win32/3rdparty/libxml2/configure.ac
8cf9b527
 dnl Process this file with autoconf to produce a configure script.
 AC_PREREQ([2.63])
 AC_INIT
 AC_CONFIG_SRCDIR([entities.c])
 AC_CONFIG_HEADERS([config.h])
 AM_MAINTAINER_MODE([enable])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CANONICAL_HOST
 
 LIBXML_MAJOR_VERSION=2
 LIBXML_MINOR_VERSION=9
 LIBXML_MICRO_VERSION=8
 LIBXML_MICRO_VERSION_SUFFIX=
 LIBXML_VERSION=$LIBXML_MAJOR_VERSION.$LIBXML_MINOR_VERSION.$LIBXML_MICRO_VERSION$LIBXML_MICRO_VERSION_SUFFIX
 LIBXML_VERSION_INFO=`expr $LIBXML_MAJOR_VERSION + $LIBXML_MINOR_VERSION`:$LIBXML_MICRO_VERSION:$LIBXML_MINOR_VERSION
 
 LIBXML_VERSION_NUMBER=`expr $LIBXML_MAJOR_VERSION \* 10000 + $LIBXML_MINOR_VERSION \* 100 + $LIBXML_MICRO_VERSION`
 
 if test -f CVS/Entries ; then
   extra=`grep ChangeLog CVS/Entries | grep -v LIBXML | sed -e s\%/ChangeLog/1\.%% -e s\%/.*$%%`
   echo extra=$extra
   if test "$extra" != ""
   then
       LIBXML_VERSION_EXTRA="-CVS$extra"
   fi
 else if test -d .svn ; then
   extra=`svn info | grep Revision | sed 's+Revision: ++'`
   echo extra=$extra
   if test "$extra" != ""
   then
       LIBXML_VERSION_EXTRA="-SVN$extra"
   fi
 else if test -d .git ; then
   extra=`git describe 2>/dev/null | sed 's+LIBXML[[0-9.]]*-++'`
   echo extra=$extra
   if test "$extra" != ""
   then
       LIBXML_VERSION_EXTRA="-GIT$extra"
   fi
 fi
 fi
 fi
 AC_SUBST(LIBXML_MAJOR_VERSION)
 AC_SUBST(LIBXML_MINOR_VERSION)
 AC_SUBST(LIBXML_MICRO_VERSION)
 AC_SUBST(LIBXML_VERSION)
 AC_SUBST(LIBXML_VERSION_INFO)
 AC_SUBST(LIBXML_VERSION_NUMBER)
 AC_SUBST(LIBXML_VERSION_EXTRA)
 
 VERSION=${LIBXML_VERSION}
 
 AM_INIT_AUTOMAKE(libxml2, $VERSION)
 
 # Support silent build rules, requires at least automake-1.11. Disable
 # by either passing --disable-silent-rules to configure or passing V=1
 # to make
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_MKDIR_P
 AC_PROG_CPP
 AC_PATH_PROG(MV, mv, /bin/mv)
 AC_PATH_PROG(TAR, tar, /bin/tar)
 AC_PATH_PROG(PERL, perl, /usr/bin/perl)
 AC_PATH_PROG(WGET, wget, /usr/bin/wget)
 AC_PATH_PROG(XMLLINT, xmllint, /usr/bin/xmllint)
 AC_PATH_PROG(XSLTPROC, xsltproc, /usr/bin/xsltproc)
 PKG_PROG_PKG_CONFIG
 
 LT_INIT
 
 dnl
 dnl if the system support linker version scripts for symbol versioning
 dnl then add it
 dnl
 VERSION_SCRIPT_FLAGS=
 # lt_cv_prog_gnu_ld is from libtool 2.+
 if test "$lt_cv_prog_gnu_ld" = yes; then
   VERSION_SCRIPT_FLAGS=-Wl,--version-script=
 else
   case $host in
   *-*-sunos*) VERSION_SCRIPT_FLAGS="-Wl,-M -Wl,";;
   esac
 fi
 AC_SUBST(VERSION_SCRIPT_FLAGS)
 AM_CONDITIONAL([USE_VERSION_SCRIPT], [test -n "$VERSION_SCRIPT_FLAGS"])
 
 dnl
 dnl We process the AC_ARG_WITH first so that later we can modify
 dnl some of them to try to prevent impossible combinations.  This
 dnl also allows up so alphabetize the choices
 dnl
 
 dnl
 dnl zlib option might change flags, so we save them initially
 dnl
 _cppflags="${CPPFLAGS}"
 _libs="${LIBS}"
 
 AC_ARG_WITH(c14n,
 [  --with-c14n             add the Canonicalization support (on)])
 AC_ARG_WITH(catalog,
 [  --with-catalog          add the Catalog support (on)])
 AC_ARG_WITH(debug,
 [  --with-debug            add the debugging module (on)])
 AC_ARG_WITH(docbook,
 [  --with-docbook          add Docbook SGML support (on)])
 AC_ARG_WITH(fexceptions,
 [  --with-fexceptions      add GCC flag -fexceptions for C++ exceptions (off)])
 AC_ARG_WITH(ftp,
 [  --with-ftp              add the FTP support (on)])
 AC_ARG_WITH(history,
 [  --with-history          add history support to xmllint shell(off)])
 AC_ARG_WITH(html,
 [  --with-html             add the HTML support (on)])
 dnl Specific dir for HTML output ?
 AC_ARG_WITH(html-dir, AS_HELP_STRING([--with-html-dir=path],
             [path to base html directory, default $datadir/doc/html]),
             [HTML_DIR=$withval], [HTML_DIR='$(datadir)/doc'])
 
 AC_ARG_WITH(html-subdir, AS_HELP_STRING([--with-html-subdir=path],
             [directory used under html-dir, default $PACKAGE-$VERSION/html]),
             [test "x$withval" != "x" && HTML_DIR="$HTML_DIR/$withval"],
             [HTML_DIR="$HTML_DIR/\$(PACKAGE)-\$(VERSION)/html"])
 AC_SUBST(HTML_DIR)
 AC_ARG_WITH(http,
 [  --with-http             add the HTTP support (on)])
 AC_ARG_WITH(iconv,
 [  --with-iconv[[=DIR]]      add ICONV support (on)])
 AC_ARG_WITH(icu,
 [  --with-icu                add ICU support (off)])
 AC_ARG_WITH(iso8859x,
 [  --with-iso8859x         add ISO8859X support if no iconv (on)])
 AC_ARG_WITH(legacy,
 [  --with-legacy           add deprecated APIs for compatibility (on)])
 AC_ARG_WITH(mem_debug,
 [  --with-mem-debug        add the memory debugging module (off)])
 AC_ARG_WITH(minimum,
 [  --with-minimum          build a minimally sized library (off)])
 AC_ARG_WITH(output,
 [  --with-output           add the serialization support (on)])
 AC_ARG_WITH(pattern,
 [  --with-pattern          add the xmlPattern selection interface (on)])
 AC_ARG_WITH(push,
 [  --with-push             add the PUSH parser interfaces (on)])
 AC_ARG_WITH(python,
 [  --with-python[[=DIR]]     build Python bindings if found])
 AC_ARG_WITH(python_install_dir,
 [  --with-python-install-dir=DIR
                           install Python bindings in DIR])
 AC_ARG_WITH(reader,
 [  --with-reader           add the xmlReader parsing interface (on)])
 AC_ARG_WITH(readline,
 [  --with-readline=DIR     use readline in DIR],[
   if test "$withval" != "no" -a "$withval" != "yes"; then
     RDL_DIR=$withval
     CPPFLAGS="${CPPFLAGS} -I$withval/include"
     LDFLAGS="${LDFLAGS} -L$withval/lib"
   fi
 ])
 AC_ARG_WITH(regexps,
 [  --with-regexps          add Regular Expressions support (on)])
 AC_ARG_WITH(run_debug,
 [  --with-run-debug        add the runtime debugging module (off)])
 AC_ARG_WITH(sax1,
 [  --with-sax1             add the older SAX1 interface (on)])
 AC_ARG_WITH(schemas,
 [  --with-schemas          add Relax-NG and Schemas support (on)])
 AC_ARG_WITH(schematron,
 [  --with-schematron       add Schematron support (on)])
 AC_ARG_WITH(threads,
 [  --with-threads          add multithread support(on)])
 AC_ARG_WITH(thread-alloc,
 [  --with-thread-alloc     add per-thread memory(off)])
 AC_ARG_WITH(tree,
 [  --with-tree             add the DOM like tree manipulation APIs (on)])
 AC_ARG_WITH(valid,
 [  --with-valid            add the DTD validation support (on)])
 AC_ARG_WITH(writer,
 [  --with-writer           add the xmlWriter saving interface (on)])
 AC_ARG_WITH(xinclude,
 [  --with-xinclude         add the XInclude support (on)])
 AC_ARG_WITH(xpath,
 [  --with-xpath            add the XPATH support (on)])
 AC_ARG_WITH(xptr,
 [  --with-xptr             add the XPointer support (on)])
 AC_ARG_WITH(modules,
 [  --with-modules          add the dynamic modules support (on)])
 AC_ARG_WITH(zlib,
 [  --with-zlib[[=DIR]]       use libz in DIR],[
   if test "$withval" != "no" -a "$withval" != "yes"; then
     Z_DIR=$withval
     CPPFLAGS="${CPPFLAGS} -I$withval/include"
     LDFLAGS="${LDFLAGS} -L$withval/lib"
   fi
 ])
 AC_ARG_WITH(lzma,
 [  --with-lzma[[=DIR]]       use liblzma in DIR],[
   if test "$withval" != "no" -a "$withval" != "yes"; then
     LZMA_DIR=$withval
     CPPFLAGS="${CPPFLAGS} -I$withval/include"
     LDFLAGS="${LDFLAGS} -L$withval/lib"
   fi
 ])
 AC_ARG_WITH(coverage,
 [  --with-coverage         build for code coverage with GCC (off)])
 
