93f6e21759
* lib/Makefile.am, lib/alloca.c, lib/alloca.in.h, lib/argp-ba.c, lib/argp-eexst.c, lib/argp-fmtstream.c, lib/argp-fmtstream.h, lib/argp-fs-xinl.c, lib/argp-help.c, lib/argp-namefrob.h, lib/argp-parse.c, lib/argp-pin.c, lib/argp-pv.c, lib/argp-pvh.c, lib/argp-xinl.c, lib/argp.h, lib/asnprintf.c, lib/basename-lgpl.c, lib/dirname-lgpl.c, lib/dirname.h, lib/dosname.h, lib/errno.in.h, lib/float+.h, lib/float.c, lib/float.in.h, lib/getopt.c, lib/getopt.in.h, lib/getopt1.c, lib/getopt_int.h, lib/gettext.h, lib/intprops.h, lib/itold.c, lib/malloc.c, lib/memchr.c, lib/memchr.valgrind, lib/mempcpy.c, lib/printf-args.c, lib/printf-args.h, lib/printf-parse.c, lib/printf-parse.h, lib/rawmemchr.c, lib/rawmemchr.valgrind, lib/size_max.h, lib/sleep.c, lib/stdalign.in.h, lib/stdbool.in.h, lib/stddef.in.h, lib/stdint.in.h, lib/stdio.in.h, lib/stdlib.in.h, lib/strcasecmp.c, lib/strchrnul.c, lib/strchrnul.valgrind, lib/strerror-override.c, lib/strerror-override.h, lib/strerror.c, lib/string.in.h, lib/strings.in.h, lib/stripslash.c, lib/strncasecmp.c, lib/strndup.c, lib/strnlen.c, lib/sys_types.in.h, lib/sysexits.in.h, lib/unistd.in.h, lib/vasnprintf.c, lib/vasnprintf.h, lib/verify.h, lib/vsnprintf.c, lib/wchar.in.h, lib/xsize.h, m4/00gnulib.m4, m4/alloca.m4, m4/argp.m4, m4/dirname.m4, m4/double-slash-root.m4, m4/errno_h.m4, m4/exponentd.m4, m4/extensions.m4, m4/float_h.m4, m4/getopt.m4, m4/gnulib-cache.m4, m4/gnulib-common.m4, m4/gnulib-comp.m4, m4/gnulib-tool.m4, m4/include_next.m4, m4/intmax_t.m4, m4/inttypes_h.m4, m4/longlong.m4, m4/malloc.m4, m4/math_h.m4, m4/memchr.m4, m4/mempcpy.m4, m4/mmap-anon.m4, m4/multiarch.m4, m4/nocrash.m4, m4/off_t.m4, m4/printf.m4, m4/rawmemchr.m4, m4/size_max.m4, m4/sleep.m4, m4/ssize_t.m4, m4/stdalign.m4, m4/stdbool.m4, m4/stddef_h.m4, m4/stdint.m4, m4/stdint_h.m4, m4/stdio_h.m4, m4/stdlib_h.m4, m4/strcase.m4, m4/strchrnul.m4, m4/strerror.m4, m4/string_h.m4, m4/strings_h.m4, m4/strndup.m4, m4/strnlen.m4, m4/sys_socket_h.m4, m4/sys_types_h.m4, m4/sysexits.m4, m4/unistd_h.m4, m4/vasnprintf.m4, m4/vsnprintf.m4, m4/warn-on-use.m4, m4/wchar_h.m4, m4/wchar_t.m4, m4/wint_t.m4, m4/xsize.m4, tools/snippet/_Noreturn.h, tools/snippet/arg-nonnull.h, tools/snippet/c++defs.h, tools/snippet/warn-on-use.h: New files from gnulib 1af55d85d9762a679b4302d5995f05ccd883e956. * configure.ac, Makefile.am: Adjust to compile gnulib. * src/bin/Makefile.am: Adjust to use gnulib. * README: Mention lib/.
113 lines
4.6 KiB
Text
113 lines
4.6 KiB
Text
# longlong.m4 serial 17
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dnl Copyright (C) 1999-2007, 2009-2012 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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dnl From Paul Eggert.
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# Define HAVE_LONG_LONG_INT if 'long long int' works.
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# This fixes a bug in Autoconf 2.61, and can be faster
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# than what's in Autoconf 2.62 through 2.68.
