HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| f0007cad LC |
1 | # printf.m4 serial 48 |
| 2 | dnl Copyright (C) 2003, 2007-2012 Free Software Foundation, Inc. | |
| c4b681fd LC |
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 Test whether the *printf family of functions supports the 'j', 'z', 't', | |
| 8 | dnl 'L' size specifiers. (ISO C99, POSIX:2001) | |
| 9 | dnl Result is gl_cv_func_printf_sizes_c99. | |
| 10 | ||
| 11 | AC_DEFUN([gl_PRINTF_SIZES_C99], | |
| 12 | [ | |
| 13 | AC_REQUIRE([AC_PROG_CC]) | |
| 14 | AC_REQUIRE([gl_AC_HEADER_STDINT_H]) | |
| 15 | AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) | |
| 16 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 17 | AC_CACHE_CHECK([whether printf supports size specifiers as in C99], | |
| 18 | [gl_cv_func_printf_sizes_c99], | |
| 19 | [ | |
| 9157d901 LC |
20 | AC_RUN_IFELSE( |
| 21 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
22 | #include <stddef.h> |
| 23 | #include <stdio.h> | |
| 24 | #include <string.h> | |
| 25 | #include <sys/types.h> | |
| 26 | #if HAVE_STDINT_H_WITH_UINTMAX | |
| 27 | # include <stdint.h> | |
| 28 | #endif | |
| 29 | #if HAVE_INTTYPES_H_WITH_UINTMAX | |
| 30 | # include <inttypes.h> | |
| 31 | #endif | |
| 32 | static char buf[100]; | |
| 33 | int main () | |
| 34 | { | |
| 0f00f2c3 | 35 | int result = 0; |
| c4b681fd LC |
36 | #if HAVE_STDINT_H_WITH_UINTMAX || HAVE_INTTYPES_H_WITH_UINTMAX |
| 37 | buf[0] = '\0'; | |
| 38 | if (sprintf (buf, "%ju %d", (uintmax_t) 12345671, 33, 44, 55) < 0 | |
| 39 | || strcmp (buf, "12345671 33") != 0) | |
| 0f00f2c3 | 40 | result |= 1; |
| c4b681fd LC |
41 | #endif |
| 42 | buf[0] = '\0'; | |
| 43 | if (sprintf (buf, "%zu %d", (size_t) 12345672, 33, 44, 55) < 0 | |
| 44 | || strcmp (buf, "12345672 33") != 0) | |
| 0f00f2c3 | 45 | result |= 2; |
| c4b681fd LC |
46 | buf[0] = '\0'; |
| 47 | if (sprintf (buf, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55) < 0 | |
| 48 | || strcmp (buf, "12345673 33") != 0) | |
| 0f00f2c3 | 49 | result |= 4; |
| c4b681fd LC |
50 | buf[0] = '\0'; |
| 51 | if (sprintf (buf, "%Lg %d", (long double) 1.5, 33, 44, 55) < 0 | |
| 52 | || strcmp (buf, "1.5 33") != 0) | |
| 0f00f2c3 LC |
53 | result |= 8; |
| 54 | return result; | |
| 9157d901 LC |
55 | }]])], |
| 56 | [gl_cv_func_printf_sizes_c99=yes], | |
| 57 | [gl_cv_func_printf_sizes_c99=no], | |
| 58 | [ | |
| c4b681fd | 59 | changequote(,)dnl |
| 9157d901 LC |
60 | case "$host_os" in |
| 61 | # Guess yes on glibc systems. | |
| 62 | *-gnu*) gl_cv_func_printf_sizes_c99="guessing yes";; | |
| 63 | # Guess yes on FreeBSD >= 5. | |
| 64 | freebsd[1-4]*) gl_cv_func_printf_sizes_c99="guessing no";; | |
| 65 | freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";; | |
| 66 | # Guess yes on MacOS X >= 10.3. | |
| 67 | darwin[1-6].*) gl_cv_func_printf_sizes_c99="guessing no";; | |
| 68 | darwin*) gl_cv_func_printf_sizes_c99="guessing yes";; | |
| 69 | # Guess yes on OpenBSD >= 3.9. | |
| 70 | openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) | |
| 71 | gl_cv_func_printf_sizes_c99="guessing no";; | |
| 72 | openbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; | |
| 73 | # Guess yes on Solaris >= 2.10. | |
| 49114fd4 LC |
74 | solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";; |
| 75 | solaris*) gl_cv_func_printf_sizes_c99="guessing no";; | |
| 9157d901 LC |
76 | # Guess yes on NetBSD >= 3. |
| 77 | netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) | |
| 78 | gl_cv_func_printf_sizes_c99="guessing no";; | |
| 79 | netbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; | |
| 80 | # If we don't know, assume the worst. | |
| 81 | *) gl_cv_func_printf_sizes_c99="guessing no";; | |
| 82 | esac | |
| c4b681fd | 83 | changequote([,])dnl |
| 9157d901 | 84 | ]) |
| c4b681fd LC |
85 | ]) |
| 86 | ]) | |
| 87 | ||
| 88 | dnl Test whether the *printf family of functions supports 'long double' | |
| 89 | dnl arguments together with the 'L' size specifier. (ISO C99, POSIX:2001) | |
| 90 | dnl Result is gl_cv_func_printf_long_double. | |
| 91 | ||
| 92 | AC_DEFUN([gl_PRINTF_LONG_DOUBLE], | |
| 93 | [ | |
| 94 | AC_REQUIRE([AC_PROG_CC]) | |
| 95 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 96 | AC_CACHE_CHECK([whether printf supports 'long double' arguments], | |
| 97 | [gl_cv_func_printf_long_double], | |
| 98 | [ | |
| 9157d901 LC |
99 | AC_RUN_IFELSE( |
| 100 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
101 | #include <stdio.h> |
| 102 | #include <string.h> | |
| 103 | static char buf[10000]; | |
| 104 | int main () | |
| 105 | { | |
| 0f00f2c3 | 106 | int result = 0; |
| c4b681fd LC |
107 | buf[0] = '\0'; |
| 108 | if (sprintf (buf, "%Lf %d", 1.75L, 33, 44, 55) < 0 | |
| 109 | || strcmp (buf, "1.750000 33") != 0) | |
| 0f00f2c3 | 110 | result |= 1; |
| c4b681fd LC |
111 | buf[0] = '\0'; |
| 112 | if (sprintf (buf, "%Le %d", 1.75L, 33, 44, 55) < 0 | |
| 113 | || strcmp (buf, "1.750000e+00 33") != 0) | |
| 0f00f2c3 | 114 | result |= 2; |
| c4b681fd LC |
115 | buf[0] = '\0'; |
| 116 | if (sprintf (buf, "%Lg %d", 1.75L, 33, 44, 55) < 0 | |
| 117 | || strcmp (buf, "1.75 33") != 0) | |
| 0f00f2c3 LC |
118 | result |= 4; |
| 119 | return result; | |
| 9157d901 LC |
120 | }]])], |
| 121 | [gl_cv_func_printf_long_double=yes], | |
| 122 | [gl_cv_func_printf_long_double=no], | |
| 123 | [ | |
| c4b681fd | 124 | changequote(,)dnl |
| 9157d901 LC |
125 | case "$host_os" in |
| 126 | beos*) gl_cv_func_printf_long_double="guessing no";; | |
| 127 | mingw* | pw*) gl_cv_func_printf_long_double="guessing no";; | |
| 128 | *) gl_cv_func_printf_long_double="guessing yes";; | |
| 129 | esac | |
| c4b681fd | 130 | changequote([,])dnl |
| 9157d901 | 131 | ]) |
| c4b681fd LC |
132 | ]) |
| 133 | ]) | |
| 134 | ||
| 135 | dnl Test whether the *printf family of functions supports infinite and NaN | |
| 136 | dnl 'double' arguments and negative zero arguments in the %f, %e, %g | |
| 137 | dnl directives. (ISO C99, POSIX:2001) | |
| 138 | dnl Result is gl_cv_func_printf_infinite. | |
| 139 | ||
| 140 | AC_DEFUN([gl_PRINTF_INFINITE], | |
| 141 | [ | |
| 142 | AC_REQUIRE([AC_PROG_CC]) | |
| 143 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 144 | AC_CACHE_CHECK([whether printf supports infinite 'double' arguments], | |
| 145 | [gl_cv_func_printf_infinite], | |
| 146 | [ | |
| 9157d901 LC |
147 | AC_RUN_IFELSE( |
| 148 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
149 | #include <stdio.h> |
| 150 | #include <string.h> | |
| 151 | static int | |
| 152 | strisnan (const char *string, size_t start_index, size_t end_index) | |
| 153 | { | |
| 154 | if (start_index < end_index) | |
| 155 | { | |
| 156 | if (string[start_index] == '-') | |
| 157 | start_index++; | |
| 158 | if (start_index + 3 <= end_index | |
| 159 | && memcmp (string + start_index, "nan", 3) == 0) | |
| 160 | { | |
| 161 | start_index += 3; | |
| 162 | if (start_index == end_index | |
| 163 | || (string[start_index] == '(' && string[end_index - 1] == ')')) | |
| 164 | return 1; | |
| 165 | } | |
| 166 | } | |
| 167 | return 0; | |
| 168 | } | |
| 169 | static int | |
| 170 | have_minus_zero () | |
| 171 | { | |
| 172 | static double plus_zero = 0.0; | |
| 173 | double minus_zero = - plus_zero; | |
| 174 | return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0; | |
| 175 | } | |
| 176 | static char buf[10000]; | |
| 177 | static double zero = 0.0; | |
| 178 | int main () | |
| 179 | { | |
| 0f00f2c3 | 180 | int result = 0; |
| 35428fb6 | 181 | if (sprintf (buf, "%f", 1.0 / zero) < 0 |
| c4b681fd | 182 | || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) |
| 0f00f2c3 | 183 | result |= 1; |
| 35428fb6 | 184 | if (sprintf (buf, "%f", -1.0 / zero) < 0 |
| c4b681fd | 185 | || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) |
| 0f00f2c3 | 186 | result |= 1; |
| c4b681fd LC |
187 | if (sprintf (buf, "%f", zero / zero) < 0 |
| 188 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 189 | result |= 2; |
| 35428fb6 | 190 | if (sprintf (buf, "%e", 1.0 / zero) < 0 |
| c4b681fd | 191 | || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) |
| 0f00f2c3 | 192 | result |= 4; |
| 35428fb6 | 193 | if (sprintf (buf, "%e", -1.0 / zero) < 0 |
| c4b681fd | 194 | || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) |
| 0f00f2c3 | 195 | result |= 4; |
| c4b681fd LC |
196 | if (sprintf (buf, "%e", zero / zero) < 0 |
| 197 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 198 | result |= 8; |
| 35428fb6 | 199 | if (sprintf (buf, "%g", 1.0 / zero) < 0 |
| c4b681fd | 200 | || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) |
| 0f00f2c3 | 201 | result |= 16; |
| 35428fb6 | 202 | if (sprintf (buf, "%g", -1.0 / zero) < 0 |
| c4b681fd | 203 | || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) |
| 0f00f2c3 | 204 | result |= 16; |
| c4b681fd LC |
205 | if (sprintf (buf, "%g", zero / zero) < 0 |
| 206 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 207 | result |= 32; |
