| 1 | # stdint.m4 serial 60
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| 2 | dnl Copyright (C) 2001-2021 Free Software Foundation, Inc.
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| 3 | dnl This file is free software; the Free Software Foundation
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| 4 | dnl gives unlimited permission to copy and/or distribute it,
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| 5 | dnl with or without modifications, as long as this notice is preserved.
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| 6 |
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| 7 | dnl From Paul Eggert and Bruno Haible.
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| 8 | dnl Test whether <stdint.h> is supported or must be substituted.
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| 9 |
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| 10 | AC_PREREQ([2.61])
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| 11 |
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| 12 | AC_DEFUN_ONCE([gl_STDINT_H],
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| 13 | [
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| 14 | AC_PREREQ([2.59])dnl
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| 15 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
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| 16 |
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| 17 | AC_REQUIRE([gl_LIMITS_H])
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| 18 | AC_REQUIRE([gt_TYPE_WINT_T])
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| 19 |
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| 20 | dnl For backward compatibility. Some packages may still be testing these
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| 21 | dnl macros.
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| 22 | AC_DEFINE([HAVE_LONG_LONG_INT], [1],
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| 23 | [Define to 1 if the system has the type 'long long int'.])
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| 24 | AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], [1],
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| 25 | [Define to 1 if the system has the type 'unsigned long long int'.])
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| 26 |
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| 27 | dnl Check for <wchar.h>, in the same way as gl_WCHAR_H does.
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| 28 | AC_CHECK_HEADERS_ONCE([wchar.h])
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| 29 | if test $ac_cv_header_wchar_h = yes; then
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| 30 | HAVE_WCHAR_H=1
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| 31 | else
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| 32 | HAVE_WCHAR_H=0
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| 33 | fi
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| 34 | AC_SUBST([HAVE_WCHAR_H])
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| 35 |
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| 36 | dnl Check for <inttypes.h>.
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| 37 | AC_CHECK_HEADERS_ONCE([inttypes.h])
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| 38 | if test $ac_cv_header_inttypes_h = yes; then
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| 39 | HAVE_INTTYPES_H=1
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| 40 | else
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| 41 | HAVE_INTTYPES_H=0
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| 42 | fi
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| 43 | AC_SUBST([HAVE_INTTYPES_H])
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| 44 |
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| 45 | dnl Check for <sys/types.h>.
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| 46 | AC_CHECK_HEADERS_ONCE([sys/types.h])
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| 47 | if test $ac_cv_header_sys_types_h = yes; then
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| 48 | HAVE_SYS_TYPES_H=1
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| 49 | else
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| 50 | HAVE_SYS_TYPES_H=0
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| 51 | fi
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| 52 | AC_SUBST([HAVE_SYS_TYPES_H])
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| 53 |
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| 54 | gl_CHECK_NEXT_HEADERS([stdint.h])
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| 55 | if test $ac_cv_header_stdint_h = yes; then
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| 56 | HAVE_STDINT_H=1
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| 57 | else
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| 58 | HAVE_STDINT_H=0
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| 59 | fi
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| 60 | AC_SUBST([HAVE_STDINT_H])
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| 61 |
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| 62 | dnl Now see whether we need a substitute <stdint.h>.
