c: Update. * gnulib/import/mbsrtowcs-impl.h: Update. * gnulib/import/mbsrtowcs-state.c: Update. * gnulib/import/mbsrtowcs.c: Update. * gnulib/import/memchr.c: Update. * gnulib/import/memmem.c: Update. * gnulib/import/pathmax.h: Update. * gnulib/import/readlink.c: Update. * gnulib/import/ref-add.sin: Update. * gnulib/import/ref-del.sin: Update. * gnulib/import/rename.c: Update. * gnulib/import/rmdir.c: Update. * gnulib/import/same-inode.h: Update. * gnulib/import/stat.c: Update. * gnulib/import/stdbool.in.h: Update. * gnulib/import/stddef.in.h: Update. * gnulib/import/stdint.in.h: Update. * gnulib/import/stdio.c: Update. * gnulib/import/stdio.in.h: Update. * gnulib/import/stdlib.in.h: Update. * gnulib/import/str-two-way.h: Update. * gnulib/import/streq.h: Update. * gnulib/import/string.in.h: Update. * gnulib/import/stripslash.c: Update. * gnulib/import/strnlen1.c: Update. * gnulib/import/strnlen1.h: Update. * gnulib/import/strstr.c: Update. * gnulib/import/strtok_r.c: Update. * gnulib/import/sys_stat.in.h: Update. * gnulib/import/sys_time.in.h: Update. * gnulib/import/sys_types.in.h: Update. * gnulib/import/time.in.h: Update. * gnulib/import/unistd.in.h: Update. * gnulib/import/verify.h: Update. * gnulib/import/wchar.in.h: Update. * gnulib/import/wctype.in.h: Update. * gnulib/import/gettimeofday.c: New file. * gnulib/import/m4/absolute-header.m4: New file. * gnulib/import/m4/gettimeofday.m4: New file. * gnulib/import/m4/sys_socket_h.m4: New file. * gnulib/import/m4/sys_time_h.m4: New file. * gnulib/import/stdio.c: Delete file. * gnulib/import/sys_time.in.h: New file.
55 lines
2 KiB
Text
55 lines
2 KiB
Text
# mmap-anon.m4 serial 10
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dnl Copyright (C) 2005, 2007, 2009-2015 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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# Detect how mmap can be used to create anonymous (not file-backed) memory
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# mappings.
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# - On Linux, AIX, OSF/1, Solaris, Cygwin, Interix, Haiku, both MAP_ANONYMOUS
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# and MAP_ANON exist and have the same value.
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# - On HP-UX, only MAP_ANONYMOUS exists.
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# - On Mac OS X, FreeBSD, NetBSD, OpenBSD, only MAP_ANON exists.
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# - On IRIX, neither exists, and a file descriptor opened to /dev/zero must be
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# used.
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AC_DEFUN([gl_FUNC_MMAP_ANON],
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[
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dnl Persuade glibc <sys/mman.h> to define MAP_ANONYMOUS.
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AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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# Check for mmap(). Don't use AC_FUNC_MMAP, because it checks too much: it
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# fails on HP-UX 11, because MAP_FIXED mappings do not work. But this is
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# irrelevant for anonymous mappings.
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AC_CHECK_FUNC([mmap], [gl_have_mmap=yes], [gl_have_mmap=no])
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# Try to allow MAP_ANONYMOUS.
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gl_have_mmap_anonymous=no
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if test $gl_have_mmap = yes; then
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AC_MSG_CHECKING([for MAP_ANONYMOUS])
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AC_EGREP_CPP([I cannot identify this map], [
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#include <sys/mman.h>
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#ifdef MAP_ANONYMOUS
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I cannot identify this map
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#endif
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],
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[gl_have_mmap_anonymous=yes])
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if test $gl_have_mmap_anonymous != yes; then
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AC_EGREP_CPP([I cannot identify this map], [
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#include <sys/mman.h>
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#ifdef MAP_ANON
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I cannot identify this map
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#endif
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],
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[AC_DEFINE([MAP_ANONYMOUS], [MAP_ANON],
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[Define to a substitute value for mmap()'s MAP_ANONYMOUS flag.])
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gl_have_mmap_anonymous=yes])
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fi
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AC_MSG_RESULT([$gl_have_mmap_anonymous])
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if test $gl_have_mmap_anonymous = yes; then
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AC_DEFINE([HAVE_MAP_ANONYMOUS], [1],
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[Define to 1 if mmap()'s MAP_ANONYMOUS flag is available after including
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config.h and <sys/mman.h>.])
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fi
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fi
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])
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