| c4b681fd LC |
208 | /* This test fails on HP-UX 10.20. */ |
| 209 | if (have_minus_zero ()) | |
| 210 | if (sprintf (buf, "%g", - zero) < 0 | |
| 211 | || strcmp (buf, "-0") != 0) | |
| 0f00f2c3 LC |
212 | result |= 64; |
| 213 | return result; | |
| 9157d901 LC |
214 | }]])], |
| 215 | [gl_cv_func_printf_infinite=yes], | |
| 216 | [gl_cv_func_printf_infinite=no], | |
| 217 | [ | |
| c4b681fd | 218 | changequote(,)dnl |
| 9157d901 LC |
219 | case "$host_os" in |
| 220 | # Guess yes on glibc systems. | |
| 221 | *-gnu*) gl_cv_func_printf_infinite="guessing yes";; | |
| 222 | # Guess yes on FreeBSD >= 6. | |
| 223 | freebsd[1-5]*) gl_cv_func_printf_infinite="guessing no";; | |
| 224 | freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";; | |
| 225 | # Guess yes on MacOS X >= 10.3. | |
| 226 | darwin[1-6].*) gl_cv_func_printf_infinite="guessing no";; | |
| 227 | darwin*) gl_cv_func_printf_infinite="guessing yes";; | |
| 228 | # Guess yes on HP-UX >= 11. | |
| 229 | hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite="guessing no";; | |
| 230 | hpux*) gl_cv_func_printf_infinite="guessing yes";; | |
| 231 | # Guess yes on NetBSD >= 3. | |
| 232 | netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) | |
| 233 | gl_cv_func_printf_infinite="guessing no";; | |
| 234 | netbsd*) gl_cv_func_printf_infinite="guessing yes";; | |
| 235 | # Guess yes on BeOS. | |
| 236 | beos*) gl_cv_func_printf_infinite="guessing yes";; | |
| 237 | # If we don't know, assume the worst. | |
| 238 | *) gl_cv_func_printf_infinite="guessing no";; | |
| 239 | esac | |
| c4b681fd | 240 | changequote([,])dnl |
| 9157d901 | 241 | ]) |
| c4b681fd LC |
242 | ]) |
| 243 | ]) | |
| 244 | ||
| 245 | dnl Test whether the *printf family of functions supports infinite and NaN | |
| 246 | dnl 'long double' arguments in the %f, %e, %g directives. (ISO C99, POSIX:2001) | |
| 247 | dnl Result is gl_cv_func_printf_infinite_long_double. | |
| 248 | ||
| 249 | AC_DEFUN([gl_PRINTF_INFINITE_LONG_DOUBLE], | |
| 250 | [ | |
| 251 | AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) | |
| 252 | AC_REQUIRE([AC_PROG_CC]) | |
| 253 | AC_REQUIRE([gl_BIGENDIAN]) | |
| 35428fb6 | 254 | AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE]) |
| c4b681fd LC |
255 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles |
| 256 | dnl The user can set or unset the variable gl_printf_safe to indicate | |
| 257 | dnl that he wishes a safe handling of non-IEEE-754 'long double' values. | |
| 258 | if test -n "$gl_printf_safe"; then | |
| 259 | AC_DEFINE([CHECK_PRINTF_SAFE], [1], | |
| 260 | [Define if you wish *printf() functions that have a safe handling of | |
| 261 | non-IEEE-754 'long double' values.]) | |
| 262 | fi | |
| 263 | case "$gl_cv_func_printf_long_double" in | |
| 264 | *yes) | |
| 265 | AC_CACHE_CHECK([whether printf supports infinite 'long double' arguments], | |
| 266 | [gl_cv_func_printf_infinite_long_double], | |
| 267 | [ | |
| 9157d901 LC |
268 | AC_RUN_IFELSE( |
| 269 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
270 | ]GL_NOCRASH[ |
| 271 | #include <float.h> | |
| 272 | #include <stdio.h> | |
| 273 | #include <string.h> | |
| 274 | static int | |
| 275 | strisnan (const char *string, size_t start_index, size_t end_index) | |
| 276 | { | |
| 277 | if (start_index < end_index) | |
| 278 | { | |
| 279 | if (string[start_index] == '-') | |
| 280 | start_index++; | |
| 281 | if (start_index + 3 <= end_index | |
| 282 | && memcmp (string + start_index, "nan", 3) == 0) | |
| 283 | { | |
| 284 | start_index += 3; | |
| 285 | if (start_index == end_index | |
| 286 | || (string[start_index] == '(' && string[end_index - 1] == ')')) | |
| 287 | return 1; | |
| 288 | } | |
| 289 | } | |
| 290 | return 0; | |
| 291 | } | |
| 292 | static char buf[10000]; | |
| 293 | static long double zeroL = 0.0L; | |
| 294 | int main () | |
| 295 | { | |
| 0f00f2c3 | 296 | int result = 0; |
| c4b681fd | 297 | nocrash_init(); |
| 35428fb6 | 298 | if (sprintf (buf, "%Lf", 1.0L / zeroL) < 0 |
| c4b681fd | 299 | || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) |
| 0f00f2c3 | 300 | result |= 1; |
| 35428fb6 | 301 | if (sprintf (buf, "%Lf", -1.0L / zeroL) < 0 |
| c4b681fd | 302 | || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) |
| 0f00f2c3 | 303 | result |= 1; |
| c4b681fd LC |
304 | if (sprintf (buf, "%Lf", zeroL / zeroL) < 0 |
| 305 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 306 | result |= 1; |
| 35428fb6 | 307 | if (sprintf (buf, "%Le", 1.0L / zeroL) < 0 |
| c4b681fd | 308 | || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) |
| 0f00f2c3 | 309 | result |= 1; |
| 35428fb6 | 310 | if (sprintf (buf, "%Le", -1.0L / zeroL) < 0 |
| c4b681fd | 311 | || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) |
| 0f00f2c3 | 312 | result |= 1; |
| c4b681fd LC |
313 | if (sprintf (buf, "%Le", zeroL / zeroL) < 0 |
| 314 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 315 | result |= 1; |
| 35428fb6 | 316 | if (sprintf (buf, "%Lg", 1.0L / zeroL) < 0 |
| c4b681fd | 317 | || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) |
| 0f00f2c3 | 318 | result |= 1; |
| 35428fb6 | 319 | if (sprintf (buf, "%Lg", -1.0L / zeroL) < 0 |
| c4b681fd | 320 | || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) |
| 0f00f2c3 | 321 | result |= 1; |
| c4b681fd LC |
322 | if (sprintf (buf, "%Lg", zeroL / zeroL) < 0 |
| 323 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 324 | result |= 1; |
| 35428fb6 | 325 | #if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE |
| c4b681fd LC |
326 | /* Representation of an 80-bit 'long double' as an initializer for a sequence |
| 327 | of 'unsigned int' words. */ | |
| 328 | # ifdef WORDS_BIGENDIAN | |
| 329 | # define LDBL80_WORDS(exponent,manthi,mantlo) \ | |
| 330 | { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \ | |
| 331 | ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \ | |
| 332 | (unsigned int) (mantlo) << 16 \ | |
| 333 | } | |
| 334 | # else | |
| 335 | # define LDBL80_WORDS(exponent,manthi,mantlo) \ | |
| 336 | { mantlo, manthi, exponent } | |
| 337 | # endif | |
| 338 | { /* Quiet NaN. */ | |
| 339 | static union { unsigned int word[4]; long double value; } x = | |
| 340 | { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) }; | |
| 341 | if (sprintf (buf, "%Lf", x.value) < 0 | |
| 342 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 343 | result |= 2; |
| c4b681fd LC |
344 | if (sprintf (buf, "%Le", x.value) < 0 |
| 345 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 346 | result |= 2; |
| c4b681fd LC |
347 | if (sprintf (buf, "%Lg", x.value) < 0 |
| 348 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 349 | result |= 2; |
| c4b681fd LC |
350 | } |
| 351 | { | |
| 352 | /* Signalling NaN. */ | |
| 353 | static union { unsigned int word[4]; long double value; } x = | |
| 354 | { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) }; | |
| 355 | if (sprintf (buf, "%Lf", x.value) < 0 | |
| 356 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 357 | result |= 2; |
| c4b681fd LC |
358 | if (sprintf (buf, "%Le", x.value) < 0 |
| 359 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 360 | result |= 2; |
| c4b681fd LC |
361 | if (sprintf (buf, "%Lg", x.value) < 0 |
| 362 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 363 | result |= 2; |
| c4b681fd LC |
364 | } |
| 365 | { /* Pseudo-NaN. */ | |
| 366 | static union { unsigned int word[4]; long double value; } x = | |
| 367 | { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) }; | |
| 368 | if (sprintf (buf, "%Lf", x.value) < 0 | |
| 369 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 370 | result |= 4; |
| c4b681fd LC |
371 | if (sprintf (buf, "%Le", x.value) < 0 |
| 372 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 373 | result |= 4; |
| c4b681fd LC |
374 | if (sprintf (buf, "%Lg", x.value) < 0 |
| 375 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 376 | result |= 4; |
| c4b681fd LC |
377 | } |
| 378 | { /* Pseudo-Infinity. */ | |
| 379 | static union { unsigned int word[4]; long double value; } x = | |
| 380 | { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) }; | |
| 381 | if (sprintf (buf, "%Lf", x.value) < 0 | |
| 382 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 383 | result |= 8; |
| c4b681fd LC |
384 | if (sprintf (buf, "%Le", x.value) < 0 |
| 385 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 386 | result |= 8; |
| c4b681fd LC |
387 | if (sprintf (buf, "%Lg", x.value) < 0 |
| 388 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 389 | result |= 8; |
| c4b681fd LC |
390 | } |
| 391 | { /* Pseudo-Zero. */ | |
| 392 | static union { unsigned int word[4]; long double value; } x = | |
| 393 | { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) }; | |
| 394 | if (sprintf (buf, "%Lf", x.value) < 0 | |
| 395 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 396 | result |= 16; |
