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authorLorenz Kästle <12514511+RincewindsHat@users.noreply.github.com>2024-10-31 16:27:12 +0100
committerLorenz Kästle <12514511+RincewindsHat@users.noreply.github.com>2024-10-31 16:27:12 +0100
commit5be04ec2ceb1df77afbca4fcbf9e92a712612d6f (patch)
tree2b2e1c71dffae827c8e45cd4cccc375093d03486 /gl/m4/printf.m4
parent6d1d1dac32841d5ca6ee51bb09b30a6c604b17e2 (diff)
downloadmonitoring-plugins-5be04ec2ceb1df77afbca4fcbf9e92a712612d6f.tar.gz
Sync with the latest Gnulib code (d4ec02b3cc)
Diffstat (limited to 'gl/m4/printf.m4')
-rw-r--r--gl/m4/printf.m4931
1 files changed, 718 insertions, 213 deletions
diff --git a/gl/m4/printf.m4 b/gl/m4/printf.m4
index 4e65abc6..0cb14d6f 100644
--- a/gl/m4/printf.m4
+++ b/gl/m4/printf.m4
@@ -1,5 +1,6 @@
1# printf.m4 serial 73 1# printf.m4
2dnl Copyright (C) 2003, 2007-2023 Free Software Foundation, Inc. 2# serial 91
3dnl Copyright (C) 2003, 2007-2024 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation 4dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it, 5dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved. 6dnl with or without modifications, as long as this notice is preserved.
@@ -63,7 +64,7 @@ changequote(,)dnl
63 # Guess yes on glibc systems. 64 # Guess yes on glibc systems.
64 *-gnu* | gnu*) gl_cv_func_printf_sizes_c99="guessing yes";; 65 *-gnu* | gnu*) gl_cv_func_printf_sizes_c99="guessing yes";;
65 # Guess yes on musl systems. 66 # Guess yes on musl systems.
66 *-musl*) gl_cv_func_printf_sizes_c99="guessing yes";; 67 *-musl* | midipix*) gl_cv_func_printf_sizes_c99="guessing yes";;
67 # Guess yes on FreeBSD >= 5. 68 # Guess yes on FreeBSD >= 5.
68 freebsd[1-4].*) gl_cv_func_printf_sizes_c99="guessing no";; 69 freebsd[1-4].*) gl_cv_func_printf_sizes_c99="guessing no";;
69 freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";; 70 freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
@@ -86,7 +87,8 @@ changequote(,)dnl
86 linux*-android*) gl_cv_func_printf_sizes_c99="guessing yes";; 87 linux*-android*) gl_cv_func_printf_sizes_c99="guessing yes";;
87changequote([,])dnl 88changequote([,])dnl
88 # Guess yes on MSVC, no on mingw. 89 # Guess yes on MSVC, no on mingw.
89 mingw*) AC_EGREP_CPP([Known], [ 90 windows*-msvc*) gl_cv_func_printf_sizes_c99="guessing yes" ;;
91 mingw* | windows*) AC_EGREP_CPP([Known], [
90#ifdef _MSC_VER 92#ifdef _MSC_VER
91 Known 93 Known
92#endif 94#endif
@@ -101,6 +103,92 @@ changequote([,])dnl
101 ]) 103 ])
102]) 104])
103 105
106dnl Test whether the *printf family of functions supports the 'w8', 'w16',
107dnl 'w32', 'w64', 'wf8', 'wf16', 'wf32', 'wf64' size specifiers. (ISO C23)
108dnl Result is gl_cv_func_printf_sizes_c23.
109
110AC_DEFUN([gl_PRINTF_SIZES_C23],
111[
112 AC_REQUIRE([AC_PROG_CC])
113 AC_REQUIRE([gl_AC_HEADER_STDINT_H])
114 AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
115 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
116 AC_CACHE_CHECK([whether printf supports size specifiers as in C23],
117 [gl_cv_func_printf_sizes_c23],
118 [
119 AC_RUN_IFELSE(
120 [AC_LANG_SOURCE([[
121#include <stddef.h>
122#include <stdio.h>
123#include <string.h>
124#include <sys/types.h>
125#if HAVE_STDINT_H_WITH_UINTMAX
126# include <stdint.h>
127#endif
128#if HAVE_INTTYPES_H_WITH_UINTMAX
129# include <inttypes.h>
130#endif
131static char buf[100];
132int main ()
133{
134 int result = 0;
135 buf[0] = '\0';
136 if (sprintf (buf, "%w8u %d", (uint8_t) 123, 33, 44, 55) < 0
137 || strcmp (buf, "123 33") != 0)
138 result |= 1;
139 buf[0] = '\0';
140 if (sprintf (buf, "%wf8u %d", (uint_fast8_t) 123, 33, 44, 55) < 0
141 || strcmp (buf, "123 33") != 0)
142 result |= 1;
143 buf[0] = '\0';
144 if (sprintf (buf, "%w16u %d", (uint16_t) 12345, 33, 44, 55) < 0
145 || strcmp (buf, "12345 33") != 0)
146 result |= 2;
147 buf[0] = '\0';
148 if (sprintf (buf, "%wf16u %d", (uint_fast16_t) 12345, 33, 44, 55) < 0
149 || strcmp (buf, "12345 33") != 0)
150 result |= 2;
151 buf[0] = '\0';
152 if (sprintf (buf, "%w32u %d", (uint32_t) 12345671, 33, 44, 55) < 0
153 || strcmp (buf, "12345671 33") != 0)
154 result |= 4;
155 buf[0] = '\0';
156 if (sprintf (buf, "%wf32u %d", (uint_fast32_t) 12345671, 33, 44, 55) < 0
157 || strcmp (buf, "12345671 33") != 0)
158 result |= 4;
159#if HAVE_STDINT_H_WITH_UINTMAX || HAVE_INTTYPES_H_WITH_UINTMAX
160 buf[0] = '\0';
161 if (sprintf (buf, "%w64u %d", (uint64_t) 12345671, 33, 44, 55) < 0
162 || strcmp (buf, "12345671 33") != 0)
163 result |= 8;
164 buf[0] = '\0';
165 if (sprintf (buf, "%wf64u %d", (uint_fast64_t) 12345671, 33, 44, 55) < 0
166 || strcmp (buf, "12345671 33") != 0)
167 result |= 8;
168#else
169 result |= 8;
170#endif
171 return result;
172}]])],
173 [gl_cv_func_printf_sizes_c23=yes],
174 [gl_cv_func_printf_sizes_c23=no],
175 [
176 case "$host_os" in
177 # Guess no on glibc systems.
178 *-gnu* | gnu*) gl_cv_func_printf_sizes_c23="guessing no";;
179 # Guess no on musl systems.
180 *-musl* | midipix*) gl_cv_func_printf_sizes_c23="guessing no";;
181 # Guess no on Android.
182 linux*-android*) gl_cv_func_printf_sizes_c23="guessing no";;
183 # Guess no on native Windows.
184 mingw* | windows*) gl_cv_func_printf_sizes_c23="guessing no";;
185 # If we don't know, obey --enable-cross-guesses.
186 *) gl_cv_func_printf_sizes_c23="$gl_cross_guess_normal";;
187 esac
188 ])
189 ])
190])
191
104dnl Test whether the *printf family of functions supports 'long double' 192dnl Test whether the *printf family of functions supports 'long double'
105dnl arguments together with the 'L' size specifier. (ISO C99, POSIX:2001) 193dnl arguments together with the 'L' size specifier. (ISO C99, POSIX:2001)
106dnl Result is gl_cv_func_printf_long_double. 194dnl Result is gl_cv_func_printf_long_double.
@@ -137,20 +225,21 @@ int main ()
137 [gl_cv_func_printf_long_double=yes], 225 [gl_cv_func_printf_long_double=yes],
138 [gl_cv_func_printf_long_double=no], 226 [gl_cv_func_printf_long_double=no],
139 [case "$host_os" in 227 [case "$host_os" in
140 # Guess no on BeOS. 228 # Guess no on BeOS.
141 beos*) gl_cv_func_printf_long_double="guessing no";; 229 beos*) gl_cv_func_printf_long_double="guessing no";;
142 # Guess yes on Android. 230 # Guess yes on Android.
143 linux*-android*) gl_cv_func_printf_long_double="guessing yes";; 231 linux*-android*) gl_cv_func_printf_long_double="guessing yes";;
144 # Guess yes on MSVC, no on mingw. 232 # Guess yes on MSVC, no on mingw.