 AC_ARG_ENABLE(rebuild-docs,
 [  --enable-rebuild-docs[[=yes/no]]  rebuild some generated docs [[default=no]]])
 if test "$enable_rebuild_docs" = "yes" -a "$srcdir" != "."; then
   AC_MSG_ERROR([cannot rebuild docs when builddir != srcdir])
 fi
 AM_CONDITIONAL([REBUILD_DOCS], [test "$enable_rebuild_docs" = "yes" -o "$USER" = "veillard"])
 
 dnl
 dnl hard dependancies on options
 dnl
 if test "$with_schemas" = "yes"
 then
     with_pattern=yes
     with_regexps=yes
 fi
 if test "$with_schematron" = "yes"
 then
     with_pattern=yes
     with_tree=yes
     with_xpath=yes
 fi
 if test "$with_reader" = "yes"
 then
     with_push=yes
 fi
 if test "$with_xptr" = "yes"
 then
     with_xpath=yes
 fi
 dnl
 dnl option to build a minimal libxml2 library
 dnl
 if test "$with_minimum" = "yes"
 then
     echo "Configuring for a minimal library"
     if test "$with_c14n" = ""
     then
       with_c14n=no
     fi
     if test "$with_catalog" = ""
     then
       with_catalog=no
     fi
     echo So far so good!
     if test "$with_debug" = ""
     then
       with_debug=no
     fi
     if test "$with_docbook" = ""
     then
       with_docbook=no
     fi
     if test "$with_fexceptions" = ""
     then
       with_fexceptions=no
     fi
     if test "$with_ftp" = ""
     then
       with_ftp=no 
     fi
     if test "$with_history" = ""
     then
       with_history=no
     fi
     if test "$with_html" = ""
     then
       with_html=no
     fi
     if test "$with_http" = ""
     then
       with_http=no 
     fi
     if test "$with_iconv" = ""
     then
       with_iconv=no
     fi
     if test "$with_iso8859x" = ""
     then
       with_iso8859x=no
     fi
     if test "$with_legacy" = ""
     then
       with_legacy=no
     fi
     if test "$with_mem_debug" = ""
     then 
       with_mem_debug=no
     fi
     if test "$with_output" = ""
     then
       with_output=no
     fi
     if test "$with_pattern" = ""
     then
       with_pattern=no
     fi
     if test "$with_push" = ""
     then
       with_push=no
     fi
     if test "$with_python" = ""
     then
       with_python=no
     fi
     if test "$with_reader" = ""
     then
       with_reader=no
     fi
     if test "$with_readline" = ""
     then
       with_readline=no
     fi
     if test "$with_regexps" = ""
     then
       with_regexps=no
     fi
     if test "$with_run_debug" = ""
     then
       with_run_debug=no
     fi
     if test "$with_sax1" = ""
     then
       with_sax1=no
     fi
     if test "$with_schemas" = ""
     then
       with_schemas=no
     fi
     if test "$with_schematron" = ""
     then
       with_schematron=no
     fi
     if test "$with_threads" = ""
     then
       with_threads=no
     fi
     if test "$with_thread_alloc" = ""
     then
       with_thread_alloc=no
    fi
     if test "$with_tree" = ""
     then
       with_tree=no
     fi
     if test "$with_valid" = ""
     then
       with_valid=no
     fi
     if test "$with_writer" = ""
     then
       with_writer=no
     fi
     if test "$with_xinclude" = ""
     then
       with_xinclude=no
     fi
     if test "$with_xpath" = ""
     then
       with_xpath=no
     fi
     if test "$with_xptr" = ""
     then
       with_xptr=no
     fi
     if test "$with_zlib" = ""
     then
       with_zlib=no
     fi
     if test "$with_modules" = ""
     then
       with_modules=no
     fi
 fi
 
 echo Checking zlib
 
 dnl Checks for zlib library.
 
 WITH_ZLIB=0
 if test "$with_zlib" = "no"; then
     echo "Disabling zlib compression support"
 else
     # Don't run pkg-config if with_zlib contains a path.
     if test "x$Z_DIR" = "x"; then
         # Try pkg-config first so that static linking works.
         PKG_CHECK_MODULES([Z],[zlib],
             [WITH_ZLIB=1],
             [ ])
     fi
 
     if test "$WITH_ZLIB" = "0"; then
         AC_CHECK_HEADERS(zlib.h,
             AC_CHECK_LIB(z, gzread,[
                 WITH_ZLIB=1
                 if test "x${Z_DIR}" != "x"; then
                     Z_CFLAGS="-I${Z_DIR}/include"
                     Z_LIBS="-L${Z_DIR}/lib -lz"
                     [case ${host} in
                         *-*-solaris*)
                             Z_LIBS="-L${Z_DIR}/lib -R${Z_DIR}/lib -lz"
                             ;;
                     esac]
                 else
                     Z_LIBS="-lz"
                 fi])
             )
     fi
 fi
 
 AC_SUBST(Z_CFLAGS)
 AC_SUBST(Z_LIBS)
 AC_SUBST(WITH_ZLIB)
 
 echo Checking lzma
 
 dnl Checks for lzma library.
 