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| 63 | if test $ac_cv_header_stdint_h = yes; then
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| 64 | AC_CACHE_CHECK([whether stdint.h conforms to C99],
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| 65 | [gl_cv_header_working_stdint_h],
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| 66 | [gl_cv_header_working_stdint_h=no
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| 67 | AC_COMPILE_IFELSE([
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| 68 | AC_LANG_PROGRAM([[
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| 69 | #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
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| 70 | #define __STDC_CONSTANT_MACROS 1
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| 71 | #define __STDC_LIMIT_MACROS 1
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| 72 | #include <stdint.h>
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| 73 | /* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>. */
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| 74 | #if !(defined WCHAR_MIN && defined WCHAR_MAX)
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| 75 | #error "WCHAR_MIN, WCHAR_MAX not defined in <stdint.h>"
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| 76 | #endif
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| 77 | ]
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| 78 | gl_STDINT_INCLUDES
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| 79 | [
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| 80 | #ifdef INT8_MAX
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| 81 | int8_t a1 = INT8_MAX;
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| 82 | int8_t a1min = INT8_MIN;
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| 83 | #endif
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| 84 | #ifdef INT16_MAX
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| 85 | int16_t a2 = INT16_MAX;
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| 86 | int16_t a2min = INT16_MIN;
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| 87 | #endif
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| 88 | #ifdef INT32_MAX
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| 89 | int32_t a3 = INT32_MAX;
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| 90 | int32_t a3min = INT32_MIN;
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| 91 | #endif
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| 92 | #ifdef INT64_MAX
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| 93 | int64_t a4 = INT64_MAX;
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| 94 | int64_t a4min = INT64_MIN;
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| 95 | #endif
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| 96 | #ifdef UINT8_MAX
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| 97 | uint8_t b1 = UINT8_MAX;
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| 98 | #else
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| 99 | typedef int b1[(unsigned char) -1 != 255 ? 1 : -1];
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| 100 | #endif
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| 101 | #ifdef UINT16_MAX
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| 102 | uint16_t b2 = UINT16_MAX;
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| 103 | #endif
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| 104 | #ifdef UINT32_MAX
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| 105 | uint32_t b3 = UINT32_MAX;
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| 106 | #endif
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| 107 | #ifdef UINT64_MAX
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| 108 | uint64_t b4 = UINT64_MAX;
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| 109 | #endif
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| 110 | int_least8_t c1 = INT8_C (0x7f);
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| 111 | int_least8_t c1max = INT_LEAST8_MAX;
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| 112 | int_least8_t c1min = INT_LEAST8_MIN;
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| 113 | int_least16_t c2 = INT16_C (0x7fff);
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| 114 | int_least16_t c2max = INT_LEAST16_MAX;
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| 115 | int_least16_t c2min = INT_LEAST16_MIN;
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| 116 | int_least32_t c3 = INT32_C (0x7fffffff);
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| 117 | int_least32_t c3max = INT_LEAST32_MAX;
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| 118 | int_least32_t c3min = INT_LEAST32_MIN;
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| 119 | int_least64_t c4 = INT64_C (0x7fffffffffffffff);
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| 120 | int_least64_t c4max = INT_LEAST64_MAX;
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| 121 | int_least64_t c4min = INT_LEAST64_MIN;
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| 122 | uint_least8_t d1 = UINT8_C (0xff);
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| 123 | uint_least8_t d1max = UINT_LEAST8_MAX;
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| 124 | uint_least16_t d2 = UINT16_C (0xffff);
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| 125 | uint_least16_t d2max = UINT_LEAST16_MAX;
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| 126 | uint_least32_t d3 = UINT32_C (0xffffffff);
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| 127 | uint_least32_t d3max = UINT_LEAST32_MAX;
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| 128 | uint_least64_t d4 = UINT64_C (0xffffffffffffffff);
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| 129 | uint_least64_t d4max = UINT_LEAST64_MAX;
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| 130 | int_fast8_t e1 = INT_FAST8_MAX;
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| 131 | int_fast8_t e1min = INT_FAST8_MIN;
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| 132 | int_fast16_t e2 = INT_FAST16_MAX;
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| 133 | int_fast16_t e2min = INT_FAST16_MIN;
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| 134 | int_fast32_t e3 = INT_FAST32_MAX;
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| 135 | int_fast32_t e3min = INT_FAST32_MIN;
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| 136 | int_fast64_t e4 = INT_FAST64_MAX;
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| 137 | int_fast64_t e4min = INT_FAST64_MIN;
