summaryrefslogtreecommitdiffstats
path: root/gl/m4/stdio_h.m4
blob: 846b65d302cbe5197c136ab96f019c88f6392d00 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
# stdio_h.m4 serial 15
dnl Copyright (C) 2007-2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_STDIO_H],
[
  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
  gl_CHECK_NEXT_HEADERS([stdio.h])
  dnl No need to create extra modules for these functions. Everyone who uses
  dnl <stdio.h> likely needs them.
  GNULIB_FPRINTF=1
  GNULIB_PRINTF=1
  GNULIB_VFPRINTF=1
  GNULIB_VPRINTF=1
  GNULIB_FPUTC=1
  GNULIB_PUTC=1
  GNULIB_PUTCHAR=1
  GNULIB_FPUTS=1
  GNULIB_PUTS=1
  GNULIB_FWRITE=1
  dnl This ifdef is just an optimization, to avoid performing a configure
  dnl check whose result is not used. It does not make the test of
  dnl GNULIB_STDIO_H_SIGPIPE or GNULIB_SIGPIPE redundant.
  m4_ifdef([gl_SIGNAL_SIGPIPE], [
    gl_SIGNAL_SIGPIPE
    if test $gl_cv_header_signal_h_SIGPIPE != yes; then
      REPLACE_STDIO_WRITE_FUNCS=1
      AC_LIBOBJ([stdio-write])
    fi
  ])
])

AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
[
  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
])