 WITH_LZMA=0
 if test "$with_lzma" = "no"; then
     echo "Disabling lzma compression support"
 else
     # Don't run pkg-config if with_lzma contains a path.
     if test "x$LZMA_DIR" = "x"; then
         # Try pkg-config first so that static linking works.
         PKG_CHECK_MODULES([LZMA],[liblzma],
             [WITH_LZMA=1],
             [ ])
     fi
 
     # If pkg-config failed, fall back to AC_CHECK_LIB. This
     # will not pick up the necessary LIBS flags for liblzma's
     # private dependencies, though, so static linking may fail.
     if test "$WITH_LZMA" = "0"; then
         AC_CHECK_HEADERS(lzma.h,
             AC_CHECK_LIB(lzma, lzma_code,[
                 WITH_LZMA=1
                 if test "x${LZMA_DIR}" != "x"; then
                     LZMA_CFLAGS="-I${LZMA_DIR}/include"
                     LZMA_LIBS="-L${LZMA_DIR}/lib -llzma"
                 else
                     LZMA_LIBS="-llzma"
                 fi])
             )
     fi
 fi
 
 AC_SUBST(LZMA_CFLAGS)
 AC_SUBST(LZMA_LIBS)
 AC_SUBST(WITH_LZMA)
 
 CPPFLAGS=${_cppflags}
 LIBS=${_libs}
 
 echo Checking headers
 
 dnl Checks for header files.
 AC_HEADER_DIRENT
 AC_HEADER_STDC
 AC_CHECK_HEADERS([fcntl.h])
 AC_CHECK_HEADERS([unistd.h])
 AC_CHECK_HEADERS([ctype.h])
 AC_CHECK_HEADERS([dirent.h])
 AC_CHECK_HEADERS([errno.h])
 AC_CHECK_HEADERS([malloc.h])
 AC_CHECK_HEADERS([stdarg.h])
 AC_CHECK_HEADERS([sys/stat.h])
 AC_CHECK_HEADERS([sys/types.h])
 AC_CHECK_HEADERS([stdint.h])
 AC_CHECK_HEADERS([inttypes.h])
 AC_CHECK_HEADERS([time.h])
 AC_CHECK_HEADERS([math.h])
 AC_CHECK_HEADERS([limits.h])
 AC_CHECK_HEADERS([float.h])
 AC_CHECK_HEADERS([stdlib.h])
 AC_CHECK_HEADERS([sys/socket.h], [], [],
 [#if HAVE_SYS_TYPES_H
 # include <sys/types.h>
 # endif
 ])
 AC_CHECK_HEADERS([netinet/in.h], [], [],
 [#if HAVE_SYS_TYPES_H
 # include <sys/types.h>
 # endif
 ])
 AC_CHECK_HEADERS([arpa/inet.h], [], [],
 [#if HAVE_SYS_TYPES_H
 # include <sys/types.h>
 # endif
 #if HAVE_ARPA_INET_H
 # include <arpa/inet.h>
 # endif
 ])
 AC_CHECK_HEADERS([netdb.h])
 AC_CHECK_HEADERS([sys/time.h])
 AC_CHECK_HEADERS([sys/select.h])
 AC_CHECK_HEADERS([poll.h])
 AC_CHECK_HEADERS([sys/mman.h])
 AC_CHECK_HEADERS([sys/timeb.h])
 AC_CHECK_HEADERS([signal.h])
 AC_CHECK_HEADERS([arpa/nameser.h], [], [],
 [#if HAVE_SYS_TYPES_H
 # include <sys/types.h>
 # endif
 ])
 AC_CHECK_HEADERS([resolv.h], [], [],
 [#if HAVE_SYS_TYPES_H
 # include <sys/types.h>
 # endif
 #if HAVE_NETINET_IN_H
 # include <netinet/in.h>
 # endif
 #if HAVE_ARPA_NAMESER_H
 # include <arpa/nameser.h>
 # endif
 ])
 AC_CHECK_HEADERS([dl.h])
 AC_CHECK_HEADERS([dlfcn.h])
 
 
 echo Checking types
 
 AC_TYPE_UINT32_T
 
 
 echo Checking libraries
 
 dnl Checks for library functions.
 AC_FUNC_STRFTIME
 AC_CHECK_FUNCS(strftime localtime gettimeofday ftime)
 AC_CHECK_FUNCS(stat signal)
 AC_CHECK_FUNCS(rand rand_r srand time)
 AC_CHECK_FUNCS(isascii mmap munmap putenv)
 
 AH_VERBATIM([HAVE_MUNMAP_AFTER],[/* mmap() is no good without munmap() */
 #if defined(HAVE_MMAP) && !defined(HAVE_MUNMAP)
 #  undef /**/ HAVE_MMAP
 #endif])
 
 dnl Checking for va_copy availability
 AC_MSG_CHECKING([for va_copy])
 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
 va_list ap1,ap2;]], [[va_copy(ap1,ap2);]])],
 have_va_copy=yes,
 have_va_copy=no)
 AC_MSG_RESULT($have_va_copy)
 if test x"$have_va_copy" = x"yes"; then
     AC_DEFINE(HAVE_VA_COPY,1,[Whether va_copy() is available])
 else
     AC_MSG_CHECKING([for __va_copy])
     AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
     va_list ap1,ap2;]], [[__va_copy(ap1,ap2);]])],
     have___va_copy=yes,
     have___va_copy=no)
     AC_MSG_RESULT($have___va_copy)
     if test x"$have___va_copy" = x"yes"; then
         AC_DEFINE(HAVE___VA_COPY,1,[Whether __va_copy() is available])
     fi
 fi
 
 dnl Checking whether va_list is an array type
 AC_MSG_CHECKING([whether va_list is an array type])
 AC_TRY_COMPILE2([
 #include <stdarg.h>
 void a(va_list * ap) {}],[
 va_list ap1, ap2; a(&ap1); ap2 = (va_list) ap1],[
   AC_MSG_RESULT(no)],[
   AC_MSG_RESULT(yes)
   AC_DEFINE([VA_LIST_IS_ARRAY], [1],[Define if va_list is an array type])])
 
 dnl Checks for inet libraries:
 AC_SEARCH_LIBS(gethostent, [nsl])
 AC_SEARCH_LIBS(setsockopt, [socket net network])
 AC_SEARCH_LIBS(connect, [inet])
 
 dnl Determine what socket length (socklen_t) data type is
 AC_MSG_CHECKING([for type of socket length (socklen_t)])
 AC_TRY_COMPILE2([
 #include <stddef.h>
 #include <sys/types.h>
 #include <sys/socket.h>],[
 (void)getsockopt (1, 1, 1, NULL, (socklen_t *)NULL)],[
   AC_MSG_RESULT(socklen_t *)
   XML_SOCKLEN_T=socklen_t],[
   AC_TRY_COMPILE2([
 #include <stddef.h>
 #include <sys/types.h>
 #include <sys/socket.h>],[
 (void)getsockopt (1, 1, 1, NULL, (size_t *)NULL)],[
     AC_MSG_RESULT(size_t *)
     XML_SOCKLEN_T=size_t],[
     AC_TRY_COMPILE2([
 #include <stddef.h>
 #include <sys/types.h>
 #include <sys/socket.h>],[
 (void)getsockopt (1, 1, 1, NULL, (int *)NULL)],[
       AC_MSG_RESULT(int *)
       XML_SOCKLEN_T=int],[
       AC_MSG_WARN(could not determine)
       XML_SOCKLEN_T="int"])])])
 AC_DEFINE_UNQUOTED(XML_SOCKLEN_T, $XML_SOCKLEN_T, [Determine what socket length (socklen_t) data type is])
 
 dnl Checking if gethostbyname() argument is const.
 AC_MSG_CHECKING([for const gethostbyname() argument])
 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
     [[(void)gethostbyname((const char *)"");]])],
 have_gethostbyname_const_arg=yes,
 have_gethostbyname_const_arg=no)
 AC_MSG_RESULT($have_gethostbyname_const_arg)
 if test x"$have_gethostbyname_const_arg" = x"yes"; then
     AC_DEFINE([GETHOSTBYNAME_ARG_CAST], [],
       [Type cast for the gethostbyname() argument])
 else
     AC_DEFINE([GETHOSTBYNAME_ARG_CAST], [(char *)],
       [Type cast for the gethostbyname() argument])
 fi
 
 dnl Checking if send() second argument is const.
 AC_MSG_CHECKING([for const send() second argument])
 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 #include <sys/socket.h>]],
     [[(void)send(1,(const char *)"",1,1);]])],
 have_send_const_arg2=yes,
 have_send_const_arg2=no)
 AC_MSG_RESULT($have_send_const_arg2)
 if test x"$have_send_const_arg2" = x"yes"; then
     AC_DEFINE([SEND_ARG2_CAST], [],
       [Type cast for the send() function 2nd arg])
 else
     AC_DEFINE([SEND_ARG2_CAST], [(char *)],
       [Type cast for the send() function 2nd arg])
 fi
 