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| 138 | uint_fast8_t f1 = UINT_FAST8_MAX;
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| 139 | uint_fast16_t f2 = UINT_FAST16_MAX;
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| 140 | uint_fast32_t f3 = UINT_FAST32_MAX;
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| 141 | uint_fast64_t f4 = UINT_FAST64_MAX;
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| 142 | #ifdef INTPTR_MAX
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| 143 | intptr_t g = INTPTR_MAX;
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| 144 | intptr_t gmin = INTPTR_MIN;
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| 145 | #endif
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| 146 | #ifdef UINTPTR_MAX
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| 147 | uintptr_t h = UINTPTR_MAX;
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| 148 | #endif
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| 149 | intmax_t i = INTMAX_MAX;
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| 150 | uintmax_t j = UINTMAX_MAX;
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| 151 |
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| 152 | /* Check that SIZE_MAX has the correct type, if possible. */
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| 153 | #if 201112 <= __STDC_VERSION__
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| 154 | int k = _Generic (SIZE_MAX, size_t: 0);
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| 155 | #elif (2 <= __GNUC__ || 4 <= __clang_major__ || defined __IBM__TYPEOF__ \
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| 156 | || (0x5110 <= __SUNPRO_C && !__STDC__))
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| 157 | extern size_t k;
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| 158 | extern __typeof__ (SIZE_MAX) k;
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| 159 | #endif
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| 160 |
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| 161 | #include <limits.h> /* for CHAR_BIT */
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| 162 | #define TYPE_MINIMUM(t) \
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| 163 | ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t)))
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| 164 | #define TYPE_MAXIMUM(t) \
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| 165 | ((t) ((t) 0 < (t) -1 \
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| 166 | ? (t) -1 \
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| 167 | : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
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| 168 | struct s {
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| 169 | int check_PTRDIFF:
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| 170 | PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t)
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| 171 | && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t)
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| 172 | ? 1 : -1;
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| 173 | /* Detect bug in FreeBSD 6.0/ia64 and FreeBSD 13.0/arm64. */
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| 174 | int check_SIG_ATOMIC:
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| 175 | SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t)
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| 176 | && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t)
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| 177 | ? 1 : -1;
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| 178 | int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1;
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| 179 | int check_WCHAR:
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| 180 | WCHAR_MIN == TYPE_MINIMUM (wchar_t)
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| 181 | && WCHAR_MAX == TYPE_MAXIMUM (wchar_t)
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| 182 | ? 1 : -1;
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| 183 | /* Detect bug in mingw. */
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| 184 | int check_WINT:
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| 185 | WINT_MIN == TYPE_MINIMUM (wint_t)
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| 186 | && WINT_MAX == TYPE_MAXIMUM (wint_t)
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| 187 | ? 1 : -1;
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| 188 |
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| 189 | /* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others. */
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| 190 | int check_UINT8_C:
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| 191 | (-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1;
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| 192 | int check_UINT16_C:
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| 193 | (-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1;
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| 194 |
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| 195 | /* Detect bugs in OpenBSD 3.9 stdint.h. */
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| 196 | #ifdef UINT8_MAX
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| 197 | int check_uint8: (uint8_t) -1 == UINT8_MAX ? 1 : -1;
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| 198 | #endif
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| 199 | #ifdef UINT16_MAX
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| 200 | int check_uint16: (uint16_t) -1 == UINT16_MAX ? 1 : -1;
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| 201 | #endif
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| 202 | #ifdef UINT32_MAX
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| 203 | int check_uint32: (uint32_t) -1 == UINT32_MAX ? 1 : -1;
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| 204 | #endif
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| 205 | #ifdef UINT64_MAX
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| 206 | int check_uint64: (uint64_t) -1 == UINT64_MAX ? 1 : -1;
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| 207 | #endif
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| 208 | int check_uint_least8: (uint_least8_t) -1 == UINT_LEAST8_MAX ? 1 : -1;
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| 209 | int check_uint_least16: (uint_least16_t) -1 == UINT_LEAST16_MAX ? 1 : -1;
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| 210 | int check_uint_least32: (uint_least32_t) -1 == UINT_LEAST32_MAX ? 1 : -1;
