Annotation of embedaddon/libiconv/srcm4/stdint.m4, revision 1.1.1.3
1.1.1.3 ! misho 1: # stdint.m4 serial 53
! 2: dnl Copyright (C) 2001-2019 Free Software Foundation, Inc.
1.1 misho 3: dnl This file is free software; the Free Software Foundation
4: dnl gives unlimited permission to copy and/or distribute it,
5: dnl with or without modifications, as long as this notice is preserved.
6:
7: dnl From Paul Eggert and Bruno Haible.
8: dnl Test whether <stdint.h> is supported or must be substituted.
9:
1.1.1.3 ! misho 10: AC_PREREQ([2.61])
! 11:
1.1.1.2 misho 12: AC_DEFUN_ONCE([gl_STDINT_H],
1.1 misho 13: [
14: AC_PREREQ([2.59])dnl
1.1.1.3 ! misho 15: AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
! 16:
! 17: AC_REQUIRE([gl_LIMITS_H])
! 18: AC_REQUIRE([gt_TYPE_WINT_T])
1.1 misho 19:
20: dnl Check for long long int and unsigned long long int.
21: AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
22: if test $ac_cv_type_long_long_int = yes; then
23: HAVE_LONG_LONG_INT=1
24: else
25: HAVE_LONG_LONG_INT=0
26: fi
27: AC_SUBST([HAVE_LONG_LONG_INT])
28: AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
29: if test $ac_cv_type_unsigned_long_long_int = yes; then
30: HAVE_UNSIGNED_LONG_LONG_INT=1
31: else
32: HAVE_UNSIGNED_LONG_LONG_INT=0
33: fi
34: AC_SUBST([HAVE_UNSIGNED_LONG_LONG_INT])
35:
1.1.1.2 misho 36: dnl Check for <wchar.h>, in the same way as gl_WCHAR_H does.
37: AC_CHECK_HEADERS_ONCE([wchar.h])
38: if test $ac_cv_header_wchar_h = yes; then
39: HAVE_WCHAR_H=1
40: else
41: HAVE_WCHAR_H=0
42: fi
43: AC_SUBST([HAVE_WCHAR_H])
44:
1.1 misho 45: dnl Check for <inttypes.h>.
46: dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h.
47: if test $ac_cv_header_inttypes_h = yes; then
48: HAVE_INTTYPES_H=1
49: else
50: HAVE_INTTYPES_H=0
51: fi
52: AC_SUBST([HAVE_INTTYPES_H])
53:
54: dnl Check for <sys/types.h>.
55: dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_sys_types_h.
56: if test $ac_cv_header_sys_types_h = yes; then
57: HAVE_SYS_TYPES_H=1
58: else
59: HAVE_SYS_TYPES_H=0
60: fi
61: AC_SUBST([HAVE_SYS_TYPES_H])
62:
63: gl_CHECK_NEXT_HEADERS([stdint.h])
64: if test $ac_cv_header_stdint_h = yes; then
65: HAVE_STDINT_H=1
66: else
67: HAVE_STDINT_H=0
68: fi
69: AC_SUBST([HAVE_STDINT_H])
70:
71: dnl Now see whether we need a substitute <stdint.h>.