 dnl ***********************Checking for availability of IPv6*******************
 
 AC_MSG_CHECKING([whether to enable IPv6])
 AC_ARG_ENABLE(ipv6, [  --enable-ipv6[[=yes/no]]  enables compilation of IPv6 code [[default=yes]]],, enable_ipv6=yes)
 if test "$with_minimum" = "yes"
 then
     enable_ipv6=no
 fi
 if test $enable_ipv6 = yes; then
   have_ipv6=no
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #   include <sys/types.h>
 #   include <sys/socket.h>
     ]], [[
     struct sockaddr_storage ss;
     socket(AF_INET6, SOCK_STREAM, 0)
     ]])],
     have_ipv6=yes,
     have_ipv6=no
   )
   AC_MSG_RESULT($have_ipv6)
 
   if test $have_ipv6 = yes; then
     AC_DEFINE([SUPPORT_IP6], [], [Support for IPv6])
     have_broken_ss_family=no
 
     dnl *********************************************************************
     dnl on some platforms (like AIX 5L), the structure sockaddr doesn't have
     dnl a ss_family member, but rather __ss_family. Let's detect that
     dnl and define the HAVE_BROKEN_SS_FAMILY when we are on one of these
     dnl platforms.  However, we should only do this if ss_family is not
     dnl present.
     dnl ********************************************************************
     AC_MSG_CHECKING([struct sockaddr::ss_family])
     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #     include <sys/types.h>
 #     include <sys/socket.h>
       ]], [[
       struct sockaddr_storage ss ;
       ss.ss_family = 0 ;
       ]])],
       have_ss_family=yes,
       have_ss_family=no
     )
     AC_MSG_RESULT($have_ss_family)
     if test x$have_ss_family = xno ; then
       AC_MSG_CHECKING([broken struct sockaddr::ss_family])
       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #       include <sys/types.h>
 #       include <sys/socket.h>
         ]], [[
         struct sockaddr_storage ss ;
         ss.__ss_family = 0 ;
         ]])],
         have_broken_ss_family=yes,
         have_broken_ss_family=no
       )
       AC_MSG_RESULT($have_broken_ss_family)
       if test x$have_broken_ss_family = xyes ; then
         AC_DEFINE(HAVE_BROKEN_SS_FAMILY, [],
 	  [Whether struct sockaddr::__ss_family exists]) 
         AC_DEFINE(ss_family, __ss_family,
 	  [ss_family is not defined here, use __ss_family instead])
       else
         AC_MSG_WARN(ss_family and __ss_family not found)
       fi
     fi
 
     have_getaddrinfo=no
     AC_CHECK_FUNC(getaddrinfo, have_getaddrinfo=yes)
     if test $have_getaddrinfo != yes; then
       for lib in bsd socket inet; do
         AC_CHECK_LIB($lib, getaddrinfo, [LIBS="$LIBS -l$lib";have_getaddrinfo=yes;break])
       done
     fi
 
     if test $have_getaddrinfo = yes; then
       AC_DEFINE([HAVE_GETADDRINFO], [], [Define if getaddrinfo is there])
     fi
   fi
 fi 
 
 dnl ******************************End IPv6 checks******************************
 
 dnl Checks for isnan in libm if not in libc
 AC_CHECK_FUNC(isnan, AC_DEFINE([HAVE_ISNAN],[], [Define if isnan is there]) , AC_CHECK_LIB(m, isnan,
   [AC_DEFINE([HAVE_ISNAN],[], [Define if isnan is there])]))
 
 AC_CHECK_FUNC(isinf, AC_DEFINE([HAVE_ISINF], [], [Define if isinf is there]) , AC_CHECK_LIB(m, isinf,
   [AC_DEFINE([HAVE_ISINF], [], [Define if isinf is there])]))
 
 XML_LIBDIR='-L${libdir}'
 XML_INCLUDEDIR='-I${includedir}/libxml2'
 
 dnl
 dnl Extra flags
 dnl
 XML_CFLAGS=""
 RDL_LIBS=""
 
 dnl
 dnl Workaround for native compilers
 dnl  HP  : http://bugs.gnome.org/db/31/3163.html
 dnl  DEC : Enable NaN/Inf
 dnl
 if test "${GCC}" != "yes" ; then
     case "${host}" in
           hppa*-*-hpux* )
 	       EXTRA_CFLAGS="${EXTRA_CFLAGS} -Wp,-H30000"
 	       ;;
           *-dec-osf* )
                EXTRA_CFLAGS="${EXTRA_CFLAGS} -ieee"
                ;;
 	  alpha*-*-linux* )
 	       EXTRA_CFLAGS="${EXTRA_CFLAGS} -ieee"
 	       ;;
     esac
 else
     if test "$with_fexceptions" = "yes"
     then
         #
 	# Not activated by default because this inflates the code size
 	# Used to allow propagation of C++ exceptions through the library
 	#
 	EXTRA_CFLAGS="${EXTRA_CFLAGS} -fexceptions"
     fi
 
     # warnings we'd like to see
     EXTRA_CFLAGS="${EXTRA_CFLAGS} -pedantic -Wall -Wextra -Wshadow -Wpointer-arith -Wcast-align -Wwrite-strings -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Winline -Wredundant-decls"
     # warnings we'd like to supress
     EXTRA_CFLAGS="${EXTRA_CFLAGS} -Wno-long-long -Wno-format-extra-args -Wno-array-bounds"
     case "${host}" in
           alpha*-*-linux* )
 	       EXTRA_CFLAGS="${EXTRA_CFLAGS} -mieee"
 	       ;;
 	  alpha*-*-osf* )
 	       EXTRA_CFLAGS="${EXTRA_CFLAGS} -mieee"
 	       ;;
     esac
 fi
 case ${host} in
     *-*-solaris*)
         XML_LIBDIR="${XML_LIBDIR} -R${libdir}"
         ;;
     hppa*-hp-mpeix)
         NEED_TRIO=1
 	;;
     *-*-mingw* | *-*-cygwin* | *-*-msvc* )
         # If the host is Windows, and shared libraries are disabled, we
         # need to add -DLIBXML_STATIC to EXTRA_CFLAGS in order for linking to
         # work properly (without it, xmlexports.h would force the use of
         # DLL imports, which obviously aren't present in a static
         # library).
         if test "x$enable_shared" = "xno"; then
             XML_CFLAGS="$XML_CFLAGS -DLIBXML_STATIC"
             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLIBXML_STATIC"
         fi
         ;;
 esac
 