| c4b681fd LC |
397 | if (sprintf (buf, "%Le", x.value) < 0 |
| 398 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 399 | result |= 16; |
| c4b681fd LC |
400 | if (sprintf (buf, "%Lg", x.value) < 0 |
| 401 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 402 | result |= 16; |
| c4b681fd LC |
403 | } |
| 404 | { /* Unnormalized number. */ | |
| 405 | static union { unsigned int word[4]; long double value; } x = | |
| 406 | { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) }; | |
| 407 | if (sprintf (buf, "%Lf", x.value) < 0 | |
| 408 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 409 | result |= 32; |
| c4b681fd LC |
410 | if (sprintf (buf, "%Le", x.value) < 0 |
| 411 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 412 | result |= 32; |
| c4b681fd LC |
413 | if (sprintf (buf, "%Lg", x.value) < 0 |
| 414 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 415 | result |= 32; |
| c4b681fd LC |
416 | } |
| 417 | { /* Pseudo-Denormal. */ | |
| 418 | static union { unsigned int word[4]; long double value; } x = | |
| 419 | { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) }; | |
| 420 | if (sprintf (buf, "%Lf", x.value) < 0 | |
| 421 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 422 | result |= 64; |
| c4b681fd LC |
423 | if (sprintf (buf, "%Le", x.value) < 0 |
| 424 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 425 | result |= 64; |
| c4b681fd LC |
426 | if (sprintf (buf, "%Lg", x.value) < 0 |
| 427 | || !strisnan (buf, 0, strlen (buf))) | |
| 0f00f2c3 | 428 | result |= 64; |
| c4b681fd LC |
429 | } |
| 430 | #endif | |
| 0f00f2c3 | 431 | return result; |
| 9157d901 LC |
432 | }]])], |
| 433 | [gl_cv_func_printf_infinite_long_double=yes], | |
| 434 | [gl_cv_func_printf_infinite_long_double=no], | |
| 435 | [ | |
| c4b681fd | 436 | changequote(,)dnl |
| 9157d901 LC |
437 | case "$host_cpu" in |
| 438 | # Guess no on ia64, x86_64, i386. | |
| 439 | ia64 | x86_64 | i*86) gl_cv_func_printf_infinite_long_double="guessing no";; | |
| 440 | *) | |
| 441 | case "$host_os" in | |
| 442 | # Guess yes on glibc systems. | |
| 443 | *-gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";; | |
| 444 | # Guess yes on FreeBSD >= 6. | |
| 445 | freebsd[1-5]*) gl_cv_func_printf_infinite_long_double="guessing no";; | |
| 446 | freebsd* | kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; | |
| 9157d901 LC |
447 | # Guess yes on HP-UX >= 11. |
| 448 | hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite_long_double="guessing no";; | |
| 449 | hpux*) gl_cv_func_printf_infinite_long_double="guessing yes";; | |
| 9157d901 LC |
450 | # If we don't know, assume the worst. |
| 451 | *) gl_cv_func_printf_infinite_long_double="guessing no";; | |
| 452 | esac | |
| 453 | ;; | |
| 454 | esac | |
| c4b681fd | 455 | changequote([,])dnl |
| 9157d901 | 456 | ]) |
| c4b681fd LC |
457 | ]) |
| 458 | ;; | |
| 459 | *) | |
| 460 | gl_cv_func_printf_infinite_long_double="irrelevant" | |
| 461 | ;; | |
| 462 | esac | |
| 463 | ]) | |
| 464 | ||
| 465 | dnl Test whether the *printf family of functions supports the 'a' and 'A' | |
| 466 | dnl conversion specifier for hexadecimal output of floating-point numbers. | |
| 467 | dnl (ISO C99, POSIX:2001) | |
| 468 | dnl Result is gl_cv_func_printf_directive_a. | |
| 469 | ||
| 470 | AC_DEFUN([gl_PRINTF_DIRECTIVE_A], | |
| 471 | [ | |
| 472 | AC_REQUIRE([AC_PROG_CC]) | |
| 473 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 474 | AC_CACHE_CHECK([whether printf supports the 'a' and 'A' directives], | |
| 475 | [gl_cv_func_printf_directive_a], | |
| 476 | [ | |
| 9157d901 LC |
477 | AC_RUN_IFELSE( |
| 478 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
479 | #include <stdio.h> |
| 480 | #include <string.h> | |
| 481 | static char buf[100]; | |
| 35428fb6 | 482 | static double zero = 0.0; |
| c4b681fd LC |
483 | int main () |
| 484 | { | |
| 0f00f2c3 | 485 | int result = 0; |
| c4b681fd LC |
486 | if (sprintf (buf, "%a %d", 3.1416015625, 33, 44, 55) < 0 |
| 487 | || (strcmp (buf, "0x1.922p+1 33") != 0 | |
| 488 | && strcmp (buf, "0x3.244p+0 33") != 0 | |
| 489 | && strcmp (buf, "0x6.488p-1 33") != 0 | |
| 490 | && strcmp (buf, "0xc.91p-2 33") != 0)) | |
| 0f00f2c3 | 491 | result |= 1; |
| c4b681fd LC |
492 | if (sprintf (buf, "%A %d", -3.1416015625, 33, 44, 55) < 0 |
| 493 | || (strcmp (buf, "-0X1.922P+1 33") != 0 | |
| 494 | && strcmp (buf, "-0X3.244P+0 33") != 0 | |
| 495 | && strcmp (buf, "-0X6.488P-1 33") != 0 | |
| 496 | && strcmp (buf, "-0XC.91P-2 33") != 0)) | |
| 0f00f2c3 | 497 | result |= 2; |
| c4b681fd LC |
498 | /* This catches a FreeBSD 6.1 bug: it doesn't round. */ |
| 499 | if (sprintf (buf, "%.2a %d", 1.51, 33, 44, 55) < 0 | |
| 500 | || (strcmp (buf, "0x1.83p+0 33") != 0 | |
| 501 | && strcmp (buf, "0x3.05p-1 33") != 0 | |
| 502 | && strcmp (buf, "0x6.0ap-2 33") != 0 | |
| 503 | && strcmp (buf, "0xc.14p-3 33") != 0)) | |
| 0f00f2c3 | 504 | result |= 4; |
| c4b681fd LC |
505 | /* This catches a FreeBSD 6.1 bug. See |
| 506 | <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */ | |
| 35428fb6 | 507 | if (sprintf (buf, "%010a %d", 1.0 / zero, 33, 44, 55) < 0 |
| c4b681fd | 508 | || buf[0] == '0') |
| 0f00f2c3 | 509 | result |= 8; |
| c4b681fd LC |
510 | /* This catches a MacOS X 10.3.9 (Darwin 7.9) bug. */ |
| 511 | if (sprintf (buf, "%.1a", 1.999) < 0 | |
| 512 | || (strcmp (buf, "0x1.0p+1") != 0 | |
| 513 | && strcmp (buf, "0x2.0p+0") != 0 | |
| 514 | && strcmp (buf, "0x4.0p-1") != 0 | |
| 515 | && strcmp (buf, "0x8.0p-2") != 0)) | |
| 0f00f2c3 | 516 | result |= 16; |
| c4b681fd LC |
517 | /* This catches the same MacOS X 10.3.9 (Darwin 7.9) bug and also a |
| 518 | glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */ | |
| 519 | if (sprintf (buf, "%.1La", 1.999L) < 0 | |
| 520 | || (strcmp (buf, "0x1.0p+1") != 0 | |
| 521 | && strcmp (buf, "0x2.0p+0") != 0 | |
| 522 | && strcmp (buf, "0x4.0p-1") != 0 | |
| 523 | && strcmp (buf, "0x8.0p-2") != 0)) | |
| 0f00f2c3 LC |
524 | result |= 32; |
| 525 | return result; | |
| 9157d901 LC |
526 | }]])], |
| 527 | [gl_cv_func_printf_directive_a=yes], | |
| 528 | [gl_cv_func_printf_directive_a=no], | |
| 529 | [ | |
| 530 | case "$host_os" in | |
| 531 | # Guess yes on glibc >= 2.5 systems. | |
| 532 | *-gnu*) | |
| 533 | AC_EGREP_CPP([BZ2908], [ | |
| 534 | #include <features.h> | |
| 535 | #ifdef __GNU_LIBRARY__ | |
| 0f00f2c3 | 536 | #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 5) || (__GLIBC__ > 2)) && !defined __UCLIBC__ |
| 9157d901 LC |
537 | BZ2908 |
| 538 | #endif | |
| 539 | #endif | |
| 540 | ], | |
| 541 | [gl_cv_func_printf_directive_a="guessing yes"], | |
| 542 | [gl_cv_func_printf_directive_a="guessing no"]) | |
| 543 | ;; | |
| 544 | # If we don't know, assume the worst. | |
| 545 | *) gl_cv_func_printf_directive_a="guessing no";; | |
| 546 | esac | |
| 547 | ]) | |
| c4b681fd LC |
548 | ]) |
| 549 | ]) | |
| 550 | ||
| 551 | dnl Test whether the *printf family of functions supports the %F format | |
| 552 | dnl directive. (ISO C99, POSIX:2001) | |
| 553 | dnl Result is gl_cv_func_printf_directive_f. | |
| 554 | ||
| 555 | AC_DEFUN([gl_PRINTF_DIRECTIVE_F], | |
| 556 | [ | |
| 557 | AC_REQUIRE([AC_PROG_CC]) | |
| 558 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 559 | AC_CACHE_CHECK([whether printf supports the 'F' directive], | |
| 560 | [gl_cv_func_printf_directive_f], | |
| 561 | [ | |
| 9157d901 LC |
562 | AC_RUN_IFELSE( |
| 563 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
564 | #include <stdio.h> |
| 565 | #include <string.h> | |
| 566 | static char buf[100]; | |
| 35428fb6 | 567 | static double zero = 0.0; |
| c4b681fd LC |
568 | int main () |
| 569 | { | |
| 0f00f2c3 | 570 | int result = 0; |
| c4b681fd LC |
571 | if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0 |
| 572 | || strcmp (buf, "1234567.000000 33") != 0) | |
| 0f00f2c3 | 573 | result |= 1; |
| 35428fb6 | 574 | if (sprintf (buf, "%F", 1.0 / zero) < 0 |
| c4b681fd | 575 | || (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0)) |
| 0f00f2c3 | 576 | result |= 2; |
| c4b681fd LC |
577 | /* This catches a Cygwin 1.5.x bug. */ |
| 578 | if (sprintf (buf, "%.F", 1234.0) < 0 | |
| 579 | || strcmp (buf, "1234") != 0) | |
| 0f00f2c3 LC |
580 | result |= 4; |
| 581 | return result; | |
| 9157d901 LC |
582 | }]])], |
| 583 | [gl_cv_func_printf_directive_f=yes], | |
| 584 | [gl_cv_func_printf_directive_f=no], | |
| 585 | [ | |
| c4b681fd | 586 | changequote(,)dnl |
| 9157d901 LC |
587 | case "$host_os" in |
| 588 | # Guess yes on glibc systems. | |
| 589 | *-gnu*) gl_cv_func_printf_directive_f="guessing yes";; | |
| 590 | # Guess yes on FreeBSD >= 6. | |
| 591 | freebsd[1-5]*) gl_cv_func_printf_directive_f="guessing no";; | |
| 592 | freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";; | |
| 593 | # Guess yes on MacOS X >= 10.3. | |
| 594 | darwin[1-6].*) gl_cv_func_printf_directive_f="guessing no";; | |
