mirror of
https://github.com/moparisthebest/wget
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473 lines
15 KiB
Plaintext
473 lines
15 KiB
Plaintext
# stdint.m4 serial 34
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dnl Copyright (C) 2001-2009 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 and Bruno Haible.
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dnl Test whether <stdint.h> is supported or must be substituted.
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AC_DEFUN([gl_STDINT_H],
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[
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AC_PREREQ([2.59])dnl
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dnl Check for long long int and unsigned long long int.
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AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
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if test $ac_cv_type_long_long_int = yes; then
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HAVE_LONG_LONG_INT=1
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else
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HAVE_LONG_LONG_INT=0
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fi
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AC_SUBST([HAVE_LONG_LONG_INT])
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AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
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if test $ac_cv_type_unsigned_long_long_int = yes; then
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HAVE_UNSIGNED_LONG_LONG_INT=1
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else
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HAVE_UNSIGNED_LONG_LONG_INT=0
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fi
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AC_SUBST([HAVE_UNSIGNED_LONG_LONG_INT])
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dnl Check for <inttypes.h>.
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dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h.
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if test $ac_cv_header_inttypes_h = yes; then
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HAVE_INTTYPES_H=1
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else
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HAVE_INTTYPES_H=0
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fi
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AC_SUBST([HAVE_INTTYPES_H])
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dnl Check for <sys/types.h>.
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dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_sys_types_h.
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if test $ac_cv_header_sys_types_h = yes; then
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HAVE_SYS_TYPES_H=1
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else
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HAVE_SYS_TYPES_H=0
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fi
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AC_SUBST([HAVE_SYS_TYPES_H])
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gl_CHECK_NEXT_HEADERS([stdint.h])
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if test $ac_cv_header_stdint_h = yes; then
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HAVE_STDINT_H=1
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else
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HAVE_STDINT_H=0
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fi
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AC_SUBST([HAVE_STDINT_H])
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dnl Now see whether we need a substitute <stdint.h>.
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if test $ac_cv_header_stdint_h = yes; then
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AC_CACHE_CHECK([whether stdint.h conforms to C99],
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[gl_cv_header_working_stdint_h],
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[gl_cv_header_working_stdint_h=no
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */
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#define __STDC_CONSTANT_MACROS 1 /* to make it work also in C++ mode */
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#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
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#include <stdint.h>
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/* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>. */
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#if !(defined WCHAR_MIN && defined WCHAR_MAX)
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#error "WCHAR_MIN, WCHAR_MAX not defined in <stdint.h>"
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#endif
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]
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gl_STDINT_INCLUDES
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[
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#ifdef INT8_MAX
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int8_t a1 = INT8_MAX;
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int8_t a1min = INT8_MIN;
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#endif
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#ifdef INT16_MAX
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int16_t a2 = INT16_MAX;
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int16_t a2min = INT16_MIN;
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#endif
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#ifdef INT32_MAX
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int32_t a3 = INT32_MAX;
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int32_t a3min = INT32_MIN;
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#endif
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#ifdef INT64_MAX
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int64_t a4 = INT64_MAX;
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int64_t a4min = INT64_MIN;
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#endif
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#ifdef UINT8_MAX
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uint8_t b1 = UINT8_MAX;
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#else
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typedef int b1[(unsigned char) -1 != 255 ? 1 : -1];
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#endif
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#ifdef UINT16_MAX
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uint16_t b2 = UINT16_MAX;
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#endif
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#ifdef UINT32_MAX
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uint32_t b3 = UINT32_MAX;
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#endif
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#ifdef UINT64_MAX
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uint64_t b4 = UINT64_MAX;
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#endif