 
 dnl
 dnl check for python
 dnl
 
 PYTHON_VERSION=
 PYTHON_INCLUDES=
 PYTHON_SITE_PACKAGES=
 PYTHON_TESTS=
 pythondir=
 if test "$with_python" != "no" ; then
     if test -x "$with_python/bin/python"
     then
         echo Found python in $with_python/bin/python
         PYTHON="$with_python/bin/python"
     else
         if test -x "$with_python/python.exe"
         then
             echo Found python in $with_python/python.exe
             PYTHON="$with_python/python.exe"
         else
             if test -x "$with_python"
             then
                 echo Found python in $with_python
                 PYTHON="$with_python"
             else
                 if test -x "$PYTHON"
                 then
                     echo Found python in environment PYTHON=$PYTHON
                     with_python=`$PYTHON -c "import sys; print(sys.exec_prefix)"`
                 else
                     AC_PATH_PROG(PYTHON, python python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 python1.6 python1.5)
 		fi
 	    fi
 	fi
     fi
     if test "$PYTHON" != ""
     then
         PYTHON_VERSION=`$PYTHON -c "from distutils import sysconfig; print(sysconfig.get_python_version())"`
 	PYTHON_INCLUDES=`$PYTHON -c "from distutils import sysconfig; print(sysconfig.get_python_inc())"`
 # does not work as it produce a /usr/lib/python path instead of/usr/lib64/python
 #
 #	PYTHON_SITE_PACKAGES=`$PYTHON -c "from distutils import sysconfig; print(sysconfig.get_python_lib())"`
 	echo Found Python version $PYTHON_VERSION
     fi
     if test "$PYTHON_VERSION" != "" -a "$PYTHON_INCLUDES" = ""
     then
 	if test -r $with_python/include/python$PYTHON_VERSION/Python.h
 	then
 	    PYTHON_INCLUDES=$with_python/include/python$PYTHON_VERSION
 	else
 	    if test -r $prefix/include/python$PYTHON_VERSION/Python.h
 	    then
 	        PYTHON_INCLUDES=$prefix/include/python$PYTHON_VERSION
 	    else
 		if test -r /usr/include/python$PYTHON_VERSION/Python.h
 		then
 		    PYTHON_INCLUDES=/usr/include/python$PYTHON_VERSION
 		else
 	            if test -r $with_python/include/Python.h
 	            then
 	                PYTHON_INCLUDES=$with_python/include
 	            else
 		        echo could not find python$PYTHON_VERSION/Python.h or $with_python/include/Python.h
 		    fi
 		fi
 	    fi
 	fi
     fi
     if test "$with_python_install_dir" != ""
     then
 	PYTHON_SITE_PACKAGES="$with_python_install_dir"
     fi
     if test "$PYTHON_VERSION" != "" -a "$PYTHON_SITE_PACKAGES" = ""
     then
 	if test -d $libdir/python$PYTHON_VERSION/site-packages
 	then
 	    PYTHON_SITE_PACKAGES=$libdir/python$PYTHON_VERSION/site-packages
 	else
 	    if test -d $with_python/lib/site-packages
 	    then
 		PYTHON_SITE_PACKAGES=$with_python/lib/site-packages
 	    else
 		PYTHON_SITE_PACKAGES=`$PYTHON -c "from distutils import sysconfig; print(sysconfig.get_python_lib())"`
 	    fi
 	fi
     fi
     pythondir='$(PYTHON_SITE_PACKAGES)'
     PYTHON_LIBS=`python$PYTHON_VERSION-config --ldflags`
 else
     PYTHON=
 fi
 AM_CONDITIONAL(WITH_PYTHON, test "$PYTHON_INCLUDES" != "")
 if test "$PYTHON_INCLUDES" != ""
 then
     PYTHON_SUBDIR=python
 else
     PYTHON_SUBDIR=
 fi
 AC_SUBST(pythondir)
 AC_SUBST(PYTHON_SUBDIR)
 AC_SUBST(PYTHON_LIBS)
 
 dnl check for dso support
 WITH_MODULES=0
 TEST_MODULES=
 
 if test "$with_modules" != "no" ; then
  case "$host" in
   *-*-cygwin*)
   MODULE_EXTENSION=".dll"
   AC_CHECK_LIB(cygwin, dlopen, [
     WITH_MODULES=1
     MODULE_PLATFORM_LIBS=
     AC_DEFINE([HAVE_DLOPEN], [], [Have dlopen based dso])
   ])
   ;;
   *-*-mingw*)
   MODULE_EXTENSION=".dll"
   WITH_MODULES=1
   ;;
   *)
   AC_CHECK_FUNC(shl_load, libxml_have_shl_load=yes, [
     AC_CHECK_LIB(dld, shl_load, [
       MODULE_PLATFORM_LIBS="-ldld"
       libxml_have_shl_load=yes], [
       AC_CHECK_FUNC(dlopen, libxml_have_dlopen=yes, [
         AC_CHECK_LIB(dl, dlopen, [
           MODULE_PLATFORM_LIBS="-ldl"
           libxml_have_dlopen=yes])])])])
 
   if test "${libxml_have_shl_load}" = "yes"; then
     MODULE_EXTENSION=".sl"
     WITH_MODULES=1
     AC_DEFINE([HAVE_SHLLOAD], [], [Have shl_load based dso])
   fi
  
   if test "${libxml_have_dlopen}" = "yes"; then
     case "${host}" in
       *-*-hpux* )
 	MODULE_EXTENSION=".sl"
 	;;
       * )
 	MODULE_EXTENSION=".so"
 	;;
     esac
 
     WITH_MODULES=1
     AC_DEFINE([HAVE_DLOPEN], [], [Have dlopen based dso])
   fi
  ;;
  esac
 fi
 
 if test "${WITH_MODULES}" = "1"; then
   TEST_MODULES="ModuleTests"
 fi  
 
 AC_SUBST(WITH_MODULES)
 AC_SUBST(MODULE_PLATFORM_LIBS)
 AC_SUBST(MODULE_EXTENSION)
 AC_SUBST(TEST_MODULES)
 
 dnl
 dnl Tester makes use of readline if present
 dnl
 
 dnl
 dnl specific tests to setup DV and Bill's devel environments with debug etc ...
 dnl (-Wunreachable-code)
 dnl
 if [[ "${LOGNAME}" = "veillard" -a "`pwd`" = "/u/veillard/XML" ]] || \
    [[ "${LOGNAME}" = "veillard" -a "`pwd`" = "/home/veillard/libxml2" ]] || \
    [[ "${LOGNAME}" = "bill" -a "`pwd`" = "/home/bill/gnomesvn/libxml2" ]]
    then
     if test "$with_minimum" != "yes"
     then
 	if test "${with_mem_debug}" = "" ; then
 	    echo Activating memory debugging
 	    with_mem_debug="yes"
 	    with_run_debug="yes"
 	fi
 	if test "${with_docbook}" = "" ; then
 	    with_docbook="yes"
 	fi
     fi
     if test "${GCC}" = "yes" ; then
     EXTRA_CFLAGS="-g -O -pedantic -W -Wformat -Wno-format-extra-args -Wunused -Wimplicit -Wreturn-type -Wswitch -Wcomment -Wtrigraphs -Wchar-subscripts -Wuninitialized -Wparentheses -Wshadow -Wpointer-arith -Wcast-align -Wwrite-strings -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Winline -Wredundant-decls -Wall"
     fi
     STATIC_BINARIES="-static"
 dnl -Wcast-qual -ansi
 else
     STATIC_BINARIES=
 fi
 AC_SUBST(STATIC_BINARIES)
 
 dnl
 dnl Check for trio string functions
 dnl
 
 if test "${NEED_TRIO}" = "1" ; then
     echo Adding trio library for string functions
     WITH_TRIO=1
 else    
     WITH_TRIO=0
 fi
 AM_CONDITIONAL(WITH_TRIO_SOURCES, test "${NEED_TRIO}" = "1")
 AC_SUBST(WITH_TRIO)
 
 dnl
 dnl Allow to enable/disable various pieces
 dnl
 echo Checking configuration requirements
 
 dnl
 dnl Thread-related stuff
 dnl
 THREAD_LIBS=""
 BASE_THREAD_LIBS=""
 WITH_THREADS=0
 THREAD_CFLAGS=""
 TEST_THREADS=""
 THREADS_W32=""
 WITH_THREAD_ALLOC=0
 
 if test "$with_threads" = "no" ; then
     echo Disabling multithreaded support
 else
     echo Enabling multithreaded support
 
     dnl Default to native threads on Windows
     case $host_os in
        *mingw*) if test "$with_threads" != "pthread" && test "$with_threads" != "no"; then
                WITH_THREADS="1"
                THREADS_W32="1"
                THREAD_CFLAGS="$THREAD_CFLAGS -DHAVE_WIN32_THREADS"
            fi
        ;;
     esac
 
     dnl Use pthread by default in other cases
     if test -z "$THREADS_W32"; then
         if test "$with_threads" = "pthread" || test "$with_threads" = "" || test "$with_threads" = "yes" ; then
             AC_CHECK_HEADER(pthread.h,
                 AC_CHECK_LIB(pthread, pthread_join,[
                 THREAD_LIBS="-lpthread"
                 AC_DEFINE([HAVE_LIBPTHREAD], [], [Define if pthread library is there (-lpthread)])
                 AC_DEFINE([HAVE_PTHREAD_H], [], [Define if <pthread.h> is there])
                 WITH_THREADS="1"]))
         fi
     fi
 
     case $host_os in
        *cygwin*) THREAD_LIBS=""
        ;;
        *beos*) WITH_THREADS="1"
 	   THREAD_CFLAGS="$THREAD_CFLAGS -DHAVE_BEOS_THREADS"
        ;;
        *linux*)
            if test "${GCC}" = "yes" ; then
 	       GCC_VERSION=`${CC} --version | head -1 | awk '{print $3}'`
 	       GCC_MAJOR=`echo ${GCC_VERSION} | sed 's+\..*++'`
 	       GCC_MEDIUM=`echo ${GCC_VERSION} | sed 's+[[0-9]]*\.++' | sed 's+\..*++'`
 	       if test "${THREAD_LIBS}" = "-lpthread" ; then
 	           if expr ${GCC_MEDIUM} \> 2 \& ${GCC_MAJOR} = 3 > /dev/null
 		   then
 		       THREAD_LIBS=""
 		       BASE_THREAD_LIBS="-lpthread"
 		   else
 		   if expr ${GCC_MAJOR} \> 3 > /dev/null
 		   then
 		       THREAD_LIBS=""
 		       BASE_THREAD_LIBS="-lpthread"
 		   else
 		       echo old GCC disabling weak symbols for pthread
 		   fi
 		   fi
 	       fi
 	   fi
        ;;
     esac
     if test "$WITH_THREADS" = "1" ; then
 	THREAD_CFLAGS="$THREAD_CFLAGS -D_REENTRANT"
 	TEST_THREADS="Threadtests"
     fi
 fi
 if test "$with_thread_alloc" = "yes" -a "$WITH_THREADS" = "1" ; then
     WITH_THREAD_ALLOC=1
 fi
 
