forked from ghc/packages-base
-
Notifications
You must be signed in to change notification settings - Fork 0
/
aclocal.m4
226 lines (197 loc) · 6.14 KB
/
aclocal.m4
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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
# FP_COMPUTE_INT(EXPRESSION, VARIABLE, INCLUDES, IF-FAILS)
# --------------------------------------------------------
# Assign VARIABLE the value of the compile-time EXPRESSION using INCLUDES for
# compilation. Execute IF-FAILS when unable to determine the value. Works for
# cross-compilation, too.
#
# Implementation note: We are lazy and use an internal autoconf macro, but it
# is supported in autoconf versions 2.50 up to the actual 2.57, so there is
# little risk.
AC_DEFUN([FP_COMPUTE_INT],
[_AC_COMPUTE_INT([$1], [$2], [$3], [$4])[]dnl
])# FP_COMPUTE_INT
# FP_CHECK_CONST(EXPRESSION, [INCLUDES = DEFAULT-INCLUDES], [VALUE-IF-FAIL = -1])
# -------------------------------------------------------------------------------
# Defines CONST_EXPRESSION to the value of the compile-time EXPRESSION, using
# INCLUDES. If the value cannot be determined, use VALUE-IF-FAIL.
AC_DEFUN([FP_CHECK_CONST],
[AS_VAR_PUSHDEF([fp_Cache], [fp_cv_const_$1])[]dnl
AC_CACHE_CHECK([value of $1], fp_Cache,
[FP_COMPUTE_INT([$1], fp_check_const_result, [AC_INCLUDES_DEFAULT([$2])],
[fp_check_const_result=m4_default([$3], ['-1'])])
AS_VAR_SET(fp_Cache, [$fp_check_const_result])])[]dnl
AC_DEFINE_UNQUOTED(AS_TR_CPP([CONST_$1]), AS_VAR_GET(fp_Cache), [The value of $1.])[]dnl
AS_VAR_POPDEF([fp_Cache])[]dnl
])# FP_CHECK_CONST
# FP_CHECK_CONSTS_TEMPLATE(EXPRESSION...)
# ---------------------------------------
# autoheader helper for FP_CHECK_CONSTS
m4_define([FP_CHECK_CONSTS_TEMPLATE],
[AC_FOREACH([fp_Const], [$1],
[AH_TEMPLATE(AS_TR_CPP(CONST_[]fp_Const),
[The value of ]fp_Const[.])])[]dnl
])# FP_CHECK_CONSTS_TEMPLATE
# FP_CHECK_CONSTS(EXPRESSION..., [INCLUDES = DEFAULT-INCLUDES], [VALUE-IF-FAIL = -1])
# -----------------------------------------------------------------------------------
# List version of FP_CHECK_CONST
AC_DEFUN([FP_CHECK_CONSTS],
[FP_CHECK_CONSTS_TEMPLATE([$1])dnl
for fp_const_name in $1
do
FP_CHECK_CONST([$fp_const_name], [$2], [$3])
done
])# FP_CHECK_CONSTS
dnl ** Map an arithmetic C type to a Haskell type.
dnl Based on autconf's AC_CHECK_SIZEOF.
dnl FPTOOLS_CHECK_HTYPE(TYPE [, DEFAULT_VALUE, [, VALUE-FOR-CROSS-COMPILATION])
AC_DEFUN([FPTOOLS_CHECK_HTYPE],
[changequote(<<, >>)dnl
dnl The name to #define.
define(<<AC_TYPE_NAME>>, translit(htype_$1, [a-z *], [A-Z_P]))dnl
dnl The cache variable name.