145 mingw*) AC_EGREP_CPP([Known], [ 233 windows*-msvc*) gl_cv_func_printf_long_double="guessing yes" ;;
234 mingw* | windows*) AC_EGREP_CPP([Known], [
146#ifdef _MSC_VER 235#ifdef _MSC_VER
147 Known 236 Known
148#endif 237#endif
149 ], 238 ],
150 [gl_cv_func_printf_long_double="guessing yes"], 239 [gl_cv_func_printf_long_double="guessing yes"],
151 [gl_cv_func_printf_long_double="guessing no"]) 240 [gl_cv_func_printf_long_double="guessing no"])
152 ;; 241 ;;
153 *) gl_cv_func_printf_long_double="guessing yes";; 242 *) gl_cv_func_printf_long_double="guessing yes";;
154 esac 243 esac
155 ]) 244 ])
156 ]) 245 ])
@@ -244,7 +333,7 @@ changequote(,)dnl
244 # Guess yes on glibc systems. 333 # Guess yes on glibc systems.
245 *-gnu* | gnu*) gl_cv_func_printf_infinite="guessing yes";; 334 *-gnu* | gnu*) gl_cv_func_printf_infinite="guessing yes";;
246 # Guess yes on musl systems. 335 # Guess yes on musl systems.
247 *-musl*) gl_cv_func_printf_infinite="guessing yes";; 336 *-musl* | midipix*) gl_cv_func_printf_infinite="guessing yes";;
248 # Guess yes on FreeBSD >= 6. 337 # Guess yes on FreeBSD >= 6.
249 freebsd[1-5].*) gl_cv_func_printf_infinite="guessing no";; 338 freebsd[1-5].*) gl_cv_func_printf_infinite="guessing no";;
250 freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";; 339 freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";;
@@ -268,7 +357,8 @@ changequote(,)dnl
268 linux*-android*) gl_cv_func_printf_infinite="guessing no";; 357 linux*-android*) gl_cv_func_printf_infinite="guessing no";;
269changequote([,])dnl 358changequote([,])dnl
270 # Guess yes on MSVC, no on mingw. 359 # Guess yes on MSVC, no on mingw.
271 mingw*) AC_EGREP_CPP([Known], [ 360 windows*-msvc*) gl_cv_func_printf_infinite="guessing yes" ;;
361 mingw* | windows*) AC_EGREP_CPP([Known], [
272#ifdef _MSC_VER 362#ifdef _MSC_VER
273 Known 363 Known
274#endif 364#endif
@@ -467,7 +557,7 @@ changequote(,)dnl
467 # Guess yes on glibc systems. 557 # Guess yes on glibc systems.
468 *-gnu* | gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";; 558 *-gnu* | gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";;
469 # Guess yes on musl systems. 559 # Guess yes on musl systems.
470 *-musl*) gl_cv_func_printf_infinite_long_double="guessing yes";; 560 *-musl* | midipix*) gl_cv_func_printf_infinite_long_double="guessing yes";;
471 # Guess yes on FreeBSD >= 6. 561 # Guess yes on FreeBSD >= 6.
472 freebsd[1-5].*) gl_cv_func_printf_infinite_long_double="guessing no";; 562 freebsd[1-5].*) gl_cv_func_printf_infinite_long_double="guessing no";;
473 freebsd* | kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; 563 freebsd* | kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";;
@@ -482,7 +572,8 @@ changequote(,)dnl
482 linux*-android*) gl_cv_func_printf_infinite_long_double="guessing no";; 572 linux*-android*) gl_cv_func_printf_infinite_long_double="guessing no";;
483changequote([,])dnl 573changequote([,])dnl
484 # Guess yes on MSVC, no on mingw. 574 # Guess yes on MSVC, no on mingw.
485 mingw*) AC_EGREP_CPP([Known], [ 575 windows*-msvc*) gl_cv_func_printf_infinite_long_double="guessing yes" ;;
576 mingw* | windows*) AC_EGREP_CPP([Known], [
486#ifdef _MSC_VER 577#ifdef _MSC_VER
487 Known 578 Known
488#endif 579#endif
@@ -591,11 +682,11 @@ int main ()
591 [gl_cv_func_printf_directive_a="guessing no"]) 682 [gl_cv_func_printf_directive_a="guessing no"])
592 ;; 683 ;;
593 # Guess yes on musl systems. 684 # Guess yes on musl systems.
594 *-musl*) gl_cv_func_printf_directive_a="guessing yes";; 685 *-musl* | midipix*) gl_cv_func_printf_directive_a="guessing yes";;
595 # Guess no on Android. 686 # Guess no on Android.
596 linux*-android*) gl_cv_func_printf_directive_a="guessing no";; 687 linux*-android*) gl_cv_func_printf_directive_a="guessing no";;
597 # Guess no on native Windows. 688 # Guess no on native Windows.
598 mingw*) gl_cv_func_printf_directive_a="guessing no";; 689 mingw* | windows*) gl_cv_func_printf_directive_a="guessing no";;
599 # If we don't know, obey --enable-cross-guesses. 690 # If we don't know, obey --enable-cross-guesses.
600 *) gl_cv_func_printf_directive_a="$gl_cross_guess_normal";; 691 *) gl_cv_func_printf_directive_a="$gl_cross_guess_normal";;
601 esac 692 esac
@@ -603,6 +694,116 @@ int main ()
603 ]) 694 ])
604]) 695])
605 696
697dnl Test whether the *printf family of functions supports the 'b' conversion
698dnl specifier for binary output of integers.
699dnl (ISO C23)
700dnl Result is gl_cv_func_printf_directive_b.
701
702AC_DEFUN([gl_PRINTF_DIRECTIVE_B],
703[
704 AC_REQUIRE([AC_PROG_CC])
705 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
706 AC_CACHE_CHECK([whether printf supports the 'b' directive],
707 [gl_cv_func_printf_directive_b],
708 [
709 AC_RUN_IFELSE(
710 [AC_LANG_SOURCE([[
711#include <stdio.h>
712#include <string.h>
713static char buf[100];
714int main ()
715{
716 int result = 0;
717 if (sprintf (buf, "%b %d", 12345, 33, 44, 55) < 0
718 || strcmp (buf, "11000000111001 33") != 0)
719 result |= 1;
720 return result;
721}]])],
722 [gl_cv_func_printf_directive_b=yes],
723 [gl_cv_func_printf_directive_b=no],
724 [
725 case "$host_os" in
726 # Guess yes on glibc >= 2.35 systems.
727 *-gnu* | gnu*)
728 AC_EGREP_CPP([Lucky], [
729 #include <features.h>
730 #ifdef __GNU_LIBRARY__
731 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 35) || (__GLIBC__ > 2)
732 Lucky user
733 #endif
734 #endif
735 ],
736 [gl_cv_func_printf_directive_uppercase_b="guessing yes"],
737 [gl_cv_func_printf_directive_uppercase_b="guessing no"])
738 ;;
739 # Guess no on musl systems.
740 *-musl* | midipix*) gl_cv_func_printf_directive_b="guessing no";;
741 # Guess no on Android.
742 linux*-android*) gl_cv_func_printf_directive_b="guessing no";;
743 # Guess no on native Windows.
744 mingw* | windows*) gl_cv_func_printf_directive_b="guessing no";;
745 # If we don't know, obey --enable-cross-guesses.
746 *) gl_cv_func_printf_directive_b="$gl_cross_guess_normal";;
747 esac
748 ])
749 ])
750])
751
752dnl Test whether the *printf family of functions supports the 'B' conversion
753dnl specifier for binary output of integers.
754dnl (GNU, encouraged by ISO C23 § 7.23.6.1)
755dnl Result is gl_cv_func_printf_directive_uppercase_b.
756
757AC_DEFUN([gl_PRINTF_DIRECTIVE_UPPERCASE_B],
758[
759 AC_REQUIRE([AC_PROG_CC])
760 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
761 AC_CACHE_CHECK([whether printf supports the 'B' directive],
762 [gl_cv_func_printf_directive_uppercase_b],
763 [
764 AC_RUN_IFELSE(
765 [AC_LANG_SOURCE([[
766#include <stdio.h>
767#include <string.h>
768static char buf[100];
769int main ()
770{
771 int result = 0;
772 if (sprintf (buf, "%#B %d", 12345, 33, 44, 55) < 0
773 || strcmp (buf, "0B11000000111001 33") != 0)
774 result |= 1;
775 return result;
776}]])],
777 [gl_cv_func_printf_directive_uppercase_b=yes],
778 [gl_cv_func_printf_directive_uppercase_b=no],
779 [
780 case "$host_os" in
781 # Guess yes on glibc >= 2.35 systems.
782 *-gnu* | gnu*)
783 AC_EGREP_CPP([Lucky], [
784 #include <features.h>
785 #ifdef __GNU_LIBRARY__
786 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 35) || (__GLIBC__ > 2)
787 Lucky user
788 #endif
789 #endif
790 ],
791 [gl_cv_func_printf_directive_uppercase_b="guessing yes"],
792 [gl_cv_func_printf_directive_uppercase_b="guessing no"])
793 ;;
794 # Guess no on musl systems.
795 *-musl* | midipix*) gl_cv_func_printf_directive_uppercase_b="guessing no";;
796 # Guess no on Android.
