| 1 | # stdio_h.m4 serial 48 |
| 2 | dnl Copyright (C) 2007-2016 Free Software Foundation, Inc. |
| 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 | AC_DEFUN([gl_STDIO_H], |
| 8 | [ |
| 9 | AH_VERBATIM([MINGW_ANSI_STDIO], |
| 10 | [/* Use GNU style printf and scanf. */ |
| 11 | #ifndef __USE_MINGW_ANSI_STDIO |
| 12 | # undef __USE_MINGW_ANSI_STDIO |
| 13 | #endif |
| 14 | ]) |
| 15 | AC_DEFINE([__USE_MINGW_ANSI_STDIO]) |
| 16 | AC_REQUIRE([gl_STDIO_H_DEFAULTS]) |
| 17 | gl_NEXT_HEADERS([stdio.h]) |
| 18 | |
| 19 | dnl Determine whether __USE_MINGW_ANSI_STDIO makes printf and |
| 20 | dnl inttypes.h behave like gnu instead of system; we must give our |
| 21 | dnl printf wrapper the right attribute to match. |
| 22 | AC_CACHE_CHECK([which flavor of printf attribute matches inttypes macros], |
| 23 | [gl_cv_func_printf_attribute_flavor], |
| 24 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
| 25 | #define __STDC_FORMAT_MACROS 1 |
| 26 | #include <stdio.h> |
| 27 | #include <inttypes.h> |
| 28 | /* For non-mingw systems, compilation will trivially succeed. |
| 29 | For mingw, compilation will succeed for older mingw (system |
| 30 | printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */ |
| 31 | #if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) && \ |
| 32 | (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
| 33 | extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1]; |
| 34 | #endif |
| 35 | ]])], [gl_cv_func_printf_attribute_flavor=system], |
| 36 | [gl_cv_func_printf_attribute_flavor=gnu])]) |
| 37 | if test "$gl_cv_func_printf_attribute_flavor" = gnu; then |
| 38 | AC_DEFINE([GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU], [1], |
| 39 | [Define to 1 if printf and friends should be labeled with |
| 40 | attribute "__gnu_printf__" instead of "__printf__"]) |
| 41 | fi |
| 42 | |
| 43 | dnl No need to create extra modules for these functions. Everyone who uses |
| 44 | dnl <stdio.h> likely needs them. |
| 45 | GNULIB_FSCANF=1 |
| 46 | gl_MODULE_INDICATOR([fscanf]) |
| 47 | GNULIB_SCANF=1 |
| 48 | gl_MODULE_INDICATOR([scanf]) |
| 49 | GNULIB_FGETC=1 |
| 50 | GNULIB_GETC=1 |
| 51 | GNULIB_GETCHAR=1 |
| 52 | GNULIB_FGETS=1 |
| 53 | GNULIB_FREAD=1 |
| 54 | dnl This ifdef is necessary to avoid an error "missing file lib/stdio-read.c" |
| 55 | dnl "expected source file, required through AC_LIBSOURCES, not found". It is |
| 56 | dnl also an optimization, to avoid performing a configure check whose result |
| 57 | dnl is not used. But it does not make the test of GNULIB_STDIO_H_NONBLOCKING |
| 58 | dnl or GNULIB_NONBLOCKING redundant. |
| 59 | m4_ifdef([gl_NONBLOCKING_IO], [ |
| 60 | gl_NONBLOCKING_IO |
| 61 | if test $gl_cv_have_nonblocking != yes; then |
| 62 | REPLACE_STDIO_READ_FUNCS=1 |
| 63 | AC_LIBOBJ([stdio-read]) |
| 64 | fi |
| 65 | ]) |
| 66 | |
| 67 | dnl No need to create extra modules for these functions. Everyone who uses |
| 68 | dnl <stdio.h> likely needs them. |
| 69 | GNULIB_FPRINTF=1 |
| 70 | GNULIB_PRINTF=1 |
| 71 | GNULIB_VFPRINTF=1 |
| 72 | GNULIB_VPRINTF=1 |
| 73 | GNULIB_FPUTC=1 |
| 74 | GNULIB_PUTC=1 |
| 75 | GNULIB_PUTCHAR=1 |
| 76 | GNULIB_FPUTS=1 |
| 77 | GNULIB_PUTS=1 |
| 78 | GNULIB_FWRITE=1 |
| 79 | dnl This ifdef is necessary to avoid an error "missing file lib/stdio-write.c" |
| 80 | dnl "expected source file, required through AC_LIBSOURCES, not found". It is |
| 81 | dnl also an optimization, to avoid performing a configure check whose result |
| 82 | dnl is not used. But it does not make the test of GNULIB_STDIO_H_SIGPIPE or |
| 83 | dnl GNULIB_SIGPIPE redundant. |
| 84 | m4_ifdef([gl_SIGNAL_SIGPIPE], [ |
| 85 | gl_SIGNAL_SIGPIPE |
| 86 | if test $gl_cv_header_signal_h_SIGPIPE != yes; then |
| 87 | REPLACE_STDIO_WRITE_FUNCS=1 |
| 88 | AC_LIBOBJ([stdio-write]) |
| 89 | fi |
| 90 | ]) |
| 91 | dnl This ifdef is necessary to avoid an error "missing file lib/stdio-write.c" |
