Revision d22fc2b051e00c75cd367ab771b96f455d1e18ae authored by Duncan Temple Lang on 11 August 2004, 00:00:00 UTC, committed by Gabor Csardi on 11 August 2004, 00:00:00 UTC
1 parent 3a6da11
configure.in
# An input file for autoconf to configure
# the XML parsing facilities for both R and S.
# Currently this works for R.
#
# This was implemented by Friedrich Leisch
# with some modifications for the next version
# by Duncan Temple Lang.
#
AC_INIT(DESCRIPTION)
dnl The different command line arguments for configure.
dnl They can also be specified by setting environment variables.
dnl
dnl Establish the command line arguments accepted by this script.
dnl
dnl
dnl whether to use Splus.
AC_ARG_WITH(splus,[ --with-splus Compile as an SPlus library (rather than R). Value can be the (fully qualified) name of the Splus script.], USE_SPLUS=1)
dnl explicitly force the use of the old names. If this doesn't match the header
dnl files that are actually found, then
AC_ARG_WITH(oldlibxml,[], USE_OLD_ROOT_CHILD_NAMES=1; FORCE_OLD=1;echo "Using old libxml names")
dnl tell the configuration that we are using libxml2.
AC_ARG_WITH(libxml2,[ --with-libxml2 indicate that the libxml version is 2.0 or higher],
[ if test "${withval}" = yes; then
LIBXML2="-DLIBXML2=1";
USE_XML2="yes" ;
fi], USE_XML2="yes")
AC_ARG_WITH(xml-config,[ --with-xml-config the name of the xml-config program to use.],
[ XML_CONFIG=${withval}])
dnl compile for use with libxml. This is the default.
AC_ARG_WITH(libxml, [ --with-libxml use the libxml library (default)],
[ if test "${withval}" = no; then
USE_LIBXML=false;
else
USE_LIBXML=true;
fi],
USE_LIBXML=true)
# Default is false for expat since we can
# do event driven parsing with libxml.
AC_ARG_WITH(expat,
[ --with-expat use expat library (off by default)],
[ if test "${withval}" = no; then
USE_EXPAT= ;
else
USE_EXPAT=true;
fi],
USE_EXPAT= )
dnl
dnl End of command line argument declarations.
dnl Now compute the relevant settings.
dnl
dnl Get the C compiler, including any values set by the user
dnl We need this to perform compilation and link checks.
AC_PROG_CC
AC_PROG_CPP
dnl ======================================================
dnl Check whether we are compiling this for use with SPlus
dnl and if so, figure out which version.
if test -n "${USE_SPLUS}" ; then
# Allows the user to say --with-splus=/usr/local/bin/Splus5
# This could be fooled, but unlikely unless the user does something
# "clever"
if test -x ${with_splus} ; then
SPLUS=${with_splus}
else
SPLUS=Splus
fi
# Get the major version of the Splus being run.
dnl Shouldn't this be perl -epn
SPLUS_VERSION=`echo 'cat(version$major,"\n",sep="")' | ${SPLUS} | perl -e 'while(<STDIN>){ $x = $_;} printf $x;'`
# If this is version 3, we are in trouble.
if test ${SPLUS_VERSION} -lt 5 ; then
echo "This package does not work with SPlus 3, but only SPlus 5 and 6"
exit 1
fi
fi # end of USE_SPLUS.
dnl ======================================================
dnl In this section, we try to find the different
dnl characteristics of the libxml library.
dnl We are looking to see if
dnl a) it is version 1.8.* or version 2.*
dnl b) whether it is installed with include files in <wherever>/gnome-xml
dnl or in a private, uninstalled form in which case the include
dnl directory is usually libxml/
if test -n "${USE_LIBXML}" ; then
dnl If the user gave us xml*-config, then use that.