797 linux*-android*) gl_cv_func_printf_directive_uppercase_b="guessing no";;
798 # Guess no on native Windows.
799 mingw* | windows*) gl_cv_func_printf_directive_uppercase_b="guessing no";;
800 # If we don't know, obey --enable-cross-guesses.
801 *) gl_cv_func_printf_directive_uppercase_b="$gl_cross_guess_normal";;
802 esac
803 ])
804 ])
805])
806
606dnl Test whether the *printf family of functions supports the %F format 807dnl Test whether the *printf family of functions supports the %F format
607dnl directive. (ISO C99, POSIX:2001) 808dnl directive. (ISO C99, POSIX:2001)
608dnl Result is gl_cv_func_printf_directive_f. 809dnl Result is gl_cv_func_printf_directive_f.
@@ -643,7 +844,7 @@ changequote(,)dnl
643 # Guess yes on glibc systems. 844 # Guess yes on glibc systems.
644 *-gnu* | gnu*) gl_cv_func_printf_directive_f="guessing yes";; 845 *-gnu* | gnu*) gl_cv_func_printf_directive_f="guessing yes";;
645 # Guess yes on musl systems. 846 # Guess yes on musl systems.
646 *-musl*) gl_cv_func_printf_directive_f="guessing yes";; 847 *-musl* | midipix*) gl_cv_func_printf_directive_f="guessing yes";;
647 # Guess yes on FreeBSD >= 6. 848 # Guess yes on FreeBSD >= 6.
648 freebsd[1-5].*) gl_cv_func_printf_directive_f="guessing no";; 849 freebsd[1-5].*) gl_cv_func_printf_directive_f="guessing no";;
649 freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";; 850 freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";;
@@ -661,7 +862,8 @@ changequote(,)dnl
661 linux*-android*) gl_cv_func_printf_directive_f="guessing no";; 862 linux*-android*) gl_cv_func_printf_directive_f="guessing no";;
662changequote([,])dnl 863changequote([,])dnl
663 # Guess yes on MSVC, no on mingw. 864 # Guess yes on MSVC, no on mingw.
664 mingw*) AC_EGREP_CPP([Known], [ 865 windows*-msvc*) gl_cv_func_printf_directive_f="guessing yes" ;;
866 mingw* | windows*) AC_EGREP_CPP([Known], [
665#ifdef _MSC_VER 867#ifdef _MSC_VER
666 Known 868 Known
667#endif 869#endif
@@ -689,6 +891,7 @@ AC_DEFUN([gl_PRINTF_DIRECTIVE_N],
689 [ 891 [
690 AC_RUN_IFELSE( 892 AC_RUN_IFELSE(
691 [AC_LANG_SOURCE([[ 893 [AC_LANG_SOURCE([[
894#include <signal.h>
692#include <stdio.h> 895#include <stdio.h>
693#include <stdlib.h> 896#include <stdlib.h>
694#include <string.h> 897#include <string.h>
@@ -706,6 +909,12 @@ invalid_parameter_handler (const wchar_t *expression,
706 exit (1); 909 exit (1);
707} 910}
708#endif 911#endif
912static void
913abort_handler (int sig)
914{
915 (void) sig;
916 _exit (1);
917}
709static char fmtstring[10]; 918static char fmtstring[10];
710static char buf[100]; 919static char buf[100];
711int main () 920int main ()
@@ -714,6 +923,7 @@ int main ()
714#ifdef _MSC_VER 923#ifdef _MSC_VER
715 _set_invalid_parameter_handler (invalid_parameter_handler); 924 _set_invalid_parameter_handler (invalid_parameter_handler);
716#endif 925#endif
926 signal (SIGABRT, abort_handler);
717 /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) 927 /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2)
718 support %n in format strings in read-only memory but not in writable 928 support %n in format strings in read-only memory but not in writable
719 memory. */ 929 memory. */
@@ -727,21 +937,21 @@ int main ()
727 [gl_cv_func_printf_directive_n=yes], 937 [gl_cv_func_printf_directive_n=yes],
728 [gl_cv_func_printf_directive_n=no], 938 [gl_cv_func_printf_directive_n=no],
729 [case "$host_os" in 939 [case "$host_os" in
730 # Guess no on glibc when _FORTIFY_SOURCE >= 2. 940 # Guess no on glibc when _FORTIFY_SOURCE >= 2.
731 *-gnu* | gnu*) AC_COMPILE_IFELSE( 941 *-gnu* | gnu*) AC_COMPILE_IFELSE(
732 [AC_LANG_SOURCE( 942 [AC_LANG_SOURCE(
733 [[#if _FORTIFY_SOURCE >= 2 943 [[#if _FORTIFY_SOURCE >= 2
734 error fail 944 error fail
735 #endif 945 #endif
736 ]])], 946 ]])],
737 [gl_cv_func_printf_directive_n="guessing yes"], 947 [gl_cv_func_printf_directive_n="guessing yes"],
738 [gl_cv_func_printf_directive_n="guessing no"]) 948 [gl_cv_func_printf_directive_n="guessing no"])
739 ;; 949 ;;
740 # Guess no on Android. 950 # Guess no on Android.
741 linux*-android*) gl_cv_func_printf_directive_n="guessing no";; 951 linux*-android*) gl_cv_func_printf_directive_n="guessing no";;
742 # Guess no on native Windows. 952 # Guess no on native Windows.
743 mingw*) gl_cv_func_printf_directive_n="guessing no";; 953 mingw* | windows*) gl_cv_func_printf_directive_n="guessing no";;
744 *) gl_cv_func_printf_directive_n="guessing yes";; 954 *) gl_cv_func_printf_directive_n="guessing yes";;
745 esac 955 esac
746 ]) 956 ])
747 ]) 957 ])
@@ -811,18 +1021,64 @@ int main ()
811 [ 1021 [
812changequote(,)dnl 1022changequote(,)dnl
813 case "$host_os" in 1023 case "$host_os" in
814 # Guess yes on OpenBSD >= 6.0. 1024 # Guess yes on OpenBSD >= 6.0.
815 openbsd[1-5].*) gl_cv_func_printf_directive_ls="guessing no";; 1025 openbsd[1-5].*) gl_cv_func_printf_directive_ls="guessing no";;
816 openbsd*) gl_cv_func_printf_directive_ls="guessing yes";; 1026 openbsd*) gl_cv_func_printf_directive_ls="guessing yes";;
817 irix*) gl_cv_func_printf_directive_ls="guessing no";; 1027 irix*) gl_cv_func_printf_directive_ls="guessing no";;
818 solaris*) gl_cv_func_printf_directive_ls="guessing no";; 1028 solaris*) gl_cv_func_printf_directive_ls="guessing no";;
819 cygwin*) gl_cv_func_printf_directive_ls="guessing no";; 1029 cygwin*) gl_cv_func_printf_directive_ls="guessing no";;
820 beos* | haiku*) gl_cv_func_printf_directive_ls="guessing no";; 1030 beos* | haiku*) gl_cv_func_printf_directive_ls="guessing no";;
821 # Guess no on Android. 1031 # Guess no on Android.
822 linux*-android*) gl_cv_func_printf_directive_ls="guessing no";; 1032 linux*-android*) gl_cv_func_printf_directive_ls="guessing no";;
823 # Guess yes on native Windows. 1033 # Guess yes on native Windows.
824 mingw*) gl_cv_func_printf_directive_ls="guessing yes";; 1034 mingw* | windows*) gl_cv_func_printf_directive_ls="guessing yes";;
825 *) gl_cv_func_printf_directive_ls="guessing yes";; 1035 *) gl_cv_func_printf_directive_ls="guessing yes";;
1036 esac
1037changequote([,])dnl
1038 ])
1039 ])
1040])
1041
1042dnl Test whether the *printf family of functions supports the %lc format
1043dnl directive and in particular, when the argument is a null wide character,
1044dnl whether the functions produce a NUL byte, as specified in ISO C 23
1045dnl after the issue GB-141 was fixed.
1046dnl Result is gl_cv_func_printf_directive_lc.
1047
1048AC_DEFUN([gl_PRINTF_DIRECTIVE_LC],
1049[
1050 AC_REQUIRE([AC_PROG_CC])
1051 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
1052 AC_CACHE_CHECK([whether printf supports the 'lc' directive correctly],
1053 [gl_cv_func_printf_directive_lc],
1054 [
1055 AC_RUN_IFELSE(
1056 [AC_LANG_SOURCE([[
1057#include <stdio.h>
1058#include <wchar.h>
1059#include <string.h>
1060int main ()
1061{
1062 int result = 0;
1063 char buf[100];
1064 /* This test fails on musl libc 1.2.4. */
1065 {
1066 buf[0] = '\0';
1067 if (sprintf (buf, "%lc%lc%lc", (wint_t) 'a', (wint_t) 0, (wint_t) 'z') < 0
1068 || memcmp (buf, "a\0z", 4) != 0)
1069 result |= 1;
1070 }
1071 return result;
1072}]])],
1073 [gl_cv_func_printf_directive_lc=yes],
1074 [gl_cv_func_printf_directive_lc=no],
1075 [
1076changequote(,)dnl
1077 case "$host_os" in
1078 # Guess no on musl libc.