| 595 | darwin*) gl_cv_func_printf_directive_f="guessing yes";; | |
| 596 | # Guess yes on Solaris >= 2.10. | |
| 49114fd4 LC |
597 | solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";; |
| 598 | solaris*) gl_cv_func_printf_sizes_c99="guessing no";; | |
| 9157d901 LC |
599 | # If we don't know, assume the worst. |
| 600 | *) gl_cv_func_printf_directive_f="guessing no";; | |
| 601 | esac | |
| c4b681fd | 602 | changequote([,])dnl |
| 9157d901 | 603 | ]) |
| c4b681fd LC |
604 | ]) |
| 605 | ]) | |
| 606 | ||
| 607 | dnl Test whether the *printf family of functions supports the %n format | |
| 608 | dnl directive. (ISO C99, POSIX:2001) | |
| 609 | dnl Result is gl_cv_func_printf_directive_n. | |
| 610 | ||
| 611 | AC_DEFUN([gl_PRINTF_DIRECTIVE_N], | |
| 612 | [ | |
| 613 | AC_REQUIRE([AC_PROG_CC]) | |
| 614 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 615 | AC_CACHE_CHECK([whether printf supports the 'n' directive], | |
| 616 | [gl_cv_func_printf_directive_n], | |
| 617 | [ | |
| 9157d901 LC |
618 | AC_RUN_IFELSE( |
| 619 | [AC_LANG_SOURCE([[ | |
| c4b681fd | 620 | #include <stdio.h> |
| 35428fb6 | 621 | #include <stdlib.h> |
| c4b681fd | 622 | #include <string.h> |
| 35428fb6 LC |
623 | #ifdef _MSC_VER |
| 624 | /* See page about "Parameter Validation" on msdn.microsoft.com. */ | |
| 625 | static void cdecl | |
| 626 | invalid_parameter_handler (const wchar_t *expression, | |
| 627 | const wchar_t *function, | |
| 628 | const wchar_t *file, unsigned int line, | |
| 629 | uintptr_t dummy) | |
| 630 | { | |
| 631 | exit (1); | |
| 632 | } | |
| 633 | #endif | |
| c4b681fd LC |
634 | static char fmtstring[10]; |
| 635 | static char buf[100]; | |
| 636 | int main () | |
| 637 | { | |
| 638 | int count = -1; | |
| 35428fb6 LC |
639 | #ifdef _MSC_VER |
| 640 | _set_invalid_parameter_handler (invalid_parameter_handler); | |
| 641 | #endif | |
| c4b681fd LC |
642 | /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) |
| 643 | support %n in format strings in read-only memory but not in writable | |
| 644 | memory. */ | |
| 645 | strcpy (fmtstring, "%d %n"); | |
| 646 | if (sprintf (buf, fmtstring, 123, &count, 33, 44, 55) < 0 | |
| 647 | || strcmp (buf, "123 ") != 0 | |
| 648 | || count != 4) | |
| 649 | return 1; | |
| 650 | return 0; | |
| 9157d901 LC |
651 | }]])], |
| 652 | [gl_cv_func_printf_directive_n=yes], | |
| 653 | [gl_cv_func_printf_directive_n=no], | |
| 654 | [ | |
| c4b681fd | 655 | changequote(,)dnl |
| 9157d901 | 656 | case "$host_os" in |
| 35428fb6 LC |
657 | mingw*) gl_cv_func_printf_directive_n="guessing no";; |
| 658 | *) gl_cv_func_printf_directive_n="guessing yes";; | |
| 9157d901 | 659 | esac |
| c4b681fd | 660 | changequote([,])dnl |
| 9157d901 | 661 | ]) |
| c4b681fd LC |
662 | ]) |
| 663 | ]) | |
| 664 | ||
| 665 | dnl Test whether the *printf family of functions supports the %ls format | |
| 666 | dnl directive and in particular, when a precision is specified, whether | |
| 667 | dnl the functions stop converting the wide string argument when the number | |
| 668 | dnl of bytes that have been produced by this conversion equals or exceeds | |
| 669 | dnl the precision. | |
| 670 | dnl Result is gl_cv_func_printf_directive_ls. | |
| 671 | ||
| 672 | AC_DEFUN([gl_PRINTF_DIRECTIVE_LS], | |
| 673 | [ | |
| 674 | AC_REQUIRE([AC_PROG_CC]) | |
| 675 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 676 | AC_CACHE_CHECK([whether printf supports the 'ls' directive], | |
| 677 | [gl_cv_func_printf_directive_ls], | |
| 678 | [ | |
| 9157d901 LC |
679 | AC_RUN_IFELSE( |
| 680 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
681 | /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before |
| 682 | <wchar.h>. | |
| 683 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be | |
| 684 | included before <wchar.h>. */ | |
| 685 | #include <stddef.h> | |
| 686 | #include <stdio.h> | |
| 687 | #include <time.h> | |
| 688 | #include <wchar.h> | |
| 689 | #include <string.h> | |
| 690 | int main () | |
| 691 | { | |
| 0f00f2c3 | 692 | int result = 0; |
| c4b681fd LC |
693 | char buf[100]; |
| 694 | /* Test whether %ls works at all. | |
| 695 | This test fails on OpenBSD 4.0, IRIX 6.5, Solaris 2.6, Haiku, but not on | |
| 696 | Cygwin 1.5. */ | |
| 697 | { | |
| 698 | static const wchar_t wstring[] = { 'a', 'b', 'c', 0 }; | |
| 699 | buf[0] = '\0'; | |
| 700 | if (sprintf (buf, "%ls", wstring) < 0 | |
| 701 | || strcmp (buf, "abc") != 0) | |
| 0f00f2c3 | 702 | result |= 1; |
| c4b681fd LC |
703 | } |
| 704 | /* This test fails on IRIX 6.5, Solaris 2.6, Cygwin 1.5, Haiku (with an | |
| 705 | assertion failure inside libc), but not on OpenBSD 4.0. */ | |
| 706 | { | |
| 707 | static const wchar_t wstring[] = { 'a', 0 }; | |
| 708 | buf[0] = '\0'; | |
| 709 | if (sprintf (buf, "%ls", wstring) < 0 | |
| 710 | || strcmp (buf, "a") != 0) | |
| 0f00f2c3 | 711 | result |= 2; |
| c4b681fd LC |
712 | } |
| 713 | /* Test whether precisions in %ls are supported as specified in ISO C 99 | |
| 714 | section 7.19.6.1: | |
| 715 | "If a precision is specified, no more than that many bytes are written | |
| 716 | (including shift sequences, if any), and the array shall contain a | |
| 717 | null wide character if, to equal the multibyte character sequence | |
| 718 | length given by the precision, the function would need to access a | |
| 719 | wide character one past the end of the array." | |
| 720 | This test fails on Solaris 10. */ | |
| 721 | { | |
| 722 | static const wchar_t wstring[] = { 'a', 'b', (wchar_t) 0xfdfdfdfd, 0 }; | |
| 723 | buf[0] = '\0'; | |
| 724 | if (sprintf (buf, "%.2ls", wstring) < 0 | |
| 725 | || strcmp (buf, "ab") != 0) | |
| 0f00f2c3 | 726 | result |= 8; |
| c4b681fd | 727 | } |
| 0f00f2c3 | 728 | return result; |
| 9157d901 LC |
729 | }]])], |
| 730 | [gl_cv_func_printf_directive_ls=yes], | |
| 731 | [gl_cv_func_printf_directive_ls=no], | |
| 732 | [ | |
| c4b681fd | 733 | changequote(,)dnl |
| 9157d901 LC |
734 | case "$host_os" in |
| 735 | openbsd*) gl_cv_func_printf_directive_ls="guessing no";; | |
| 736 | irix*) gl_cv_func_printf_directive_ls="guessing no";; | |
| 737 | solaris*) gl_cv_func_printf_directive_ls="guessing no";; | |
| 738 | cygwin*) gl_cv_func_printf_directive_ls="guessing no";; | |
| 739 | beos* | haiku*) gl_cv_func_printf_directive_ls="guessing no";; | |
| 740 | *) gl_cv_func_printf_directive_ls="guessing yes";; | |
| 741 | esac | |
| c4b681fd | 742 | changequote([,])dnl |
| 9157d901 | 743 | ]) |
| c4b681fd LC |
744 | ]) |
| 745 | ]) | |
| 746 | ||
| 747 | dnl Test whether the *printf family of functions supports POSIX/XSI format | |
| 748 | dnl strings with positions. (POSIX:2001) | |
| 749 | dnl Result is gl_cv_func_printf_positions. | |
| 750 | ||
| 751 | AC_DEFUN([gl_PRINTF_POSITIONS], | |
| 752 | [ | |
| 753 | AC_REQUIRE([AC_PROG_CC]) | |
| 754 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 755 | AC_CACHE_CHECK([whether printf supports POSIX/XSI format strings with positions], | |
| 756 | [gl_cv_func_printf_positions], | |
| 757 | [ | |
| 9157d901 LC |
758 | AC_RUN_IFELSE( |
| 759 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
760 | #include <stdio.h> |
| 761 | #include <string.h> | |
| 762 | /* The string "%2$d %1$d", with dollar characters protected from the shell's | |
| 763 | dollar expansion (possibly an autoconf bug). */ | |
| 764 | static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' }; | |
| 765 | static char buf[100]; | |
| 766 | int main () | |
| 767 | { | |
| 768 | sprintf (buf, format, 33, 55); | |
| 769 | return (strcmp (buf, "55 33") != 0); | |
| 9157d901 LC |
770 | }]])], |
| 771 | [gl_cv_func_printf_positions=yes], | |
| 772 | [gl_cv_func_printf_positions=no], | |
| 773 | [ | |
| c4b681fd | 774 | changequote(,)dnl |
| 9157d901 LC |
775 | case "$host_os" in |
| 776 | netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*) | |
| 777 | gl_cv_func_printf_positions="guessing no";; | |
| 778 | beos*) gl_cv_func_printf_positions="guessing no";; | |
| 779 | mingw* | pw*) gl_cv_func_printf_positions="guessing no";; | |
| 780 | *) gl_cv_func_printf_positions="guessing yes";; | |
| 781 | esac | |
| c4b681fd | 782 | changequote([,])dnl |
| 9157d901 | 783 | ]) |
| c4b681fd LC |
784 | ]) |
| 785 | ]) | |
| 786 | ||
| 787 | dnl Test whether the *printf family of functions supports POSIX/XSI format | |
| 788 | dnl strings with the ' flag for grouping of decimal digits. (POSIX:2001) | |
| 789 | dnl Result is gl_cv_func_printf_flag_grouping. | |
| 790 | ||
| 791 | AC_DEFUN([gl_PRINTF_FLAG_GROUPING], | |
| 792 | [ | |
| 793 | AC_REQUIRE([AC_PROG_CC]) | |
| 794 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 795 | AC_CACHE_CHECK([whether printf supports the grouping flag], | |
| 796 | [gl_cv_func_printf_flag_grouping], | |
| 797 | [ | |
| 9157d901 LC |
798 | AC_RUN_IFELSE( |
| 799 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
800 | #include <stdio.h> |