if test -n "${XML_CONFIG}" && test -x "${XML_CONFIG}" ; then
USING_USER_XML_CONFIG="yes"
XML_VERSION="`${XML_CONFIG} --version | sed -e 's/\..*//g'`"
if test "${XML_VERSION}" = "2" ; then
USE_XML2="yes"
LIBXML2="-DLIBXML2=1";
fi
echo "User defined xml-config: ${XML_CONFIG}, XML Version: ${XML_VERSION}, XML2: ${USE_XML2}"
fi
LANGUAGE_DEFS="${LANGUAGE_DEFS} -DHAVE_VALIDITY=1"
dnl if the user has not specified anything about libxml,
dnl then lets look for xml-config. We let the user give this
dnl as an environment variable `XML_CONFIG'.
if test -z "${LIBXML_INCDIR}" && test -z "${LIBXML_LIBDIR}" ; then
dnl find xml*-config
dnl If they ask explicitly for xml2, find it or fail otherwise.
if test "${USE_XML2}" == "yes" ; then
if test -z "${XML_CONFIG}" ; then
AC_PATH_PROGS(XML_CONFIG, xml2-config)
if test -z "${XML_CONFIG}" ; then
echo "Cannot find xml2-config"
exit 1
fi
fi
fi
dnl Otherwise, if they implicitly ask for xml-config
dnl find that.
if test -z "${XML_CONFIG}" ; then
AC_PATH_PROGS(XML_CONFIG, xml-config)
fi
dnl and if they don't have libxml version 1, see if they
dnl have libxml2
if test "${USE_XML2}" == "maybe" ; then
if test -z "${XML_CONFIG}" ; then
AC_PATH_PROGS(XML_CONFIG, xml2-config)
if test -z "${XML_CONFIG}" ; then
echo "Cannot find xml2-config"
exit 1
else
echo "Using libxml version 2."
fi
fi
fi
if test -n "${XML_CONFIG}" ; then
LIBXML_INCDIR=`${XML_CONFIG} --cflags`
LIBXML_LIBDIR=`${XML_CONFIG} --libs`
FOUND_LIBXML_INCLUDES="Ok"
fi
fi dnl USE_XML2
dnl If the user has specified LIBXML_INCDIR, then
dnl we use that.
dnl Otherwise, we try to find the parser.h file.
if test -n "${LIBXML_INCDIR}" && test -z "${XML_CONFIG}" ; then
echo "Checking directory of LIBXML_INCDIR"
if test -d $LIBXML_INCDIR ; then
dnl Maybe also test for ${LIBXML_INCDIR}/parser.h
dnl in case somebody points us directly at the include directory.
if test -r ${LIBXML_INCDIR}/libxml/parser.h ; then
FOUND_LIBXML_INCLUDES="Ok"
elif test -r ${LIBXML_INCDIR}/gnome-xml/parser.h ; then
FOUND_LIBXML_INCLUDES="Ok"
PKG_CPPFLAGS="${PKG_CPPFLAGS} -DFROM_GNOME_XML_DIR=1"
else
echo "You specified LIBXML_INCDIR, but we couldn't find parser.h"
echo "Please specify it correctly and re-run the INSTALL'ation."
exit 1
fi
else
echo "The LIBXML_INCDIR value you specified ($LIBXML_INCDIR) is not a directory."
echo "Please specify it correctly and re-run the INSTALL'ation."
exit 1
fi
fi
dnl We should have exited if we cannot find parser.h
dnl LIBXML_INCDIR.
