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1# stdio_h.m4 serial 16
2dnl Copyright (C) 2007-2009 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_STDIO_H],
8[
9  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
10  gl_CHECK_NEXT_HEADERS([stdio.h])
11  dnl No need to create extra modules for these functions. Everyone who uses
12  dnl <stdio.h> likely needs them.
13  GNULIB_FPRINTF=1
14  GNULIB_PRINTF=1
15  GNULIB_VFPRINTF=1
16  GNULIB_VPRINTF=1
17  GNULIB_FPUTC=1
18  GNULIB_PUTC=1
19  GNULIB_PUTCHAR=1
20  GNULIB_FPUTS=1
21  GNULIB_PUTS=1
22  GNULIB_FWRITE=1
23  dnl This ifdef is just an optimization, to avoid performing a configure
24  dnl check whose result is not used. It does not make the test of
25  dnl GNULIB_STDIO_H_SIGPIPE or GNULIB_SIGPIPE redundant.
26  m4_ifdef([gl_SIGNAL_SIGPIPE], [
27    gl_SIGNAL_SIGPIPE
28    if test $gl_cv_header_signal_h_SIGPIPE != yes; then
29      REPLACE_STDIO_WRITE_FUNCS=1
30      AC_LIBOBJ([stdio-write])
31    fi
32  ])
33])
34
35AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
36[
37  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
38  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
39  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
40])
41
42AC_DEFUN([gl_STDIO_H_DEFAULTS],
43[
44  GNULIB_FPRINTF=0;              AC_SUBST([GNULIB_FPRINTF])
45  GNULIB_FPRINTF_POSIX=0;        AC_SUBST([GNULIB_FPRINTF_POSIX])
46  GNULIB_PRINTF=0;               AC_SUBST([GNULIB_PRINTF])
47  GNULIB_PRINTF_POSIX=0;         AC_SUBST([GNULIB_PRINTF_POSIX])
48  GNULIB_SNPRINTF=0;             AC_SUBST([GNULIB_SNPRINTF])
49  GNULIB_SPRINTF_POSIX=0;        AC_SUBST([GNULIB_SPRINTF_POSIX])
50  GNULIB_VFPRINTF=0;             AC_SUBST([GNULIB_VFPRINTF])
51  GNULIB_VFPRINTF_POSIX=0;       AC_SUBST([GNULIB_VFPRINTF_POSIX])
52  GNULIB_VPRINTF=0;              AC_SUBST([GNULIB_VPRINTF])
53  GNULIB_VPRINTF_POSIX=0;        AC_SUBST([GNULIB_VPRINTF_POSIX])
54  GNULIB_VSNPRINTF=0;            AC_SUBST([GNULIB_VSNPRINTF])
55  GNULIB_VSPRINTF_POSIX=0;       AC_SUBST([GNULIB_VSPRINTF_POSIX])
56  GNULIB_DPRINTF=0;              AC_SUBST([GNULIB_DPRINTF])
57  GNULIB_VDPRINTF=0;             AC_SUBST([GNULIB_VDPRINTF])
58  GNULIB_VASPRINTF=0;            AC_SUBST([GNULIB_VASPRINTF])
59  GNULIB_OBSTACK_PRINTF=0;       AC_SUBST([GNULIB_OBSTACK_PRINTF])
60  GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
61  GNULIB_FOPEN=0;                AC_SUBST([GNULIB_FOPEN])
62  GNULIB_FREOPEN=0;              AC_SUBST([GNULIB_FREOPEN])
63  GNULIB_FSEEK=0;                AC_SUBST([GNULIB_FSEEK])
64  GNULIB_FSEEKO=0;               AC_SUBST([GNULIB_FSEEKO])
65  GNULIB_FTELL=0;                AC_SUBST([GNULIB_FTELL])
66  GNULIB_FTELLO=0;               AC_SUBST([GNULIB_FTELLO])
67  GNULIB_FFLUSH=0;               AC_SUBST([GNULIB_FFLUSH])
68  GNULIB_FPURGE=0;               AC_SUBST([GNULIB_FPURGE])
69  GNULIB_FCLOSE=0;               AC_SUBST([GNULIB_FCLOSE])
70  GNULIB_FPUTC=0;                AC_SUBST([GNULIB_FPUTC])
71  GNULIB_PUTC=0;                 AC_SUBST([GNULIB_PUTC])
72  GNULIB_PUTCHAR=0;              AC_SUBST([GNULIB_PUTCHAR])
73  GNULIB_FPUTS=0;                AC_SUBST([GNULIB_FPUTS])
74  GNULIB_PUTS=0;                 AC_SUBST([GNULIB_PUTS])
75  GNULIB_FWRITE=0;               AC_SUBST([GNULIB_FWRITE])
76  GNULIB_GETDELIM=0;             AC_SUBST([GNULIB_GETDELIM])
77  GNULIB_GETLINE=0;              AC_SUBST([GNULIB_GETLINE])
78  GNULIB_PERROR=0;               AC_SUBST([GNULIB_PERROR])
79  GNULIB_STDIO_H_SIGPIPE=0;      AC_SUBST([GNULIB_STDIO_H_SIGPIPE])
80  dnl Assume proper GNU behavior unless another module says otherwise.