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| 211 | int check_uint_least64: (uint_least64_t) -1 == UINT_LEAST64_MAX ? 1 : -1;
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| 212 | int check_uint_fast8: (uint_fast8_t) -1 == UINT_FAST8_MAX ? 1 : -1;
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| 213 | int check_uint_fast16: (uint_fast16_t) -1 == UINT_FAST16_MAX ? 1 : -1;
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| 214 | int check_uint_fast32: (uint_fast32_t) -1 == UINT_FAST32_MAX ? 1 : -1;
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| 215 | int check_uint_fast64: (uint_fast64_t) -1 == UINT_FAST64_MAX ? 1 : -1;
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| 216 | int check_uintptr: (uintptr_t) -1 == UINTPTR_MAX ? 1 : -1;
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| 217 | int check_uintmax: (uintmax_t) -1 == UINTMAX_MAX ? 1 : -1;
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| 218 | int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1;
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| 219 | };
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| 220 | ]])],
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| 221 | [dnl Determine whether the various *_MIN, *_MAX macros are usable
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| 222 | dnl in preprocessor expression. We could do it by compiling a test
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| 223 | dnl program for each of these macros. It is faster to run a program
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| 224 | dnl that inspects the macro expansion.
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| 225 | dnl This detects a bug on HP-UX 11.23/ia64.
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| 226 | AC_RUN_IFELSE([
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| 227 | AC_LANG_PROGRAM([[
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| 228 | #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
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| 229 | #define __STDC_CONSTANT_MACROS 1
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| 230 | #define __STDC_LIMIT_MACROS 1
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| 231 | #include <stdint.h>
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| 232 | ]
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| 233 | gl_STDINT_INCLUDES
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| 234 | [
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| 235 | #include <stdio.h>
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| 236 | #include <string.h>
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| 237 | #define MVAL(macro) MVAL1(macro)
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| 238 | #define MVAL1(expression) #expression
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| 239 | static const char *macro_values[] =
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| 240 | {
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| 241 | #ifdef INT8_MAX
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| 242 | MVAL (INT8_MAX),
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| 243 | #endif
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| 244 | #ifdef INT16_MAX
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| 245 | MVAL (INT16_MAX),
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| 246 | #endif
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| 247 | #ifdef INT32_MAX
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| 248 | MVAL (INT32_MAX),
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| 249 | #endif
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| 250 | #ifdef INT64_MAX
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| 251 | MVAL (INT64_MAX),
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| 252 | #endif
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| 253 | #ifdef UINT8_MAX
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| 254 | MVAL (UINT8_MAX),
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| 255 | #endif
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| 256 | #ifdef UINT16_MAX
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| 257 | MVAL (UINT16_MAX),
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| 258 | #endif
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| 259 | #ifdef UINT32_MAX
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| 260 | MVAL (UINT32_MAX),
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| 261 | #endif
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| 262 | #ifdef UINT64_MAX
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| 263 | MVAL (UINT64_MAX),
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| 264 | #endif
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| 265 | NULL
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| 266 | };
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| 267 | ]], [[
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| 268 | const char **mv;
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| 269 | for (mv = macro_values; *mv != NULL; mv++)
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| 270 | {
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| 271 | const char *value = *mv;
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| 272 | /* Test whether it looks like a cast expression. */
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| 273 | if (strncmp (value, "((unsigned int)"/*)*/, 15) == 0
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| 274 | || strncmp (value, "((unsigned short)"/*)*/, 17) == 0
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| 275 | || strncmp (value, "((unsigned char)"/*)*/, 16) == 0
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| 276 | || strncmp (value, "((int)"/*)*/, 6) == 0
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| 277 | || strncmp (value, "((signed short)"/*)*/, 15) == 0
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| 278 | || strncmp (value, "((signed char)"/*)*/, 14) == 0)
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| 279 | return mv - macro_values + 1;
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| 280 | }
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| 281 | return 0;
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| 282 | ]])],
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| 283 | [gl_cv_header_working_stdint_h=yes],
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| 284 | [],
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| 285 | [case "$host_os" in
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| 286 | # Guess yes on native Windows.