if test -z "${FOUND_LIBXML_INCLUDES}" ; then
dnl the idea is that we loop over different directories
dnl looking for parser.h. We look in the sub-directory
dnl gnome-xml/
TMP_CPPFLAGS=${CPPFLAGS}
for dir in ${LIBXML_INCDIR} /usr/local/include /usr/include ; do
CPPFLAGS="${TMP_CPPFLAGS} -I${dir}"
AC_CHECK_HEADER(libxml/parser.h, FROM_LIBXML_DIR=1)
if test -n "${FROM_LIBXML_DIR}" ; then
LIBXML_INCDIR="-I${dir}"
CPPFLAGS="${TMP_CPPFLAGS} -I${dir} -I${dir}/libxml"
PKG_CPPFLAGS="${TMP_CPPFLAGS} -I${dir} -I${dir}/libxml"
echo "Found the libxml parser.h in $dir/libxml/"
break
fi
CPPFLAGS="${TMP_CPPFLAGS} -I${dir}/gnome-xml"
AC_CHECK_HEADER(gnome-xml/parser.h, FROM_GNOME_XML_DIR=1)
if test -n "${FROM_GNOME_XML_DIR}" ; then
PKG_CPPFLAGS="${PKG_CPPFLAGS} -DFROM_GNOME_XML_DIR=1"
CPPFLAGS="${CPPFLAGS} -DFROM_GNOME_XML_DIR=1"
LIBXML_INCDIR="-I${dir}"
echo "Found the gnome-xml parser in $dir"
break
fi
done
if test -z "${FROM_GNOME_XML_DIR}" ; then
CPPFLAGS=${TMP_CPPFLAGS}
fi
fi # end of -z FOUND_LIBXML_INCLUDES
if test -z "${LIBXML_INCDIR}"; then
AC_CHECK_HEADER(libxml/parser.h, LIBXML_INCDIR="libxml/")
fi
if test -z "${LIBXML_INCDIR}" ; then
echo "Cannot find parser.h. Set the value of the environment variable"
echo " LIBXML_INCDIR"
echo "to point to where it can be found."
exit 1;
else
echo "Located parser file ${LIBXML_INCDIR}/parser.h"
fi
if test -z "${LIBXML2}" ; then
CPPFLAGS="${PKG_CPPFLAGS} ${LIBXML_INCDIR}"
echo "Checking for 1.8: ${CPPFLAGS}"
AC_TRY_COMPILE([
#ifdef FROM_GNOME_XML_DIR
#include <gnome-xml/parser.h>
#else
#include <libxml/parser.h>
#endif],
[ xmlAttr *attr;
attr->val = NULL;
], [echo "Using libxml 1.8.*!"],[LIBXML2="-DLIBXML2=1"; echo "Using libxml2.*" ])
fi
# AC_EGREP_HEADER(xmlParseFile, ${LIBXML_INCDIR}parser.h,
# HAVE_LIBXML_HEADER=true,
# AC_MSG_ERROR("header files for libxml seem to be incorrect"))
AC_CHECK_LIB(z, gzopen)
if test -n "${LIBXML2}" ; then
AC_CHECK_LIB(xml2, xmlParseFile, LIBS="${LIBS} -lxml2"; USE_XMLLIB_NAME=xml2, NO_XML_LIB=1, "${LIBXML_LIBDIR--L.}")
else
NO_XML_LIB=1
fi
if test -n "${NO_XML_LIB}" ; then
AC_CHECK_LIB(xml, xmlParseFile, LIBS="${LIBS} -lxml";USE_XMLLIB_NAME=xml, AC_MSG_ERROR("libxml not found"), "${LIBXML_LIBDIR--L.}")
fi
if test -n "${LIBXML_LIBDIR}" ; then
LIBS="${LIBXML_LIBDIR--L.} ${LIBS}"
LD_PATH="${LIBXML_LIBDIR-.}"
fi
PKG_CPPFLAGS="${PKG_CPPFLAGS} -DLIBXML"
if test -z "${FROM_GNOME_XML_DIR}" ; then
PKG_CPPFLAGS="${PKG_CPPFLAGS} ${LIBXML_INCDIR--I.}"
fi