| 801 | #include <string.h> | |
| 802 | static char buf[100]; | |
| 803 | int main () | |
| 804 | { | |
| 805 | if (sprintf (buf, "%'d %d", 1234567, 99) < 0 | |
| 806 | || buf[strlen (buf) - 1] != '9') | |
| 807 | return 1; | |
| 808 | return 0; | |
| 9157d901 LC |
809 | }]])], |
| 810 | [gl_cv_func_printf_flag_grouping=yes], | |
| 811 | [gl_cv_func_printf_flag_grouping=no], | |
| 812 | [ | |
| c4b681fd | 813 | changequote(,)dnl |
| 9157d901 LC |
814 | case "$host_os" in |
| 815 | cygwin*) gl_cv_func_printf_flag_grouping="guessing no";; | |
| 816 | netbsd*) gl_cv_func_printf_flag_grouping="guessing no";; | |
| 817 | mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";; | |
| 818 | *) gl_cv_func_printf_flag_grouping="guessing yes";; | |
| 819 | esac | |
| c4b681fd | 820 | changequote([,])dnl |
| 9157d901 | 821 | ]) |
| c4b681fd LC |
822 | ]) |
| 823 | ]) | |
| 824 | ||
| 825 | dnl Test whether the *printf family of functions supports the - flag correctly. | |
| 826 | dnl (ISO C99.) See | |
| 827 | dnl <http://lists.gnu.org/archive/html/bug-coreutils/2008-02/msg00035.html> | |
| 828 | dnl Result is gl_cv_func_printf_flag_leftadjust. | |
| 829 | ||
| 830 | AC_DEFUN([gl_PRINTF_FLAG_LEFTADJUST], | |
| 831 | [ | |
| 832 | AC_REQUIRE([AC_PROG_CC]) | |
| 833 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 834 | AC_CACHE_CHECK([whether printf supports the left-adjust flag correctly], | |
| 835 | [gl_cv_func_printf_flag_leftadjust], | |
| 836 | [ | |
| 9157d901 LC |
837 | AC_RUN_IFELSE( |
| 838 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
839 | #include <stdio.h> |
| 840 | #include <string.h> | |
| 841 | static char buf[100]; | |
| 842 | int main () | |
| 843 | { | |
| 844 | /* Check that a '-' flag is not annihilated by a negative width. */ | |
| 845 | if (sprintf (buf, "a%-*sc", -3, "b") < 0 | |
| 846 | || strcmp (buf, "ab c") != 0) | |
| 847 | return 1; | |
| 848 | return 0; | |
| 9157d901 | 849 | }]])], |
| c4b681fd LC |
850 | [gl_cv_func_printf_flag_leftadjust=yes], |
| 851 | [gl_cv_func_printf_flag_leftadjust=no], | |
| 852 | [ | |
| 853 | changequote(,)dnl | |
| 854 | case "$host_os" in | |
| 855 | # Guess yes on HP-UX 11. | |
| 856 | hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";; | |
| 857 | # Guess no on HP-UX 10 and older. | |
| 858 | hpux*) gl_cv_func_printf_flag_leftadjust="guessing no";; | |
| 859 | # Guess yes otherwise. | |
| 860 | *) gl_cv_func_printf_flag_leftadjust="guessing yes";; | |
| 861 | esac | |
| 862 | changequote([,])dnl | |
| 863 | ]) | |
| 864 | ]) | |
| 865 | ]) | |
| 866 | ||
| 867 | dnl Test whether the *printf family of functions supports padding of non-finite | |
| 868 | dnl values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See | |
| 869 | dnl <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> | |
| 870 | dnl Result is gl_cv_func_printf_flag_zero. | |
| 871 | ||
| 872 | AC_DEFUN([gl_PRINTF_FLAG_ZERO], | |
| 873 | [ | |
| 874 | AC_REQUIRE([AC_PROG_CC]) | |
| 875 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 876 | AC_CACHE_CHECK([whether printf supports the zero flag correctly], | |
| 877 | [gl_cv_func_printf_flag_zero], | |
| 878 | [ | |
| 9157d901 LC |
879 | AC_RUN_IFELSE( |
| 880 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
881 | #include <stdio.h> |
| 882 | #include <string.h> | |
| 883 | static char buf[100]; | |
| 35428fb6 | 884 | static double zero = 0.0; |
| c4b681fd LC |
885 | int main () |
| 886 | { | |
| 35428fb6 | 887 | if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0 |
| c4b681fd LC |
888 | || (strcmp (buf, " inf") != 0 |
| 889 | && strcmp (buf, " infinity") != 0)) | |
| 890 | return 1; | |
| 891 | return 0; | |
| 9157d901 LC |
892 | }]])], |
| 893 | [gl_cv_func_printf_flag_zero=yes], | |
| 894 | [gl_cv_func_printf_flag_zero=no], | |
| 895 | [ | |
| c4b681fd | 896 | changequote(,)dnl |
| 9157d901 LC |
897 | case "$host_os" in |
| 898 | # Guess yes on glibc systems. | |
| 899 | *-gnu*) gl_cv_func_printf_flag_zero="guessing yes";; | |
| 900 | # Guess yes on BeOS. | |
| 901 | beos*) gl_cv_func_printf_flag_zero="guessing yes";; | |
| 902 | # If we don't know, assume the worst. | |
| 903 | *) gl_cv_func_printf_flag_zero="guessing no";; | |
| 904 | esac | |
| c4b681fd | 905 | changequote([,])dnl |
| 9157d901 | 906 | ]) |
| c4b681fd LC |
907 | ]) |
| 908 | ]) | |
| 909 | ||
| 910 | dnl Test whether the *printf family of functions supports large precisions. | |
| 911 | dnl On mingw, precisions larger than 512 are treated like 512, in integer, | |
| 0f00f2c3 | 912 | dnl floating-point or pointer output. On Solaris 10/x86, precisions larger |
| 49114fd4 LC |
913 | dnl than 510 in floating-point output crash the program. On Solaris 10/SPARC, |
| 914 | dnl precisions larger than 510 in floating-point output yield wrong results. | |
| 231c0e0e LC |
915 | dnl On AIX 7.1, precisions larger than 998 in floating-point output yield |
| 916 | dnl wrong results. On BeOS, precisions larger than 1044 crash the program. | |
| c4b681fd LC |
917 | dnl Result is gl_cv_func_printf_precision. |
| 918 | ||
| 919 | AC_DEFUN([gl_PRINTF_PRECISION], | |
| 920 | [ | |
| 921 | AC_REQUIRE([AC_PROG_CC]) | |
| 922 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 923 | AC_CACHE_CHECK([whether printf supports large precisions], | |
| 924 | [gl_cv_func_printf_precision], | |
| 925 | [ | |
| 9157d901 LC |
926 | AC_RUN_IFELSE( |
| 927 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
928 | #include <stdio.h> |
| 929 | #include <string.h> | |
| 930 | static char buf[5000]; | |
| 931 | int main () | |
| 932 | { | |
| 0f00f2c3 | 933 | int result = 0; |
| c4b681fd LC |
934 | #ifdef __BEOS__ |
| 935 | /* On BeOS, this would crash and show a dialog box. Avoid the crash. */ | |
| 936 | return 1; | |
| 937 | #endif | |
| 938 | if (sprintf (buf, "%.4000d %d", 1, 33, 44) < 4000 + 3) | |
| 0f00f2c3 LC |
939 | result |= 1; |
| 940 | if (sprintf (buf, "%.4000f %d", 1.0, 33, 44) < 4000 + 5) | |
| 941 | result |= 2; | |
| 49114fd4 LC |
942 | if (sprintf (buf, "%.511f %d", 1.0, 33, 44) < 511 + 5 |
| 943 | || buf[0] != '1') | |
| 944 | result |= 4; | |
| 231c0e0e LC |
945 | if (sprintf (buf, "%.999f %d", 1.0, 33, 44) < 999 + 5 |
| 946 | || buf[0] != '1') | |
| 947 | result |= 4; | |
| 0f00f2c3 | 948 | return result; |
| 9157d901 LC |
949 | }]])], |
| 950 | [gl_cv_func_printf_precision=yes], | |
| 951 | [gl_cv_func_printf_precision=no], | |
| 952 | [ | |
| c4b681fd | 953 | changequote(,)dnl |
| 9157d901 | 954 | case "$host_os" in |
| f0007cad | 955 | # Guess no only on Solaris, native Windows, and BeOS systems. |
| 0f00f2c3 | 956 | solaris*) gl_cv_func_printf_precision="guessing no" ;; |
| 9157d901 LC |
957 | mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;; |
| 958 | beos*) gl_cv_func_printf_precision="guessing no" ;; | |
| 959 | *) gl_cv_func_printf_precision="guessing yes" ;; | |
| 960 | esac | |
| c4b681fd | 961 | changequote([,])dnl |
| 9157d901 | 962 | ]) |
| c4b681fd LC |
963 | ]) |
| 964 | ]) | |
| 965 | ||
| 966 | dnl Test whether the *printf family of functions recovers gracefully in case | |
| 967 | dnl of an out-of-memory condition, or whether it crashes the entire program. | |
| 968 | dnl Result is gl_cv_func_printf_enomem. | |
| 969 | ||
| 970 | AC_DEFUN([gl_PRINTF_ENOMEM], | |
| 971 | [ | |
| 972 | AC_REQUIRE([AC_PROG_CC]) | |
| 973 | AC_REQUIRE([gl_MULTIARCH]) | |
| 974 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 975 | AC_CACHE_CHECK([whether printf survives out-of-memory conditions], | |
| 976 | [gl_cv_func_printf_enomem], | |
| 977 | [ | |
| 978 | gl_cv_func_printf_enomem="guessing no" | |
| 979 | if test "$cross_compiling" = no; then | |
| 980 | if test $APPLE_UNIVERSAL_BUILD = 0; then | |
| 981 | AC_LANG_CONFTEST([AC_LANG_SOURCE([ | |
| 982 | ]GL_NOCRASH[ | |
| 983 | changequote(,)dnl | |
| 984 | #include <stdio.h> | |
| 985 | #include <sys/types.h> | |
| 986 | #include <sys/time.h> | |
| 987 | #include <sys/resource.h> | |
| 988 | #include <errno.h> | |
| 989 | int main() | |
| 990 | { | |
| 991 | struct rlimit limit; | |
| 992 | int ret; | |
| 993 | nocrash_init (); | |
| 994 | /* Some printf implementations allocate temporary space with malloc. */ | |
| 995 | /* On BSD systems, malloc() is limited by RLIMIT_DATA. */ | |
| 996 | #ifdef RLIMIT_DATA | |
| 997 | if (getrlimit (RLIMIT_DATA, &limit) < 0) | |
| 998 | return 77; | |
| 999 | if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) | |
| 1000 | limit.rlim_max = 5000000; | |
| 1001 | limit.rlim_cur = limit.rlim_max; | |
| 1002 | if (setrlimit (RLIMIT_DATA, &limit) < 0) | |
| 1003 | return 77; | |
| 1004 | #endif | |
| 1005 | /* On Linux systems, malloc() is limited by RLIMIT_AS. */ | |
| 1006 | #ifdef RLIMIT_AS | |
| 1007 | if (getrlimit (RLIMIT_AS, &limit) < 0) | |
| 1008 | return 77; | |
| 1009 | if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) | |
| 1010 | limit.rlim_max = 5000000; | |
| 1011 | limit.rlim_cur = limit.rlim_max; | |