define(<<AC_CV_NAME>>, translit(fptools_cv_htype_$1, [ *], [_p]))dnl
define(<<AC_CV_NAME_supported>>, translit(fptools_cv_htype_sup_$1, [ *], [_p]))dnl
changequote([, ])dnl
AC_MSG_CHECKING(Haskell type for $1)
AC_CACHE_VAL(AC_CV_NAME,
[AC_CV_NAME_supported=yes
fp_check_htype_save_cppflags="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <stddef.h>
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#if HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#if HAVE_FCNTL_H
# include <fcntl.h>
#endif
#if HAVE_SIGNAL_H
# include <signal.h>
#endif
#if HAVE_TIME_H
# include <time.h>
#endif
#if HAVE_TERMIOS_H
# include <termios.h>
#endif
#if HAVE_STRING_H
# include <string.h>
#endif
#if HAVE_CTYPE_H
# include <ctype.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#else
# if HAVE_STDINT_H
# include <stdint.h>
# endif
#endif
#if defined(HAVE_GL_GL_H)
# include <GL/gl.h>
#elif defined(HAVE_OPENGL_GL_H)
# include <OpenGL/gl.h>
#endif
#if defined(HAVE_AL_AL_H)
# include <AL/al.h>
#elif defined(HAVE_OPENAL_AL_H)
# include <OpenAL/al.h>
#endif
#if defined(HAVE_AL_ALC_H)
# include <AL/alc.h>
#elif defined(HAVE_OPENAL_ALC_H)
# include <OpenAL/alc.h>
#endif
#if HAVE_SYS_RESOURCE_H
# include <sys/resource.h>
#endif
typedef $1 testing;
main() {
FILE *f=fopen("conftestval", "w");
if (!f) exit(1);
if (((testing)((int)((testing)1.4))) == ((testing)1.4)) {
fprintf(f, "%s%d\n",
((testing)(-1) < (testing)0) ? "Int" : "Word",
sizeof(testing)*8);
} else {
fprintf(f,"%s\n",
(sizeof(testing) > sizeof(double)) ? "LDouble" :
(sizeof(testing) == sizeof(double)) ? "Double" : "Float");
}
fclose(f);
exit(0);
}]])],[AC_CV_NAME=`cat conftestval`],
[ifelse([$2], , [AC_CV_NAME=NotReallyAType; AC_CV_NAME_supported=no], [AC_CV_NAME=$2])],
[ifelse([$3], , [AC_CV_NAME=NotReallyATypeCross; AC_CV_NAME_supported=no], [AC_CV_NAME=$3])])
CPPFLAGS="$fp_check_htype_save_cppflags"]) dnl
if test "$AC_CV_NAME_supported" = yes; then
AC_MSG_RESULT($AC_CV_NAME)
AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [Define to Haskell type for $1])
else
AC_MSG_RESULT([not supported])
fi
undefine([AC_TYPE_NAME])dnl
undefine([AC_CV_NAME])dnl
undefine([AC_CV_NAME_supported])dnl
])
# FP_READDIR_EOF_ERRNO
# --------------------
# Defines READDIR_ERRNO_EOF to what readdir() sets 'errno' to upon reaching end
# of directory (not set => 0); not setting it is the correct thing to do, but
# MinGW based versions have set it to ENOENT until recently (summer 2004).
AC_DEFUN([FP_READDIR_EOF_ERRNO],
[AC_CACHE_CHECK([what readdir sets errno to upon EOF], [fptools_cv_readdir_eof_errno],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <dirent.h>
#include <stdio.h>
#include <errno.h>
int
main(argc, argv)
int argc;
char **argv;
{
FILE *f=fopen("conftestval", "w");
#if defined(__MINGW32__)
int fd = mkdir("testdir");
#else
int fd = mkdir("testdir", 0666);
#endif
DIR* dp;
struct dirent* de;
int err = 0;
if (!f) return 1;
if (fd == -1) {
fprintf(stderr,"unable to create directory; quitting.\n");
return 1;
}
close(fd);
dp = opendir("testdir");
if (!dp) {
fprintf(stderr,"unable to browse directory; quitting.\n");
rmdir("testdir");
return 1;
}
/* the assumption here is that readdir() will only return NULL
* due to reaching the end of the directory.
*/
while (de = readdir(dp)) {
;
}
err = errno;
fprintf(f,"%d", err);
fclose(f);
closedir(dp);
rmdir("testdir");
return 0;
}]])],
[fptools_cv_readdir_eof_errno=`cat conftestval`],
[AC_MSG_WARN([failed to determine the errno value])
fptools_cv_readdir_eof_errno=0],
[fptools_cv_readdir_eof_errno=0])])
AC_DEFINE_UNQUOTED([READDIR_ERRNO_EOF], [$fptools_cv_readdir_eof_errno], [readdir() sets errno to this upon EOF])
])# FP_READDIR_EOF_ERRNO