 AC_SUBST(THREAD_LIBS)
 AC_SUBST(BASE_THREAD_LIBS)
 AC_SUBST(WITH_THREADS)
 AC_SUBST(THREAD_CFLAGS)
 AC_SUBST(TEST_THREADS)
 AC_SUBST(WITH_THREAD_ALLOC)
 AM_CONDITIONAL([THREADS_W32],[test -n "$THREADS_W32"])
 
 dnl
 dnl xmllint shell history
 dnl
 if test "$with_history" = "yes" ; then
     echo Enabling xmllint shell history
     dnl check for terminal library. this is a very cool solution
     dnl from octave's configure.in
     unset tcap
     for termlib in ncurses curses termcap terminfo termlib; do
 	AC_CHECK_LIB(${termlib}, tputs, [tcap="-l$termlib"])
 	test -n "$tcap" && break
     done
 
     AC_CHECK_HEADER(readline/history.h,
 	AC_CHECK_LIB(history, append_history,[
 	   RDL_LIBS="-lhistory"
 	   AC_DEFINE([HAVE_LIBHISTORY], [], [Define if history library is there (-lhistory)])]))
     AC_CHECK_HEADER(readline/readline.h,
 	AC_CHECK_LIB(readline, readline,[
 	   RDL_LIBS="-lreadline $RDL_LIBS $tcap"
 	   AC_DEFINE([HAVE_LIBREADLINE], [], [Define if readline library is there (-lreadline)])], , $tcap))
     if test -n "$RDL_DIR" -a -n "$RDL_LIBS"; then
 	CPPFLAGS="$CPPFLAGS -I${RDL_DIR}/include"
 	RDL_LIBS="-L${RDL_DIR}/lib $RDL_LIBS"
     fi
 fi
 
 dnl
 dnl Tree functions
 dnl
 if test "$with_tree" = "no" ; then
     echo Disabling DOM like tree manipulation APIs
     WITH_TREE=0
 else    
     WITH_TREE=1
 fi
 AC_SUBST(WITH_TREE)
 
 if test "$with_ftp" = "no" ; then
     echo Disabling FTP support
     WITH_FTP=0
     FTP_OBJ=
 else    
     WITH_FTP=1
     FTP_OBJ=nanoftp.o
 fi
 AC_SUBST(WITH_FTP)
 AC_SUBST(FTP_OBJ)
 
 if test "$with_http" = "no" ; then
     echo Disabling HTTP support
     WITH_HTTP=0
     HTTP_OBJ=
 else    
     WITH_HTTP=1
     HTTP_OBJ=nanohttp.o
 fi
 AC_SUBST(WITH_HTTP)
 AC_SUBST(HTTP_OBJ)
 
 if test "$with_legacy" = "no" ; then
     echo Disabling deprecated APIs
     WITH_LEGACY=0
 else    
     WITH_LEGACY=1
 fi
 AC_SUBST(WITH_LEGACY)
 
 if test "$with_reader" = "no" ; then
     echo Disabling the xmlReader parsing interface
     WITH_READER=0
     READER_TEST=
 else    
     WITH_READER=1
     READER_TEST=Readertests
     if test "$with_push" = "no" ; then
         echo xmlReader requires Push interface - enabling it
 	with_push=yes
     fi
 fi
 AC_SUBST(WITH_READER)
 AC_SUBST(READER_TEST)
 
 if test "$with_writer" = "no" ; then
     echo Disabling the xmlWriter saving interface
     WITH_WRITER=0
 #    WRITER_TEST=
 else    
     WITH_WRITER=1
 #    WRITER_TEST=Writertests
     if test "$with_push" = "no" ; then
         echo xmlWriter requires Push interface - enabling it
 	with_push=yes
     fi
     if test "$with_output" = "no" ; then
         echo xmlWriter requires Output interface - enabling it
 	with_output=yes
     fi
 fi
 AC_SUBST(WITH_WRITER)
 #AC_SUBST(WRITER_TEST)
 
 if test "$with_pattern" = "no" ; then
     echo Disabling the xmlPattern parsing interface
     WITH_PATTERN=0
     TEST_PATTERN=
 else    
     WITH_PATTERN=1
     TEST_PATTERN=Patterntests
 fi
 AC_SUBST(WITH_PATTERN)
 AC_SUBST(TEST_PATTERN)
 
 if test "$with_sax1" = "no" ; then
     echo Disabling the older SAX1 interface
     WITH_SAX1=0
     TEST_SAX=
 else    
     WITH_SAX1=1
     TEST_SAX=SAXtests
 fi
 AC_SUBST(WITH_SAX1)
 AM_CONDITIONAL(WITH_SAX1_SOURCES, test "${WITH_TRIO}" = "1")
 AC_SUBST(TEST_SAX)
 
 if test "$with_push" = "no" ; then
     echo Disabling the PUSH parser interfaces
     WITH_PUSH=0
     TEST_PUSH=
 else    
     WITH_PUSH=1
     TEST_PUSH="XMLPushtests"
 fi
 AC_SUBST(WITH_PUSH)
 AC_SUBST(TEST_PUSH)
 
 if test "$with_html" = "no" ; then
     echo Disabling HTML support
     WITH_HTML=0
     HTML_OBJ=
     TEST_HTML=
 else    
     WITH_HTML=1
     HTML_OBJ="HTMLparser.o HTMLtree.o"
     TEST_HTML=HTMLtests
     if test "$with_push" != "no" ; then
         TEST_PHTML=HTMLPushtests
     else
         TEST_PHTML=
     fi
 fi
 AC_SUBST(WITH_HTML)
 AC_SUBST(HTML_OBJ)
 AC_SUBST(TEST_HTML)
 AC_SUBST(TEST_PHTML)
 
 if test "$with_valid" = "no" ; then
     echo Disabling DTD validation support
     WITH_VALID=0
     TEST_VALID=
     TEST_VTIME=
 else    
     WITH_VALID=1
     TEST_VALID=Validtests
     TEST_VTIME=VTimingtests
 fi
 AC_SUBST(WITH_VALID)
 AC_SUBST(TEST_VALID)
 AC_SUBST(TEST_VTIME)
 
 if test "$with_catalog" = "no" ; then
     echo Disabling Catalog support
     WITH_CATALOG=0
     CATALOG_OBJ=
     TEST_CATALOG=
 else    
     WITH_CATALOG=1
     CATALOG_OBJ="catalog.o"
     TEST_CATALOG=Catatests
 fi
 AC_SUBST(WITH_CATALOG)
 AC_SUBST(CATALOG_OBJ)
 AC_SUBST(TEST_CATALOG)
 
 if test "$with_docbook" = "no" ; then
     echo Disabling Docbook support
     WITH_DOCB=0
     DOCB_OBJ=
 else    
     WITH_DOCB=1
     DOCB_OBJ="DOCBparser.o"
 fi
 AC_SUBST(WITH_DOCB)
 AC_SUBST(DOCB_OBJ)
 
