diff options
Diffstat (limited to 'gl/m4/wctype_h.m4')
-rw-r--r-- | gl/m4/wctype_h.m4 | 181 |
1 files changed, 157 insertions, 24 deletions
diff --git a/gl/m4/wctype_h.m4 b/gl/m4/wctype_h.m4 index 3292451..82ada0e 100644 --- a/gl/m4/wctype_h.m4 +++ b/gl/m4/wctype_h.m4 | |||
@@ -1,8 +1,8 @@ | |||
1 | # wctype_h.m4 serial 6 | 1 | # wctype_h.m4 serial 18 |
2 | 2 | ||
3 | dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it. | 3 | dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it. |
4 | 4 | ||
5 | dnl Copyright (C) 2006-2010 Free Software Foundation, Inc. | 5 | dnl Copyright (C) 2006-2013 Free Software Foundation, Inc. |
6 | dnl This file is free software; the Free Software Foundation | 6 | dnl This file is free software; the Free Software Foundation |
7 | dnl gives unlimited permission to copy and/or distribute it, | 7 | dnl gives unlimited permission to copy and/or distribute it, |
8 | dnl with or without modifications, as long as this notice is preserved. | 8 | dnl with or without modifications, as long as this notice is preserved. |
@@ -11,6 +11,7 @@ dnl Written by Paul Eggert. | |||
11 | 11 | ||
12 | AC_DEFUN([gl_WCTYPE_H], | 12 | AC_DEFUN([gl_WCTYPE_H], |
13 | [ | 13 | [ |
14 | AC_REQUIRE([gl_WCTYPE_H_DEFAULTS]) | ||
14 | AC_REQUIRE([AC_PROG_CC]) | 15 | AC_REQUIRE([AC_PROG_CC]) |
15 | AC_REQUIRE([AC_CANONICAL_HOST]) | 16 | AC_REQUIRE([AC_CANONICAL_HOST]) |
16 | AC_CHECK_FUNCS_ONCE([iswcntrl]) | 17 | AC_CHECK_FUNCS_ONCE([iswcntrl]) |
@@ -20,15 +21,6 @@ AC_DEFUN([gl_WCTYPE_H], | |||
20 | HAVE_ISWCNTRL=0 | 21 | HAVE_ISWCNTRL=0 |
21 | fi | 22 | fi |
22 | AC_SUBST([HAVE_ISWCNTRL]) | 23 | AC_SUBST([HAVE_ISWCNTRL]) |
23 | AC_CHECK_FUNCS_ONCE([iswblank]) | ||
24 | if test $ac_cv_func_iswblank = yes; then | ||
25 | HAVE_ISWBLANK=1 | ||
26 | else | ||
27 | HAVE_ISWBLANK=0 | ||
28 | fi | ||
29 | AC_SUBST([HAVE_ISWBLANK]) | ||
30 | AC_CHECK_HEADERS_ONCE([wctype.h]) | ||
31 | AC_REQUIRE([AC_C_INLINE]) | ||
32 | 24 | ||
33 | AC_REQUIRE([gt_TYPE_WINT_T]) | 25 | AC_REQUIRE([gt_TYPE_WINT_T]) |
34 | if test $gt_cv_c_wint_t = yes; then | 26 | if test $gt_cv_c_wint_t = yes; then |
@@ -38,39 +30,180 @@ AC_DEFUN([gl_WCTYPE_H], | |||
38 | fi | 30 | fi |
39 | AC_SUBST([HAVE_WINT_T]) | 31 | AC_SUBST([HAVE_WINT_T]) |
40 | 32 | ||
33 | gl_CHECK_NEXT_HEADERS([wctype.h]) | ||
41 | if test $ac_cv_header_wctype_h = yes; then | 34 | if test $ac_cv_header_wctype_h = yes; then |
42 | if test $ac_cv_func_iswcntrl = yes; then | 35 | if test $ac_cv_func_iswcntrl = yes; then |
43 | dnl Linux libc5 has an iswprint function that returns 0 for all arguments. | 36 | dnl Linux libc5 has an iswprint function that returns 0 for all arguments. |
44 | dnl The other functions are likely broken in the same way. | 37 | dnl The other functions are likely broken in the same way. |
45 | AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works], | 38 | AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works], |
46 | [ | 39 | [ |
47 | AC_RUN_IFELSE([AC_LANG_SOURCE([[ | 40 | AC_RUN_IFELSE( |
48 | #include <stddef.h> | 41 | [AC_LANG_SOURCE([[ |
49 | #include <stdio.h> | 42 | /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be |
50 | #include <time.h> | 43 | included before <wchar.h>. |
51 | #include <wchar.h> | 44 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> |
52 | #include <wctype.h> | 45 | must be included before <wchar.h>. */ |