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# Note: If the type 'long long int' exists but is only 32 bits large
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# (as on some very old compilers), HAVE_LONG_LONG_INT will not be
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# defined. In this case you can treat 'long long int' like 'long int'.
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AC_DEFUN([AC_TYPE_LONG_LONG_INT],
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[
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AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
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AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int],
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[ac_cv_type_long_long_int=yes
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if test "x${ac_cv_prog_cc_c99-no}" = xno; then
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ac_cv_type_long_long_int=$ac_cv_type_unsigned_long_long_int
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if test $ac_cv_type_long_long_int = yes; then
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dnl Catch a bug in Tandem NonStop Kernel (OSS) cc -O circa 2004.
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dnl If cross compiling, assume the bug is not important, since
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dnl nobody cross compiles for this platform as far as we know.
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AC_RUN_IFELSE(
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[AC_LANG_PROGRAM(
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[[@%:@include <limits.h>
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@%:@ifndef LLONG_MAX
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@%:@ define HALF \
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(1LL << (sizeof (long long int) * CHAR_BIT - 2))
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@%:@ define LLONG_MAX (HALF - 1 + HALF)
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@%:@endif]],
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[[long long int n = 1;
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int i;
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for (i = 0; ; i++)
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{
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long long int m = n << i;
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if (m >> i != n)
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return 1;
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if (LLONG_MAX / 2 < m)
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break;
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}
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return 0;]])],
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[],
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[ac_cv_type_long_long_int=no],
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[:])
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fi
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fi])
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if test $ac_cv_type_long_long_int = yes; then
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AC_DEFINE([HAVE_LONG_LONG_INT], [1],
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[Define to 1 if the system has the type 'long long int'.])
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fi
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])
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# Define HAVE_UNSIGNED_LONG_LONG_INT if 'unsigned long long int' works.
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# This fixes a bug in Autoconf 2.61, and can be faster
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# than what's in Autoconf 2.62 through 2.68.
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# Note: If the type 'unsigned long long int' exists but is only 32 bits
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# large (as on some very old compilers), AC_TYPE_UNSIGNED_LONG_LONG_INT
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# will not be defined. In this case you can treat 'unsigned long long int'
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# like 'unsigned long int'.
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AC_DEFUN([AC_TYPE_UNSIGNED_LONG_LONG_INT],
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[
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AC_CACHE_CHECK([for unsigned long long int],
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[ac_cv_type_unsigned_long_long_int],
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[ac_cv_type_unsigned_long_long_int=yes
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if test "x${ac_cv_prog_cc_c99-no}" = xno; then
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AC_LINK_IFELSE(
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[_AC_TYPE_LONG_LONG_SNIPPET],
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[],
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[ac_cv_type_unsigned_long_long_int=no])
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fi])
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if test $ac_cv_type_unsigned_long_long_int = yes; then
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AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], [1],
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[Define to 1 if the system has the type 'unsigned long long int'.])
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fi
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])
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# Expands to a C program that can be used to test for simultaneous support
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# of 'long long' and 'unsigned long long'. We don't want to say that
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# 'long long' is available if 'unsigned long long' is not, or vice versa,
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# because too many programs rely on the symmetry between signed and unsigned
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# integer types (excluding 'bool').
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AC_DEFUN([_AC_TYPE_LONG_LONG_SNIPPET],
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[
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AC_LANG_PROGRAM(
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[[/* For now, do not test the preprocessor; as of 2007 there are too many
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implementations with broken preprocessors. Perhaps this can
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be revisited in 2012. In the meantime, code should not expect
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#if to work with literals wider than 32 bits. */
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/* Test literals. */
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long long int ll = 9223372036854775807ll;
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long long int nll = -9223372036854775807LL;
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unsigned long long int ull = 18446744073709551615ULL;
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/* Test constant expressions. */
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typedef int a[((-9223372036854775807LL < 0 && 0 < 9223372036854775807ll)
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? 1 : -1)];
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typedef int b[(18446744073709551615ULL <= (unsigned long long int) -1
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? 1 : -1)];
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int i = 63;]],
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[[/* Test availability of runtime routines for shift and division. */
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long long int llmax = 9223372036854775807ll;
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unsigned long long int ullmax = 18446744073709551615ull;
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return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i)
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| (llmax / ll) | (llmax % ll)
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| (ull << 63) | (ull >> 63) | (ull << i) | (ull >> i)
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| (ullmax / ull) | (ullmax % ull));]])
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])
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