| 1012 | if (setrlimit (RLIMIT_AS, &limit) < 0) | |
| 1013 | return 77; | |
| 1014 | #endif | |
| 1015 | /* Some printf implementations allocate temporary space on the stack. */ | |
| 1016 | #ifdef RLIMIT_STACK | |
| 1017 | if (getrlimit (RLIMIT_STACK, &limit) < 0) | |
| 1018 | return 77; | |
| 1019 | if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) | |
| 1020 | limit.rlim_max = 5000000; | |
| 1021 | limit.rlim_cur = limit.rlim_max; | |
| 1022 | if (setrlimit (RLIMIT_STACK, &limit) < 0) | |
| 1023 | return 77; | |
| 1024 | #endif | |
| 1025 | ret = printf ("%.5000000f", 1.0); | |
| 1026 | return !(ret == 5000002 || (ret < 0 && errno == ENOMEM)); | |
| 1027 | } | |
| 1028 | changequote([,])dnl | |
| 1029 | ])]) | |
| 1030 | if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then | |
| 1031 | (./conftest | |
| 1032 | result=$? | |
| 1033 | if test $result != 0 && test $result != 77; then result=1; fi | |
| 1034 | exit $result | |
| 1035 | ) >/dev/null 2>/dev/null | |
| 1036 | case $? in | |
| 1037 | 0) gl_cv_func_printf_enomem="yes" ;; | |
| 1038 | 77) gl_cv_func_printf_enomem="guessing no" ;; | |
| 1039 | *) gl_cv_func_printf_enomem="no" ;; | |
| 1040 | esac | |
| 1041 | else | |
| 1042 | gl_cv_func_printf_enomem="guessing no" | |
| 1043 | fi | |
| 1044 | rm -fr conftest* | |
| 1045 | else | |
| 1046 | dnl A universal build on Apple MacOS X platforms. | |
| 1047 | dnl The result would be 'no' in 32-bit mode and 'yes' in 64-bit mode. | |
| 1048 | dnl But we need a configuration result that is valid in both modes. | |
| 1049 | gl_cv_func_printf_enomem="guessing no" | |
| 1050 | fi | |
| 1051 | fi | |
| 1052 | if test "$gl_cv_func_printf_enomem" = "guessing no"; then | |
| 1053 | changequote(,)dnl | |
| 1054 | case "$host_os" in | |
| 1055 | # Guess yes on glibc systems. | |
| 1056 | *-gnu*) gl_cv_func_printf_enomem="guessing yes";; | |
| 1057 | # Guess yes on Solaris. | |
| 1058 | solaris*) gl_cv_func_printf_enomem="guessing yes";; | |
| 1059 | # Guess yes on AIX. | |
| 1060 | aix*) gl_cv_func_printf_enomem="guessing yes";; | |
| 1061 | # Guess yes on HP-UX/hppa. | |
| 1062 | hpux*) case "$host_cpu" in | |
| 1063 | hppa*) gl_cv_func_printf_enomem="guessing yes";; | |
| 1064 | *) gl_cv_func_printf_enomem="guessing no";; | |
| 1065 | esac | |
| 1066 | ;; | |
| 1067 | # Guess yes on IRIX. | |
| 1068 | irix*) gl_cv_func_printf_enomem="guessing yes";; | |
| 1069 | # Guess yes on OSF/1. | |
| 1070 | osf*) gl_cv_func_printf_enomem="guessing yes";; | |
| 1071 | # Guess yes on BeOS. | |
| 1072 | beos*) gl_cv_func_printf_enomem="guessing yes";; | |
| 1073 | # Guess yes on Haiku. | |
| 1074 | haiku*) gl_cv_func_printf_enomem="guessing yes";; | |
| 1075 | # If we don't know, assume the worst. | |
| 1076 | *) gl_cv_func_printf_enomem="guessing no";; | |
| 1077 | esac | |
| 1078 | changequote([,])dnl | |
| 1079 | fi | |
| 1080 | ]) | |
| 1081 | ]) | |
| 1082 | ||
| 1083 | dnl Test whether the snprintf function exists. (ISO C99, POSIX:2001) | |
| 1084 | dnl Result is ac_cv_func_snprintf. | |
| 1085 | ||
| 1086 | AC_DEFUN([gl_SNPRINTF_PRESENCE], | |
| 1087 | [ | |
| 1088 | AC_CHECK_FUNCS_ONCE([snprintf]) | |
| 1089 | ]) | |
| 1090 | ||
| 1091 | dnl Test whether the string produced by the snprintf function is always NUL | |
| 1092 | dnl terminated. (ISO C99, POSIX:2001) | |
| 1093 | dnl Result is gl_cv_func_snprintf_truncation_c99. | |
| 1094 | ||
| 1095 | AC_DEFUN([gl_SNPRINTF_TRUNCATION_C99], | |
| 1096 | [ | |
| 1097 | AC_REQUIRE([AC_PROG_CC]) | |
| 1098 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 35428fb6 | 1099 | AC_REQUIRE([gl_SNPRINTF_PRESENCE]) |
| c4b681fd LC |
1100 | AC_CACHE_CHECK([whether snprintf truncates the result as in C99], |
| 1101 | [gl_cv_func_snprintf_truncation_c99], | |
| 1102 | [ | |
| 9157d901 LC |
1103 | AC_RUN_IFELSE( |
| 1104 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
1105 | #include <stdio.h> |
| 1106 | #include <string.h> | |
| 35428fb6 LC |
1107 | #if HAVE_SNPRINTF |
| 1108 | # define my_snprintf snprintf | |
| 1109 | #else | |
| 1110 | # include <stdarg.h> | |
| 1111 | static int my_snprintf (char *buf, int size, const char *format, ...) | |
| 1112 | { | |
| 1113 | va_list args; | |
| 1114 | int ret; | |
| 1115 | va_start (args, format); | |
| 1116 | ret = vsnprintf (buf, size, format, args); | |
| 1117 | va_end (args); | |
| 1118 | return ret; | |
| 1119 | } | |
| 1120 | #endif | |
| c4b681fd LC |
1121 | static char buf[100]; |
| 1122 | int main () | |
| 1123 | { | |
| 1124 | strcpy (buf, "ABCDEF"); | |
| 35428fb6 | 1125 | my_snprintf (buf, 3, "%d %d", 4567, 89); |
| c4b681fd LC |
1126 | if (memcmp (buf, "45\0DEF", 6) != 0) |
| 1127 | return 1; | |
| 1128 | return 0; | |
| 9157d901 LC |
1129 | }]])], |
| 1130 | [gl_cv_func_snprintf_truncation_c99=yes], | |
| 1131 | [gl_cv_func_snprintf_truncation_c99=no], | |
| 1132 | [ | |
| c4b681fd | 1133 | changequote(,)dnl |
| 9157d901 LC |
1134 | case "$host_os" in |
| 1135 | # Guess yes on glibc systems. | |
| 1136 | *-gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1137 | # Guess yes on FreeBSD >= 5. | |
| 1138 | freebsd[1-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";; | |
| 1139 | freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1140 | # Guess yes on MacOS X >= 10.3. | |
| 1141 | darwin[1-6].*) gl_cv_func_snprintf_truncation_c99="guessing no";; | |
| 1142 | darwin*) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1143 | # Guess yes on OpenBSD >= 3.9. | |
| 1144 | openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) | |
| 1145 | gl_cv_func_snprintf_truncation_c99="guessing no";; | |
| 1146 | openbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1147 | # Guess yes on Solaris >= 2.6. | |
| 49114fd4 LC |
1148 | solaris2.[0-5] | solaris2.[0-5].*) |
| 1149 | gl_cv_func_snprintf_truncation_c99="guessing no";; | |
| 9157d901 LC |
1150 | solaris*) gl_cv_func_snprintf_truncation_c99="guessing yes";; |
| 1151 | # Guess yes on AIX >= 4. | |
| 1152 | aix[1-3]*) gl_cv_func_snprintf_truncation_c99="guessing no";; | |
| 1153 | aix*) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1154 | # Guess yes on HP-UX >= 11. | |
| 1155 | hpux[7-9]* | hpux10*) gl_cv_func_snprintf_truncation_c99="guessing no";; | |
| 1156 | hpux*) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1157 | # Guess yes on IRIX >= 6.5. | |
| 1158 | irix6.5) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1159 | # Guess yes on OSF/1 >= 5. | |
| 1160 | osf[3-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";; | |
| 1161 | osf*) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1162 | # Guess yes on NetBSD >= 3. | |
| 1163 | netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) | |
| 1164 | gl_cv_func_snprintf_truncation_c99="guessing no";; | |
| 1165 | netbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1166 | # Guess yes on BeOS. | |
| 1167 | beos*) gl_cv_func_snprintf_truncation_c99="guessing yes";; | |
| 1168 | # If we don't know, assume the worst. | |
| 1169 | *) gl_cv_func_snprintf_truncation_c99="guessing no";; | |
| 1170 | esac | |
| c4b681fd | 1171 | changequote([,])dnl |
| 9157d901 | 1172 | ]) |
| c4b681fd LC |
1173 | ]) |
| 1174 | ]) | |
| 1175 | ||
| 1176 | dnl Test whether the return value of the snprintf function is the number | |
| 1177 | dnl of bytes (excluding the terminating NUL) that would have been produced | |
| 1178 | dnl if the buffer had been large enough. (ISO C99, POSIX:2001) | |
| 1179 | dnl For example, this test program fails on IRIX 6.5: | |
| 1180 | dnl --------------------------------------------------------------------- | |
| 1181 | dnl #include <stdio.h> | |
| 1182 | dnl int main() | |
| 1183 | dnl { | |
| 1184 | dnl static char buf[8]; | |
| 1185 | dnl int retval = snprintf (buf, 3, "%d", 12345); | |
| 1186 | dnl return retval >= 0 && retval < 3; | |
| 1187 | dnl } | |
| 1188 | dnl --------------------------------------------------------------------- | |
| 1189 | dnl Result is gl_cv_func_snprintf_retval_c99. | |
| 1190 | ||
| 9157d901 | 1191 | AC_DEFUN_ONCE([gl_SNPRINTF_RETVAL_C99], |
| c4b681fd LC |
1192 | [ |
| 1193 | AC_REQUIRE([AC_PROG_CC]) | |
| 1194 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 35428fb6 | 1195 | AC_REQUIRE([gl_SNPRINTF_PRESENCE]) |
| c4b681fd LC |
1196 | AC_CACHE_CHECK([whether snprintf returns a byte count as in C99], |
| 1197 | [gl_cv_func_snprintf_retval_c99], | |
| 1198 | [ | |
| 9157d901 LC |
1199 | AC_RUN_IFELSE( |
| 1200 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
1201 | #include <stdio.h> |
| 1202 | #include <string.h> | |
| 35428fb6 LC |
1203 | #if HAVE_SNPRINTF |
| 1204 | # define my_snprintf snprintf | |
| 1205 | #else | |
| 1206 | # include <stdarg.h> | |
| 1207 | static int my_snprintf (char *buf, int size, const char *format, ...) | |
| 1208 | { | |
| 1209 | va_list args; | |
| 1210 | int ret; | |
| 1211 | va_start (args, format); | |
| 1212 | ret = vsnprintf (buf, size, format, args); | |