53 | int main () { return iswprint ('x') == 0; }]])], | 46 | #include <stddef.h> |
47 | #include <stdio.h> | ||
48 | #include <time.h> | ||
49 | #include <wchar.h> | ||
50 | #include <wctype.h> | ||
51 | int main () { return iswprint ('x') == 0; } | ||
52 | ]])], | ||
54 | [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no], | 53 | [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no], |
55 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h> | 54 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h> |
56 | #if __GNU_LIBRARY__ == 1 | 55 | #if __GNU_LIBRARY__ == 1 |
57 | Linux libc5 i18n is broken. | 56 | Linux libc5 i18n is broken. |
58 | #endif]], [])], | 57 | #endif]], [])], |
59 | [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no]) | 58 | [gl_cv_func_iswcntrl_works="guessing yes"], |
59 | [gl_cv_func_iswcntrl_works="guessing no"]) | ||
60 | ]) | 60 | ]) |
61 | ]) | 61 | ]) |
62 | fi | 62 | fi |
63 | gl_CHECK_NEXT_HEADERS([wctype.h]) | ||
64 | HAVE_WCTYPE_H=1 | 63 | HAVE_WCTYPE_H=1 |
65 | else | 64 | else |
66 | HAVE_WCTYPE_H=0 | 65 | HAVE_WCTYPE_H=0 |
67 | fi | 66 | fi |
68 | AC_SUBST([HAVE_WCTYPE_H]) | 67 | AC_SUBST([HAVE_WCTYPE_H]) |
69 | 68 | ||
70 | if test "$gl_cv_func_iswcntrl_works" = no; then | 69 | case "$gl_cv_func_iswcntrl_works" in |
71 | REPLACE_ISWCNTRL=1 | 70 | *yes) REPLACE_ISWCNTRL=0 ;; |
71 | *) REPLACE_ISWCNTRL=1 ;; | ||
72 | esac | ||
73 | AC_SUBST([REPLACE_ISWCNTRL]) | ||
74 | |||
75 | if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then | ||
76 | dnl Redefine all of iswcntrl, ..., iswxdigit in <wctype.h>. | ||
77 | : | ||
78 | fi | ||
79 | |||
80 | if test $REPLACE_ISWCNTRL = 1; then | ||
81 | REPLACE_TOWLOWER=1 | ||
72 | else | 82 | else |
73 | REPLACE_ISWCNTRL=0 | 83 | AC_CHECK_FUNCS([towlower]) |
84 | if test $ac_cv_func_towlower = yes; then | ||
85 | REPLACE_TOWLOWER=0 | ||
86 | else | ||
87 | AC_CHECK_DECLS([towlower],,, | ||
88 | [[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be | ||
89 | included before <wchar.h>. | ||
90 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> | ||
91 | must be included before <wchar.h>. */ | ||
92 | #include <stddef.h> | ||
93 | #include <stdio.h> | ||
94 | #include <time.h> | ||
95 | #include <wchar.h> | ||
96 | #if HAVE_WCTYPE_H | ||
97 | # include <wctype.h> | ||
98 | #endif | ||
99 | ]]) | ||
100 | if test $ac_cv_have_decl_towlower = yes; then | ||
101 | dnl On Minix 3.1.8, the system's <wctype.h> declares towlower() and | ||
102 | dnl towupper() although it does not have the functions. Avoid a | ||
103 | dnl collision with gnulib's replacement. | ||
104 | REPLACE_TOWLOWER=1 | ||
105 | else | ||
106 | REPLACE_TOWLOWER=0 | ||
107 | fi | ||
108 | fi | ||
74 | fi | 109 | fi |
75 | AC_SUBST([REPLACE_ISWCNTRL]) | 110 | AC_SUBST([REPLACE_TOWLOWER]) |
111 | |||
112 | if test $HAVE_ISWCNTRL = 0 || test $REPLACE_TOWLOWER = 1; then | ||
113 | dnl Redefine towlower, towupper in <wctype.h>. | ||
114 | : | ||
115 | fi | ||
116 | |||
117 | dnl We assume that the wctype() and iswctype() functions exist if and only | ||
118 | dnl if the type wctype_t is defined in <wchar.h> or in <wctype.h> if that | ||
119 | dnl exists. | ||
120 | dnl HP-UX 11.00 declares all these in <wchar.h> and lacks <wctype.h>. | ||
121 | AC_CACHE_CHECK([for wctype_t], [gl_cv_type_wctype_t], | ||
122 | [AC_COMPILE_IFELSE( | ||
123 | [AC_LANG_PROGRAM( | ||
124 | [[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be | ||
125 | included before <wchar.h>. | ||
126 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> | ||
127 | must be included before <wchar.h>. */ | ||
128 | #include <stddef.h> | ||
129 | #include <stdio.h> | ||
130 | #include <time.h> | ||
131 | #include <wchar.h> | ||
132 | #if HAVE_WCTYPE_H | ||
133 | # include <wctype.h> | ||
134 | #endif | ||
135 | wctype_t a; | ||
136 | ]], | ||
137 | [[]])], | ||
138 | [gl_cv_type_wctype_t=yes], | ||
139 | [gl_cv_type_wctype_t=no]) | ||
140 | ]) | ||
141 | if test $gl_cv_type_wctype_t = no; then | ||
142 | HAVE_WCTYPE_T=0 | ||
143 | fi | ||
144 | |||
145 | dnl We assume that the wctrans() and towctrans() functions exist if and only | ||
146 | dnl if the type wctrans_t is defined in <wctype.h>. | ||
147 | AC_CACHE_CHECK([for wctrans_t], [gl_cv_type_wctrans_t], | ||
148 | [AC_COMPILE_IFELSE( | ||
149 | [AC_LANG_PROGRAM( | ||
150 | [[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be | ||
151 | included before <wchar.h>. | ||
152 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> | ||
153 | must be included before <wchar.h>. */ | ||
154 | #include <stddef.h> | ||
155 | #include <stdio.h> | ||
156 | #include <time.h> | ||
157 | #include <wchar.h> | ||
158 | #include <wctype.h> | ||
159 | wctrans_t a; | ||
160 | ]], | ||
161 | [[]])], | ||
162 | [gl_cv_type_wctrans_t=yes], | ||
163 | [gl_cv_type_wctrans_t=no]) | ||
164 | ]) | ||
165 | if test $gl_cv_type_wctrans_t = no; then | ||
166 | HAVE_WCTRANS_T=0 | ||
167 | fi | ||
168 | |||
169 | dnl Check for declarations of anything we want to poison if the | ||
170 | dnl corresponding gnulib module is not in use. | ||
171 | gl_WARN_ON_USE_PREPARE([[ | ||
172 | /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before | ||
173 | <wchar.h>. | ||
174 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be | ||
175 | included before <wchar.h>. */ | ||
176 | #if !(defined __GLIBC__ && !defined __UCLIBC__) | ||
177 | # include <stddef.h> | ||
178 | # include <stdio.h> | ||
179 | # include <time.h> | ||
180 | # include <wchar.h> | ||
181 | #endif | ||
182 | #include <wctype.h> | ||
183 | ]], | ||
184 | [wctype iswctype wctrans towctrans | ||
185 | ]) | ||
186 | ]) | ||
187 | |||
188 | AC_DEFUN([gl_WCTYPE_MODULE_INDICATOR], | ||
189 | [ | ||
190 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only. | ||
191 | AC_REQUIRE([gl_WCTYPE_H_DEFAULTS]) | ||
192 | gl_MODULE_INDICATOR_SET_VARIABLE([$1]) | ||
193 | dnl Define it also as a C macro, for the benefit of the unit tests. | ||
194 | gl_MODULE_INDICATOR_FOR_TESTS([$1]) | ||
195 | ]) | ||
196 | |||
197 | AC_DEFUN([gl_WCTYPE_H_DEFAULTS], | ||
198 | [ | ||
199 | GNULIB_ISWBLANK=0; AC_SUBST([GNULIB_ISWBLANK]) | ||
200 | GNULIB_WCTYPE=0; AC_SUBST([GNULIB_WCTYPE]) | ||
201 | GNULIB_ISWCTYPE=0; AC_SUBST([GNULIB_ISWCTYPE]) | ||
202 | GNULIB_WCTRANS=0; AC_SUBST([GNULIB_WCTRANS]) | ||
203 | GNULIB_TOWCTRANS=0; AC_SUBST([GNULIB_TOWCTRANS]) | ||
204 | dnl Assume proper GNU behavior unless another module says otherwise. | ||
205 | HAVE_ISWBLANK=1; AC_SUBST([HAVE_ISWBLANK]) | ||
206 | HAVE_WCTYPE_T=1; AC_SUBST([HAVE_WCTYPE_T]) | ||
207 | HAVE_WCTRANS_T=1; AC_SUBST([HAVE_WCTRANS_T]) | ||
208 | REPLACE_ISWBLANK=0; AC_SUBST([REPLACE_ISWBLANK]) | ||
76 | ]) | 209 | ]) |