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| 287 | mingw*) gl_cv_header_working_stdint_h="guessing yes" ;;
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| 288 | # In general, assume it works.
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| 289 | *) gl_cv_header_working_stdint_h="guessing yes" ;;
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| 290 | esac
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| 291 | ])
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| 292 | ])
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| 293 | ])
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| 294 | fi
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| 295 |
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| 296 | HAVE_C99_STDINT_H=0
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| 297 | HAVE_SYS_BITYPES_H=0
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| 298 | HAVE_SYS_INTTYPES_H=0
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| 299 | STDINT_H=stdint.h
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| 300 | case "$gl_cv_header_working_stdint_h" in
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| 301 | *yes)
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| 302 | HAVE_C99_STDINT_H=1
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| 303 | dnl Now see whether the system <stdint.h> works without
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| 304 | dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined.
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| 305 | dnl If not, there would be problems when stdint.h is included from C++.
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| 306 | AC_CACHE_CHECK([whether stdint.h works without ISO C predefines],
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| 307 | [gl_cv_header_stdint_without_STDC_macros],
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| 308 | [gl_cv_header_stdint_without_STDC_macros=no
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| 309 | AC_COMPILE_IFELSE([
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| 310 | AC_LANG_PROGRAM([[
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| 311 | #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
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| 312 | #include <stdint.h>
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| 313 | ]
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| 314 | gl_STDINT_INCLUDES
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| 315 | [
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| 316 | intmax_t im = INTMAX_MAX;
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| 317 | int32_t i32 = INT32_C (0x7fffffff);
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| 318 | ]])],
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| 319 | [gl_cv_header_stdint_without_STDC_macros=yes])
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| 320 | ])
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| 321 |
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| 322 | if test $gl_cv_header_stdint_without_STDC_macros = no; then
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| 323 | AC_DEFINE([__STDC_CONSTANT_MACROS], [1],
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| 324 | [Define to 1 if the system <stdint.h> predates C++11.])
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| 325 | AC_DEFINE([__STDC_LIMIT_MACROS], [1],
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| 326 | [Define to 1 if the system <stdint.h> predates C++11.])
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| 327 | fi
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| 328 | AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.],
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| 329 | [gl_cv_header_stdint_width],
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| 330 | [gl_cv_header_stdint_width=no
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| 331 | AC_COMPILE_IFELSE(
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| 332 | [AC_LANG_PROGRAM([[
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| 333 | /* Work if build is not clean. */
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| 334 | #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1
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| 335 | #ifndef __STDC_WANT_IEC_60559_BFP_EXT__
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| 336 | #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
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| 337 | #endif
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| 338 | #include <stdint.h>
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| 339 | ]gl_STDINT_INCLUDES[
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| 340 | int iw = UINTMAX_WIDTH;
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| 341 | ]])],
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| 342 | [gl_cv_header_stdint_width=yes])])
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| 343 | if test "$gl_cv_header_stdint_width" = yes; then
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| 344 | STDINT_H=
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| 345 | fi
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| 346 | ;;
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| 347 | *)
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| 348 | dnl Check for <sys/inttypes.h>, and for
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| 349 | dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5).