 
 if test "$with_xptr" = "no" ; then
     echo Disabling XPointer support
     WITH_XPTR=0
     XPTR_OBJ=
     TEST_XPTR=
 else    
     WITH_XPTR=1
     XPTR_OBJ=xpointer.o
     TEST_XPTR=XPtrtests
     if test "$with_xpath" = "no" ; then
         echo XPointer requires XPath support - enabling it
 	with_xpath=yes
     fi
 fi
 AC_SUBST(WITH_XPTR)
 AC_SUBST(XPTR_OBJ)
 AC_SUBST(TEST_XPTR)
 
 if test "$with_c14n" = "no" ; then
     echo Disabling C14N support
     WITH_C14N=0
     C14N_OBJ=
     TEST_C14N=
 else    
     WITH_C14N=1
     C14N_OBJ="c14n.c"
     TEST_C14N=C14Ntests
     if test "$with_xpath" = "no" ; then
         echo C14N requires XPath support - enabling it
 	with_xpath=yes
     fi
 fi
 AC_SUBST(WITH_C14N)
 AC_SUBST(C14N_OBJ)
 AC_SUBST(TEST_C14N)
 
 if test "$with_xinclude" = "no" ; then
     echo Disabling XInclude support
     WITH_XINCLUDE=0
     XINCLUDE_OBJ=
     with_xinclude="no"
     TEST_XINCLUDE=
 else    
     WITH_XINCLUDE=1
     XINCLUDE_OBJ=xinclude.o
     TEST_XINCLUDE=XIncludetests
     if test "$with_xpath" = "no" ; then
         echo XInclude requires XPath support - enabling it
 	with_xpath=yes
     fi
 fi
 AC_SUBST(WITH_XINCLUDE)
 AC_SUBST(XINCLUDE_OBJ)
 AC_SUBST(TEST_XINCLUDE)
 
 if test "$with_xptr" = "" -a "$with_xpath" = "no" ; then
     with_xptr=no
 fi
 
 if test "$with_schematron" = "" -a "$with_xpath" = "no" ; then
     with_schematron=no
 fi
 
 if test "$with_schematron" = "no" ; then
     echo "Disabling Schematron support"
     WITH_SCHEMATRON=0
     TEST_SCHEMATRON=
 else 
     echo "Enabled Schematron support"
     WITH_SCHEMATRON=1
     TEST_SCHEMATRON="Schematrontests"
     with_xpath=yes
     with_pattern=yes
     with_schematron=yes
 fi
 AC_SUBST(WITH_SCHEMATRON)
 AC_SUBST(TEST_SCHEMATRON)
 
 if test "$with_xpath" = "no" ; then
     echo Disabling XPATH support
     WITH_XPATH=0
     XPATH_OBJ=
     TEST_XPATH=
 else    
     WITH_XPATH=1
     XPATH_OBJ=xpath.o
     TEST_XPATH=XPathtests
 fi
 AC_SUBST(WITH_XPATH)
 AC_SUBST(XPATH_OBJ)
 AC_SUBST(TEST_XPATH)
 
 dnl
 dnl output functions
 dnl
 if test "$with_output" = "no" ; then
     echo Disabling serialization/saving support
     WITH_OUTPUT=0
 else    
     WITH_OUTPUT=1
 fi
 AC_SUBST(WITH_OUTPUT)
 
 WITH_ICONV=0
 if test "$with_iconv" = "no" ; then
     echo Disabling ICONV support
 else
     if test "$with_iconv" != "yes" -a "$with_iconv" != "" ; then
 	CPPFLAGS="${CPPFLAGS} -I$with_iconv/include"
 	# Export this since our headers include iconv.h
 	XML_INCLUDEDIR="${XML_INCLUDEDIR} -I$with_iconv/include"
 	ICONV_LIBS="-L$with_iconv/lib"
     fi
 
     AC_CHECK_HEADER(iconv.h,
 	AC_MSG_CHECKING(for iconv)
 	AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
 #include <iconv.h>]],[[
 iconv_t cd = iconv_open ("","");
 iconv (cd, NULL, NULL, NULL, NULL);]])],[
 	    AC_MSG_RESULT(yes)
 	    WITH_ICONV=1],[
 	    AC_MSG_RESULT(no)
 	    AC_MSG_CHECKING(for iconv in -liconv)
 
 	    _ldflags="${LDFLAGS}"
 	    _libs="${LIBS}"
 	    LDFLAGS="${LDFLAGS} ${ICONV_LIBS}"
 	    LIBS="${LIBS} -liconv"
 
 	    AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
 #include <iconv.h>]],[[
 iconv_t cd = iconv_open ("","");
 iconv (cd, NULL, NULL, NULL, NULL);]])],[
 		AC_MSG_RESULT(yes)
 		WITH_ICONV=1
 		ICONV_LIBS="${ICONV_LIBS} -liconv"
 		LIBS="${_libs}"
 		LDFLAGS="${_ldflags}"],[
 		AC_MSG_RESULT(no)
 		LIBS="${_libs}"
 		LDFLAGS="${_ldflags}"])]))
 
 	if test "$WITH_ICONV" = "1" ; then
 		AC_MSG_CHECKING([for iconv declaration])
 		AC_CACHE_VAL(xml_cv_iconv_arg2, [
 			AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
 #include <iconv.h>
 extern
 #ifdef __cplusplus
 "C"
 #endif
 #if defined(__STDC__) || defined(__cplusplus)
 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
 #else
 size_t iconv();
 #endif
 ]], [])], xml_cv_iconv_arg2="", xml_cv_iconv_arg2="const")])
 
 		xml_cv_iconv_decl="extern size_t iconv (iconv_t cd, $xml_cv_iconv_arg2 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"
 		AC_MSG_RESULT([${xml_xxx:-
 	}$xml_cv_iconv_decl])
 		AC_DEFINE_UNQUOTED(ICONV_CONST, $xml_cv_iconv_arg2,
 			[Define as const if the declaration of iconv() needs const.])
 	fi
 fi
 case "$host" in
 	*mingw*) M_LIBS=""
 	;;
 	*beos*) M_LIBS=""
 	;;
         *haiku*) M_LIBS=""
         ;;
 	*) M_LIBS="-lm"
 	;;
 esac
 AC_SUBST(WITH_ICONV)
 
 WITH_ICU=0
 ICU_LIBS=""
 if test "$with_icu" != "yes" ; then
     echo Disabling ICU support
 else
     # Try pkg-config first so that static linking works.
     # If this succeeeds, we ignore the WITH_ICU directory.
     PKG_CHECK_MODULES([ICU],[icu-i18n],
         [have_libicu=yes],
         [have_libicu=no])
 
     # If pkg-config failed, fall back to AC_CHECK_LIB. This
     # will not pick up the necessary LIBS flags for liblzma's
     # private dependencies, though, so static linking may fail.
     if test "x$have_libicu" = "xno"; then
         ICU_CONFIG=icu-config
         if ${ICU_CONFIG} --cflags >/dev/null 2>&1
         then
             ICU_LIBS=`${ICU_CONFIG} --ldflags`
             have_libicu=yes
             echo Enabling ICU support
         else
             if test "$with_icu" != "yes" -a "$with_iconv" != "" ; then
                 CPPFLAGS="${CPPFLAGS} -I$with_icu"
                 # Export this since our headers include icu.h
                 XML_INCLUDEDIR="${XML_INCLUDEDIR} -I$with_icu"
             fi
 
             AC_CHECK_HEADER(unicode/ucnv.h,
             AC_MSG_CHECKING(for icu)
             AC_TRY_LINK([#include <unicode/ucnv.h>],[
         UConverter *utf = ucnv_open("UTF-8", NULL);],[
                 AC_MSG_RESULT(yes)
                 have_libicu=yes],[
                 AC_MSG_RESULT(no)
                 AC_MSG_CHECKING(for icu in -licucore)
 
                 _ldflags="${LDFLAGS}"
                 _libs="${LIBS}"
                 LDFLAGS="${LDFLAGS} ${ICU_LIBS}"
                 LIBS="${LIBS} -licucore"
 
