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
|
# $Id: types.ac,v 1.1.1.1 2003/11/20 22:13:27 toshok Exp $
# db.h includes <sys/types.h> and <stdio.h>, not the other default includes
# autoconf usually includes. For that reason, we specify a set of includes
# for all type checking tests. [#5060]
AC_DEFUN(DB_INCLUDES, [[
#include <sys/types.h>
#include <stdio.h>]])
# Check the sizes we know about, and see if any of them match what's needed.
#
# Prefer ints to anything else, because read, write and others historically
# returned an int.
AC_DEFUN(AM_SEARCH_USIZES, [
case "$3" in
"$ac_cv_sizeof_unsigned_int")
$1="typedef unsigned int $2;";;
"$ac_cv_sizeof_unsigned_char")
$1="typedef unsigned char $2;";;
"$ac_cv_sizeof_unsigned_short")
$1="typedef unsigned short $2;";;
"$ac_cv_sizeof_unsigned_long")
$1="typedef unsigned long $2;";;
*)
AC_MSG_ERROR([No unsigned $3-byte integral type]);;
esac])
AC_DEFUN(AM_SEARCH_SSIZES, [
case "$3" in
"$ac_cv_sizeof_int")
$1="typedef int $2;";;
"$ac_cv_sizeof_char")
$1="typedef char $2;";;
"$ac_cv_sizeof_short")
$1="typedef short $2;";;
"$ac_cv_sizeof_long")
$1="typedef long $2;";;
*)
AC_MSG_ERROR([No signed $3-byte integral type]);;
esac])
# Check for the standard system types.
AC_DEFUN(AM_TYPES, [
# We need to know the sizes of various objects on this system.
# We don't use the SIZEOF_XXX values created by autoconf.
AC_CHECK_SIZEOF(char,, DB_INCLUDES)
AC_CHECK_SIZEOF(unsigned char,, DB_INCLUDES)
AC_CHECK_SIZEOF(short,, DB_INCLUDES)
AC_CHECK_SIZEOF(unsigned short,, DB_INCLUDES)
AC_CHECK_SIZEOF(int,, DB_INCLUDES)
AC_CHECK_SIZEOF(unsigned int,, DB_INCLUDES)
AC_CHECK_SIZEOF(long,, DB_INCLUDES)
AC_CHECK_SIZEOF(unsigned long,, DB_INCLUDES)
AC_CHECK_SIZEOF(size_t,, DB_INCLUDES)
AC_CHECK_SIZEOF(char *,, DB_INCLUDES)
# We require off_t and size_t, and we don't try to substitute our own
# if we can't find them.
AC_CHECK_TYPE(off_t,,, DB_INCLUDES)
if test "$ac_cv_type_off_t" = no; then
AC_MSG_ERROR([No off_t type.])
fi
AC_CHECK_TYPE(size_t,,, DB_INCLUDES)
if test "$ac_cv_type_size_t" = no; then
AC_MSG_ERROR([No size_t type.])
fi
# We look for u_char, u_short, u_int, u_long -- if we can't find them,
# we create our own.
AC_SUBST(u_char_decl)
AC_CHECK_TYPE(u_char,,, DB_INCLUDES)
if test "$ac_cv_type_u_char" = no; then
u_char_decl="typedef unsigned char u_char;"
fi
AC_SUBST(u_short_decl)
AC_CHECK_TYPE(u_short,,, DB_INCLUDES)
if test "$ac_cv_type_u_short" = no; then
u_short_decl="typedef unsigned short u_short;"
fi
AC_SUBST(u_int_decl)
AC_CHECK_TYPE(u_int,,, DB_INCLUDES)
if test "$ac_cv_type_u_int" = no; then
u_int_decl="typedef unsigned int u_int;"
fi
AC_SUBST(u_long_decl)
AC_CHECK_TYPE(u_long,,, DB_INCLUDES)
if test "$ac_cv_type_u_long" = no; then
u_long_decl="typedef unsigned long u_long;"
fi
AC_SUBST(u_int8_decl)
AC_CHECK_TYPE(u_int8_t,,, DB_INCLUDES)
if test "$ac_cv_type_u_int8_t" = no; then
AM_SEARCH_USIZES(u_int8_decl, u_int8_t, 1)
fi
AC_SUBST(u_int16_decl)
AC_CHECK_TYPE(u_int16_t,,, DB_INCLUDES)
if test "$ac_cv_type_u_int16_t" = no; then
AM_SEARCH_USIZES(u_int16_decl, u_int16_t, 2)
fi
AC_SUBST(int16_decl)
AC_CHECK_TYPE(int16_t,,, DB_INCLUDES)
if test "$ac_cv_type_int16_t" = no; then
AM_SEARCH_SSIZES(int16_decl, int16_t, 2)
fi
AC_SUBST(u_int32_decl)
AC_CHECK_TYPE(u_int32_t,,, DB_INCLUDES)
if test "$ac_cv_type_u_int32_t" = no; then
AM_SEARCH_USIZES(u_int32_decl, u_int32_t, 4)
fi
AC_SUBST(int32_decl)
AC_CHECK_TYPE(int32_t,,, DB_INCLUDES)
if test "$ac_cv_type_int32_t" = no; then
AM_SEARCH_SSIZES(int32_decl, int32_t, 4)
fi
# Check for ssize_t -- if none exists, find a signed integral type that's
# the same size as a size_t.
AC_SUBST(ssize_t_decl)
AC_CHECK_TYPE(ssize_t,,, DB_INCLUDES)
if test "$ac_cv_type_ssize_t" = no; then
AM_SEARCH_SSIZES(ssize_t_decl, ssize_t, $ac_cv_sizeof_size_t)
fi
# Find the largest integral type.
AC_SUBST(db_align_t_decl)
AC_CHECK_TYPE(unsigned long long,,, DB_INCLUDES)
if test "$ac_cv_type_unsigned_long_long" = no; then
db_align_t_decl="typedef unsigned long db_align_t;"
else
db_align_t_decl="typedef unsigned long long db_align_t;"
fi
# Find an integral type which is the same size as a pointer.
AC_SUBST(db_alignp_t_decl)
AM_SEARCH_USIZES(db_alignp_t_decl, db_alignp_t, $ac_cv_sizeof_char_p)
])
|