1079 *-musl* | midipix*) gl_cv_func_printf_directive_lc="guessing no";;
1080 # Guess yes otherwise.
1081 *) gl_cv_func_printf_directive_lc="guessing yes";;
826 esac 1082 esac
827changequote([,])dnl 1083changequote([,])dnl
828 ]) 1084 ])
@@ -833,7 +1089,7 @@ dnl Test whether the *printf family of functions supports POSIX/XSI format
833dnl strings with positions. (POSIX:2001) 1089dnl strings with positions. (POSIX:2001)
834dnl Result is gl_cv_func_printf_positions. 1090dnl Result is gl_cv_func_printf_positions.
835 1091
836AC_DEFUN([gl_PRINTF_POSITIONS], 1092AC_DEFUN_ONCE([gl_PRINTF_POSITIONS],
837[ 1093[
838 AC_REQUIRE([AC_PROG_CC]) 1094 AC_REQUIRE([AC_PROG_CC])
839 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles 1095 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
@@ -859,13 +1115,17 @@ int main ()
859changequote(,)dnl 1115changequote(,)dnl
860 case "$host_os" in 1116 case "$host_os" in
861 netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*) 1117 netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*)
862 gl_cv_func_printf_positions="guessing no";; 1118 gl_cv_func_printf_positions="guessing no";;
863 beos*) gl_cv_func_printf_positions="guessing no";; 1119 beos*)
864 # Guess yes on Android. 1120 gl_cv_func_printf_positions="guessing no";;
865 linux*-android*) gl_cv_func_printf_positions="guessing yes";; 1121 # Guess yes on Android.
866 # Guess no on native Windows. 1122 linux*-android*)
867 mingw* | pw*) gl_cv_func_printf_positions="guessing no";; 1123 gl_cv_func_printf_positions="guessing yes";;
868 *) gl_cv_func_printf_positions="guessing yes";; 1124 # Guess no on native Windows.
1125 mingw* | windows* | pw*)
1126 gl_cv_func_printf_positions="guessing no";;
1127 *)
1128 gl_cv_func_printf_positions="guessing yes";;
869 esac 1129 esac
870changequote([,])dnl 1130changequote([,])dnl
871 ]) 1131 ])
@@ -900,13 +1160,13 @@ int main ()
900 [ 1160 [
901changequote(,)dnl 1161changequote(,)dnl
902 case "$host_os" in 1162 case "$host_os" in
903 cygwin*) gl_cv_func_printf_flag_grouping="guessing no";; 1163 cygwin*) gl_cv_func_printf_flag_grouping="guessing no";;
904 netbsd*) gl_cv_func_printf_flag_grouping="guessing no";; 1164 netbsd*) gl_cv_func_printf_flag_grouping="guessing no";;
905 # Guess no on Android. 1165 # Guess no on Android.
906 linux*-android*) gl_cv_func_printf_flag_grouping="guessing no";; 1166 linux*-android*) gl_cv_func_printf_flag_grouping="guessing no";;
907 # Guess no on native Windows. 1167 # Guess no on native Windows.
908 mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";; 1168 mingw* | windows* | pw*) gl_cv_func_printf_flag_grouping="guessing no";;
909 *) gl_cv_func_printf_flag_grouping="guessing yes";; 1169 *) gl_cv_func_printf_flag_grouping="guessing yes";;
910 esac 1170 esac
911changequote([,])dnl 1171changequote([,])dnl
912 ]) 1172 ])
@@ -943,16 +1203,16 @@ int main ()
943 [ 1203 [
944changequote(,)dnl 1204changequote(,)dnl
945 case "$host_os" in 1205 case "$host_os" in
946 # Guess yes on HP-UX 11. 1206 # Guess yes on HP-UX 11.
947 hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";; 1207 hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";;
948 # Guess no on HP-UX 10 and older. 1208 # Guess no on HP-UX 10 and older.
949 hpux*) gl_cv_func_printf_flag_leftadjust="guessing no";; 1209 hpux*) gl_cv_func_printf_flag_leftadjust="guessing no";;
950 # Guess yes on Android. 1210 # Guess yes on Android.
951 linux*-android*) gl_cv_func_printf_flag_leftadjust="guessing yes";; 1211 linux*-android*) gl_cv_func_printf_flag_leftadjust="guessing yes";;
952 # Guess yes on native Windows. 1212 # Guess yes on native Windows.
953 mingw*) gl_cv_func_printf_flag_leftadjust="guessing yes";; 1213 mingw* | windows*) gl_cv_func_printf_flag_leftadjust="guessing yes";;
954 # Guess yes otherwise. 1214 # Guess yes otherwise.
955 *) gl_cv_func_printf_flag_leftadjust="guessing yes";; 1215 *) gl_cv_func_printf_flag_leftadjust="guessing yes";;
956 esac 1216 esac
957changequote([,])dnl 1217changequote([,])dnl
958 ]) 1218 ])
@@ -990,18 +1250,62 @@ int main ()
990 [ 1250 [
991changequote(,)dnl 1251changequote(,)dnl
992 case "$host_os" in 1252 case "$host_os" in
993 # Guess yes on glibc systems. 1253 # Guess yes on glibc systems.
994 *-gnu* | gnu*) gl_cv_func_printf_flag_zero="guessing yes";; 1254 *-gnu* | gnu*) gl_cv_func_printf_flag_zero="guessing yes";;
995 # Guess yes on musl systems. 1255 # Guess yes on musl systems.
996 *-musl*) gl_cv_func_printf_flag_zero="guessing yes";; 1256 *-musl* | midipix*) gl_cv_func_printf_flag_zero="guessing yes";;
997 # Guess yes on BeOS. 1257 # Guess yes on BeOS.
998 beos*) gl_cv_func_printf_flag_zero="guessing yes";; 1258 beos*) gl_cv_func_printf_flag_zero="guessing yes";;
999 # Guess no on Android. 1259 # Guess no on Android.
1000 linux*-android*) gl_cv_func_printf_flag_zero="guessing no";; 1260 linux*-android*) gl_cv_func_printf_flag_zero="guessing no";;
1001 # Guess no on native Windows. 1261 # Guess no on native Windows.
1002 mingw*) gl_cv_func_printf_flag_zero="guessing no";; 1262 mingw* | windows*) gl_cv_func_printf_flag_zero="guessing no";;
1003 # If we don't know, obey --enable-cross-guesses. 1263 # If we don't know, obey --enable-cross-guesses.
1004 *) gl_cv_func_printf_flag_zero="$gl_cross_guess_normal";; 1264 *) gl_cv_func_printf_flag_zero="$gl_cross_guess_normal";;
1265 esac
1266changequote([,])dnl
1267 ])
1268 ])
1269])
1270
1271dnl Test whether the *printf family of functions supports the # flag with a
1272dnl zero precision and a zero value in the 'x' and 'X' directives correctly.
1273dnl ISO C and POSIX specify that for the 'd', 'i', 'b', 'o', 'u', 'x', 'X'
1274dnl directives: "The result of converting a zero value with a precision of
1275dnl zero is no characters." But on Mac OS X 10.5, for the 'x', 'X' directives,
1276dnl when a # flag is present, the output is "0" instead of "".
1277dnl Result is gl_cv_func_printf_flag_alt_precision_zero.
1278
1279AC_DEFUN([gl_PRINTF_FLAG_ALT_PRECISION_ZERO],
1280[
1281 AC_REQUIRE([AC_PROG_CC])
1282 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
1283 AC_CACHE_CHECK([whether printf supports the alternative flag with a zero precision],
1284 [gl_cv_func_printf_flag_alt_precision_zero],
1285 [
1286 AC_RUN_IFELSE(
1287 [AC_LANG_SOURCE([[
1288#include <stdio.h>
1289static char buf[10];
1290int main ()
1291{
1292 int result = 0;
1293 if (sprintf (buf, "%#.0x %d", 0, 33, 44) > 0 + 3)
1294 result |= 1;
1295 return result;
1296}]])],
1297 [gl_cv_func_printf_flag_alt_precision_zero=yes],
1298 [gl_cv_func_printf_flag_alt_precision_zero=no],
1299 [
1300changequote(,)dnl
1301 case "$host_os" in
1302 # Guess no only on macOS 10..12 systems.
