2 dnl Copyright (C) 2007-2020 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.
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
15 AC_DEFINE([__USE_MINGW_ANSI_STDIO])
16 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
17 gl_NEXT_HEADERS([stdio.h])
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
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 __CYGWIN__) && \
32 (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
33 extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1];
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__"])
43 dnl No need to create extra modules for these functions. Everyone who uses
44 dnl <stdio.h> likely needs them.
46 gl_MODULE_INDICATOR([fscanf])
48 gl_MODULE_INDICATOR([scanf])
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], [
61 if test $gl_cv_have_nonblocking != yes; then
62 REPLACE_STDIO_READ_FUNCS=1
63 AC_LIBOBJ([stdio-read])
67 dnl No need to create extra modules for these functions. Everyone who uses
68 dnl <stdio.h> likely needs them.
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], [
86 if test $gl_cv_header_signal_h_SIGPIPE != yes; then
87 REPLACE_STDIO_WRITE_FUNCS=1
88 AC_LIBOBJ([stdio-write])
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], [
98 if test $gl_cv_have_nonblocking != yes; then
99 REPLACE_STDIO_WRITE_FUNCS=1
100 AC_LIBOBJ([stdio-write])
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])
111 AC_REQUIRE([AC_C_RESTRICT])
113 AC_CHECK_DECLS_ONCE([fcloseall])
114 if test $ac_cv_have_decl_fcloseall = no; then
115 HAVE_DECL_FCLOSEALL=0
119 AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
121 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
122 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
123 gl_MODULE_INDICATOR_SET_VARIABLE([$1])
124 dnl Define it also as a C macro, for the benefit of the unit tests.
125 gl_MODULE_INDICATOR_FOR_TESTS([$1])
128 AC_DEFUN([gl_STDIO_H_DEFAULTS],
130 GNULIB_DPRINTF=0; AC_SUBST([GNULIB_DPRINTF])
131 GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE])
132 GNULIB_FDOPEN=0; AC_SUBST([GNULIB_FDOPEN])
133 GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH])
134 GNULIB_FGETC=0; AC_SUBST([GNULIB_FGETC])
135 GNULIB_FGETS=0; AC_SUBST([GNULIB_FGETS])
136 GNULIB_FOPEN=0; AC_SUBST([GNULIB_FOPEN])
137 GNULIB_FPRINTF=0; AC_SUBST([GNULIB_FPRINTF])
138 GNULIB_FPRINTF_POSIX=0; AC_SUBST([GNULIB_FPRINTF_POSIX])
139 GNULIB_FPURGE=0; AC_SUBST([GNULIB_FPURGE])
140 GNULIB_FPUTC=0; AC_SUBST([GNULIB_FPUTC])
141 GNULIB_FPUTS=0; AC_SUBST([GNULIB_FPUTS])
142 GNULIB_FREAD=0; AC_SUBST([GNULIB_FREAD])
143 GNULIB_FREOPEN=0; AC_SUBST([GNULIB_FREOPEN])
144 GNULIB_FSCANF=0; AC_SUBST([GNULIB_FSCANF])
145 GNULIB_FSEEK=0; AC_SUBST([GNULIB_FSEEK])
146 GNULIB_FSEEKO=0; AC_SUBST([GNULIB_FSEEKO])
147 GNULIB_FTELL=0; AC_SUBST([GNULIB_FTELL])
148 GNULIB_FTELLO=0; AC_SUBST([GNULIB_FTELLO])
149 GNULIB_FWRITE=0; AC_SUBST([GNULIB_FWRITE])
150 GNULIB_GETC=0; AC_SUBST([GNULIB_GETC])
151 GNULIB_GETCHAR=0; AC_SUBST([GNULIB_GETCHAR])
152 GNULIB_GETDELIM=0; AC_SUBST([GNULIB_GETDELIM])
153 GNULIB_GETLINE=0; AC_SUBST([GNULIB_GETLINE])
154 GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF])
155 GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
156 GNULIB_PCLOSE=0; AC_SUBST([GNULIB_PCLOSE])
157 GNULIB_PERROR=0; AC_SUBST([GNULIB_PERROR])
158 GNULIB_POPEN=0; AC_SUBST([GNULIB_POPEN])
159 GNULIB_PRINTF=0; AC_SUBST([GNULIB_PRINTF])
160 GNULIB_PRINTF_POSIX=0; AC_SUBST([GNULIB_PRINTF_POSIX])
161 GNULIB_PUTC=0; AC_SUBST([GNULIB_PUTC])
162 GNULIB_PUTCHAR=0; AC_SUBST([GNULIB_PUTCHAR])
163 GNULIB_PUTS=0; AC_SUBST([GNULIB_PUTS])
164 GNULIB_REMOVE=0; AC_SUBST([GNULIB_REMOVE])
165 GNULIB_RENAME=0; AC_SUBST([GNULIB_RENAME])
166 GNULIB_RENAMEAT=0; AC_SUBST([GNULIB_RENAMEAT])
167 GNULIB_SCANF=0; AC_SUBST([GNULIB_SCANF])
168 GNULIB_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF])