| 92 | dnl "expected source file, required through AC_LIBSOURCES, not found". It is |
| 93 | dnl also an optimization, to avoid performing a configure check whose result |
| 94 | dnl is not used. But it does not make the test of GNULIB_STDIO_H_NONBLOCKING |
| 95 | dnl or GNULIB_NONBLOCKING redundant. |
| 96 | m4_ifdef([gl_NONBLOCKING_IO], [ |
| 97 | gl_NONBLOCKING_IO |
| 98 | if test $gl_cv_have_nonblocking != yes; then |
| 99 | REPLACE_STDIO_WRITE_FUNCS=1 |
| 100 | AC_LIBOBJ([stdio-write]) |
| 101 | fi |
| 102 | ]) |
| 103 | |
| 104 | dnl Check for declarations of anything we want to poison if the |
| 105 | dnl corresponding gnulib module is not in use, and which is not |
| 106 | dnl guaranteed by both C89 and C11. |
| 107 | gl_WARN_ON_USE_PREPARE([[#include <stdio.h> |
| 108 | ]], [dprintf fpurge fseeko ftello getdelim getline gets pclose popen |
| 109 | renameat snprintf tmpfile vdprintf vsnprintf]) |
| 110 | ]) |
| 111 | |
| 112 | AC_DEFUN([gl_STDIO_MODULE_INDICATOR], |
| 113 | [ |
| 114 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only. |
| 115 | AC_REQUIRE([gl_STDIO_H_DEFAULTS]) |
| 116 | gl_MODULE_INDICATOR_SET_VARIABLE([$1]) |
| 117 | dnl Define it also as a C macro, for the benefit of the unit tests. |
| 118 | gl_MODULE_INDICATOR_FOR_TESTS([$1]) |
| 119 | ]) |
| 120 | |
| 121 | AC_DEFUN([gl_STDIO_H_DEFAULTS], |
| 122 | [ |
| 123 | GNULIB_DPRINTF=0; AC_SUBST([GNULIB_DPRINTF]) |
| 124 | GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE]) |
| 125 | GNULIB_FDOPEN=0; AC_SUBST([GNULIB_FDOPEN]) |
| 126 | GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH]) |
| 127 | GNULIB_FGETC=0; AC_SUBST([GNULIB_FGETC]) |
| 128 | GNULIB_FGETS=0; AC_SUBST([GNULIB_FGETS]) |
| 129 | GNULIB_FOPEN=0; AC_SUBST([GNULIB_FOPEN]) |
| 130 | GNULIB_FPRINTF=0; AC_SUBST([GNULIB_FPRINTF]) |
| 131 | GNULIB_FPRINTF_POSIX=0; AC_SUBST([GNULIB_FPRINTF_POSIX]) |
| 132 | GNULIB_FPURGE=0; AC_SUBST([GNULIB_FPURGE]) |
| 133 | GNULIB_FPUTC=0; AC_SUBST([GNULIB_FPUTC]) |
| 134 | GNULIB_FPUTS=0; AC_SUBST([GNULIB_FPUTS]) |
| 135 | GNULIB_FREAD=0; AC_SUBST([GNULIB_FREAD]) |
| 136 | GNULIB_FREOPEN=0; AC_SUBST([GNULIB_FREOPEN]) |
| 137 | GNULIB_FSCANF=0; AC_SUBST([GNULIB_FSCANF]) |
| 138 | GNULIB_FSEEK=0; AC_SUBST([GNULIB_FSEEK]) |
| 139 | GNULIB_FSEEKO=0; AC_SUBST([GNULIB_FSEEKO]) |
| 140 | GNULIB_FTELL=0; AC_SUBST([GNULIB_FTELL]) |
| 141 | GNULIB_FTELLO=0; AC_SUBST([GNULIB_FTELLO]) |
| 142 | GNULIB_FWRITE=0; AC_SUBST([GNULIB_FWRITE]) |
| 143 | GNULIB_GETC=0; AC_SUBST([GNULIB_GETC]) |
| 144 | GNULIB_GETCHAR=0; AC_SUBST([GNULIB_GETCHAR]) |
| 145 | GNULIB_GETDELIM=0; AC_SUBST([GNULIB_GETDELIM]) |
| 146 | GNULIB_GETLINE=0; AC_SUBST([GNULIB_GETLINE]) |
| 147 | GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF]) |
| 148 | GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX]) |
| 149 | GNULIB_PCLOSE=0; AC_SUBST([GNULIB_PCLOSE]) |
| 150 | GNULIB_PERROR=0; AC_SUBST([GNULIB_PERROR]) |
| 151 | GNULIB_POPEN=0; AC_SUBST([GNULIB_POPEN]) |
| 152 | GNULIB_PRINTF=0; AC_SUBST([GNULIB_PRINTF]) |
| 153 | GNULIB_PRINTF_POSIX=0; AC_SUBST([GNULIB_PRINTF_POSIX]) |
| 154 | GNULIB_PUTC=0; AC_SUBST([GNULIB_PUTC]) |
| 155 | GNULIB_PUTCHAR=0; AC_SUBST([GNULIB_PUTCHAR]) |
| 156 | GNULIB_PUTS=0; AC_SUBST([GNULIB_PUTS]) |
| 157 | GNULIB_REMOVE=0; AC_SUBST([GNULIB_REMOVE]) |
| 158 | GNULIB_RENAME=0; AC_SUBST([GNULIB_RENAME]) |
| 159 | GNULIB_RENAMEAT=0; AC_SUBST([GNULIB_RENAMEAT]) |
| 160 | GNULIB_SCANF=0; AC_SUBST([GNULIB_SCANF]) |
| 161 | GNULIB_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF]) |
| 162 | GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX]) |
| 163 | GNULIB_STDIO_H_NONBLOCKING=0; AC_SUBST([GNULIB_STDIO_H_NONBLOCKING]) |
| 164 | GNULIB_STDIO_H_SIGPIPE=0; AC_SUBST([GNULIB_STDIO_H_SIGPIPE]) |
| 165 | GNULIB_TMPFILE=0; AC_SUBST([GNULIB_TMPFILE]) |
| 166 | GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF]) |