1303 darwin[0-9] | darwin[0-9].* | \
1304 darwin1[0-9] | darwin1[0-9].* | \
1305 darwin2[0-1] | darwin2[0-1].*)
1306 gl_cv_func_printf_flag_alt_precision_zero="guessing no" ;;
1307 darwin*) gl_cv_func_printf_flag_alt_precision_zero="guessing yes" ;;
1308 *) gl_cv_func_printf_flag_alt_precision_zero="guessing yes" ;;
1005 esac 1309 esac
1006changequote([,])dnl 1310changequote([,])dnl
1007 ]) 1311 ])
@@ -1054,12 +1358,12 @@ int main ()
1054changequote(,)dnl 1358changequote(,)dnl
1055 case "$host_os" in 1359 case "$host_os" in
1056 # Guess no only on Solaris, native Windows, and BeOS systems. 1360 # Guess no only on Solaris, native Windows, and BeOS systems.
1057 solaris*) gl_cv_func_printf_precision="guessing no" ;; 1361 solaris*) gl_cv_func_printf_precision="guessing no" ;;
1058 mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;; 1362 mingw* | windows* | pw*) gl_cv_func_printf_precision="guessing no" ;;
1059 beos*) gl_cv_func_printf_precision="guessing no" ;; 1363 beos*) gl_cv_func_printf_precision="guessing no" ;;
1060 # Guess yes on Android. 1364 # Guess yes on Android.
1061 linux*-android*) gl_cv_func_printf_precision="guessing yes" ;; 1365 linux*-android*) gl_cv_func_printf_precision="guessing yes" ;;
1062 *) gl_cv_func_printf_precision="guessing yes" ;; 1366 *) gl_cv_func_printf_precision="guessing yes" ;;
1063 esac 1367 esac
1064changequote([,])dnl 1368changequote([,])dnl
1065 ]) 1369 ])
@@ -1239,7 +1543,7 @@ changequote(,)dnl
1239 # Guess yes on glibc systems. 1543 # Guess yes on glibc systems.
1240 *-gnu* | gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";; 1544 *-gnu* | gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
1241 # Guess yes on musl systems. 1545 # Guess yes on musl systems.
1242 *-musl*) gl_cv_func_snprintf_truncation_c99="guessing yes";; 1546 *-musl* | midipix*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
1243 # Guess yes on FreeBSD >= 5. 1547 # Guess yes on FreeBSD >= 5.
1244 freebsd[1-4].*) gl_cv_func_snprintf_truncation_c99="guessing no";; 1548 freebsd[1-4].*) gl_cv_func_snprintf_truncation_c99="guessing no";;
1245 freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; 1549 freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
@@ -1275,7 +1579,7 @@ changequote(,)dnl
1275 # Guess yes on Android. 1579 # Guess yes on Android.
1276 linux*-android*) gl_cv_func_snprintf_truncation_c99="guessing yes";; 1580 linux*-android*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
1277 # Guess no on native Windows. 1581 # Guess no on native Windows.
1278 mingw*) gl_cv_func_snprintf_truncation_c99="guessing no";; 1582 mingw* | windows*) gl_cv_func_snprintf_truncation_c99="guessing no";;
1279 # If we don't know, obey --enable-cross-guesses. 1583 # If we don't know, obey --enable-cross-guesses.
1280 *) gl_cv_func_snprintf_truncation_c99="$gl_cross_guess_normal";; 1584 *) gl_cv_func_snprintf_truncation_c99="$gl_cross_guess_normal";;
1281 esac 1585 esac
@@ -1344,7 +1648,7 @@ changequote(,)dnl
1344 # Guess yes on glibc systems. 1648 # Guess yes on glibc systems.
1345 *-gnu* | gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";; 1649 *-gnu* | gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";;
1346 # Guess yes on musl systems. 1650 # Guess yes on musl systems.
1347 *-musl*) gl_cv_func_snprintf_retval_c99="guessing yes";; 1651 *-musl* | midipix*) gl_cv_func_snprintf_retval_c99="guessing yes";;
1348 # Guess yes on FreeBSD >= 5. 1652 # Guess yes on FreeBSD >= 5.
1349 freebsd[1-4].*) gl_cv_func_snprintf_retval_c99="guessing no";; 1653 freebsd[1-4].*) gl_cv_func_snprintf_retval_c99="guessing no";;
1350 freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; 1654 freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
@@ -1372,7 +1676,8 @@ changequote(,)dnl
1372 linux*-android*) gl_cv_func_snprintf_retval_c99="guessing yes";; 1676 linux*-android*) gl_cv_func_snprintf_retval_c99="guessing yes";;
1373changequote([,])dnl 1677changequote([,])dnl
1374 # Guess yes on MSVC, no on mingw. 1678 # Guess yes on MSVC, no on mingw.
1375 mingw*) AC_EGREP_CPP([Known], [ 1679 windows*-msvc*) gl_cv_func_snprintf_retval_c99="guessing yes" ;;
1680 mingw* | windows*) AC_EGREP_CPP([Known], [
1376#ifdef _MSC_VER 1681#ifdef _MSC_VER
1377 Known 1682 Known
1378#endif 1683#endif
@@ -1401,6 +1706,7 @@ AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N],
1401 [ 1706 [
1402 AC_RUN_IFELSE( 1707 AC_RUN_IFELSE(
1403 [AC_LANG_SOURCE([[ 1708 [AC_LANG_SOURCE([[
1709#include <signal.h>
1404#include <stdio.h> 1710#include <stdio.h>
1405#include <string.h> 1711#include <string.h>
1406#if HAVE_SNPRINTF 1712#if HAVE_SNPRINTF
@@ -1417,11 +1723,18 @@ static int my_snprintf (char *buf, int size, const char *format, ...)
1417 return ret; 1723 return ret;
1418} 1724}
1419#endif 1725#endif
1726static void
1727abort_handler (int sig)
1728{
1729 (void) sig;
1730 _exit (1);
1731}
1420static char fmtstring[10]; 1732static char fmtstring[10];
1421static char buf[100]; 1733static char buf[100];
1422int main () 1734int main ()
1423{ 1735{
1424 int count = -1; 1736 int count = -1;
1737 signal (SIGABRT, abort_handler);
1425 /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) 1738 /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2)
1426 support %n in format strings in read-only memory but not in writable 1739 support %n in format strings in read-only memory but not in writable
1427 memory. */ 1740 memory. */
@@ -1447,7 +1760,7 @@ int main ()
1447 ;; 1760 ;;
1448changequote(,)dnl 1761changequote(,)dnl
1449 # Guess yes on musl systems. 1762 # Guess yes on musl systems.
1450 *-musl*) gl_cv_func_snprintf_directive_n="guessing yes";; 1763 *-musl* | midipix*) gl_cv_func_snprintf_directive_n="guessing yes";;
1451 # Guess yes on FreeBSD >= 5. 1764 # Guess yes on FreeBSD >= 5.
1452 freebsd[1-4].*) gl_cv_func_snprintf_directive_n="guessing no";; 1765 freebsd[1-4].*) gl_cv_func_snprintf_directive_n="guessing no";;
1453 freebsd* | kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";; 1766 freebsd* | kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";;
@@ -1476,7 +1789,7 @@ changequote(,)dnl
1476 # Guess no on Android. 1789 # Guess no on Android.
1477 linux*-android*) gl_cv_func_snprintf_directive_n="guessing no";; 1790 linux*-android*) gl_cv_func_snprintf_directive_n="guessing no";;
1478 # Guess no on native Windows. 1791 # Guess no on native Windows.
1479 mingw*) gl_cv_func_snprintf_directive_n="guessing no";; 1792 mingw* | windows*) gl_cv_func_snprintf_directive_n="guessing no";;
1480 # If we don't know, obey --enable-cross-guesses. 1793 # If we don't know, obey --enable-cross-guesses.
1481 *) gl_cv_func_snprintf_directive_n="$gl_cross_guess_normal";; 1794 *) gl_cv_func_snprintf_directive_n="$gl_cross_guess_normal";;
1482changequote([,])dnl 1795changequote([,])dnl
@@ -1524,11 +1837,11 @@ int main()
1524 [gl_cv_func_snprintf_size1=yes], 1837 [gl_cv_func_snprintf_size1=yes],
1525 [gl_cv_func_snprintf_size1=no], 1838 [gl_cv_func_snprintf_size1=no],
1526 [case "$host_os" in 1839 [case "$host_os" in
1527 # Guess yes on Android. 1840 # Guess yes on Android.
1528 linux*-android*) gl_cv_func_snprintf_size1="guessing yes" ;; 1841 linux*-android*) gl_cv_func_snprintf_size1="guessing yes" ;;
1529 # Guess yes on native Windows. 1842 # Guess yes on native Windows.
1530 mingw*) gl_cv_func_snprintf_size1="guessing yes" ;; 1843 mingw* | windows*) gl_cv_func_snprintf_size1="guessing yes" ;;
1531 *) gl_cv_func_snprintf_size1="guessing yes" ;; 1844 *) gl_cv_func_snprintf_size1="guessing yes" ;;
1532 esac 1845 esac
1533 ]) 1846 ])
1534 ]) 1847 ])
@@ -1601,128 +1914,320 @@ int main()
1601 [ 1914 [
1602changequote(,)dnl 1915changequote(,)dnl
1603 case "$host_os" in 1916 case "$host_os" in
1604 # Guess yes on glibc systems. 1917 # Guess yes on glibc systems.