169 GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX])
170 GNULIB_STDIO_H_NONBLOCKING=0; AC_SUBST([GNULIB_STDIO_H_NONBLOCKING])
171 GNULIB_STDIO_H_SIGPIPE=0; AC_SUBST([GNULIB_STDIO_H_SIGPIPE])
172 GNULIB_TMPFILE=0; AC_SUBST([GNULIB_TMPFILE])
173 GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF])
174 GNULIB_VFSCANF=0; AC_SUBST([GNULIB_VFSCANF])
175 GNULIB_VSCANF=0; AC_SUBST([GNULIB_VSCANF])
176 GNULIB_VDPRINTF=0; AC_SUBST([GNULIB_VDPRINTF])
177 GNULIB_VFPRINTF=0; AC_SUBST([GNULIB_VFPRINTF])
178 GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX])
179 GNULIB_VPRINTF=0; AC_SUBST([GNULIB_VPRINTF])
180 GNULIB_VPRINTF_POSIX=0; AC_SUBST([GNULIB_VPRINTF_POSIX])
181 GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF])
182 GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX])
183 dnl Assume proper GNU behavior unless another module says otherwise.
184 HAVE_DECL_FCLOSEALL=1; AC_SUBST([HAVE_DECL_FCLOSEALL])
185 HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE])
186 HAVE_DECL_FSEEKO=1; AC_SUBST([HAVE_DECL_FSEEKO])
187 HAVE_DECL_FTELLO=1; AC_SUBST([HAVE_DECL_FTELLO])
188 HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM])
189 HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE])
190 HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
191 HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF])
192 HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF])
193 HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF])
194 HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO])
195 HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO])
196 HAVE_PCLOSE=1; AC_SUBST([HAVE_PCLOSE])
197 HAVE_POPEN=1; AC_SUBST([HAVE_POPEN])
198 HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT])
199 HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF])
200 HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF])
201 REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF])
202 REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE])
203 REPLACE_FDOPEN=0; AC_SUBST([REPLACE_FDOPEN])
204 REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH])
205 REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN])
206 REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF])
207 REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE])
208 REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN])
209 REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK])
210 REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO])
211 REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL])
212 REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO])
213 REPLACE_GETDELIM=0; AC_SUBST([REPLACE_GETDELIM])
214 REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE])
215 REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF])
216 REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR])
217 REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN])
218 REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF])
219 REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE])
220 REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME])
221 REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT])
222 REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF])
223 REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF])
224 REPLACE_STDIO_READ_FUNCS=0; AC_SUBST([REPLACE_STDIO_READ_FUNCS])
225 REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS])
226 REPLACE_TMPFILE=0; AC_SUBST([REPLACE_TMPFILE])
227 REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF])
228 REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF])
229 REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF])
230 REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF])
231 REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF])
232 REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF])