summaryrefslogtreecommitdiffstats
path: root/m4/locale_h.m4
blob: 32494cf225f5398e40f10be15cc0f77902c692f1 (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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
# locale_h.m4 serial 24
dnl Copyright (C) 2007, 2009-2020 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_LOCALE_H],
[
  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
  dnl once only, before all statements that occur in other macros.
  AC_REQUIRE([gl_LOCALE_H_DEFAULTS])

  dnl Persuade glibc <locale.h> to define locale_t and the int_p_*, int_n_*
  dnl members of 'struct lconv'.
  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])

  dnl If <stddef.h> is replaced, then <locale.h> must also be replaced.
  AC_REQUIRE([gl_STDDEF_H])

  AC_REQUIRE([gl_LOCALE_T])

  dnl Solaris 11.0 defines the int_p_*, int_n_* members of 'struct lconv'
  dnl only if _LCONV_C99 is defined.
  AC_REQUIRE([AC_CANONICAL_HOST])
  case "$host_os" in
    solaris*)
      AC_DEFINE([_LCONV_C99], [1], [Define to 1 on Solaris.])
      ;;
  esac

  AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001],
    [gl_cv_header_locale_h_posix2001],
    [AC_COMPILE_IFELSE(
       [AC_LANG_PROGRAM(
          [[#include <locale.h>
            int x = LC_MESSAGES;
            int y = sizeof (((struct lconv *) 0)->decimal_point);]],
          [[]])],
       [gl_cv_header_locale_h_posix2001=yes],
       [gl_cv_header_locale_h_posix2001=no])])

  dnl Check whether 'struct lconv' is complete.
  dnl Bionic libc's 'struct lconv' is just a dummy.
  dnl On OpenBSD 4.9, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x,
  dnl mingw, MSVC 9, it lacks the int_p_* and int_n_* members.
  AC_CACHE_CHECK([whether struct lconv is properly defined],
    [gl_cv_sys_struct_lconv_ok],
    [AC_COMPILE_IFELSE(
       [AC_LANG_PROGRAM(
          [[#include <locale.h>
            struct lconv l;
            int x = sizeof (l.decimal_point);
            int y = sizeof (l.int_p_cs_precedes);]],
          [[]])],
       [gl_cv_sys_struct_lconv_ok=yes],
       [gl_cv_sys_struct_lconv_ok=no])
    ])
  if test $gl_cv_sys_struct_lconv_ok = no; then
    dnl On native Windows with MSVC, merely define these member names as macros.
    dnl This avoids trouble in C++ mode.
    case "$host_os" in
      mingw*)
        AC_EGREP_CPP([Special], [
#ifdef _MSC_VER
 Special
#endif
          ],
          [],
          [REPLACE_STRUCT_LCONV=1])
        ;;
      *) REPLACE_STRUCT_LCONV=1 ;;
    esac
  fi

  dnl <locale.h> is always overridden, because of GNULIB_POSIXCHECK.
  gl_NEXT_HEADERS([locale.h])

  dnl Check for declarations of anything we want to poison if the
  dnl corresponding gnulib module is not in use.
  gl_WARN_ON_USE_PREPARE([[#include <locale.h>
/* Some systems provide declarations in a non-standard header.  */
#if HAVE_XLOCALE_H
# include <xlocale.h>
#endif
    ]],
    [setlocale newlocale duplocale freelocale])
])

dnl Checks to determine whether the system has the locale_t type,
dnl and how to obtain it.
AC_DEFUN([gl_LOCALE_T],
[
  dnl Persuade glibc and Solaris <locale.h> to define locale_t.
  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])

  dnl Check whether use of locale_t requires inclusion of <xlocale.h>,
  dnl e.g. on Mac OS X 10.5. If <locale.h> does not define locale_t by
  dnl itself, we assume that <xlocale.h> will do so.
  AC_CACHE_CHECK([whether locale.h defines locale_t],
    [gl_cv_header_locale_has_locale_t],
    [AC_COMPILE_IFELSE(
       [AC_LANG_PROGRAM(
          [[#include <locale.h>
            locale_t x;]],
          [[]])],
       [gl_cv_header_locale_has_locale_t=yes],
       [gl_cv_header_locale_has_locale_t=no])
    ])

  dnl Check for <xlocale.h>.
  AC_CHECK_HEADERS_ONCE([xlocale.h])
  if test $ac_cv_header_xlocale_h = yes; then
    HAVE_XLOCALE_H=1
    if test $gl_cv_header_locale_has_locale_t = yes; then
      gl_cv_header_locale_h_needs_xlocale_h=no
    else
      gl_cv_header_locale_h_needs_xlocale_h=yes
    fi
    HAVE_LOCALE_T=1
  else
    HAVE_XLOCALE_H=0
    gl_cv_header_locale_h_needs_xlocale_h=no
    if test $gl_cv_header_locale_has_locale_t = yes; then
      HAVE_LOCALE_T=1
    else
      HAVE_LOCALE_T=0
    fi
  fi
  AC_SUBST([HAVE_XLOCALE_H])
])

AC_DEFUN([gl_LOCALE_MODULE_INDICATOR],
[
  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
  dnl Define it also as a C macro, for the benefit of the unit tests.
  gl_MODULE_INDICATOR_FOR_TESTS([$1])
])

AC_DEFUN([gl_LOCALE_H_DEFAULTS],
[
  GNULIB_LOCALECONV=0;     AC_SUBST([GNULIB_LOCALECONV])
  GNULIB_SETLOCALE=0;      AC_SUBST([GNULIB_SETLOCALE])
  GNULIB_SETLOCALE_NULL=0; AC_SUBST([GNULIB_SETLOCALE_NULL])
  GNULIB_DUPLOCALE=0;      AC_SUBST([GNULIB_DUPLOCALE])
  GNULIB_LOCALENAME=0;     AC_SUBST([GNULIB_LOCALENAME])
  dnl Assume proper GNU behavior unless another module says otherwise.
  HAVE_NEWLOCALE=1;       AC_SUBST([HAVE_NEWLOCALE])
  HAVE_DUPLOCALE=1;       AC_SUBST([HAVE_DUPLOCALE])
  HAVE_FREELOCALE=1;      AC_SUBST([HAVE_FREELOCALE])
  REPLACE_LOCALECONV=0;   AC_SUBST([REPLACE_LOCALECONV])
  REPLACE_SETLOCALE=0;    AC_SUBST([REPLACE_SETLOCALE])
  REPLACE_NEWLOCALE=0;    AC_SUBST([REPLACE_NEWLOCALE])
  REPLACE_DUPLOCALE=0;    AC_SUBST([REPLACE_DUPLOCALE])
  REPLACE_FREELOCALE=0;   AC_SUBST([REPLACE_FREELOCALE])
  REPLACE_STRUCT_LCONV=0; AC_SUBST([REPLACE_STRUCT_LCONV])
])