72: if test $ac_cv_header_stdint_h = yes; then
73: AC_CACHE_CHECK([whether stdint.h conforms to C99],
74: [gl_cv_header_working_stdint_h],
75: [gl_cv_header_working_stdint_h=no
76: AC_COMPILE_IFELSE([
77: AC_LANG_PROGRAM([[
78: #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
1.1.1.3 ! misho 79: #define __STDC_CONSTANT_MACROS 1
! 80: #define __STDC_LIMIT_MACROS 1
1.1 misho 81: #include <stdint.h>
82: /* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>. */
83: #if !(defined WCHAR_MIN && defined WCHAR_MAX)
84: #error "WCHAR_MIN, WCHAR_MAX not defined in <stdint.h>"
85: #endif
86: ]
87: gl_STDINT_INCLUDES
88: [
89: #ifdef INT8_MAX
90: int8_t a1 = INT8_MAX;
91: int8_t a1min = INT8_MIN;
92: #endif
93: #ifdef INT16_MAX
94: int16_t a2 = INT16_MAX;
95: int16_t a2min = INT16_MIN;
96: #endif
97: #ifdef INT32_MAX
98: int32_t a3 = INT32_MAX;
99: int32_t a3min = INT32_MIN;
100: #endif
101: #ifdef INT64_MAX
102: int64_t a4 = INT64_MAX;
103: int64_t a4min = INT64_MIN;
104: #endif
105: #ifdef UINT8_MAX
106: uint8_t b1 = UINT8_MAX;
107: #else
108: typedef int b1[(unsigned char) -1 != 255 ? 1 : -1];
109: #endif
110: #ifdef UINT16_MAX
111: uint16_t b2 = UINT16_MAX;
112: #endif
113: #ifdef UINT32_MAX
114: uint32_t b3 = UINT32_MAX;
115: #endif
116: #ifdef UINT64_MAX
117: uint64_t b4 = UINT64_MAX;
118: #endif
119: int_least8_t c1 = INT8_C (0x7f);
120: int_least8_t c1max = INT_LEAST8_MAX;
121: int_least8_t c1min = INT_LEAST8_MIN;
122: int_least16_t c2 = INT16_C (0x7fff);
123: int_least16_t c2max = INT_LEAST16_MAX;
124: int_least16_t c2min = INT_LEAST16_MIN;
125: int_least32_t c3 = INT32_C (0x7fffffff);
126: int_least32_t c3max = INT_LEAST32_MAX;
127: int_least32_t c3min = INT_LEAST32_MIN;
128: int_least64_t c4 = INT64_C (0x7fffffffffffffff);
129: int_least64_t c4max = INT_LEAST64_MAX;
130: int_least64_t c4min = INT_LEAST64_MIN;
131: uint_least8_t d1 = UINT8_C (0xff);
132: uint_least8_t d1max = UINT_LEAST8_MAX;
133: uint_least16_t d2 = UINT16_C (0xffff);
134: uint_least16_t d2max = UINT_LEAST16_MAX;
135: uint_least32_t d3 = UINT32_C (0xffffffff);
136: uint_least32_t d3max = UINT_LEAST32_MAX;
137: uint_least64_t d4 = UINT64_C (0xffffffffffffffff);
138: uint_least64_t d4max = UINT_LEAST64_MAX;
139: int_fast8_t e1 = INT_FAST8_MAX;
140: int_fast8_t e1min = INT_FAST8_MIN;
141: int_fast16_t e2 = INT_FAST16_MAX;
142: int_fast16_t e2min = INT_FAST16_MIN;
143: int_fast32_t e3 = INT_FAST32_MAX;
144: int_fast32_t e3min = INT_FAST32_MIN;
145: int_fast64_t e4 = INT_FAST64_MAX;
146: int_fast64_t e4min = INT_FAST64_MIN;
147: uint_fast8_t f1 = UINT_FAST8_MAX;
148: uint_fast16_t f2 = UINT_FAST16_MAX;
149: uint_fast32_t f3 = UINT_FAST32_MAX;
150: uint_fast64_t f4 = UINT_FAST64_MAX;
151: #ifdef INTPTR_MAX
152: intptr_t g = INTPTR_MAX;
153: intptr_t gmin = INTPTR_MIN;
154: #endif
155: #ifdef UINTPTR_MAX
156: uintptr_t h = UINTPTR_MAX;
157: #endif
158: intmax_t i = INTMAX_MAX;
159: uintmax_t j = UINTMAX_MAX;
160:
1.1.1.3 ! misho 161: /* Check that SIZE_MAX has the correct type, if possible. */
! 162: #if 201112 <= __STDC_VERSION__
! 163: int k = _Generic (SIZE_MAX, size_t: 0);