| 167 | GNULIB_VFSCANF=0; AC_SUBST([GNULIB_VFSCANF]) |
| 168 | GNULIB_VSCANF=0; AC_SUBST([GNULIB_VSCANF]) |
| 169 | GNULIB_VDPRINTF=0; AC_SUBST([GNULIB_VDPRINTF]) |
| 170 | GNULIB_VFPRINTF=0; AC_SUBST([GNULIB_VFPRINTF]) |
| 171 | GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX]) |
| 172 | GNULIB_VPRINTF=0; AC_SUBST([GNULIB_VPRINTF]) |
| 173 | GNULIB_VPRINTF_POSIX=0; AC_SUBST([GNULIB_VPRINTF_POSIX]) |
| 174 | GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF]) |
| 175 | GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX]) |
| 176 | dnl Assume proper GNU behavior unless another module says otherwise. |
| 177 | HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE]) |
| 178 | HAVE_DECL_FSEEKO=1; AC_SUBST([HAVE_DECL_FSEEKO]) |
| 179 | HAVE_DECL_FTELLO=1; AC_SUBST([HAVE_DECL_FTELLO]) |
| 180 | HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM]) |
| 181 | HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE]) |
| 182 | HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF]) |
| 183 | HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF]) |
| 184 | HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF]) |
| 185 | HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF]) |
| 186 | HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO]) |
| 187 | HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO]) |
| 188 | HAVE_PCLOSE=1; AC_SUBST([HAVE_PCLOSE]) |
| 189 | HAVE_POPEN=1; AC_SUBST([HAVE_POPEN]) |
| 190 | HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT]) |
| 191 | HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF]) |
| 192 | HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF]) |
| 193 | REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF]) |
| 194 | REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE]) |
| 195 | REPLACE_FDOPEN=0; AC_SUBST([REPLACE_FDOPEN]) |
| 196 | REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH]) |
| 197 | REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN]) |
| 198 | REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF]) |
| 199 | REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE]) |
| 200 | REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN]) |
| 201 | REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK]) |
| 202 | REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO]) |
| 203 | REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL]) |
| 204 | REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO]) |
| 205 | REPLACE_GETDELIM=0; AC_SUBST([REPLACE_GETDELIM]) |
| 206 | REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE]) |
| 207 | REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF]) |
| 208 | REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR]) |
| 209 | REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN]) |
| 210 | REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF]) |
| 211 | REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE]) |
| 212 | REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME]) |
| 213 | REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT]) |
| 214 | REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF]) |
| 215 | REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF]) |
| 216 | REPLACE_STDIO_READ_FUNCS=0; AC_SUBST([REPLACE_STDIO_READ_FUNCS]) |
| 217 | REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS]) |
| 218 | REPLACE_TMPFILE=0; AC_SUBST([REPLACE_TMPFILE]) |
| 219 | REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF]) |
| 220 | REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF]) |
| 221 | REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF]) |
| 222 | REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF]) |
| 223 | REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF]) |
| 224 | REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF]) |
| 225 | ]) |