                 AC_TRY_LINK([#include <unicode/ucnv.h>],[
         UConverter *utf = ucnv_open("UTF-8", NULL);],[
                     AC_MSG_RESULT(yes)
                     have_libicu=yes
                     ICU_LIBS="${ICU_LIBS} -licucore"
                     LIBS="${_libs}"
                     LDFLAGS="${_ldflags}"],[
                     AC_MSG_RESULT(no)
                     LIBS="${_libs}"
                 LDFLAGS="${_ldflags}"])]))
         fi
     fi
 
     # Found the library via either method?
     if test "x$have_libicu" = "xyes"; then
         WITH_ICU=1
     fi
 fi
 XML_LIBS="-lxml2 $Z_LIBS $LZMA_LIBS $THREAD_LIBS $ICONV_LIBS $ICU_LIBS $M_LIBS $LIBS"
 XML_LIBTOOLLIBS="libxml2.la"
 AC_SUBST(WITH_ICU)
 
 WITH_ISO8859X=1
 if test "$WITH_ICONV" != "1" ; then
 if test "$with_iso8859x" = "no" ; then
     echo Disabling ISO8859X support
     WITH_ISO8859X=0
 fi
 fi
 AC_SUBST(WITH_ISO8859X)
 
 if test "$with_schemas" = "no" ; then
     echo "Disabling Schemas/Relax-NG support"
     WITH_SCHEMAS=0
     TEST_SCHEMAS=
 else    
     echo "Enabled Schemas/Relax-NG support"
     WITH_SCHEMAS=1
     TEST_SCHEMAS="Schemastests Relaxtests"
     if test "$PYTHON_INCLUDES" != "" ; then
         PYTHON_TESTS="$PYTHON_TESTS RelaxNGPythonTests SchemasPythonTests"
     fi
     with_regexps=yes
 fi
 AC_SUBST(WITH_SCHEMAS)
 AC_SUBST(TEST_SCHEMAS)
 
 if test "$with_regexps" = "no" ; then
     echo Disabling Regexps support
     WITH_REGEXPS=0
     TEST_REGEXPS=
 else    
     WITH_REGEXPS=1
     TEST_REGEXPS="Regexptests Automatatests"
 fi
 AC_SUBST(WITH_REGEXPS)
 AC_SUBST(TEST_REGEXPS)
 
 if test "$with_debug" = "no" ; then
     echo Disabling DEBUG support
     WITH_DEBUG=0
     DEBUG_OBJ=
     TEST_DEBUG=
 else    
     WITH_DEBUG=1
     DEBUG_OBJ=debugXML.o
     TEST_DEBUG=Scripttests
 fi
 AC_SUBST(WITH_DEBUG)
 AC_SUBST(DEBUG_OBJ)
 AC_SUBST(TEST_DEBUG)
 
 if test "$with_mem_debug" = "yes" ; then
     if test "$with_thread_alloc" = "yes" ; then
         echo Disabling memory debug - cannot use mem-debug with thread-alloc!
 	WITH_MEM_DEBUG=0
     else
         echo Enabling memory debug support
         WITH_MEM_DEBUG=1
     fi
 else    
     WITH_MEM_DEBUG=0
 fi
 AC_SUBST(WITH_MEM_DEBUG)
 
 if test "$with_run_debug" = "yes" ; then
     echo Enabling runtime debug support
     WITH_RUN_DEBUG=1
 else    
     WITH_RUN_DEBUG=0
 fi
 AC_SUBST(WITH_RUN_DEBUG)
 
 WIN32_EXTRA_LIBADD=
 WIN32_EXTRA_LDFLAGS=
 CYGWIN_EXTRA_LDFLAGS=
 CYGWIN_EXTRA_PYTHON_LIBADD=
 WIN32_EXTRA_PYTHON_LIBADD=
 case "$host" in
  *-*-mingw*)
  CPPFLAGS="$CPPFLAGS -DWIN32"
  WIN32_EXTRA_LIBADD="-lws2_32"
  WIN32_EXTRA_LDFLAGS="-no-undefined"
  if test "${PYTHON}" != ""
  then
    WIN32_EXTRA_PYTHON_LIBADD="-L${pythondir}/../../libs -lpython$(echo ${PYTHON_VERSION} | tr -d .)"
  fi
  ;;
  *-*-cygwin*)
  CYGWIN_EXTRA_LDFLAGS="-no-undefined"
  if test "${PYTHON}" != ""
  then
    CYGWIN_EXTRA_PYTHON_LIBADD="-L/usr/lib/python${PYTHON_VERSION}/config -lpython${PYTHON_VERSION}"
  fi
  ;;
 esac
 AC_SUBST(WIN32_EXTRA_LIBADD)
 AC_SUBST(WIN32_EXTRA_LDFLAGS)
 AC_SUBST(WIN32_EXTRA_PYTHON_LIBADD)
 AC_SUBST(CYGWIN_EXTRA_LDFLAGS)
 AC_SUBST(CYGWIN_EXTRA_PYTHON_LIBADD)
 
 dnl Checking the standard string functions availability
 dnl
 dnl Note mingw* has C99 implementation that produce expected xml numbers
 dnl if code use {v}snprintf functions.
 dnl If you like to activate at run-time C99 compatible number output
 dnl see release note for mingw runtime 3.15:
 dnl  http://sourceforge.net/project/shownotes.php?release_id=24832
 dnl
 dnl Also *win32*config.h files redefine them for various MSC compilers.
 dnl
 dnl So do not redefine {v}snprintf to _{v}snprintf like follwing:
 dnl  AC_DEFINE([snprintf],[_snprintf],[Win32 Std C name mangling work-around])
 dnl  AC_DEFINE([vsnprintf],[_vsnprintf],[Win32 Std C name mangling work-around])
 dnl and do not redefine those functions is C-source files.
 dnl
 AC_CHECK_FUNCS(printf sprintf fprintf snprintf vfprintf vsprintf vsnprintf sscanf,,
 	NEED_TRIO=1)
 
 if test "$with_coverage" = "yes" -a "${GCC}" = "yes"
 then
     echo Enabling code coverage for GCC
     EXTRA_CFLAGS="$EXTRA_CFLAGS -fprofile-arcs -ftest-coverage"
     LDFLAGS="$LDFLAGS -fprofile-arcs -ftest-coverage"
 else
     echo Disabling code coverage for GCC
 fi
 
 AC_SUBST(CPPFLAGS)
 AC_SUBST(EXTRA_CFLAGS)
 AC_SUBST(LDFLAGS)
 AC_SUBST(XML_CFLAGS)
 
 AC_SUBST(XML_LIBDIR)
 AC_SUBST(XML_LIBS)
 AC_SUBST(XML_LIBTOOLLIBS)
 AC_SUBST(ICONV_LIBS)
 AC_SUBST(ICU_LIBS)
 AC_SUBST(XML_INCLUDEDIR)
 AC_SUBST(HTML_DIR)
 AC_SUBST(HAVE_ISNAN)
 AC_SUBST(HAVE_ISINF)
 AC_SUBST(PYTHON)
 AC_SUBST(PYTHON_VERSION)
 AC_SUBST(PYTHON_INCLUDES)
 AC_SUBST(PYTHON_SITE_PACKAGES)
 
 AC_SUBST(M_LIBS)
 AC_SUBST(RDL_LIBS)
 
 dnl for the spec file
 RELDATE=`date +'%a %b %e %Y'`
 AC_SUBST(RELDATE)
 AC_SUBST(PYTHON_TESTS)
 
 rm -f COPYING.LIB COPYING
 ln -s $srcdir/Copyright COPYING
 
 # keep on one line for cygwin c.f. #130896
 AC_CONFIG_FILES([libxml2.spec:libxml.spec.in Makefile include/Makefile include/libxml/Makefile doc/Makefile doc/examples/Makefile doc/devhelp/Makefile example/Makefile python/Makefile python/tests/Makefile xstc/Makefile include/libxml/xmlversion.h libxml-2.0.pc libxml-2.0-uninstalled.pc libxml2-config.cmake])
 AC_CONFIG_FILES([python/setup.py], [chmod +x python/setup.py])
 AC_CONFIG_FILES([xml2-config], [chmod +x xml2-config])
 AC_OUTPUT
 
 echo Done configuring