! 164: #elif (2 <= __GNUC__ || defined __IBM__TYPEOF__ \
! 165: || (0x5110 <= __SUNPRO_C && !__STDC__))
! 166: extern size_t k;
! 167: extern __typeof__ (SIZE_MAX) k;
! 168: #endif
! 169:
1.1 misho 170: #include <limits.h> /* for CHAR_BIT */
171: #define TYPE_MINIMUM(t) \
1.1.1.2 misho 172: ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t)))
1.1 misho 173: #define TYPE_MAXIMUM(t) \
1.1.1.2 misho 174: ((t) ((t) 0 < (t) -1 \
175: ? (t) -1 \
176: : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
1.1 misho 177: struct s {
178: int check_PTRDIFF:
179: PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t)
180: && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t)
181: ? 1 : -1;
182: /* Detect bug in FreeBSD 6.0 / ia64. */
183: int check_SIG_ATOMIC:
184: SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t)
185: && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t)
186: ? 1 : -1;
187: int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1;
188: int check_WCHAR:
189: WCHAR_MIN == TYPE_MINIMUM (wchar_t)
190: && WCHAR_MAX == TYPE_MAXIMUM (wchar_t)
191: ? 1 : -1;
192: /* Detect bug in mingw. */
193: int check_WINT:
194: WINT_MIN == TYPE_MINIMUM (wint_t)
195: && WINT_MAX == TYPE_MAXIMUM (wint_t)
196: ? 1 : -1;
197:
198: /* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others. */
199: int check_UINT8_C:
200: (-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1;
201: int check_UINT16_C:
202: (-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1;
203:
204: /* Detect bugs in OpenBSD 3.9 stdint.h. */
205: #ifdef UINT8_MAX
206: int check_uint8: (uint8_t) -1 == UINT8_MAX ? 1 : -1;
207: #endif
208: #ifdef UINT16_MAX
209: int check_uint16: (uint16_t) -1 == UINT16_MAX ? 1 : -1;
210: #endif
211: #ifdef UINT32_MAX
212: int check_uint32: (uint32_t) -1 == UINT32_MAX ? 1 : -1;
213: #endif
214: #ifdef UINT64_MAX
215: int check_uint64: (uint64_t) -1 == UINT64_MAX ? 1 : -1;
216: #endif
217: int check_uint_least8: (uint_least8_t) -1 == UINT_LEAST8_MAX ? 1 : -1;
218: int check_uint_least16: (uint_least16_t) -1 == UINT_LEAST16_MAX ? 1 : -1;
219: int check_uint_least32: (uint_least32_t) -1 == UINT_LEAST32_MAX ? 1 : -1;
220: int check_uint_least64: (uint_least64_t) -1 == UINT_LEAST64_MAX ? 1 : -1;
221: int check_uint_fast8: (uint_fast8_t) -1 == UINT_FAST8_MAX ? 1 : -1;
222: int check_uint_fast16: (uint_fast16_t) -1 == UINT_FAST16_MAX ? 1 : -1;
223: int check_uint_fast32: (uint_fast32_t) -1 == UINT_FAST32_MAX ? 1 : -1;
224: int check_uint_fast64: (uint_fast64_t) -1 == UINT_FAST64_MAX ? 1 : -1;
225: int check_uintptr: (uintptr_t) -1 == UINTPTR_MAX ? 1 : -1;
226: int check_uintmax: (uintmax_t) -1 == UINTMAX_MAX ? 1 : -1;
227: int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1;
228: };
229: ]])],
230: [dnl Determine whether the various *_MIN, *_MAX macros are usable
231: dnl in preprocessor expression. We could do it by compiling a test
232: dnl program for each of these macros. It is faster to run a program
233: dnl that inspects the macro expansion.
234: dnl This detects a bug on HP-UX 11.23/ia64.