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int_least8_t c1 = INT8_C (0x7f);
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int_least8_t c1max = INT_LEAST8_MAX;
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int_least8_t c1min = INT_LEAST8_MIN;
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int_least16_t c2 = INT16_C (0x7fff);
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int_least16_t c2max = INT_LEAST16_MAX;
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int_least16_t c2min = INT_LEAST16_MIN;
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int_least32_t c3 = INT32_C (0x7fffffff);
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int_least32_t c3max = INT_LEAST32_MAX;
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int_least32_t c3min = INT_LEAST32_MIN;
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int_least64_t c4 = INT64_C (0x7fffffffffffffff);
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int_least64_t c4max = INT_LEAST64_MAX;
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int_least64_t c4min = INT_LEAST64_MIN;
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uint_least8_t d1 = UINT8_C (0xff);
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uint_least8_t d1max = UINT_LEAST8_MAX;
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uint_least16_t d2 = UINT16_C (0xffff);
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uint_least16_t d2max = UINT_LEAST16_MAX;
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uint_least32_t d3 = UINT32_C (0xffffffff);
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uint_least32_t d3max = UINT_LEAST32_MAX;
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uint_least64_t d4 = UINT64_C (0xffffffffffffffff);
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uint_least64_t d4max = UINT_LEAST64_MAX;
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int_fast8_t e1 = INT_FAST8_MAX;
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int_fast8_t e1min = INT_FAST8_MIN;
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int_fast16_t e2 = INT_FAST16_MAX;
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int_fast16_t e2min = INT_FAST16_MIN;
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int_fast32_t e3 = INT_FAST32_MAX;
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int_fast32_t e3min = INT_FAST32_MIN;
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int_fast64_t e4 = INT_FAST64_MAX;
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int_fast64_t e4min = INT_FAST64_MIN;
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uint_fast8_t f1 = UINT_FAST8_MAX;
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uint_fast16_t f2 = UINT_FAST16_MAX;
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uint_fast32_t f3 = UINT_FAST32_MAX;
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uint_fast64_t f4 = UINT_FAST64_MAX;
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#ifdef INTPTR_MAX
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intptr_t g = INTPTR_MAX;
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intptr_t gmin = INTPTR_MIN;
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#endif
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#ifdef UINTPTR_MAX
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uintptr_t h = UINTPTR_MAX;
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#endif
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intmax_t i = INTMAX_MAX;
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uintmax_t j = UINTMAX_MAX;
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#include <limits.h> /* for CHAR_BIT */
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#define TYPE_MINIMUM(t) \
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((t) ((t) 0 < (t) -1 ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))
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#define TYPE_MAXIMUM(t) \
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((t) ((t) 0 < (t) -1 ? (t) -1 : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
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struct s {
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int check_PTRDIFF:
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PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t)
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&& PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t)
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? 1 : -1;
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/* Detect bug in FreeBSD 6.0 / ia64. */
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int check_SIG_ATOMIC:
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SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t)
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&& SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t)
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? 1 : -1;
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int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1;
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int check_WCHAR:
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WCHAR_MIN == TYPE_MINIMUM (wchar_t)
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&& WCHAR_MAX == TYPE_MAXIMUM (wchar_t)
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? 1 : -1;
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/* Detect bug in mingw. */
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int check_WINT:
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WINT_MIN == TYPE_MINIMUM (wint_t)
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&& WINT_MAX == TYPE_MAXIMUM (wint_t)
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? 1 : -1;
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/* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others. */
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int check_UINT8_C:
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(-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1;
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int check_UINT16_C:
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(-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1;
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/* Detect bugs in OpenBSD 3.9 stdint.h. */
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#ifdef UINT8_MAX
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int check_uint8: (uint8_t) -1 == UINT8_MAX ? 1 : -1;
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#endif
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#ifdef UINT16_MAX
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int check_uint16: (uint16_t) -1 == UINT16_MAX ? 1 : -1;
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#endif
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#ifdef UINT32_MAX
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int check_uint32: (uint32_t) -1 == UINT32_MAX ? 1 : -1;
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#endif
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#ifdef UINT64_MAX
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int check_uint64: (uint64_t) -1 == UINT64_MAX ? 1 : -1;
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#endif