| 1213 | va_end (args); | |
| 1214 | return ret; | |
| 1215 | } | |
| 1216 | #endif | |
| c4b681fd LC |
1217 | static char buf[100]; |
| 1218 | int main () | |
| 1219 | { | |
| 1220 | strcpy (buf, "ABCDEF"); | |
| 35428fb6 | 1221 | if (my_snprintf (buf, 3, "%d %d", 4567, 89) != 7) |
| c4b681fd | 1222 | return 1; |
| 35428fb6 | 1223 | if (my_snprintf (buf, 0, "%d %d", 4567, 89) != 7) |
| 49114fd4 | 1224 | return 2; |
| 35428fb6 | 1225 | if (my_snprintf (NULL, 0, "%d %d", 4567, 89) != 7) |
| 49114fd4 | 1226 | return 3; |
| c4b681fd | 1227 | return 0; |
| 9157d901 LC |
1228 | }]])], |
| 1229 | [gl_cv_func_snprintf_retval_c99=yes], | |
| 1230 | [gl_cv_func_snprintf_retval_c99=no], | |
| 1231 | [ | |
| c4b681fd | 1232 | changequote(,)dnl |
| 9157d901 LC |
1233 | case "$host_os" in |
| 1234 | # Guess yes on glibc systems. | |
| 1235 | *-gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";; | |
| 1236 | # Guess yes on FreeBSD >= 5. | |
| 1237 | freebsd[1-4]*) gl_cv_func_snprintf_retval_c99="guessing no";; | |
| 1238 | freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; | |
| 1239 | # Guess yes on MacOS X >= 10.3. | |
| 1240 | darwin[1-6].*) gl_cv_func_snprintf_retval_c99="guessing no";; | |
| 1241 | darwin*) gl_cv_func_snprintf_retval_c99="guessing yes";; | |
| 1242 | # Guess yes on OpenBSD >= 3.9. | |
| 1243 | openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) | |
| 1244 | gl_cv_func_snprintf_retval_c99="guessing no";; | |
| 1245 | openbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; | |
| 49114fd4 LC |
1246 | # Guess yes on Solaris >= 2.10. |
| 1247 | solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";; | |
| 1248 | solaris*) gl_cv_func_printf_sizes_c99="guessing no";; | |
| 9157d901 LC |
1249 | # Guess yes on AIX >= 4. |
| 1250 | aix[1-3]*) gl_cv_func_snprintf_retval_c99="guessing no";; | |
| 1251 | aix*) gl_cv_func_snprintf_retval_c99="guessing yes";; | |
| 1252 | # Guess yes on NetBSD >= 3. | |
| 1253 | netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) | |
| 1254 | gl_cv_func_snprintf_retval_c99="guessing no";; | |
| 1255 | netbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; | |
| 1256 | # Guess yes on BeOS. | |
| 1257 | beos*) gl_cv_func_snprintf_retval_c99="guessing yes";; | |
| 1258 | # If we don't know, assume the worst. | |
| 1259 | *) gl_cv_func_snprintf_retval_c99="guessing no";; | |
| 1260 | esac | |
| c4b681fd | 1261 | changequote([,])dnl |
| 9157d901 | 1262 | ]) |
| c4b681fd LC |
1263 | ]) |
| 1264 | ]) | |
| 1265 | ||
| 1266 | dnl Test whether the snprintf function supports the %n format directive | |
| 1267 | dnl also in truncated portions of the format string. (ISO C99, POSIX:2001) | |
| 1268 | dnl Result is gl_cv_func_snprintf_directive_n. | |
| 1269 | ||
| 1270 | AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N], | |
| 1271 | [ | |
| 1272 | AC_REQUIRE([AC_PROG_CC]) | |
| 1273 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 35428fb6 | 1274 | AC_REQUIRE([gl_SNPRINTF_PRESENCE]) |
| c4b681fd LC |
1275 | AC_CACHE_CHECK([whether snprintf fully supports the 'n' directive], |
| 1276 | [gl_cv_func_snprintf_directive_n], | |
| 1277 | [ | |
| 9157d901 LC |
1278 | AC_RUN_IFELSE( |
| 1279 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
1280 | #include <stdio.h> |
| 1281 | #include <string.h> | |
| 35428fb6 LC |
1282 | #if HAVE_SNPRINTF |
| 1283 | # define my_snprintf snprintf | |
| 1284 | #else | |
| 1285 | # include <stdarg.h> | |
| 1286 | static int my_snprintf (char *buf, int size, const char *format, ...) | |
| 1287 | { | |
| 1288 | va_list args; | |
| 1289 | int ret; | |
| 1290 | va_start (args, format); | |
| 1291 | ret = vsnprintf (buf, size, format, args); | |
| 1292 | va_end (args); | |
| 1293 | return ret; | |
| 1294 | } | |
| 1295 | #endif | |
| c4b681fd LC |
1296 | static char fmtstring[10]; |
| 1297 | static char buf[100]; | |
| 1298 | int main () | |
| 1299 | { | |
| 1300 | int count = -1; | |
| 1301 | /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) | |
| 1302 | support %n in format strings in read-only memory but not in writable | |
| 1303 | memory. */ | |
| 1304 | strcpy (fmtstring, "%d %n"); | |
| 35428fb6 | 1305 | my_snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55); |
| c4b681fd LC |
1306 | if (count != 6) |
| 1307 | return 1; | |
| 1308 | return 0; | |
| 9157d901 LC |
1309 | }]])], |
| 1310 | [gl_cv_func_snprintf_directive_n=yes], | |
| 1311 | [gl_cv_func_snprintf_directive_n=no], | |
| 1312 | [ | |
| c4b681fd | 1313 | changequote(,)dnl |
| 9157d901 LC |
1314 | case "$host_os" in |
| 1315 | # Guess yes on glibc systems. | |
| 1316 | *-gnu*) gl_cv_func_snprintf_directive_n="guessing yes";; | |
| 1317 | # Guess yes on FreeBSD >= 5. | |
| 1318 | freebsd[1-4]*) gl_cv_func_snprintf_directive_n="guessing no";; | |
| 1319 | freebsd* | kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";; | |
| 1320 | # Guess yes on MacOS X >= 10.3. | |
| 1321 | darwin[1-6].*) gl_cv_func_snprintf_directive_n="guessing no";; | |
| 1322 | darwin*) gl_cv_func_snprintf_directive_n="guessing yes";; | |
| 1323 | # Guess yes on Solaris >= 2.6. | |
| 49114fd4 LC |
1324 | solaris2.[0-5] | solaris2.[0-5].*) |
| 1325 | gl_cv_func_snprintf_directive_n="guessing no";; | |
| 9157d901 LC |
1326 | solaris*) gl_cv_func_snprintf_directive_n="guessing yes";; |
| 1327 | # Guess yes on AIX >= 4. | |
| 1328 | aix[1-3]*) gl_cv_func_snprintf_directive_n="guessing no";; | |
| 1329 | aix*) gl_cv_func_snprintf_directive_n="guessing yes";; | |
| 1330 | # Guess yes on IRIX >= 6.5. | |
| 1331 | irix6.5) gl_cv_func_snprintf_directive_n="guessing yes";; | |
| 1332 | # Guess yes on OSF/1 >= 5. | |
| 1333 | osf[3-4]*) gl_cv_func_snprintf_directive_n="guessing no";; | |
| 1334 | osf*) gl_cv_func_snprintf_directive_n="guessing yes";; | |
| 1335 | # Guess yes on NetBSD >= 3. | |
| 1336 | netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) | |
| 1337 | gl_cv_func_snprintf_directive_n="guessing no";; | |
| 1338 | netbsd*) gl_cv_func_snprintf_directive_n="guessing yes";; | |
| 1339 | # Guess yes on BeOS. | |
| 1340 | beos*) gl_cv_func_snprintf_directive_n="guessing yes";; | |
| 1341 | # If we don't know, assume the worst. | |
| 1342 | *) gl_cv_func_snprintf_directive_n="guessing no";; | |
| 1343 | esac | |
| c4b681fd | 1344 | changequote([,])dnl |
| 9157d901 | 1345 | ]) |
| c4b681fd LC |
1346 | ]) |
| 1347 | ]) | |
| 1348 | ||
| 1349 | dnl Test whether the snprintf function, when passed a size = 1, writes any | |
| 1350 | dnl output without bounds in this case, behaving like sprintf. This is the | |
| 1351 | dnl case on Linux libc5. | |
| 1352 | dnl Result is gl_cv_func_snprintf_size1. | |
| 1353 | ||
| 1354 | AC_DEFUN([gl_SNPRINTF_SIZE1], | |
| 1355 | [ | |
| 1356 | AC_REQUIRE([AC_PROG_CC]) | |
| 35428fb6 | 1357 | AC_REQUIRE([gl_SNPRINTF_PRESENCE]) |
| c4b681fd LC |
1358 | AC_CACHE_CHECK([whether snprintf respects a size of 1], |
| 1359 | [gl_cv_func_snprintf_size1], | |
| 1360 | [ | |
| 9157d901 LC |
1361 | AC_RUN_IFELSE( |
| 1362 | [AC_LANG_SOURCE([[ | |
| c4b681fd | 1363 | #include <stdio.h> |
| 35428fb6 LC |
1364 | #if HAVE_SNPRINTF |
| 1365 | # define my_snprintf snprintf | |
| 1366 | #else | |
| 1367 | # include <stdarg.h> | |
| 1368 | static int my_snprintf (char *buf, int size, const char *format, ...) | |
| 1369 | { | |
| 1370 | va_list args; | |
| 1371 | int ret; | |
| 1372 | va_start (args, format); | |
| 1373 | ret = vsnprintf (buf, size, format, args); | |
| 1374 | va_end (args); | |
| 1375 | return ret; | |
| 1376 | } | |
| 1377 | #endif | |
| c4b681fd LC |
1378 | int main() |
| 1379 | { | |
| 1380 | static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; | |
| 35428fb6 | 1381 | my_snprintf (buf, 1, "%d", 12345); |
| c4b681fd | 1382 | return buf[1] != 'E'; |
| 9157d901 LC |
1383 | }]])], |
| 1384 | [gl_cv_func_snprintf_size1=yes], | |
| 1385 | [gl_cv_func_snprintf_size1=no], | |
| 1386 | [gl_cv_func_snprintf_size1="guessing yes"]) | |
| c4b681fd LC |
1387 | ]) |
| 1388 | ]) | |
| 1389 | ||
| 1390 | dnl Test whether the vsnprintf function, when passed a zero size, produces no | |
| 1391 | dnl output. (ISO C99, POSIX:2001) | |
| 1392 | dnl For example, snprintf nevertheless writes a NUL byte in this case | |
| 1393 | dnl on OSF/1 5.1: | |
| 1394 | dnl --------------------------------------------------------------------- | |
| 1395 | dnl #include <stdio.h> | |
| 1396 | dnl int main() | |
| 1397 | dnl { | |
| 1398 | dnl static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; | |
| 1399 | dnl snprintf (buf, 0, "%d", 12345); | |
| 1400 | dnl return buf[0] != 'D'; | |
| 1401 | dnl } | |
| 1402 | dnl --------------------------------------------------------------------- | |
| 1403 | dnl And vsnprintf writes any output without bounds in this case, behaving like | |
| 1404 | dnl vsprintf, on HP-UX 11 and OSF/1 5.1: | |
| 1405 | dnl --------------------------------------------------------------------- | |
