/
ax_lib_expat.m4
275 lines (240 loc) · 8.63 KB
/
ax_lib_expat.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
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_lib_expat.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_LIB_EXPAT([MINIMUM-VERSION])
#
# DESCRIPTION
#
# This macro provides tests of availability of Expat XML Parser of
# particular version or newer. This macro checks for Expat XML Parser
# headers and libraries and defines compilation flags
#
# Macro supports following options and their values:
#
# 1) Single-option usage:
#
# --with-expat -- yes, no, or path to Expat XML Parser
# installation prefix
#
# 2) Three-options usage (all options are required):
#
# --with-expat=yes
# --with-expat-inc -- path to base directory with Expat headers
# --with-expat-lib -- linker flags for Expat
#
# This macro calls:
#
# AC_SUBST(EXPAT_CFLAGS)
# AC_SUBST(EXPAT_LIBS)
# AC_SUBST(EXPAT_VERSION) -- only if version requirement is used
#
# And sets:
#
# HAVE_EXPAT
#
# LICENSE
#
# Copyright (c) 2008 Mateusz Loskot <mateusz@loskot.net>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 9
AC_DEFUN([AX_LIB_EXPAT],
[
AC_ARG_WITH([expat],
AS_HELP_STRING([--with-expat=@<:@ARG@:>@],
[use Expat XML Parser from given prefix (ARG=path); check standard prefixes (ARG=yes); disable (ARG=no)]
),
[
if test "$withval" = "yes"; then
if test -f /usr/local/include/expat.h ; then
expat_prefix=/usr/local
elif test -f /usr/include/expat.h ; then
expat_prefix=/usr
else
expat_prefix=""
fi
expat_requested="yes"
elif test -d "$withval"; then
expat_prefix="$withval"
expat_requested="yes"
else
expat_prefix=""
expat_requested="no"
fi
],
[
dnl Default behavior is implicit yes
if test -f /usr/local/include/expat.h ; then
expat_prefix=/usr/local
elif test -f /usr/include/expat.h ; then
expat_prefix=/usr
else
expat_prefix=""
fi
]
)
AC_ARG_WITH([expat-inc],
AS_HELP_STRING([--with-expat-inc=@<:@DIR@:>@],
[path to Expat XML Parser headers]
),
[expat_include_dir="$withval"],
[expat_include_dir=""]
)
AC_ARG_WITH([expat-lib],
AS_HELP_STRING([--with-expat-lib=@<:@ARG@:>@],
[link options for Expat XML Parser libraries]
),
[expat_lib_flags="$withval"],
[expat_lib_flags=""]
)
EXPAT_CFLAGS=""
EXPAT_LIBS=""
EXPAT_VERSION=""
dnl
dnl Collect include/lib paths and flags
dnl
run_expat_test="no"
if test -n "$expat_prefix"; then
expat_include_dir="$expat_prefix/include"
expat_lib_flags="-L$expat_prefix/$OPENLSWS_LIBDIR -lexpat"
run_expat_test="yes"
elif test "$expat_requested" = "yes"; then
if test -n "$expat_include_dir" -a -n "$expat_lib_flags"; then
run_expat_test="yes"
fi
else
run_expat_test="no"
fi
dnl
dnl Check Expat XML Parser files
dnl
if test "$run_expat_test" = "yes"; then
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS -I$expat_include_dir"
saved_LDFLAGS="$LDFLAGS"
LIBS="$LDFLAGS $expat_lib_flags"
dnl
dnl Check Expat headers
dnl
AC_MSG_CHECKING([for Expat XML Parser headers in $expat_include_dir])
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM(
[[
@%:@include <expat.h>
]],
[[]]
)],
[
EXPAT_CFLAGS="-I$expat_include_dir"
expat_header_found="yes"