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int check_uint_least8: (uint_least8_t) -1 == UINT_LEAST8_MAX ? 1 : -1;
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int check_uint_least16: (uint_least16_t) -1 == UINT_LEAST16_MAX ? 1 : -1;
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int check_uint_least32: (uint_least32_t) -1 == UINT_LEAST32_MAX ? 1 : -1;
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int check_uint_least64: (uint_least64_t) -1 == UINT_LEAST64_MAX ? 1 : -1;
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int check_uint_fast8: (uint_fast8_t) -1 == UINT_FAST8_MAX ? 1 : -1;
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int check_uint_fast16: (uint_fast16_t) -1 == UINT_FAST16_MAX ? 1 : -1;
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int check_uint_fast32: (uint_fast32_t) -1 == UINT_FAST32_MAX ? 1 : -1;
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int check_uint_fast64: (uint_fast64_t) -1 == UINT_FAST64_MAX ? 1 : -1;
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int check_uintptr: (uintptr_t) -1 == UINTPTR_MAX ? 1 : -1;
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int check_uintmax: (uintmax_t) -1 == UINTMAX_MAX ? 1 : -1;
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int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1;
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};
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]])],
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[dnl Determine whether the various *_MIN, *_MAX macros are usable
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dnl in preprocessor expression. We could do it by compiling a test
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dnl program for each of these macros. It is faster to run a program
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dnl that inspects the macro expansion.
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dnl This detects a bug on HP-UX 11.23/ia64.
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AC_RUN_IFELSE([
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AC_LANG_PROGRAM([[
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#define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */
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#define __STDC_CONSTANT_MACROS 1 /* to make it work also in C++ mode */
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#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
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#include <stdint.h>
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]
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gl_STDINT_INCLUDES
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[
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#include <stdio.h>
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#include <string.h>
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#define MVAL(macro) MVAL1(macro)
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#define MVAL1(expression) #expression
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static const char *macro_values[] =
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{
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#ifdef INT8_MAX
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MVAL (INT8_MAX),
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#endif
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#ifdef INT16_MAX
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MVAL (INT16_MAX),
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#endif
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#ifdef INT32_MAX
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MVAL (INT32_MAX),
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#endif
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#ifdef INT64_MAX
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MVAL (INT64_MAX),
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#endif
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#ifdef UINT8_MAX
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MVAL (UINT8_MAX),
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#endif
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#ifdef UINT16_MAX
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MVAL (UINT16_MAX),
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#endif
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#ifdef UINT32_MAX
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MVAL (UINT32_MAX),
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#endif
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#ifdef UINT64_MAX
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MVAL (UINT64_MAX),
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#endif
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NULL
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};
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]], [[
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const char **mv;
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for (mv = macro_values; *mv != NULL; mv++)
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{
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const char *value = *mv;
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/* Test whether it looks like a cast expression. */
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if (strncmp (value, "((unsigned int)"/*)*/, 15) == 0
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|| strncmp (value, "((unsigned short)"/*)*/, 17) == 0
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|| strncmp (value, "((unsigned char)"/*)*/, 16) == 0
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|| strncmp (value, "((int)"/*)*/, 6) == 0
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|| strncmp (value, "((signed short)"/*)*/, 15) == 0
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|| strncmp (value, "((signed char)"/*)*/, 14) == 0)
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return 1;
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}
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return 0;
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]])],
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[gl_cv_header_working_stdint_h=yes],
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[],
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[dnl When cross-compiling, assume it works.
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gl_cv_header_working_stdint_h=yes
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])
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])
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])
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fi
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if test "$gl_cv_header_working_stdint_h" = yes; then
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STDINT_H=
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else
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dnl Check for <sys/inttypes.h>, and for
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dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5).
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AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h])
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if test $ac_cv_header_sys_inttypes_h = yes; then
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HAVE_SYS_INTTYPES_H=1
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else
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HAVE_SYS_INTTYPES_H=0
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fi
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AC_SUBST([HAVE_SYS_INTTYPES_H])
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if test $ac_cv_header_sys_bitypes_h = yes; then
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HAVE_SYS_BITYPES_H=1
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else
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HAVE_SYS_BITYPES_H=0
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fi
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AC_SUBST([HAVE_SYS_BITYPES_H])
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dnl Check for <wchar.h> (missing in Linux uClibc when built without wide
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dnl character support).
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AC_CHECK_HEADERS_ONCE([wchar.h])
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gl_STDINT_TYPE_PROPERTIES
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STDINT_H=stdint.h
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fi
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AC_SUBST([STDINT_H])
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])
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dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES)
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dnl Determine the size of each of the given types in bits.
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AC_DEFUN([gl_STDINT_BITSIZEOF],
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[
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dnl Use a shell loop, to avoid bloating configure, and
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dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
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dnl config.h.in,
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dnl - extra AC_SUBST calls, so that the right substitutions are made.
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m4_foreach_w([gltype], [$1],
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[AH_TEMPLATE([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
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[Define to the number of bits in type ']gltype['.])])
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for gltype in $1 ; do
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AC_CACHE_CHECK([for bit size of $gltype], [gl_cv_bitsizeof_${gltype}],
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[AC_COMPUTE_INT([result], [sizeof ($gltype) * CHAR_BIT],
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[$2
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#include <limits.h>], [result=unknown])
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eval gl_cv_bitsizeof_${gltype}=\$result
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])
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eval result=\$gl_cv_bitsizeof_${gltype}
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if test $result = unknown; then
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dnl Use a nonempty default, because some compilers, such as IRIX 5 cc,
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dnl do a syntax check even on unused #if conditions and give an error
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dnl on valid C code like this:
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dnl #if 0
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dnl # if > 32
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dnl # endif
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dnl #endif
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result=0
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fi
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GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
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AC_DEFINE_UNQUOTED([BITSIZEOF_${GLTYPE}], [$result])
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eval BITSIZEOF_${GLTYPE}=\$result
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done
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m4_foreach_w([gltype], [$1],
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[AC_SUBST([BITSIZEOF_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
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])
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dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES)
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dnl Determine the signedness of each of the given types.
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dnl Define HAVE_SIGNED_TYPE if type is signed.
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AC_DEFUN([gl_CHECK_TYPES_SIGNED],
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[
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dnl Use a shell loop, to avoid bloating configure, and
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dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
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dnl config.h.in,
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dnl - extra AC_SUBST calls, so that the right substitutions are made.
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m4_foreach_w([gltype], [$1],
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[AH_TEMPLATE([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
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[Define to 1 if ']gltype[' is a signed integer type.])])
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for gltype in $1 ; do
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AC_CACHE_CHECK([whether $gltype is signed], [gl_cv_type_${gltype}_signed],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([$2[
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int verify[2 * (($gltype) -1 < ($gltype) 0) - 1];]])],
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result=yes, result=no)
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eval gl_cv_type_${gltype}_signed=\$result
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])
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eval result=\$gl_cv_type_${gltype}_signed
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GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
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if test "$result" = yes; then
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AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], [1])
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eval HAVE_SIGNED_${GLTYPE}=1
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else
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eval HAVE_SIGNED_${GLTYPE}=0
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fi
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done
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m4_foreach_w([gltype], [$1],
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[AC_SUBST([HAVE_SIGNED_]translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
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])
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dnl gl_INTEGER_TYPE_SUFFIX(TYPES, INCLUDES)
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dnl Determine the suffix to use for integer constants of the given types.
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dnl Define t_SUFFIX for each such type.
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AC_DEFUN([gl_INTEGER_TYPE_SUFFIX],
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[
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dnl Use a shell loop, to avoid bloating configure, and
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dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
|
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dnl config.h.in,
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dnl - extra AC_SUBST calls, so that the right substitutions are made.
