3 # AX_LIB_XML2([MINIMUM-VERSION])
7 # This macro provides tests of availability of xml2 'libxml2' library
8 # of particular version or newer.
10 # AX_LIB_LIBXML2 macro takes only one argument which is optional. If
11 # there is no required version passed, then macro does not run version
14 # The --with-libxml2 option takes one of three possible values:
16 # no - do not check for xml2 library
18 # yes - do check for xml2 library in standard locations (xml2-config
19 # should be in the PATH)
21 # path - complete path to xml2-config utility, use this option if xml2-config
22 # can't be found in the PATH
26 # AC_SUBST(XML2_CFLAGS)
27 # AC_SUBST(XML2_LDFLAGS)
28 # AC_SUBST(XML2_VERSION)
36 # Copyright (c) 2009 Hartmut Holzgraefe <hartmut@php.net>
38 # Copying and distribution of this file, with or without modification, are
39 # permitted in any medium without royalty provided the copyright notice
40 # and this notice are preserved.
42 AC_DEFUN([AX_LIB_XML2],
44 AC_ARG_WITH([libxml2],
45 AC_HELP_STRING([--with-libxml2=@<:@ARG@:>@],
46 [use libxml2 library @<:@default=yes@:>@, optionally specify path to xml2-config]
49 if test "$withval" = "no"; then
51 elif test "$withval" = "yes"; then
55 XML2_CONFIG="$withval"
66 dnl Check xml2 libraries (libxml2)
69 if test "$want_libxml2" = "yes"; then
71 if test -z "$XML2_CONFIG" -o test; then
72 AC_PATH_PROG([XML2_CONFIG], [xml2-config], [])
75 if test ! -x "$XML2_CONFIG"; then
76 AC_MSG_ERROR([$XML2_CONFIG does not exist or it is not an exectuable file])
81 if test "$XML2_CONFIG" != "no"; then
82 AC_MSG_CHECKING([for xml2 libraries])
84 XML2_CFLAGS="`$XML2_CONFIG --cflags`"
85 XML2_LDFLAGS="`$XML2_CONFIG --libs`"
87 XML2_VERSION=`$XML2_CONFIG --version`
89 AC_DEFINE([HAVE_XML2], [1],
90 [Define to 1 if xml2 libraries are available])
101 dnl Check if required version of xml2 is available
105 libxml2_version_req=ifelse([$1], [], [], [$1])
108 if test "$found_libxml2" = "yes" -a -n "$libxml2_version_req"; then
110 AC_MSG_CHECKING([if libxml2 version is >= $libxml2_version_req])
112 dnl Decompose required version string of libxml2
113 dnl and calculate its number representation
114 libxml2_version_req_major=`expr $libxml2_version_req : '\([[0-9]]*\)'`
115 libxml2_version_req_minor=`expr $libxml2_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
116 libxml2_version_req_micro=`expr $libxml2_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
117 if test "x$libxml2_version_req_micro" = "x"; then
118 libxml2_version_req_micro="0"
121 libxml2_version_req_number=`expr $libxml2_version_req_major \* 1000000 \
122 \+ $libxml2_version_req_minor \* 1000 \
123 \+ $libxml2_version_req_micro`
125 dnl Decompose version string of installed PostgreSQL
126 dnl and calculate its number representation
127 libxml2_version_major=`expr $XML2_VERSION : '\([[0-9]]*\)'`
128 libxml2_version_minor=`expr $XML2_VERSION : '[[0-9]]*\.\([[0-9]]*\)'`
129 libxml2_version_micro=`expr $XML2_VERSION : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
130 if test "x$libxml2_version_micro" = "x"; then
131 libxml2_version_micro="0"
134 libxml2_version_number=`expr $libxml2_version_major \* 1000000 \
135 \+ $libxml2_version_minor \* 1000 \
136 \+ $libxml2_version_micro`
138 libxml2_version_check=`expr $libxml2_version_number \>\= $libxml2_version_req_number`
139 if test "$libxml2_version_check" = "1"; then
146 AC_SUBST([XML2_VERSION])
147 AC_SUBST([XML2_CFLAGS])
148 AC_SUBST([XML2_LDFLAGS])