AC_MSG_RESULT([found])
],
[
expat_header_found="no"
AC_MSG_RESULT([not found])
]
)
AC_LANG_POP([C++])
dnl
dnl Check Expat libraries
dnl
if test "$expat_header_found" = "yes"; then
AC_MSG_CHECKING([for Expat XML Parser libraries])
AC_LANG_PUSH([C++])
AC_LINK_IFELSE([
AC_LANG_PROGRAM(
[[
@%:@include <expat.h>
]],
[[
XML_Parser p = XML_ParserCreate(NULL);
XML_ParserFree(p);
p = NULL;
]]
)],
[
EXPAT_LIBS="$expat_lib_flags"
expat_lib_found="yes"
AC_MSG_RESULT([found])
],
[
expat_lib_found="no"
AC_MSG_RESULT([not found])
]
)
AC_LANG_POP([C++])
fi
CPPFLAGS="$saved_CPPFLAGS"
LDFLAGS="$saved_LDFLAGS"
fi
AC_MSG_CHECKING([for Expat XML Parser])
if test "$run_expat_test" = "yes"; then
if test "$expat_header_found" = "yes" -a "$expat_lib_found" = "yes"; then
AC_SUBST([EXPAT_CFLAGS])
AC_SUBST([EXPAT_LIBS])
HAVE_EXPAT="yes"
else
HAVE_EXPAT="no"
fi
AC_MSG_RESULT([$HAVE_EXPAT])
dnl
dnl Check Expat version
dnl
if test "$HAVE_EXPAT" = "yes"; then
expat_version_req=ifelse([$1], [], [], [$1])
if test -n "$expat_version_req"; then
AC_MSG_CHECKING([if Expat XML Parser version is >= $expat_version_req])
if test -f "$expat_include_dir/expat.h"; then
expat_major=`cat $expat_include_dir/expat.h | \
grep '^#define.*XML_MAJOR_VERSION.*[0-9]$' | \
sed -e 's/#define XML_MAJOR_VERSION.//'`
expat_minor=`cat $expat_include_dir/expat.h | \
grep '^#define.*XML_MINOR_VERSION.*[0-9]$' | \
sed -e 's/#define XML_MINOR_VERSION.//'`
expat_revision=`cat $expat_include_dir/expat.h | \
grep '^#define.*XML_MICRO_VERSION.*[0-9]$' | \
sed -e 's/#define XML_MICRO_VERSION.//'`
EXPAT_VERSION="$expat_major.$expat_minor.$expat_revision"
AC_SUBST([EXPAT_VERSION])
dnl Decompose required version string and calculate numerical representation
expat_version_req_major=`expr $expat_version_req : '\([[0-9]]*\)'`
expat_version_req_minor=`expr $expat_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
expat_version_req_revision=`expr $expat_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
if test "x$expat_version_req_revision" = "x"; then
expat_version_req_revision="0"
fi
expat_version_req_number=`expr $expat_version_req_major \* 10000 \
\+ $expat_version_req_minor \* 100 \
\+ $expat_version_req_revision`
dnl Calculate numerical representation of detected version
expat_version_number=`expr $expat_major \* 10000 \
\+ $expat_minor \* 100 \
\+ $expat_revision`
expat_version_check=`expr $expat_version_number \>\= $expat_version_req_number`
if test "$expat_version_check" = "1"; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
AC_MSG_WARN([Found Expat XML Parser $EXPAT_VERSION, which is older than required. Possible compilation failure.])
fi
else
AC_MSG_RESULT([no])
AC_MSG_WARN([Missing expat.h header. Unable to determine Expat version.])
fi
fi
fi
else
HAVE_EXPAT="no"
AC_MSG_RESULT([$HAVE_EXPAT])
if test "$expat_requested" = "yes"; then
AC_MSG_WARN([Expat XML Parser support requested but headers or library not found. Specify valid prefix of Expat using --with-expat=@<:@DIR@:>@ or provide include directory and linker flags using --with-expat-inc and --with-expat-lib])
fi
fi
])