235: AC_RUN_IFELSE([
236: AC_LANG_PROGRAM([[
237: #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
1.1.1.3 ! misho 238: #define __STDC_CONSTANT_MACROS 1
! 239: #define __STDC_LIMIT_MACROS 1
1.1 misho 240: #include <stdint.h>
241: ]
242: gl_STDINT_INCLUDES
243: [
244: #include <stdio.h>
245: #include <string.h>
246: #define MVAL(macro) MVAL1(macro)
247: #define MVAL1(expression) #expression
248: static const char *macro_values[] =
249: {
250: #ifdef INT8_MAX
251: MVAL (INT8_MAX),
252: #endif
253: #ifdef INT16_MAX
254: MVAL (INT16_MAX),
255: #endif
256: #ifdef INT32_MAX
257: MVAL (INT32_MAX),
258: #endif
259: #ifdef INT64_MAX
260: MVAL (INT64_MAX),
261: #endif
262: #ifdef UINT8_MAX
263: MVAL (UINT8_MAX),
264: #endif
265: #ifdef UINT16_MAX
266: MVAL (UINT16_MAX),
267: #endif
268: #ifdef UINT32_MAX
269: MVAL (UINT32_MAX),
270: #endif
271: #ifdef UINT64_MAX
272: MVAL (UINT64_MAX),
273: #endif
274: NULL
275: };
276: ]], [[
277: const char **mv;
278: for (mv = macro_values; *mv != NULL; mv++)
279: {
280: const char *value = *mv;
281: /* Test whether it looks like a cast expression. */
282: if (strncmp (value, "((unsigned int)"/*)*/, 15) == 0
283: || strncmp (value, "((unsigned short)"/*)*/, 17) == 0
284: || strncmp (value, "((unsigned char)"/*)*/, 16) == 0
285: || strncmp (value, "((int)"/*)*/, 6) == 0
286: || strncmp (value, "((signed short)"/*)*/, 15) == 0
287: || strncmp (value, "((signed char)"/*)*/, 14) == 0)
1.1.1.2 misho 288: return mv - macro_values + 1;
1.1 misho 289: }
290: return 0;
291: ]])],
292: [gl_cv_header_working_stdint_h=yes],
293: [],
1.1.1.3 ! misho 294: [case "$host_os" in
! 295: # Guess yes on native Windows.
! 296: mingw*) gl_cv_header_working_stdint_h="guessing yes" ;;
! 297: # In general, assume it works.
! 298: *) gl_cv_header_working_stdint_h="guessing yes" ;;
! 299: esac
1.1 misho 300: ])
301: ])
302: ])
303: fi
304:
1.1.1.3 ! misho 305: HAVE_C99_STDINT_H=0
! 306: HAVE_SYS_BITYPES_H=0
! 307: HAVE_SYS_INTTYPES_H=0
! 308: STDINT_H=stdint.h
! 309: case "$gl_cv_header_working_stdint_h" in
! 310: *yes)
! 311: HAVE_C99_STDINT_H=1
! 312: dnl Now see whether the system <stdint.h> works without
! 313: dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined.
! 314: AC_CACHE_CHECK([whether stdint.h predates C++11],
! 315: [gl_cv_header_stdint_predates_cxx11_h],
! 316: [gl_cv_header_stdint_predates_cxx11_h=yes
! 317: AC_COMPILE_IFELSE([
! 318: AC_LANG_PROGRAM([[
! 319: #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
! 320: #include <stdint.h>
! 321: ]
! 322: gl_STDINT_INCLUDES
! 323: [
! 324: intmax_t im = INTMAX_MAX;
! 325: int32_t i32 = INT32_C (0x7fffffff);
! 326: ]])],
! 327: [gl_cv_header_stdint_predates_cxx11_h=no])])
! 328:
! 329: if test "$gl_cv_header_stdint_predates_cxx11_h" = yes; then
! 330: AC_DEFINE([__STDC_CONSTANT_MACROS], [1],
! 331: [Define to 1 if the system <stdint.h> predates C++11.])
! 332: AC_DEFINE([__STDC_LIMIT_MACROS], [1],
! 333: [Define to 1 if the system <stdint.h> predates C++11.])
! 334: fi
! 335: AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.],
! 336: [gl_cv_header_stdint_width],
! 337: [gl_cv_header_stdint_width=no
! 338: AC_COMPILE_IFELSE(
! 339: [AC_LANG_PROGRAM([[
! 340: /* Work if build is not clean. */
! 341: #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1
! 342: #ifndef __STDC_WANT_IEC_60559_BFP_EXT__
! 343: #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
! 344: #endif
! 345: #include <stdint.h>
! 346: ]gl_STDINT_INCLUDES[
! 347: int iw = UINTMAX_WIDTH;
! 348: ]])],
! 349: [gl_cv_header_stdint_width=yes])])
! 350: if test "$gl_cv_header_stdint_width" = yes; then
! 351: STDINT_H=
! 352: fi
! 353: ;;
! 354: *)
! 355: dnl Check for <sys/inttypes.h>, and for
! 356: dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5).
! 357: AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h])
! 358: if test $ac_cv_header_sys_inttypes_h = yes; then
! 359: HAVE_SYS_INTTYPES_H=1
! 360: fi
! 361: if test $ac_cv_header_sys_bitypes_h = yes; then
! 362: HAVE_SYS_BITYPES_H=1
! 363: fi
! 364: gl_STDINT_TYPE_PROPERTIES
! 365: ;;
! 366: esac
! 367:
! 368: dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH.