| 1406 | dnl #include <stdarg.h> | |
| 1407 | dnl #include <stdio.h> | |
| 1408 | dnl static int my_snprintf (char *buf, int size, const char *format, ...) | |
| 1409 | dnl { | |
| 1410 | dnl va_list args; | |
| 1411 | dnl int ret; | |
| 1412 | dnl va_start (args, format); | |
| 1413 | dnl ret = vsnprintf (buf, size, format, args); | |
| 1414 | dnl va_end (args); | |
| 1415 | dnl return ret; | |
| 1416 | dnl } | |
| 1417 | dnl int main() | |
| 1418 | dnl { | |
| 1419 | dnl static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; | |
| 1420 | dnl my_snprintf (buf, 0, "%d", 12345); | |
| 1421 | dnl return buf[0] != 'D'; | |
| 1422 | dnl } | |
| 1423 | dnl --------------------------------------------------------------------- | |
| 1424 | dnl Result is gl_cv_func_vsnprintf_zerosize_c99. | |
| 1425 | ||
| 1426 | AC_DEFUN([gl_VSNPRINTF_ZEROSIZE_C99], | |
| 1427 | [ | |
| 1428 | AC_REQUIRE([AC_PROG_CC]) | |
| 1429 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 1430 | AC_CACHE_CHECK([whether vsnprintf respects a zero size as in C99], | |
| 1431 | [gl_cv_func_vsnprintf_zerosize_c99], | |
| 1432 | [ | |
| 9157d901 LC |
1433 | AC_RUN_IFELSE( |
| 1434 | [AC_LANG_SOURCE([[ | |
| c4b681fd LC |
1435 | #include <stdarg.h> |
| 1436 | #include <stdio.h> | |
| 1437 | static int my_snprintf (char *buf, int size, const char *format, ...) | |
| 1438 | { | |
| 1439 | va_list args; | |
| 1440 | int ret; | |
| 1441 | va_start (args, format); | |
| 1442 | ret = vsnprintf (buf, size, format, args); | |
| 1443 | va_end (args); | |
| 1444 | return ret; | |
| 1445 | } | |
| 1446 | int main() | |
| 1447 | { | |
| 1448 | static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; | |
| 1449 | my_snprintf (buf, 0, "%d", 12345); | |
| 1450 | return buf[0] != 'D'; | |
| 9157d901 LC |
1451 | }]])], |
| 1452 | [gl_cv_func_vsnprintf_zerosize_c99=yes], | |
| 1453 | [gl_cv_func_vsnprintf_zerosize_c99=no], | |
| 1454 | [ | |
| c4b681fd | 1455 | changequote(,)dnl |
| 9157d901 LC |
1456 | case "$host_os" in |
| 1457 | # Guess yes on glibc systems. | |
| 1458 | *-gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; | |
| 1459 | # Guess yes on FreeBSD >= 5. | |
| 1460 | freebsd[1-4]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; | |
| 1461 | freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; | |
| 1462 | # Guess yes on MacOS X >= 10.3. | |
| 1463 | darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; | |
| 1464 | darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; | |
| 1465 | # Guess yes on Cygwin. | |
| 1466 | cygwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; | |
| 1467 | # Guess yes on Solaris >= 2.6. | |
| 49114fd4 LC |
1468 | solaris2.[0-5] | solaris2.[0-5].*) |
| 1469 | gl_cv_func_vsnprintf_zerosize_c99="guessing no";; | |
| 9157d901 LC |
1470 | solaris*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; |
| 1471 | # Guess yes on AIX >= 4. | |
| 1472 | aix[1-3]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; | |
| 1473 | aix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; | |
| 1474 | # Guess yes on IRIX >= 6.5. | |
| 1475 | irix6.5) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; | |
| 1476 | # Guess yes on NetBSD >= 3. | |
| 1477 | netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) | |
| 1478 | gl_cv_func_vsnprintf_zerosize_c99="guessing no";; | |
| 1479 | netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; | |
| 1480 | # Guess yes on BeOS. | |
| 1481 | beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; | |
| 1482 | # Guess yes on mingw. | |
| 1483 | mingw* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; | |
| 1484 | # If we don't know, assume the worst. | |
| 1485 | *) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; | |
| 1486 | esac | |
| c4b681fd | 1487 | changequote([,])dnl |
| 9157d901 | 1488 | ]) |
| c4b681fd LC |
1489 | ]) |
| 1490 | ]) | |
| 1491 | ||
| 1492 | dnl The results of these tests on various platforms are: | |
| 1493 | dnl | |
| 1494 | dnl 1 = gl_PRINTF_SIZES_C99 | |
| 1495 | dnl 2 = gl_PRINTF_LONG_DOUBLE | |
| 1496 | dnl 3 = gl_PRINTF_INFINITE | |
| 1497 | dnl 4 = gl_PRINTF_INFINITE_LONG_DOUBLE | |
| 1498 | dnl 5 = gl_PRINTF_DIRECTIVE_A | |
| 1499 | dnl 6 = gl_PRINTF_DIRECTIVE_F | |
| 1500 | dnl 7 = gl_PRINTF_DIRECTIVE_N | |
| 1501 | dnl 8 = gl_PRINTF_DIRECTIVE_LS | |
| 1502 | dnl 9 = gl_PRINTF_POSITIONS | |
| 1503 | dnl 10 = gl_PRINTF_FLAG_GROUPING | |
| 1504 | dnl 11 = gl_PRINTF_FLAG_LEFTADJUST | |
| 1505 | dnl 12 = gl_PRINTF_FLAG_ZERO | |
| 1506 | dnl 13 = gl_PRINTF_PRECISION | |
| 1507 | dnl 14 = gl_PRINTF_ENOMEM | |
| 1508 | dnl 15 = gl_SNPRINTF_PRESENCE | |
| 1509 | dnl 16 = gl_SNPRINTF_TRUNCATION_C99 | |
| 1510 | dnl 17 = gl_SNPRINTF_RETVAL_C99 | |
| 1511 | dnl 18 = gl_SNPRINTF_DIRECTIVE_N | |
| 1512 | dnl 19 = gl_SNPRINTF_SIZE1 | |
| 1513 | dnl 20 = gl_VSNPRINTF_ZEROSIZE_C99 | |
| 1514 | dnl | |
| 1515 | dnl 1 = checking whether printf supports size specifiers as in C99... | |
| 1516 | dnl 2 = checking whether printf supports 'long double' arguments... | |
| 1517 | dnl 3 = checking whether printf supports infinite 'double' arguments... | |
| 1518 | dnl 4 = checking whether printf supports infinite 'long double' arguments... | |
| 1519 | dnl 5 = checking whether printf supports the 'a' and 'A' directives... | |
| 1520 | dnl 6 = checking whether printf supports the 'F' directive... | |
| 1521 | dnl 7 = checking whether printf supports the 'n' directive... | |
| 1522 | dnl 8 = checking whether printf supports the 'ls' directive... | |
| 1523 | dnl 9 = checking whether printf supports POSIX/XSI format strings with positions... | |
| 1524 | dnl 10 = checking whether printf supports the grouping flag... | |
| 1525 | dnl 11 = checking whether printf supports the left-adjust flag correctly... | |
| 1526 | dnl 12 = checking whether printf supports the zero flag correctly... | |
| 1527 | dnl 13 = checking whether printf supports large precisions... | |
| 1528 | dnl 14 = checking whether printf survives out-of-memory conditions... | |
| 1529 | dnl 15 = checking for snprintf... | |
| 1530 | dnl 16 = checking whether snprintf truncates the result as in C99... | |
| 1531 | dnl 17 = checking whether snprintf returns a byte count as in C99... | |
| 1532 | dnl 18 = checking whether snprintf fully supports the 'n' directive... | |
| 1533 | dnl 19 = checking whether snprintf respects a size of 1... | |
| 1534 | dnl 20 = checking whether vsnprintf respects a zero size as in C99... | |
| 1535 | dnl | |
| 1536 | dnl . = yes, # = no. | |
| 1537 | dnl | |
| 1538 | dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | |
| 1539 | dnl glibc 2.5 . . . . . . . . . . . . . . . . . . . . | |
| 1540 | dnl glibc 2.3.6 . . . . # . . . . . . . . . . . . . . . | |
| 1541 | dnl FreeBSD 5.4, 6.1 . . . . # . . . . . . # . # . . . . . . | |
| 0f00f2c3 | 1542 | dnl MacOS X 10.5.8 . . . # # . . . . . . # . . . . . . . . |
| c4b681fd LC |
1543 | dnl MacOS X 10.3.9 . . . . # . . . . . . # . # . . . . . . |
| 1544 | dnl OpenBSD 3.9, 4.0 . . # # # # . # . # . # . # . . . . . . | |
| 1545 | dnl Cygwin 1.7.0 (2009) . . . # . . . ? . . . . . ? . . . . . . | |
| 1546 | dnl Cygwin 1.5.25 (2008) . . . # # . . # . . . . . # . . . . . . | |
| 1547 | dnl Cygwin 1.5.19 (2006) # . . # # # . # . # . # # # . . . . . . | |
| f0007cad | 1548 | dnl Solaris 11 2011-11 . . # # # . . # . . . # . . . . . . . . |
| 0f00f2c3 | 1549 | dnl Solaris 10 . . # # # . . # . . . # # . . . . . . . |
| 49114fd4 | 1550 | dnl Solaris 2.6 ... 9 # . # # # # . # . . . # # . . . # . . . |
| c4b681fd | 1551 | dnl Solaris 2.5.1 # . # # # # . # . . . # . . # # # # # # |
| 231c0e0e LC |
1552 | dnl AIX 7.1 . . # # # . . . . . . # # . . . . . . . |
| 1553 | dnl AIX 5.2 . . # # # . . . . . . # . . . . . . . . | |
| 49114fd4 | 1554 | dnl AIX 4.3.2, 5.1 # . # # # # . . . . . # . . . . # . . . |
| c4b681fd LC |
1555 | dnl HP-UX 11.31 . . . . # . . . . . . # . . . . # # . . |
| 1556 | dnl HP-UX 11.{00,11,23} # . . . # # . . . . . # . . . . # # . # | |
| 1557 | dnl HP-UX 10.20 # . # . # # . ? . . # # . . . . # # ? # | |
| 1558 | dnl IRIX 6.5 # . # # # # . # . . . # . . . . # . . . | |
| 1559 | dnl OSF/1 5.1 # . # # # # . . . . . # . . . . # . . # | |
| 1560 | dnl OSF/1 4.0d # . # # # # . . . . . # . . # # # # # # | |
| 0f00f2c3 | 1561 | dnl NetBSD 5.0 . . . # # . . . . . . # . # . . . . . . |
| c4b681fd LC |
1562 | dnl NetBSD 4.0 . ? ? ? ? ? . ? . ? ? ? ? ? . . . ? ? ? |
| 1563 | dnl NetBSD 3.0 . . . . # # . ? # # ? # . # . . . . . . | |
| 49114fd4 LC |
1564 | dnl Haiku . . . # # # . # . . . . . ? . . ? . . . |
| 1565 | dnl BeOS # # . # # # . ? # . ? . # ? . . ? . . . | |
| 35428fb6 LC |
1566 | dnl old mingw / msvcrt # # # # # # . . # # . # # ? . # # # . . |
| 1567 | dnl MSVC 9 # # # # # # # . # # . # # ? # # # # . . | |
| 1568 | dnl mingw 2009-2011 . # . # . . . . # # . . . ? . . . . . . | |
| 1569 | dnl mingw-w64 2011 # # # # # # . . # # . # # ? . # # # . . |