1605 *-gnu* | gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1918 *-gnu* | gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1606 # Guess yes on musl systems. 1919 # Guess yes on musl systems.
1607 *-musl*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1920 *-musl* | midipix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1608 # Guess yes on FreeBSD >= 5. 1921 # Guess yes on FreeBSD >= 5.
1609 freebsd[1-4].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; 1922 freebsd[1-4].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
1610 freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1923 freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1611 midnightbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1924 midnightbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1612 # Guess yes on Mac OS X >= 10.3. 1925 # Guess yes on Mac OS X >= 10.3.
1613 darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; 1926 darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
1614 darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1927 darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1615 # Guess yes on Cygwin. 1928 # Guess yes on Cygwin.
1616 cygwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1929 cygwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1617 # Guess yes on Solaris >= 2.6. 1930 # Guess yes on Solaris >= 2.6.
1618 solaris2.[0-5] | solaris2.[0-5].*) 1931 solaris2.[0-5] | solaris2.[0-5].*)
1619 gl_cv_func_vsnprintf_zerosize_c99="guessing no";; 1932 gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
1620 solaris*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1933 solaris*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1621 # Guess yes on AIX >= 4. 1934 # Guess yes on AIX >= 4.
1622 aix[1-3]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; 1935 aix[1-3]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
1623 aix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1936 aix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1624 # Guess yes on IRIX >= 6.5. 1937 # Guess yes on IRIX >= 6.5.
1625 irix6.5) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1938 irix6.5) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1626 # Guess yes on NetBSD >= 3. 1939 # Guess yes on NetBSD >= 3.
1627 netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) 1940 netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
1628 gl_cv_func_vsnprintf_zerosize_c99="guessing no";; 1941 gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
1629 netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1942 netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1630 # Guess yes on BeOS. 1943 # Guess yes on BeOS.
1631 beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1944 beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1632 # Guess yes on Android. 1945 # Guess yes on Android.
1633 linux*-android*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1946 linux*-android*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1634 # Guess yes on native Windows. 1947 # Guess yes on native Windows.
1635 mingw* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; 1948 mingw* | windows* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
1636 # If we don't know, obey --enable-cross-guesses. 1949 # If we don't know, obey --enable-cross-guesses.
1637 *) gl_cv_func_vsnprintf_zerosize_c99="$gl_cross_guess_normal";; 1950 *) gl_cv_func_vsnprintf_zerosize_c99="$gl_cross_guess_normal";;
1638 esac 1951 esac
1639changequote([,])dnl 1952changequote([,])dnl
1640 ]) 1953 ])
1641 ]) 1954 ])
1642]) 1955])
1643 1956
1957dnl Test whether the swprintf function works correctly when it produces output
1958dnl that contains null wide characters.
1959dnl Result is gl_cv_func_swprintf_works.
1960
1961AC_DEFUN([gl_SWPRINTF_WORKS],
1962[
1963 AC_REQUIRE([AC_PROG_CC])
1964 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
1965 AC_CHECK_FUNCS_ONCE([swprintf])
1966 AC_CACHE_CHECK([whether swprintf works],
1967 [gl_cv_func_swprintf_works],
1968 [
1969 AC_RUN_IFELSE(
1970 [AC_LANG_SOURCE([[
1971#ifndef __USE_MINGW_ANSI_STDIO
1972# define __USE_MINGW_ANSI_STDIO 1
1973#endif
1974#include <stdio.h>
1975#include <wchar.h>
1976int main()
1977{
1978 int result = 0;
1979 { /* This test fails on musl libc 1.2.3, FreeBSD, NetBSD, OpenBSD, macOS, AIX. */
1980 wchar_t buf[5] = { 0xBEEF, 0xBEEF, 0xBEEF, 0xBEEF, 0xBEEF };
1981 int ret = swprintf (buf, 4, L"%cz", '\0');
1982 /* Expected result:
1983 ret = 2, buf[0] = 0x0, buf[1] = 0x7a, buf[2] = 0x0, buf[3] = 0xbeef
1984 musl libc 1.2.3:
1985 ret = 2, buf[0] = 0x0, buf[1] = 0x0, buf[2] = 0x0, buf[3] = 0x0
1986 Reported at <https://www.openwall.com/lists/musl/2023/03/22/9>.
1987 FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2, macOS 12.5, AIX 7.2:
1988 ret = 2, buf[0] = 0x0, buf[1] = 0xbeef, buf[2] = 0xbeef, buf[3] = 0xbeef
1989 */
1990 if (ret < 0 || buf[1] != 'z')
1991 result |= 1;
1992 }
1993 { /* This test fails on mingw. */
1994 wchar_t buf[2];
1995 int ret = swprintf (buf, 2, L"%lc", (wint_t)0);
1996 /* Expected: ret = 1
1997 mingw: ret = 0
1998 */
1999 if (ret != 1)
2000 result |= 2;
2001 }
2002 return result;
2003}]])],
2004 [gl_cv_func_swprintf_works=yes],
2005 [gl_cv_func_swprintf_works=no],
2006 [case "$host_os" in
2007 # Guess yes on glibc systems.
2008 *-gnu* | gnu*) gl_cv_func_swprintf_works="guessing yes";;
2009 # Guess no on musl systems.
2010 *-musl* | midipix*) gl_cv_func_swprintf_works="guessing no";;
2011 # Guess no on FreeBSD, NetBSD, OpenBSD, macOS, AIX.
2012 freebsd* | midnightbsd* | netbsd* | openbsd* | darwin* | aix*)
2013 gl_cv_func_swprintf_works="guessing no";;
2014 # Guess no on native Windows.
2015 mingw* | windows* | pw*) gl_cv_func_swprintf_works="guessing no";;
2016 # If we don't know, obey --enable-cross-guesses.
2017 *) gl_cv_func_swprintf_works="$gl_cross_guess_normal";;
2018 esac
2019 ])
2020 ])
2021])
2022
2023dnl Test whether the *wprintf family of functions supports the 'a' and 'A'
2024dnl conversion specifier for hexadecimal output of 'long double' numbers.
2025dnl (ISO C99, POSIX:2001)
2026dnl Result is gl_cv_func_swprintf_directive_la.
2027
2028AC_DEFUN([gl_SWPRINTF_DIRECTIVE_LA],
2029[
2030 AC_REQUIRE([AC_PROG_CC])
2031 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
2032 AC_CACHE_CHECK([whether swprintf supports the 'La' and 'LA' directives],
2033 [gl_cv_func_swprintf_directive_la],
2034 [
2035 AC_RUN_IFELSE(
2036 [AC_LANG_SOURCE([[
2037#include <stdio.h>
2038#include <wchar.h>
2039static wchar_t buf[100];
2040int main ()
2041{
2042 int result = 0;
2043 /* This catches a glibc 2.15, Haiku 2022, NetBSD 10.0 bug. */
2044 if (swprintf (buf, sizeof (buf) / sizeof (wchar_t),
2045 L"%La %d", 3.1416015625L, 33, 44, 55) < 0
2046 || (wcscmp (buf, L"0x1.922p+1 33") != 0
2047 && wcscmp (buf, L"0x3.244p+0 33") != 0
2048 && wcscmp (buf, L"0x6.488p-1 33") != 0
2049 && wcscmp (buf, L"0xc.91p-2 33") != 0))
2050 result |= 1;
2051 return result;
2052}]])],
2053 [gl_cv_func_swprintf_directive_la=yes],
2054 [gl_cv_func_swprintf_directive_la=no],
2055 [case "$host_os" in
2056 # Guess yes on glibc >= 2.17 systems.
2057 *-gnu* | gnu*)
2058 AC_EGREP_CPP([Unlucky], [
2059 #include <features.h>
2060 #ifdef __GNU_LIBRARY__
2061 #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 16) || (__GLIBC__ > 2)) && !defined __UCLIBC__
2062 Unlucky
2063 #endif
2064 #endif
2065 ],
2066 [gl_cv_func_swprintf_directive_la="guessing yes"],
2067 [gl_cv_func_swprintf_directive_la="guessing no"])
2068 ;;
2069 # Guess yes on musl systems.
2070 *-musl* | midipix*) gl_cv_func_swprintf_directive_la="guessing yes";;
2071 # Guess yes on Android.
2072 linux*-android*) gl_cv_func_swprintf_directive_la="guessing yes";;
2073 # Guess no on NetBSD.
2074 netbsd*) gl_cv_func_swprintf_directive_la="guessing no";;
2075 # Guess no on native Windows.
2076 mingw* | windows*) gl_cv_func_swprintf_directive_la="guessing no";;
2077 # If we don't know, obey --enable-cross-guesses.