if test -z "${LIBXML2}" ; then
dnl Now we try to test whether we have a really old libxml
dnl which uses childs and root instead of xmlChildren and xmlRootNode
if test -z "${USE_OLD_ROOT_CHILD_NAMES}" ; then
CPPFLAGS=${PKG_CPPFLAGS}
AC_TRY_COMPILE([
#ifdef FROM_GNOME_XML_DIR
#include <gnome-xml/parser.h>
#else
#include <libxml/parser.h>
#endif],
[ xmlDocPtr node;
node->xmlRootNode = NULL;
], [echo "New style libxml!"],[USE_OLD_ROOT_CHILD_NAMES=1; echo "Need to use old-style libxml names"])
echo "Using old root child names? ${USE_OLD_ROOT_CHILD_NAMES-0}"
fi # USE_OLD_ROOT_CHILD_NAMES
else # -z "${LIBXML2}"
CPPFLAGS=${PKG_CPPFLAGS}
if test -d "${LIBXML_LIBDIR}" ; then
LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${LIBXML_LIBDIR}
export LD_LIBRARY_PATH
fi
AC_TRY_RUN([
#ifdef FROM_GNOME_XML_DIR
#include <gnome-xml/parser.h>
#else
#include <libxml/parser.h>
#endif
int
main(int argc, char *argv)
{
xmlCheckVersion(20000);
return(0);
}
],[ LIBXML2_OK=1],[LIBXML2_OK=0])
if test "${LIBXML2_OK}" = "0" ; then
echo "You are trying to use a version 2.* edition of libxml"
echo "but an incompatible library. The header files and library seem to be"
echo "mismatched. If you have specified LIBXML_INCDIR, make certain to also"
echo "specify an appropriate LIBXML_LIBDIR if the libxml2 library is not in the default"
echo "directories."
exit 1
fi
fi
if test -n "${USE_OLD_ROOT_CHILD_NAMES}" ; then
PKG_CPPFLAGS="${PKG_CPPFLAGS} -DUSE_OLD_ROOT_CHILD_NAMES=1"
fi
fi
if test "${USE_XMLLIB_NAME}" = "xml2" ; then
AC_CHECK_LIB(xml2, xmlHashSize, echo "Using built-in xmlHashSize", PKG_CPPFLAGS="${PKG_CPPFLAGS} -DOWN_XML_HASH_SIZE=1")
fi
if test "${USE_LIBXML}" ; then
echo "Checking DTD parsing (presence of externalSubset)..."
AC_TRY_COMPILE([
#ifdef FROM_GNOME_XML_DIR
#include <gnome-xml/parser.h>
#else
#include <libxml/parser.h>
#endif],
[
xmlParserCtxtPtr ctxt;
ctxt->inSubset = 0;
ctxt->sax->externalSubset = NULL;
], USE_EXT_SUBSET=1)
if test -n "${USE_EXT_SUBSET}" ; then
PKG_CPPFLAGS="${PKG_CPPFLAGS} -DUSE_EXTERNAL_SUBSET=1"
fi
AC_TRY_COMPILE([
#ifdef FROM_GNOME_XML_DIR
#include <gnome-xml/parser.h>
#else
#include <libxml/parser.h>
#endif],
[
xmlNodePtr node;
int x;
x = node->type == XML_DTD_NODE;
], ROOT_HAS_DTD_NODE=1, echo "No XML_DTD_NODE defined")
if test -n "${ROOT_HAS_DTD_NODE}" ; then
PKG_CPPFLAGS="${PKG_CPPFLAGS} -DROOT_HAS_DTD_NODE=1"
fi
AC_CHECK_LIB(${USE_XMLLIB_NAME},xmlHashSize, echo "Found xmlHashSize", echo "No xmlHashSize")