AC_DEFUN([gl_STDIO_H_DEFAULTS],
[
  GNULIB_FPRINTF=0;              AC_SUBST([GNULIB_FPRINTF])
  GNULIB_FPRINTF_POSIX=0;        AC_SUBST([GNULIB_FPRINTF_POSIX])
  GNULIB_PRINTF=0;               AC_SUBST([GNULIB_PRINTF])
  GNULIB_PRINTF_POSIX=0;         AC_SUBST([GNULIB_PRINTF_POSIX])
  GNULIB_SNPRINTF=0;             AC_SUBST([GNULIB_SNPRINTF])
  GNULIB_SPRINTF_POSIX=0;        AC_SUBST([GNULIB_SPRINTF_POSIX])
  GNULIB_VFPRINTF=0;             AC_SUBST([GNULIB_VFPRINTF])
  GNULIB_VFPRINTF_POSIX=0;       AC_SUBST([GNULIB_VFPRINTF_POSIX])
  GNULIB_VPRINTF=0;              AC_SUBST([GNULIB_VPRINTF])
  GNULIB_VPRINTF_POSIX=0;        AC_SUBST([GNULIB_VPRINTF_POSIX])
  GNULIB_VSNPRINTF=0;            AC_SUBST([GNULIB_VSNPRINTF])
  GNULIB_VSPRINTF_POSIX=0;       AC_SUBST([GNULIB_VSPRINTF_POSIX])
  GNULIB_DPRINTF=0;              AC_SUBST([GNULIB_DPRINTF])
  GNULIB_VDPRINTF=0;             AC_SUBST([GNULIB_VDPRINTF])
  GNULIB_VASPRINTF=0;            AC_SUBST([GNULIB_VASPRINTF])
  GNULIB_OBSTACK_PRINTF=0;       AC_SUBST([GNULIB_OBSTACK_PRINTF])
  GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
  GNULIB_FOPEN=0;                AC_SUBST([GNULIB_FOPEN])
  GNULIB_FREOPEN=0;              AC_SUBST([GNULIB_FREOPEN])
  GNULIB_FSEEK=0;                AC_SUBST([GNULIB_FSEEK])
  GNULIB_FSEEKO=0;               AC_SUBST([GNULIB_FSEEKO])
  GNULIB_FTELL=0;                AC_SUBST([GNULIB_FTELL])
  GNULIB_FTELLO=0;               AC_SUBST([GNULIB_FTELLO])
  GNULIB_FFLUSH=0;               AC_SUBST([GNULIB_FFLUSH])
  GNULIB_FCLOSE=0;               AC_SUBST([GNULIB_FCLOSE])
  GNULIB_FPUTC=0;                AC_SUBST([GNULIB_FPUTC])
  GNULIB_PUTC=0;                 AC_SUBST([GNULIB_PUTC])
  GNULIB_PUTCHAR=0;              AC_SUBST([GNULIB_PUTCHAR])
  GNULIB_FPUTS=0;                AC_SUBST([GNULIB_FPUTS])
  GNULIB_PUTS=0;                 AC_SUBST([GNULIB_PUTS])
  GNULIB_FWRITE=0;               AC_SUBST([GNULIB_FWRITE])
  GNULIB_GETDELIM=0;             AC_SUBST([GNULIB_GETDELIM])
  GNULIB_GETLINE=0;              AC_SUBST([GNULIB_GETLINE])
  GNULIB_PERROR=0;               AC_SUBST([GNULIB_PERROR])
  GNULIB_STDIO_H_SIGPIPE=0;      AC_SUBST([GNULIB_STDIO_H_SIGPIPE])
  dnl Assume proper GNU behavior unless another module says otherwise.
  REPLACE_STDIO_WRITE_FUNCS=0;   AC_SUBST([REPLACE_STDIO_WRITE_FUNCS])
  REPLACE_FPRINTF=0;             AC_SUBST([REPLACE_FPRINTF])
  REPLACE_VFPRINTF=0;            AC_SUBST([REPLACE_VFPRINTF])
  REPLACE_PRINTF=0;              AC_SUBST([REPLACE_PRINTF])
  REPLACE_VPRINTF=0;             AC_SUBST([REPLACE_VPRINTF])
  REPLACE_SNPRINTF=0;            AC_SUBST([REPLACE_SNPRINTF])
  HAVE_DECL_SNPRINTF=1;          AC_SUBST([HAVE_DECL_SNPRINTF])
  REPLACE_VSNPRINTF=0;           AC_SUBST([REPLACE_VSNPRINTF])
  HAVE_DECL_VSNPRINTF=1;         AC_SUBST([HAVE_DECL_VSNPRINTF])
  REPLACE_SPRINTF=0;             AC_SUBST([REPLACE_SPRINTF])
  REPLACE_VSPRINTF=0;            AC_SUBST([REPLACE_VSPRINTF])
  HAVE_DPRINTF=1;                AC_SUBST([HAVE_DPRINTF])
  REPLACE_DPRINTF=0;             AC_SUBST([REPLACE_DPRINTF])
  HAVE_VDPRINTF=1;               AC_SUBST([HAVE_VDPRINTF])
  REPLACE_VDPRINTF=0;            AC_SUBST([REPLACE_VDPRINTF])
  HAVE_VASPRINTF=1;              AC_SUBST([HAVE_VASPRINTF])
  REPLACE_VASPRINTF=0;           AC_SUBST([REPLACE_VASPRINTF])
  HAVE_DECL_OBSTACK_PRINTF=1;    AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
  REPLACE_OBSTACK_PRINTF=0;      AC_SUBST([REPLACE_OBSTACK_PRINTF])
  REPLACE_FOPEN=0;               AC_SUBST([REPLACE_FOPEN])
  REPLACE_FREOPEN=0;             AC_SUBST([REPLACE_FREOPEN])
  HAVE_FSEEKO=1;                 AC_SUBST([HAVE_FSEEKO])
  REPLACE_FSEEKO=0;              AC_SUBST([REPLACE_FSEEKO])
  REPLACE_FSEEK=0;               AC_SUBST([REPLACE_FSEEK])
  HAVE_FTELLO=1;                 AC_SUBST([HAVE_FTELLO])
  REPLACE_FTELLO=0;              AC_SUBST([REPLACE_FTELLO])
  REPLACE_FTELL=0;               AC_SUBST([REPLACE_FTELL])
  REPLACE_FFLUSH=0;              AC_SUBST([REPLACE_FFLUSH])
  REPLACE_FCLOSE=0;              AC_SUBST([REPLACE_FCLOSE])
  HAVE_DECL_GETDELIM=1;          AC_SUBST([HAVE_DECL_GETDELIM])
  HAVE_DECL_GETLINE=1;           AC_SUBST([HAVE_DECL_GETLINE])
  REPLACE_GETLINE=0;             AC_SUBST([REPLACE_GETLINE])
  REPLACE_PERROR=0;              AC_SUBST([REPLACE_PERROR])
])

dnl Code shared by fseeko and ftello.  Determine if large files are supported,
dnl but stdin does not start as a large file by default.
AC_DEFUN([gl_STDIN_LARGE_OFFSET],
  [
    AC_CACHE_CHECK([whether stdin defaults to large file offsets],
      [gl_cv_var_stdin_large_offset],
      [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]],
[[#if defined __SL64 && defined __SCLE /* cygwin */
  /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making
     fseeko/ftello needlessly fail.  This bug was fixed in 1.5.25, and
     it is easier to do a version check than building a runtime test.  */
# include <cygwin/version.h>
# if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25)
  choke me
# endif
#endif]])],
	[gl_cv_var_stdin_large_offset=yes],
	[gl_cv_var_stdin_large_offset=no])])
])