2 dnl Copyright (C) 2007-2010 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 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
10 AC_REQUIRE([AC_C_INLINE])
11 gl_CHECK_NEXT_HEADERS([stdio.h])
12 dnl No need to create extra modules for these functions. Everyone who uses
13 dnl <stdio.h> likely needs them.
24 dnl This ifdef is just an optimization, to avoid performing a configure
25 dnl check whose result is not used. It does not make the test of
26 dnl GNULIB_STDIO_H_SIGPIPE or GNULIB_SIGPIPE redundant.
27 m4_ifdef([gl_SIGNAL_SIGPIPE], [
29 if test $gl_cv_header_signal_h_SIGPIPE != yes; then
30 REPLACE_STDIO_WRITE_FUNCS=1
31 AC_LIBOBJ([stdio-write])
35 dnl Check for declarations of anything we want to poison if the
36 dnl corresponding gnulib module is not in use, and which is not
37 dnl guaranteed by C89.
38 gl_WARN_ON_USE_PREPARE([[#include <stdio.h>
39 ]], [dprintf fpurge fseeko ftello getdelim getline popen renameat
40 snprintf vdprintf vsnprintf])
43 AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
45 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
46 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
47 GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
50 AC_DEFUN([gl_STDIO_H_DEFAULTS],
52 GNULIB_DPRINTF=0; AC_SUBST([GNULIB_DPRINTF])
53 GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE])
54 GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH])
55 GNULIB_FOPEN=0; AC_SUBST([GNULIB_FOPEN])
56 GNULIB_FPRINTF=0; AC_SUBST([GNULIB_FPRINTF])
57 GNULIB_FPRINTF_POSIX=0; AC_SUBST([GNULIB_FPRINTF_POSIX])
58 GNULIB_FPURGE=0; AC_SUBST([GNULIB_FPURGE])
59 GNULIB_FPUTC=0; AC_SUBST([GNULIB_FPUTC])
60 GNULIB_FPUTS=0; AC_SUBST([GNULIB_FPUTS])
61 GNULIB_FREOPEN=0; AC_SUBST([GNULIB_FREOPEN])
62 GNULIB_FSEEK=0; AC_SUBST([GNULIB_FSEEK])
63 GNULIB_FSEEKO=0; AC_SUBST([GNULIB_FSEEKO])
64 GNULIB_FTELL=0; AC_SUBST([GNULIB_FTELL])
65 GNULIB_FTELLO=0; AC_SUBST([GNULIB_FTELLO])
66 GNULIB_FWRITE=0; AC_SUBST([GNULIB_FWRITE])
67 GNULIB_GETDELIM=0; AC_SUBST([GNULIB_GETDELIM])
68 GNULIB_GETLINE=0; AC_SUBST([GNULIB_GETLINE])
69 GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF])
70 GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
71 GNULIB_PERROR=0; AC_SUBST([GNULIB_PERROR])
72 GNULIB_POPEN=0; AC_SUBST([GNULIB_POPEN])
73 GNULIB_PRINTF=0; AC_SUBST([GNULIB_PRINTF])
74 GNULIB_PRINTF_POSIX=0; AC_SUBST([GNULIB_PRINTF_POSIX])
75 GNULIB_PUTC=0; AC_SUBST([GNULIB_PUTC])
76 GNULIB_PUTCHAR=0; AC_SUBST([GNULIB_PUTCHAR])
77 GNULIB_PUTS=0; AC_SUBST([GNULIB_PUTS])
78 GNULIB_REMOVE=0; AC_SUBST([GNULIB_REMOVE])
79 GNULIB_RENAME=0; AC_SUBST([GNULIB_RENAME])
80 GNULIB_RENAMEAT=0; AC_SUBST([GNULIB_RENAMEAT])
81 GNULIB_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF])
82 GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX])
83 GNULIB_STDIO_H_SIGPIPE=0; AC_SUBST([GNULIB_STDIO_H_SIGPIPE])
84 GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF])
85 GNULIB_VDPRINTF=0; AC_SUBST([GNULIB_VDPRINTF])
86 GNULIB_VFPRINTF=0; AC_SUBST([GNULIB_VFPRINTF])
87 GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX])
88 GNULIB_VPRINTF=0; AC_SUBST([GNULIB_VPRINTF])
89 GNULIB_VPRINTF_POSIX=0; AC_SUBST([GNULIB_VPRINTF_POSIX])
90 GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF])
91 GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX])
92 dnl Assume proper GNU behavior unless another module says otherwise.
93 HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE])
94 HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM])
95 HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE])
96 HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
97 HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF])
98 HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF])
99 HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF])
100 HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT])
101 HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF])
102 HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF])
103 REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF])
104 REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE])
105 REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH])
106 REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN])
107 REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF])
108 REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE])
109 REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN])
110 REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK])
111 REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO])
112 REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL])
113 REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO])
114 REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE])
115 REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF])
116 REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR])
117 REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN])
118 REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF])
119 REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE])
120 REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME])
121 REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT])
122 REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF])
123 REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF])
124 REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS])
125 REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF])
126 REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF])
127 REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF])
128 REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF])
129 REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF])
130 REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF])
133 dnl Code shared by fseeko and ftello. Determine if large files are supported,
134 dnl but stdin does not start as a large file by default.
135 AC_DEFUN([gl_STDIN_LARGE_OFFSET],
137 AC_CACHE_CHECK([whether stdin defaults to large file offsets],
138 [gl_cv_var_stdin_large_offset],
139 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]],
140 [[#if defined __SL64 && defined __SCLE /* cygwin */
141 /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making
142 fseeko/ftello needlessly fail. This bug was fixed in 1.5.25, and
143 it is easier to do a version check than building a runtime test. */
144 # include <cygwin/version.h>
145 # if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25)
149 [gl_cv_var_stdin_large_offset=yes],
150 [gl_cv_var_stdin_large_offset=no])])