2078 *) gl_cv_func_swprintf_directive_la="$gl_cross_guess_normal";;
2079 esac
2080 ])
2081 ])
2082])
2083
2084dnl Test whether the *wprintf family of functions supports the 'lc' conversion
2085dnl specifier for all wide characters.
2086dnl (ISO C11, POSIX:2001)
2087dnl Result is gl_cv_func_swprintf_directive_lc.
2088
2089AC_DEFUN([gl_SWPRINTF_DIRECTIVE_LC],
2090[
2091 AC_REQUIRE([AC_PROG_CC])
2092 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
2093 AC_CACHE_CHECK([whether swprintf supports the 'lc' directive],
2094 [gl_cv_func_swprintf_directive_lc],
2095 [
2096 AC_RUN_IFELSE(
2097 [AC_LANG_SOURCE([[
2098#include <stdio.h>
2099#include <wchar.h>
2100static wchar_t buf[100];
2101static wint_t L_invalid = (wchar_t) 0x76543210;
2102int main ()
2103{
2104 int result = 0;
2105 /* This catches a musl libc 1.2.4, Android bug.
2106 Reported at <https://www.openwall.com/lists/musl/2023/06/12/3>. */
2107 if (swprintf (buf, sizeof (buf) / sizeof (wchar_t),
2108 L"%lc %d", L_invalid, 33, 44, 55) < 0)
2109 result |= 1;
2110 return result;
2111}]])],
2112 [gl_cv_func_swprintf_directive_lc=yes],
2113 [gl_cv_func_swprintf_directive_lc=no],
2114 [case "$host_os" in
2115 # Guess yes on glibc systems.
2116 *-gnu* | gnu*) gl_cv_func_swprintf_directive_lc="guessing yes";;
2117 # Guess no on musl systems.
2118 *-musl* | midipix*) gl_cv_func_swprintf_directive_lc="guessing no";;
2119 # Guess no on Android.
2120 linux*-android*) gl_cv_func_swprintf_directive_lc="guessing no";;
2121 # Guess yes on native Windows.
2122 mingw* | windows*) gl_cv_func_swprintf_directive_lc="guessing yes";;
2123 # If we don't know, obey --enable-cross-guesses.
2124 *) gl_cv_func_swprintf_directive_lc="$gl_cross_guess_normal";;
2125 esac
2126 ])
2127 ])
2128])
2129
1644dnl The results of these tests on various platforms are: 2130dnl The results of these tests on various platforms are:
1645dnl 2131dnl
1646dnl 1 = gl_PRINTF_SIZES_C99 2132dnl 1 = gl_PRINTF_SIZES_C99
1647dnl 2 = gl_PRINTF_LONG_DOUBLE 2133dnl 2 = gl_PRINTF_SIZES_C23
1648dnl 3 = gl_PRINTF_INFINITE 2134dnl 3 = gl_PRINTF_LONG_DOUBLE
1649dnl 4 = gl_PRINTF_INFINITE_LONG_DOUBLE 2135dnl 4 = gl_PRINTF_INFINITE
1650dnl 5 = gl_PRINTF_DIRECTIVE_A 2136dnl 5 = gl_PRINTF_INFINITE_LONG_DOUBLE
1651dnl 6 = gl_PRINTF_DIRECTIVE_F 2137dnl 6 = gl_PRINTF_DIRECTIVE_A
1652dnl 7 = gl_PRINTF_DIRECTIVE_N 2138dnl 7 = gl_PRINTF_DIRECTIVE_B
1653dnl 8 = gl_PRINTF_DIRECTIVE_LS 2139dnl 8 = gl_PRINTF_DIRECTIVE_UPPERCASE_B
1654dnl 9 = gl_PRINTF_POSITIONS 2140dnl 9 = gl_PRINTF_DIRECTIVE_F
1655dnl 10 = gl_PRINTF_FLAG_GROUPING 2141dnl 10 = gl_PRINTF_DIRECTIVE_N
1656dnl 11 = gl_PRINTF_FLAG_LEFTADJUST 2142dnl 11 = gl_PRINTF_DIRECTIVE_LS
1657dnl 12 = gl_PRINTF_FLAG_ZERO 2143dnl 12 = gl_PRINTF_DIRECTIVE_LC
1658dnl 13 = gl_PRINTF_PRECISION 2144dnl 13 = gl_PRINTF_POSITIONS
1659dnl 14 = gl_PRINTF_ENOMEM 2145dnl 14 = gl_PRINTF_FLAG_GROUPING
1660dnl 15 = gl_SNPRINTF_PRESENCE 2146dnl 15 = gl_PRINTF_FLAG_LEFTADJUST
1661dnl 16 = gl_SNPRINTF_TRUNCATION_C99 2147dnl 16 = gl_PRINTF_FLAG_ZERO
1662dnl 17 = gl_SNPRINTF_RETVAL_C99 2148dnl 17 = gl_PRINTF_FLAG_ALT_PRECISION_ZERO
1663dnl 18 = gl_SNPRINTF_DIRECTIVE_N 2149dnl 18 = gl_PRINTF_PRECISION
1664dnl 19 = gl_SNPRINTF_SIZE1 2150dnl 19 = gl_PRINTF_ENOMEM
1665dnl 20 = gl_VSNPRINTF_ZEROSIZE_C99 2151dnl 20 = gl_SNPRINTF_PRESENCE
2152dnl 21 = gl_SNPRINTF_TRUNCATION_C99
2153dnl 22 = gl_SNPRINTF_RETVAL_C99
2154dnl 23 = gl_SNPRINTF_DIRECTIVE_N
2155dnl 24 = gl_SNPRINTF_SIZE1
2156dnl 25 = gl_VSNPRINTF_ZEROSIZE_C99
2157dnl 26 = gl_SWPRINTF_WORKS
2158dnl 27 = gl_SWPRINTF_DIRECTIVE_LA
2159dnl 28 = gl_SWPRINTF_DIRECTIVE_LC
1666dnl 2160dnl
1667dnl 1 = checking whether printf supports size specifiers as in C99... 2161dnl 1 = checking whether printf supports size specifiers as in C99...
1668dnl 2 = checking whether printf supports 'long double' arguments... 2162dnl 2 = checking whether printf supports size specifiers as in C23...
1669dnl 3 = checking whether printf supports infinite 'double' arguments... 2163dnl 3 = checking whether printf supports 'long double' arguments...
1670dnl 4 = checking whether printf supports infinite 'long double' arguments... 2164dnl 4 = checking whether printf supports infinite 'double' arguments...
1671dnl 5 = checking whether printf supports the 'a' and 'A' directives... 2165dnl 5 = checking whether printf supports infinite 'long double' arguments...
1672dnl 6 = checking whether printf supports the 'F' directive... 2166dnl 6 = checking whether printf supports the 'a' and 'A' directives...
1673dnl 7 = checking whether printf supports the 'n' directive... 2167dnl 7 = checking whether printf supports the 'b' directive...
1674dnl 8 = checking whether printf supports the 'ls' directive... 2168dnl 8 = checking whether printf supports the 'B' directive...
1675dnl 9 = checking whether printf supports POSIX/XSI format strings with positions... 2169dnl 9 = checking whether printf supports the 'F' directive...
1676dnl 10 = checking whether printf supports the grouping flag... 2170dnl 10 = checking whether printf supports the 'n' directive...
1677dnl 11 = checking whether printf supports the left-adjust flag correctly... 2171dnl 11 = checking whether printf supports the 'ls' directive...
1678dnl 12 = checking whether printf supports the zero flag correctly... 2172dnl 12 = checking whether printf supports the 'lc' directive correctly...
1679dnl 13 = checking whether printf supports large precisions... 2173dnl 13 = checking whether printf supports POSIX/XSI format strings with positions...
1680dnl 14 = checking whether printf survives out-of-memory conditions... 2174dnl 14 = checking whether printf supports the grouping flag...
1681dnl 15 = checking for snprintf... 2175dnl 15 = checking whether printf supports the left-adjust flag correctly...
1682dnl 16 = checking whether snprintf truncates the result as in C99... 2176dnl 16 = checking whether printf supports the zero flag correctly...
1683dnl 17 = checking whether snprintf returns a byte count as in C99... 2177dnl 17 = checking whether printf supports the alternative flag with a zero precision...
1684dnl 18 = checking whether snprintf fully supports the 'n' directive... 2178dnl 18 = checking whether printf supports large precisions...
1685dnl 19 = checking whether snprintf respects a size of 1... 2179dnl 19 = checking whether printf survives out-of-memory conditions...
1686dnl 20 = checking whether vsnprintf respects a zero size as in C99... 2180dnl 20 = checking for snprintf...
2181dnl 21 = checking whether snprintf truncates the result as in C99...
2182dnl 22 = checking whether snprintf returns a byte count as in C99...
2183dnl 23 = checking whether snprintf fully supports the 'n' directive...
2184dnl 24 = checking whether snprintf respects a size of 1...