81  REPLACE_STDIO_WRITE_FUNCS=0;   AC_SUBST([REPLACE_STDIO_WRITE_FUNCS])
82  REPLACE_FPRINTF=0;             AC_SUBST([REPLACE_FPRINTF])
83  REPLACE_VFPRINTF=0;            AC_SUBST([REPLACE_VFPRINTF])
84  REPLACE_PRINTF=0;              AC_SUBST([REPLACE_PRINTF])
85  REPLACE_VPRINTF=0;             AC_SUBST([REPLACE_VPRINTF])
86  REPLACE_SNPRINTF=0;            AC_SUBST([REPLACE_SNPRINTF])
87  HAVE_DECL_SNPRINTF=1;          AC_SUBST([HAVE_DECL_SNPRINTF])
88  REPLACE_VSNPRINTF=0;           AC_SUBST([REPLACE_VSNPRINTF])
89  HAVE_DECL_VSNPRINTF=1;         AC_SUBST([HAVE_DECL_VSNPRINTF])
90  REPLACE_SPRINTF=0;             AC_SUBST([REPLACE_SPRINTF])
91  REPLACE_VSPRINTF=0;            AC_SUBST([REPLACE_VSPRINTF])
92  HAVE_DPRINTF=1;                AC_SUBST([HAVE_DPRINTF])
93  REPLACE_DPRINTF=0;             AC_SUBST([REPLACE_DPRINTF])
94  HAVE_VDPRINTF=1;               AC_SUBST([HAVE_VDPRINTF])
95  REPLACE_VDPRINTF=0;            AC_SUBST([REPLACE_VDPRINTF])
96  HAVE_VASPRINTF=1;              AC_SUBST([HAVE_VASPRINTF])
97  REPLACE_VASPRINTF=0;           AC_SUBST([REPLACE_VASPRINTF])
98  HAVE_DECL_OBSTACK_PRINTF=1;    AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
99  REPLACE_OBSTACK_PRINTF=0;      AC_SUBST([REPLACE_OBSTACK_PRINTF])
100  REPLACE_FOPEN=0;               AC_SUBST([REPLACE_FOPEN])
101  REPLACE_FREOPEN=0;             AC_SUBST([REPLACE_FREOPEN])
102  HAVE_FSEEKO=1;                 AC_SUBST([HAVE_FSEEKO])
103  REPLACE_FSEEKO=0;              AC_SUBST([REPLACE_FSEEKO])
104  REPLACE_FSEEK=0;               AC_SUBST([REPLACE_FSEEK])
105  HAVE_FTELLO=1;                 AC_SUBST([HAVE_FTELLO])
106  REPLACE_FTELLO=0;              AC_SUBST([REPLACE_FTELLO])
107  REPLACE_FTELL=0;               AC_SUBST([REPLACE_FTELL])
108  REPLACE_FFLUSH=0;              AC_SUBST([REPLACE_FFLUSH])
109  REPLACE_FPURGE=0;              AC_SUBST([REPLACE_FPURGE])
110  HAVE_DECL_FPURGE=1;            AC_SUBST([HAVE_DECL_FPURGE])
111  REPLACE_FCLOSE=0;              AC_SUBST([REPLACE_FCLOSE])
112  HAVE_DECL_GETDELIM=1;          AC_SUBST([HAVE_DECL_GETDELIM])
113  HAVE_DECL_GETLINE=1;           AC_SUBST([HAVE_DECL_GETLINE])
114  REPLACE_GETLINE=0;             AC_SUBST([REPLACE_GETLINE])
115  REPLACE_PERROR=0;              AC_SUBST([REPLACE_PERROR])
116])
117
118dnl Code shared by fseeko and ftello.  Determine if large files are supported,
119dnl but stdin does not start as a large file by default.
120AC_DEFUN([gl_STDIN_LARGE_OFFSET],
121  [
122    AC_CACHE_CHECK([whether stdin defaults to large file offsets],
123      [gl_cv_var_stdin_large_offset],
124      [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]],
125[[#if defined __SL64 && defined __SCLE /* cygwin */
126  /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making
127     fseeko/ftello needlessly fail.  This bug was fixed in 1.5.25, and
128     it is easier to do a version check than building a runtime test.  */
129# include <cygwin/version.h>
130# if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25)
131  choke me
132# endif
133#endif]])],
134	[gl_cv_var_stdin_large_offset=yes],
135	[gl_cv_var_stdin_large_offset=no])])
136])
137