fi
AC_CHECK_LIB(${USE_XMLLIB_NAME}, xmlDocDumpFormatMemoryEnc, PKG_CPPFLAGS="${PKG_CPPFLAGS} -DDUMP_WITH_ENCODING=1")
if test -z "${FROM_GNOME_XML_DIR}" ; then
AC_CHECK_HEADER(libxml/xmlversion.h, PKG_CPPFLAGS="${PKG_CPPFLAGS} -DUSE_XML_VERSION_H=1")
fi
AC_TRY_COMPILE([
#ifdef FROM_GNOME_XML_DIR
#include <gnome-xml/tree.h>
#else
#include <libxml/tree.h>
#endif],
[
xmlElementPtr el;
int x;
x = el->etype;
], PKG_CPPFLAGS="${PKG_CPPFLAGS} -DXML_ELEMENT_ETYPE=1"
)
AC_TRY_COMPILE([
#ifdef FROM_GNOME_XML_DIR
#include <gnome-xml/tree.h>
#else
#include <libxml/tree.h>
#endif],
[
xmlAttributePtr el;
int x;
x = el->atype;
], PKG_CPPFLAGS="${PKG_CPPFLAGS} -DXML_ATTRIBUTE_ATYPE=1"
)
if test -n "${USE_EXPAT}" ; then
AC_CHECK_HEADER(xmltok/xmlparse.h, XMLPARSE_INCDIR="xmltok/")
if test -z "${XMLPARSE_INCDIR}" ; then
AC_CHECK_HEADER(xmlparse/xmlparse.h, XMLPARSE_INCDIR="xmlparse/")
fi
AC_EGREP_HEADER(XML_Parse, ${XMLPARSE_INCDIR}xmlparse.h,
HAVE_EXPAT_HEADER=true,
AC_MSG_ERROR("header file xmlparse.h seems to be incorrect"))
AC_CHECK_LIB(xmltok, XmlInitEncoding,,AC_MSG_ERROR("libxmltok not found"))
AC_CHECK_LIB(xmlparse, XML_Parse,,
AC_MSG_ERROR("libxmlparse not found"), -lxmltok)
PKG_CPPFLAGS="${PKG_CPPFLAGS} -DLIBEXPAT -I${XMLPARSE_INCDIR}"
LD_PATH="${LD_PATH}:${LIBXML_LIBDIR}"
fi
if test -n "${USE_EXPAT}" ; then
SUPPORTS_EXPAT="TRUE"
else
SUPPORTS_EXPAT="FALSE"
fi
echo "Expat: ${USE_EXPAT} ${SUPPORTS_EXPAT}"
if test -n "${USE_LIBXML}" ; then
SUPPORTS_LIBXML="TRUE"
else
SUPPORTS_LIBXML="FALSE"
fi
if test -z "${USE_SPLUS}" ; then
LANGUAGE_DEFS="-DUSE_R=1 -D_R_=1 ${LANGUAGE_DEFS}"
dnl PKG_SYS_FILE='system.file("scripts", name, pkg="RSPerl")'
else
dnl Test to see if the patch has been made to renamin the attribute()
dnl routine in libxml
if test ${SUPPORTS_LIBXML}="TRUE" ; then
AC_CHECK_LIB(xml, attribute, NEED_LIBXML_PATCH=1)
if test -n "${NEED_LIBXML_PATCH}" ; then
echo "The XML package will not work with S-Plus and the current libxml"
echo "because of a conflict from both having a routine named attribute()"
echo "We suggest that you modify the SAX.c file in the libxml and re-install."
echo "See PATCH.attribute in this package's distribution."
exit 1
fi
fi # ? SUPPORTS_LIBXML = "TRUE"
LANGUAGE_DEFS="-D_S_=1 -DUSE_S=1 -D_S4_=1 -D_SPLUS${SPLUS_VERSION}_ -DNO_SPLUS_THREAD_DEF=1 ${LANGUAGE_DEFS}"
INSTALL_DIR=`pwd`
PKG_SYS_FILE="paste(\"${INSTALL_DIR}/inst/scripts/\", name,sep=\"\")"
fi dnl end of if S-Plus.
