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c0c3707f | 1 | # stdio_h.m4 serial 49 |
5df4cba6 | 2 | dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. |
6a29c58e YQ |
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 | [ | |
49e4877c PA |
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]) | |
6a29c58e YQ |
16 | AC_REQUIRE([gl_STDIO_H_DEFAULTS]) |
17 | gl_NEXT_HEADERS([stdio.h]) | |
18 | ||
4a626d0a PA |
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"). */ | |
c0c3707f | 31 | #if (defined _WIN32 && ! defined __CYGWIN__) && \ |
4a626d0a PA |
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 | ||
6a29c58e YQ |
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 | ]) |