! 369: gl_REPLACE_LIMITS_H
! 370:
! 371: AC_SUBST([HAVE_C99_STDINT_H])
! 372: AC_SUBST([HAVE_SYS_BITYPES_H])
! 373: AC_SUBST([HAVE_SYS_INTTYPES_H])
1.1 misho 374: AC_SUBST([STDINT_H])
1.1.1.2 misho 375: AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"])
1.1 misho 376: ])
377:
378: dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES)
379: dnl Determine the size of each of the given types in bits.
380: AC_DEFUN([gl_STDINT_BITSIZEOF],
381: [
382: dnl Use a shell loop, to avoid bloating configure, and
383: dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
384: dnl config.h.in,
385: dnl - extra AC_SUBST calls, so that the right substitutions are made.
386: m4_foreach_w([gltype], [$1],
1.1.1.2 misho 387: [AH_TEMPLATE([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
1.1 misho 388: [Define to the number of bits in type ']gltype['.])])
389: for gltype in $1 ; do
390: AC_CACHE_CHECK([for bit size of $gltype], [gl_cv_bitsizeof_${gltype}],
391: [AC_COMPUTE_INT([result], [sizeof ($gltype) * CHAR_BIT],
392: [$2
393: #include <limits.h>], [result=unknown])
394: eval gl_cv_bitsizeof_${gltype}=\$result
395: ])
396: eval result=\$gl_cv_bitsizeof_${gltype}
397: if test $result = unknown; then
398: dnl Use a nonempty default, because some compilers, such as IRIX 5 cc,
399: dnl do a syntax check even on unused #if conditions and give an error
400: dnl on valid C code like this:
401: dnl #if 0
402: dnl # if > 32
403: dnl # endif
404: dnl #endif
405: result=0
406: fi
407: GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
408: AC_DEFINE_UNQUOTED([BITSIZEOF_${GLTYPE}], [$result])
409: eval BITSIZEOF_${GLTYPE}=\$result
410: done
411: m4_foreach_w([gltype], [$1],
1.1.1.2 misho 412: [AC_SUBST([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
1.1 misho 413: ])
414:
415: dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES)
416: dnl Determine the signedness of each of the given types.
417: dnl Define HAVE_SIGNED_TYPE if type is signed.
418: AC_DEFUN([gl_CHECK_TYPES_SIGNED],
419: [
420: dnl Use a shell loop, to avoid bloating configure, and
421: dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
422: dnl config.h.in,
423: dnl - extra AC_SUBST calls, so that the right substitutions are made.
424: m4_foreach_w([gltype], [$1],
1.1.1.2 misho 425: [AH_TEMPLATE([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]),
1.1 misho 426: [Define to 1 if ']gltype[' is a signed integer type.])])
427: for gltype in $1 ; do
428: AC_CACHE_CHECK([whether $gltype is signed], [gl_cv_type_${gltype}_signed],
429: [AC_COMPILE_IFELSE(
430: [AC_LANG_PROGRAM([$2[
431: int verify[2 * (($gltype) -1 < ($gltype) 0) - 1];]])],
432: result=yes, result=no)
433: eval gl_cv_type_${gltype}_signed=\$result
434: ])
435: eval result=\$gl_cv_type_${gltype}_signed
436: GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
437: if test "$result" = yes; then
438: AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], [1])
439: eval HAVE_SIGNED_${GLTYPE}=1
440: else
441: eval HAVE_SIGNED_${GLTYPE}=0
442: fi
443: done
444: m4_foreach_w([gltype], [$1],
1.1.1.2 misho 445: [AC_SUBST([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))])
1.1 misho 446: ])
447:
448: dnl gl_INTEGER_TYPE_SUFFIX(TYPES, INCLUDES)
449: dnl Determine the suffix to use for integer constants of the given types.
450: dnl Define t_SUFFIX for each such type.
451: AC_DEFUN([gl_INTEGER_TYPE_SUFFIX],
452: [
453: dnl Use a shell loop, to avoid bloating configure, and
454: dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into
455: dnl config.h.in,
456: dnl - extra AC_SUBST calls, so that the right substitutions are made.