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m4_foreach_w([gltype], [$1],
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[AH_TEMPLATE(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX],
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[Define to l, ll, u, ul, ull, etc., as suitable for
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constants of type ']gltype['.])])
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for gltype in $1 ; do
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AC_CACHE_CHECK([for $gltype integer literal suffix],
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[gl_cv_type_${gltype}_suffix],
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[eval gl_cv_type_${gltype}_suffix=no
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eval result=\$gl_cv_type_${gltype}_signed
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if test "$result" = yes; then
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glsufu=
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else
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glsufu=u
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fi
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for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do
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case $glsuf in
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'') gltype1='int';;
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l) gltype1='long int';;
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ll) gltype1='long long int';;
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i64) gltype1='__int64';;
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u) gltype1='unsigned int';;
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ul) gltype1='unsigned long int';;
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ull) gltype1='unsigned long long int';;
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ui64)gltype1='unsigned __int64';;
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esac
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([$2[
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extern $gltype foo;
|
|
extern $gltype1 foo;]])],
|
|
[eval gl_cv_type_${gltype}_suffix=\$glsuf])
|
|
eval result=\$gl_cv_type_${gltype}_suffix
|
|
test "$result" != no && break
|
|
done])
|
|
GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
|
|
eval result=\$gl_cv_type_${gltype}_suffix
|
|
test "$result" = no && result=
|
|
eval ${GLTYPE}_SUFFIX=\$result
|
|
AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], [$result])
|
|
done
|
|
m4_foreach_w([gltype], [$1],
|
|
[AC_SUBST(translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])])
|
|
])
|
|
|
|
dnl gl_STDINT_INCLUDES
|
|
AC_DEFUN([gl_STDINT_INCLUDES],
|
|
[[
|
|
/* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
|
|
included before <wchar.h>. */
|
|
#include <stddef.h>
|
|
#include <signal.h>
|
|
#if HAVE_WCHAR_H
|
|
# include <stdio.h>
|
|
# include <time.h>
|
|
# include <wchar.h>
|
|
#endif
|
|
]])
|
|
|
|
dnl gl_STDINT_TYPE_PROPERTIES
|
|
dnl Compute HAVE_SIGNED_t, BITSIZEOF_t and t_SUFFIX, for all the types t
|
|
dnl of interest to stdint.in.h.
|
|
AC_DEFUN([gl_STDINT_TYPE_PROPERTIES],
|
|
[
|
|
AC_REQUIRE([gl_MULTIARCH])
|
|
if test $APPLE_UNIVERSAL_BUILD = 0; then
|
|
gl_STDINT_BITSIZEOF([ptrdiff_t size_t],
|
|
[gl_STDINT_INCLUDES])
|
|
fi
|
|
gl_STDINT_BITSIZEOF([sig_atomic_t wchar_t wint_t],
|
|
[gl_STDINT_INCLUDES])
|
|
gl_CHECK_TYPES_SIGNED([sig_atomic_t wchar_t wint_t],
|
|
[gl_STDINT_INCLUDES])
|
|
gl_cv_type_ptrdiff_t_signed=yes
|
|
gl_cv_type_size_t_signed=no
|
|
if test $APPLE_UNIVERSAL_BUILD = 0; then
|
|
gl_INTEGER_TYPE_SUFFIX([ptrdiff_t size_t],
|
|
[gl_STDINT_INCLUDES])
|
|
fi
|
|
gl_INTEGER_TYPE_SUFFIX([sig_atomic_t wchar_t wint_t],
|
|
[gl_STDINT_INCLUDES])
|
|
])
|
|
|
|
dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in.
|
|
dnl Remove this when we can assume autoconf >= 2.61.
|
|
m4_ifdef([AC_COMPUTE_INT], [], [
|
|
AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])])
|
|
])
|
|
|
|
# Hey Emacs!
|
|
# Local Variables:
|
|
# indent-tabs-mode: nil
|
|
# End:
|