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>
42 AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
44 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
45 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
46 GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
49 AC_DEFUN([gl_STDIO_H_DEFAULTS],
51 GNULIB_DPRINTF=0; AC_SUBST([GNULIB_DPRINTF])
52 GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE])
53 GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH])
54 GNULIB_FOPEN=0; AC_SUBST([GNULIB_FOPEN])
55 GNULIB_FPRINTF=0; AC_SUBST([GNULIB_FPRINTF])
56 GNULIB_FPRINTF_POSIX=0; AC_SUBST([GNULIB_FPRINTF_POSIX])
57 GNULIB_FPURGE=0; AC_SUBST([GNULIB_FPURGE])
58 GNULIB_FPUTC=0; AC_SUBST([GNULIB_FPUTC])
59 GNULIB_FPUTS=0; AC_SUBST([GNULIB_FPUTS])
60 GNULIB_FREOPEN=0; AC_SUBST([GNULIB_FREOPEN])
61 GNULIB_FSEEK=0; AC_SUBST([GNULIB_FSEEK])
62 GNULIB_FSEEKO=0; AC_SUBST([GNULIB_FSEEKO])
63 GNULIB_FTELL=0; AC_SUBST([GNULIB_FTELL])
64 GNULIB_FTELLO=0; AC_SUBST([GNULIB_FTELLO])
65 GNULIB_FWRITE=0; AC_SUBST([GNULIB_FWRITE])
66 GNULIB_GETDELIM=0; AC_SUBST([GNULIB_GETDELIM])
67 GNULIB_GETLINE=0; AC_SUBST([GNULIB_GETLINE])
68 GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF])
69 GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
70 GNULIB_PERROR=0; AC_SUBST([GNULIB_PERROR])
71 GNULIB_POPEN=0; AC_SUBST([GNULIB_POPEN])
72 GNULIB_PRINTF=0; AC_SUBST([GNULIB_PRINTF])
73 GNULIB_PRINTF_POSIX=0; AC_SUBST([GNULIB_PRINTF_POSIX])
74 GNULIB_PUTC=0; AC_SUBST([GNULIB_PUTC])
75 GNULIB_PUTCHAR=0; AC_SUBST([GNULIB_PUTCHAR])
76 GNULIB_PUTS=0; AC_SUBST([GNULIB_PUTS])
77 GNULIB_REMOVE=0; AC_SUBST([GNULIB_REMOVE])
78 GNULIB_RENAME=0; AC_SUBST([GNULIB_RENAME])
79 GNULIB_RENAMEAT=0; AC_SUBST([GNULIB_RENAMEAT])
80 GNULIB_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF])
81 GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX])
82 GNULIB_STDIO_H_SIGPIPE=0; AC_SUBST([GNULIB_STDIO_H_SIGPIPE])
83 GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF])
84 GNULIB_VDPRINTF=0; AC_SUBST([GNULIB_VDPRINTF])
85 GNULIB_VFPRINTF=0; AC_SUBST([GNULIB_VFPRINTF])
86 GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX])
87 GNULIB_VPRINTF=0; AC_SUBST([GNULIB_VPRINTF])
88 GNULIB_VPRINTF_POSIX=0; AC_SUBST([GNULIB_VPRINTF_POSIX])
89 GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF])
90 GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX])
91 dnl Assume proper GNU behavior unless another module says otherwise.
92 HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE])
93 HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM])
94 HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE])
95 HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
96 HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF])
97 HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF])
98 HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF])
99 HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT])
100 HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF])
101 HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF])
102 REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF])
103 REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE])
104 REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH])
105 REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN])
106 REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF])
107 REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE])
108 REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN])
109 REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK])
110 REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO])
111 REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL])
112 REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO])
113 REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE])
114 REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF])
115 REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR])
116 REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN])
117 REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF])
118 REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE])
119 REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME])
120 REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT])
121 REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF])
122 REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF])
123 REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS])
124 REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF])
125 REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF])
126 REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF])
127 REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF])
128 REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF])
129 REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF])
132 dnl Code shared by fseeko and ftello. Determine if large files are supported,
133 dnl but stdin does not start as a large file by default.
134 AC_DEFUN([gl_STDIN_LARGE_OFFSET],
136 AC_CACHE_CHECK([whether stdin defaults to large file offsets],
137 [gl_cv_var_stdin_large_offset],
138 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]],
139 [[#if defined __SL64 && defined __SCLE /* cygwin */
140 /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making
141 fseeko/ftello needlessly fail. This bug was fixed in 1.5.25, and
142 it is easier to do a version check than building a runtime test. */
143 # include <cygwin/version.h>
144 # if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25)
148 [gl_cv_var_stdin_large_offset=yes],
149 [gl_cv_var_stdin_large_offset=no])])