457: m4_foreach_w([gltype], [$1],
1.1.1.2 misho 458: [AH_TEMPLATE(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX],
1.1 misho 459: [Define to l, ll, u, ul, ull, etc., as suitable for
460: constants of type ']gltype['.])])
461: for gltype in $1 ; do
462: AC_CACHE_CHECK([for $gltype integer literal suffix],
463: [gl_cv_type_${gltype}_suffix],
464: [eval gl_cv_type_${gltype}_suffix=no
465: eval result=\$gl_cv_type_${gltype}_signed
466: if test "$result" = yes; then
467: glsufu=
468: else
469: glsufu=u
470: fi
471: for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do
472: case $glsuf in
473: '') gltype1='int';;
1.1.1.2 misho 474: l) gltype1='long int';;
475: ll) gltype1='long long int';;
476: i64) gltype1='__int64';;
477: u) gltype1='unsigned int';;
478: ul) gltype1='unsigned long int';;
479: ull) gltype1='unsigned long long int';;
1.1 misho 480: ui64)gltype1='unsigned __int64';;
481: esac
482: AC_COMPILE_IFELSE(
483: [AC_LANG_PROGRAM([$2[
484: extern $gltype foo;
485: extern $gltype1 foo;]])],
486: [eval gl_cv_type_${gltype}_suffix=\$glsuf])
487: eval result=\$gl_cv_type_${gltype}_suffix
488: test "$result" != no && break
489: done])
490: GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
491: eval result=\$gl_cv_type_${gltype}_suffix
492: test "$result" = no && result=
493: eval ${GLTYPE}_SUFFIX=\$result
494: AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], [$result])
495: done
496: m4_foreach_w([gltype], [$1],
1.1.1.2 misho 497: [AC_SUBST(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])])
1.1 misho 498: ])
499:
500: dnl gl_STDINT_INCLUDES
501: AC_DEFUN([gl_STDINT_INCLUDES],
502: [[
503: /* BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
504: included before <wchar.h>. */
505: #include <stddef.h>
506: #include <signal.h>
507: #if HAVE_WCHAR_H
508: # include <stdio.h>
509: # include <time.h>
510: # include <wchar.h>
511: #endif
512: ]])
513:
514: dnl gl_STDINT_TYPE_PROPERTIES
515: dnl Compute HAVE_SIGNED_t, BITSIZEOF_t and t_SUFFIX, for all the types t
516: dnl of interest to stdint.in.h.
517: AC_DEFUN([gl_STDINT_TYPE_PROPERTIES],
518: [
519: AC_REQUIRE([gl_MULTIARCH])
520: if test $APPLE_UNIVERSAL_BUILD = 0; then
521: gl_STDINT_BITSIZEOF([ptrdiff_t size_t],
522: [gl_STDINT_INCLUDES])
523: fi
524: gl_STDINT_BITSIZEOF([sig_atomic_t wchar_t wint_t],
525: [gl_STDINT_INCLUDES])
526: gl_CHECK_TYPES_SIGNED([sig_atomic_t wchar_t wint_t],
527: [gl_STDINT_INCLUDES])
528: gl_cv_type_ptrdiff_t_signed=yes
529: gl_cv_type_size_t_signed=no
530: if test $APPLE_UNIVERSAL_BUILD = 0; then
531: gl_INTEGER_TYPE_SUFFIX([ptrdiff_t size_t],
532: [gl_STDINT_INCLUDES])
533: fi
534: gl_INTEGER_TYPE_SUFFIX([sig_atomic_t wchar_t wint_t],
535: [gl_STDINT_INCLUDES])
536:
1.1.1.3 ! misho 537: dnl If wint_t is smaller than 'int', it cannot satisfy the ISO C 99
! 538: dnl requirement that wint_t is "unchanged by default argument promotions".
! 539: dnl In this case gnulib's <wchar.h> and <wctype.h> override wint_t.
! 540: dnl Set the variable BITSIZEOF_WINT_T accordingly.
! 541: if test $GNULIB_OVERRIDES_WINT_T = 1; then
! 542: BITSIZEOF_WINT_T=32
! 543: fi
1.1 misho 544: ])
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to stdint.m4 CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / libiconv / srcm4