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| 350 | AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h])
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| 351 | if test $ac_cv_header_sys_inttypes_h = yes; then
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| 352 | HAVE_SYS_INTTYPES_H=1
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| 353 | fi
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| 354 | if test $ac_cv_header_sys_bitypes_h = yes; then
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| 355 | HAVE_SYS_BITYPES_H=1
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| 356 | fi
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| 357 | gl_STDINT_TYPE_PROPERTIES
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| 358 | ;;
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| 359 | esac
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| 360 |
|
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| 361 | dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH.
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| 362 | gl_REPLACE_LIMITS_H
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| 363 |
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| 364 | AC_SUBST([HAVE_C99_STDINT_H])
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| 365 | AC_SUBST([HAVE_SYS_BITYPES_H])
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| 366 | AC_SUBST([HAVE_SYS_INTTYPES_H])
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| 367 | AC_SUBST([STDINT_H])
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| 368 | AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"])
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| 369 | ])
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| 370 |
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| 371 | dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES)
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| 372 | dnl Determine the size of each of the given types in bits.
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| 373 | AC_DEFUN([gl_STDINT_BITSIZEOF],
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| 374 | [
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| 375 | dnl Use a shell loop, to avoid bloating configure, and
|
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| 376 | dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
|
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| 377 | dnl config.h.in,
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| 378 | dnl - extra AC_SUBST calls, so that the right substitutions are made.
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| 379 | m4_foreach_w([gltype], [$1],
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| 380 | [AH_TEMPLATE([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
|
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| 381 | [Define to the number of bits in type ']gltype['.])])
|
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| 382 | for gltype in $1 ; do
|
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| 383 | AC_CACHE_CHECK([for bit size of $gltype], [gl_cv_bitsizeof_${gltype}],
|
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| 384 | [AC_COMPUTE_INT([result], [sizeof ($gltype) * CHAR_BIT],
|
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| 385 | [$2
|
|---|
| 386 | #include <limits.h>], [result=unknown])
|
|---|
| 387 | eval gl_cv_bitsizeof_${gltype}=\$result
|
|---|
| 388 | ])
|
|---|
| 389 | eval result=\$gl_cv_bitsizeof_${gltype}
|
|---|
| 390 | if test $result = unknown; then
|
|---|
| 391 | dnl Use a nonempty default, because some compilers, such as IRIX 5 cc,
|
|---|
| 392 | dnl do a syntax check even on unused #if conditions and give an error
|
|---|
| 393 | dnl on valid C code like this:
|
|---|
| 394 | dnl #if 0
|
|---|
| 395 | dnl # if > 32
|
|---|
| 396 | dnl # endif
|
|---|
| 397 | dnl #endif
|
|---|
| 398 | result=0
|
|---|
| 399 | fi
|
|---|
| 400 | GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
|
|---|
| 401 | AC_DEFINE_UNQUOTED([BITSIZEOF_${GLTYPE}], [$result])
|
|---|
| 402 | eval BITSIZEOF_${GLTYPE}=\$result
|
|---|
| 403 | done
|
|---|
| 404 | m4_foreach_w([gltype], [$1],
|
|---|
| 405 | [AC_SUBST([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
|
|---|
| 406 | ])
|
|---|
| 407 |
|
|---|
| 408 | dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES)
|
|---|
| 409 | dnl Determine the signedness of each of the given types.
|
|---|
| 410 | dnl Define HAVE_SIGNED_TYPE if type is signed.
|
|---|
| 411 | AC_DEFUN([gl_CHECK_TYPES_SIGNED],
|
|---|
| 412 | [
|
|---|
| 413 | dnl Use a shell loop, to avoid bloating configure, and
|
|---|
| 414 | dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
|
|---|
| 415 | dnl config.h.in,
|
|---|
| 416 | dnl - extra AC_SUBST calls, so that the right substitutions are made.
|
|---|
| 417 | m4_foreach_w([gltype], [$1],
|
|---|
| 418 | [AH_TEMPLATE([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
|
|---|
| 419 | [Define to 1 if ']gltype[' is a signed integer type.])])