2185dnl 25 = checking whether vsnprintf respects a zero size as in C99...
2186dnl 26 = checking whether swprintf works...
2187dnl 27 = checking whether swprintf supports the 'La' and 'LA' directives...
2188dnl 28 = checking whether swprintf supports the 'lc' directive...
1687dnl 2189dnl
1688dnl . = yes, # = no. 2190dnl . = yes, # = no.
1689dnl 2191dnl
1690dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2192dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
1691dnl glibc 2.5 . . . . . . . . . . . . . . . . . . . . 2193dnl musl libc 1.2.3 . # . . . . # # . . . # . . . . ? . . . . . . . . # . #
1692dnl glibc 2.3.6 . . . . # . . . . . . . . . . . . . . . 2194dnl glibc 2.35 . # . . . . . . . . . . . . . . . . . . . . . . . . . .
1693dnl FreeBSD 13.0 . . . . # . . . . . . . . # . . . . . . 2195dnl glibc 2.5 . # . . . . # # . . . . . . . . . . . . . . . . . . # .
1694dnl FreeBSD 5.4, 6.1 . . . . # . . . . . . # . # . . . . . . 2196dnl glibc 2.3.6 . # . . . # # # . . . . . . . . . . . . . . . . . . # .
1695dnl Mac OS X 10.13.5 . . . # # . # . . . . . . . . . . # . . 2197dnl FreeBSD 14.0 . . . . . # . . . . . . . . . . . . # . . . . . . # . #
1696dnl Mac OS X 10.5.8 . . . # # . . . . . . # . . . . . . . . 2198dnl FreeBSD 13.0 . # . . . # # # . . . . . . . . . . # . . . . . . # . #
1697dnl Mac OS X 10.3.9 . . . . # . . . . . . # . # . . . . . . 2199dnl FreeBSD 5.4, 6.1 . # . . . # # # . . . . . . . # ? . # . . . . . . # ? ?
1698dnl OpenBSD 6.0, 6.7 . . . . # . . . . . . . . # . . . . . . 2200dnl Mac OS X 10.13.5 . # . . # # # # . # . . . . . . . . . . . . # . . # ? ?
1699dnl OpenBSD 3.9, 4.0 . . # # # # . # . # . # . # . . . . . . 2201dnl Mac OS X 10.5.8 . # . . # # # # . . . . . . . # # . . . . . . . . # ? ?
1700dnl Cygwin 1.7.0 (2009) . . . # . . . ? . . . . . ? . . . . . . 2202dnl Mac OS X 10.3.9 . # . . . # # # . . . . . . . # # . # . . . . . . # ? ?
1701dnl Cygwin 1.5.25 (2008) . . . # # . . # . . . . . # . . . . . . 2203dnl OpenBSD 6.0, 6.7 . # . . . # # # . . . . . . . . . . # . . . . . . # . #
1702dnl Cygwin 1.5.19 (2006) # . . # # # . # . # . # # # . . . . . . 2204dnl OpenBSD 3.9, 4.0 . # . # # # # # # . # . . # . # ? . # . . . . . . # ? ?
1703dnl Solaris 11.4 . . # # # . . # . . . # . . . . . . . . 2205dnl Cygwin 1.7.0 (2009) . # . . # . # # . . ? ? . . . . ? . ? . . . . . . ? ? ?
1704dnl Solaris 11.3 . . . . # . . # . . . . . . . . . . . . 2206dnl Cygwin 1.5.25 (2008) . # . . # # # # . . # ? . . . . ? . # . . . . . . ? ? ?
1705dnl Solaris 11.0 . . # # # . . # . . . # . . . . . . . . 2207dnl Cygwin 1.5.19 (2006) # # . . # # # # # . # ? . # . # ? # # . . . . . . ? ? ?
1706dnl Solaris 10 . . # # # . . # . . . # # . . . . . . . 2208dnl Solaris 11.4 . # . # # # # # . . # . . . . # . . . . . . . . . . # .
1707dnl Solaris 2.6 ... 9 # . # # # # . # . . . # # . . . # . . . 2209dnl Solaris 11.3 . # . . . # # # . . # . . . . . . . . . . . . . . . # .
1708dnl Solaris 2.5.1 # . # # # # . # . . . # . . # # # # # # 2210dnl Solaris 11.0 . # . # # # # # . . # . . . . # . . . . . . . . . ? ? ?
1709dnl AIX 7.1 . . # # # . . . . . . # # . . . . . . . 2211dnl Solaris 10 . # . # # # # # . . # . . . . # . # . . . . . . . . # .
1710dnl AIX 5.2 . . # # # . . . . . . # . . . . . . . . 2212dnl Solaris 2.6 ... 9 # # . # # # # # # . # . . . . # ? # . . . # . . . ? ? ?
1711dnl AIX 4.3.2, 5.1 # . # # # # . . . . . # . . . . # . . . 2213dnl Solaris 2.5.1 # # . # # # # # # . # . . . . # ? . . # # # # # # ? ? ?
1712dnl HP-UX 11.31 . . . . # . . . . . . # . . . . # # . . 2214dnl AIX 7.1 . # . # # # # # . . . . . . . # . # . . . . . . . # . .
1713dnl HP-UX 11.{00,11,23} # . . . # # . . . . . # . . . . # # . # 2215dnl AIX 5.2 . # . # # # # # . . . . . . . # ? . . . . . . . . # ? ?
1714dnl HP-UX 10.20 # . # . # # . ? . . # # . . . . # # ? # 2216dnl AIX 4.3.2, 5.1 # # . # # # # # # . . . . . . # ? . . . . # . . . # ? ?
1715dnl IRIX 6.5 # . # # # # . # . . . # . . . . # . . . 2217dnl HP-UX 11.31 . # . . . # # # . . . ? . . . # ? . . . . # # . . ? ? ?
1716dnl OSF/1 5.1 # . # # # # . . . . . # . . . . # . . # 2218dnl HP-UX 11.{00,11,23} # # . . . # # # # . . ? . . . # ? . . . . # # . # ? ? ?
1717dnl OSF/1 4.0d # . # # # # . . . . . # . . # # # # # # 2219dnl HP-UX 10.20 # # . # . # # # # . ? ? . . # # ? . . . . # # ? # ? ? ?
1718dnl NetBSD 9.0 . . . . # . . . . . . . . . . . . . . . 2220dnl IRIX 6.5 # # . # # # # # # . # . . . . # ? . . . . # . . . # ? ?
1719dnl NetBSD 5.0 . . . # # . . . . . . # . # . . . . . . 2221dnl OSF/1 5.1 # # . # # # # # # . . ? . . . # ? . . . . # . . # ? ? ?
1720dnl NetBSD 4.0 . ? ? ? ? ? . ? . ? ? ? ? ? . . . ? ? ? 2222dnl OSF/1 4.0d # # . # # # # # # . . ? . . . # ? . . # # # # # # ? ? ?
1721dnl NetBSD 3.0 . . . . # # . ? # # ? # . # . . . . . . 2223dnl NetBSD 9.0 . # . . . # # # . . . . . . . . . . . . . . . . . # . #
1722dnl Haiku . . . # # # . # . . . . . ? . . ? . . . 2224dnl NetBSD 5.0 . # . . # # # # . . . . . . . # ? . # . . . . . . # ? ?
1723dnl BeOS # # . # # # . ? # . ? . # ? . . ? . . . 2225dnl NetBSD 4.0 . # ? ? ? ? # # ? . ? . . ? ? ? ? ? ? . . . ? ? ? # ? ?
1724dnl Android 4.3 . . # # # # # # . # . # . # . . . # . . 2226dnl NetBSD 3.0 . # . . . # # # # . ? . # # ? # ? . # . . . . . . # ? ?
1725dnl old mingw / msvcrt # # # # # # . . # # . # # ? . # # # . . 2227dnl Haiku . # . . # # # # # . # ? . . . . ? . ? . . ? . . . . # .
1726dnl MSVC 9 # # # # # # # . # # . # # ? # # # # . . 2228dnl BeOS # # # . # # # # # . ? ? # . ? . ? # ? . . ? . . . ? ? ?
1727dnl mingw 2009-2011 . # . # . . . . # # . . . ? . . . . . . 2229dnl Android 4.3 . # . # # # # # # # # ? . # . # ? . # . . . # . . ? ? ?
1728dnl mingw-w64 2011 # # # # # # . . # # . # # ? . # # # . . 2230dnl old mingw / msvcrt # # # # # # # # # . . ? # # . # ? # ? . # # # . . # ? ?
2231dnl MSVC 9 # # # # # # # # # # . ? # # . # ? # ? # # # # . . # ? ?
2232dnl mingw 2009-2011 . # # . # . # # . . . ? # # . . ? . ? . . . . . . # ? ?
2233dnl mingw-w64 2011 # # # # # # # # # . . ? # # . # ? # ? . # # # . . # ? ?