AC_TRY_LINK(
[
#include "parser.h"
],
[
extern int xmlSkipBlankChars(xmlParserCtxtPtr ctxt);
xmlParserCtxtPtr p;
xmlSkipBlankChars(p);
],
echo "No need for old SKIP_BLANKS definition"
, BLANKS_DEF="-DOLD_SKIP_BLANKS=1"
)
if test -n "LIBXML2" ; then
TMP_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} -pedantic-errors"
echo "Checking for return type of xmlHashScan element routine."
AC_TRY_COMPILE([
#ifdef FROM_GNOME_XML_DIR
#include <gnome-xml/SAX.h>
#include <gnome-xml/hash.h>
#else
#include <libxml/SAX.h>
#include <libxml/hash.h>
#endif
],
[
void *(*foo)(void *, void *, xmlChar*);
xmlElementTablePtr table;
xmlHashScan(table, foo, NULL);
], [echo "xmlHashScan wants a return value."],
[echo "No return value for xmlHashScan"; PKG_CPPFLAGS="${PKG_CPPFLAGS} -DNO_XML_HASH_SCANNER_RETURN=1"]
)
CFLAGS="${TMP_CFLAGS}"
fi
AC_SUBST(DUMP_WITH_ENCODING)
PKG_LIBS=${LIBS}
dnl ----------------------------------------------------
dnl Add -m to the linker flags (actually libraries)
dnl to supress errors about multiple definitions of
dnl symbols.
dnl
dnl This is not needed anymore as we no longer define
dnl xmlParserError in our code and override the one
dnl in libmxml. If we do find a situation (e.g. version
dnl of libxml that doesn't allow us to play with routine
dnl pointers to do this, we will need to define
dnl NEED_XML_PARSER_ERROR
dnl
dnl AC_CANONICAL_HOST
dnl Doesn't work on my machine. Where do we find it - R?
if test -n "${NEED_XML_PARSER_ERROR}" ; then
AC_PATH_PROG(UNAME, uname)
if test -n "${UNAME}" ; then
host_os=`${UNAME}`
if test "${host_os}" = "Darwin" ; then
PKG_LIBS="-m $PKG_LIBS"
fi
fi
fi
dnl ---------------------------------------------------
AC_SUBST(LIBXML2)
AC_SUBST(LANGUAGE_DEFS)
AC_SUBST(LIBXML_INCDIR)
AC_SUBST(XMLPARSE_INCDIR)
AC_SUBST(PKG_LIBS)
AC_SUBST(PKG_CPPFLAGS)
AC_SUBST(SUPPORTS_LIBXML)
AC_SUBST(SUPPORTS_EXPAT)
AC_SUBST(LD_PATH)
if test -n "${USE_SPLUS}" ; then
AC_SUBST(SPLUS)
SPLUS_MAKEFILE=GNUmakefile.Splus
fi
echo ""
echo "****************************************"
echo "Configuration information:"
echo ""
echo "Libxml settings"
echo ""
echo "libxml include directory: ${LIBXML_INCDIR}"
echo "libxml library directory: ${LIBS}"
echo "libxml 2: ${LIBXML2-no}"
echo ""
echo "Compilation flags: ${PKG_CPPFLAGS}"
echo "Link flags: ${PKG_LIBS}"
echo ""
echo "****************************************"
dnl create the different targets
AC_OUTPUT(src/Makevars R/supports.R inst/scripts/RSXML.csh inst/scripts/RSXML.bsh ${SPLUS_MAKEFILE})
chmod +x cleanup
dnl Set things up for an S-Plus chapter.
if test -n "${USE_SPLUS}" ; then
mv GNUmakefile.Splus GNUmakefile
echo "Creating S-Plus chapter"
cd src
C_SRC_FILES="DocParse.c RSDTD.c Utils.c"
${SPLUS} CHAPTER ${C_SRC_FILES}
echo "include Makevars" >> makefile
echo 'CFLAGS:= $(PKG_CPPFLAGS) $(CFLAGS)' >> makefile
echo 'LOCAL_LIBS=$(PKG_LIBS) ' >> makefile
cd ..
fi
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