|
|---|
| 420 | for gltype in $1 ; do
|
|---|
| 421 | AC_CACHE_CHECK([whether $gltype is signed], [gl_cv_type_${gltype}_signed],
|
|---|
| 422 | [AC_COMPILE_IFELSE(
|
|---|
| 423 | [AC_LANG_PROGRAM([$2[
|
|---|
| 424 | int verify[2 * (($gltype) -1 < ($gltype) 0) - 1];]])],
|
|---|
| 425 | result=yes, result=no)
|
|---|
| 426 | eval gl_cv_type_${gltype}_signed=\$result
|
|---|
| 427 | ])
|
|---|
| 428 | eval result=\$gl_cv_type_${gltype}_signed
|
|---|
| 429 | GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
|
|---|
| 430 | if test "$result" = yes; then
|
|---|
| 431 | AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], [1])
|
|---|
| 432 | eval HAVE_SIGNED_${GLTYPE}=1
|
|---|
| 433 | else
|
|---|
| 434 | eval HAVE_SIGNED_${GLTYPE}=0
|
|---|
| 435 | fi
|
|---|
| 436 | done
|
|---|
| 437 | m4_foreach_w([gltype], [$1],
|
|---|
| 438 | [AC_SUBST([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
|
|---|
| 439 | ])
|
|---|
| 440 |
|
|---|
| 441 | dnl gl_INTEGER_TYPE_SUFFIX(TYPES, INCLUDES)
|
|---|
| 442 | dnl Determine the suffix to use for integer constants of the given types.
|
|---|
| 443 | dnl Define t_SUFFIX for each such type.
|
|---|
| 444 | AC_DEFUN([gl_INTEGER_TYPE_SUFFIX],
|
|---|
| 445 | [
|
|---|
| 446 | dnl Use a shell loop, to avoid bloating configure, and
|
|---|
| 447 | dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
|
|---|
| 448 | dnl config.h.in,
|
|---|
| 449 | dnl - extra AC_SUBST calls, so that the right substitutions are made.
|
|---|
| 450 | m4_foreach_w([gltype], [$1],
|
|---|
| 451 | [AH_TEMPLATE(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX],
|
|---|
| 452 | [Define to l, ll, u, ul, ull, etc., as suitable for
|
|---|
| 453 | constants of type ']gltype['.])])
|
|---|
| 454 | for gltype in $1 ; do
|
|---|
| 455 | AC_CACHE_CHECK([for $gltype integer literal suffix],
|
|---|
| 456 | [gl_cv_type_${gltype}_suffix],
|
|---|
| 457 | [eval gl_cv_type_${gltype}_suffix=no
|
|---|
| 458 | eval result=\$gl_cv_type_${gltype}_signed
|
|---|
| 459 | if test "$result" = yes; then
|
|---|
| 460 | glsufu=
|
|---|
| 461 | else
|
|---|
| 462 | glsufu=u
|
|---|
| 463 | fi
|
|---|
| 464 | for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do
|
|---|
| 465 | case $glsuf in
|
|---|
| 466 | '') gltype1='int';;
|
|---|
| 467 | l) gltype1='long int';;
|
|---|
| 468 | ll) gltype1='long long int';;
|
|---|
| 469 | i64) gltype1='__int64';;
|
|---|
| 470 | u) gltype1='unsigned int';;
|
|---|
| 471 | ul) gltype1='unsigned long int';;
|
|---|
| 472 | ull) gltype1='unsigned long long int';;
|
|---|
| 473 | ui64)gltype1='unsigned __int64';;
|
|---|
| 474 | esac
|
|---|
| 475 | AC_COMPILE_IFELSE(
|
|---|
| 476 | [AC_LANG_PROGRAM([$2[
|
|---|
| 477 | extern $gltype foo;
|
|---|
| 478 | extern $gltype1 foo;]])],
|
|---|
| 479 | [eval gl_cv_type_${gltype}_suffix=\$glsuf])
|
|---|
| 480 | eval result=\$gl_cv_type_${gltype}_suffix
|
|---|
| 481 | test "$result" != no && break
|
|---|
| 482 | done])
|
|---|
| 483 | GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
|
|---|
| 484 | eval result=\$gl_cv_type_${gltype}_suffix
|
|---|
| 485 | test "$result" = no && result=
|
|---|
| 486 | eval ${GLTYPE}_SUFFIX=\$result
|
|---|
| 487 | AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], [$result])
|
|---|
| 488 | done
|
|---|
| 489 | m4_foreach_w([gltype], [$1],
|
|---|
| 490 | [AC_SUBST(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])])
|
|---|
| 491 | ])
|
|---|
| 492 |
|
|---|
| 493 | dnl gl_STDINT_INCLUDES
|
|---|
| 494 | AC_DEFUN([gl_STDINT_INCLUDES],
|
|---|
| 495 | [[
|
|---|
| 496 | #include <stddef.h>
|
|---|
| 497 | #include <signal.h>
|
|---|
| 498 | #if HAVE_WCHAR_H
|
|---|
| 499 | # include <wchar.h>
|
|---|
| 500 | #endif
|
|---|
| 501 | ]])
|
|---|
| 502 |
|
|---|
| 503 | dnl gl_STDINT_TYPE_PROPERTIES
|
|---|
| 504 | dnl Compute HAVE_SIGNED_t, BITSIZEOF_t and t_SUFFIX, for all the types t
|
|---|
| 505 | dnl of interest to stdint.in.h.
|
|---|
| 506 | AC_DEFUN([gl_STDINT_TYPE_PROPERTIES],
|
|---|
| 507 | [
|
|---|
| 508 | AC_REQUIRE([gl_MULTIARCH])
|
|---|
| 509 | if test $APPLE_UNIVERSAL_BUILD = 0; then
|
|---|
| 510 | gl_STDINT_BITSIZEOF([ptrdiff_t size_t],
|
|---|
| 511 | [gl_STDINT_INCLUDES])
|
|---|
| 512 | fi
|
|---|
| 513 | gl_STDINT_BITSIZEOF([sig_atomic_t wchar_t wint_t],
|
|---|
| 514 | [gl_STDINT_INCLUDES])
|
|---|
| 515 | gl_CHECK_TYPES_SIGNED([sig_atomic_t wchar_t wint_t],
|
|---|
| 516 | [gl_STDINT_INCLUDES])
|
|---|
| 517 | gl_cv_type_ptrdiff_t_signed=yes
|
|---|
| 518 | gl_cv_type_size_t_signed=no
|
|---|
| 519 | if test $APPLE_UNIVERSAL_BUILD = 0; then
|
|---|
| 520 | gl_INTEGER_TYPE_SUFFIX([ptrdiff_t size_t],
|
|---|
| 521 | [gl_STDINT_INCLUDES])
|
|---|
| 522 | fi
|
|---|
| 523 | gl_INTEGER_TYPE_SUFFIX([sig_atomic_t wchar_t wint_t],
|
|---|
| 524 | [gl_STDINT_INCLUDES])
|
|---|
| 525 |
|
|---|
| 526 | dnl If wint_t is smaller than 'int', it cannot satisfy the ISO C 99
|
|---|
| 527 | dnl requirement that wint_t is "unchanged by default argument promotions".
|
|---|
| 528 | dnl In this case gnulib's <wchar.h> and <wctype.h> override wint_t.
|
|---|
| 529 | dnl Set the variable BITSIZEOF_WINT_T accordingly.
|
|---|
| 530 | if test $GNULIBHEADERS_OVERRIDE_WINT_T = 1; then
|
|---|
| 531 | BITSIZEOF_WINT_T=32
|
|---|
| 532 | fi
|
|---|
| 533 | ])
|
|---|
