| # libxml.m4 serial 10 |
| dnl Copyright (C) 2006, 2008, 2011, 2013, 2016, 2019-2020 Free Software Foundation, Inc. |
| dnl This file is free software; the Free Software Foundation |
| dnl gives unlimited permission to copy and/or distribute it, |
| dnl with or without modifications, as long as this notice is preserved. |
| |
| dnl From Bruno Haible. |
| |
| dnl gl_LIBXML |
| dnl gives the user the option to decide whether to use the included or |
| dnl an external libxml. |
| dnl gl_LIBXML(FORCE-INCLUDED) |
| dnl forces the use of the included or an external libxml. |
| AC_DEFUN([gl_LIBXML], |
| [ |
| AC_REQUIRE([AM_ICONV_LINK]) |
| |
| ifelse([$1], , [ |
| AC_MSG_CHECKING([whether included libxml is requested]) |
| AC_ARG_WITH([included-libxml], |
| [ --with-included-libxml use the libxml2 included here], |
| [gl_cv_libxml_force_included=$withval], |
| [gl_cv_libxml_force_included=no]) |
| AC_MSG_RESULT([$gl_cv_libxml_force_included]) |
| ], [gl_cv_libxml_force_included=$1]) |
| |
| gl_cv_libxml_use_included="$gl_cv_libxml_force_included" |
| LIBXML= |
| LTLIBXML= |
| INCXML= |
| ifelse([$1], [yes], , [ |
| if test "$gl_cv_libxml_use_included" != yes; then |
| dnl Figure out whether we can use a preinstalled libxml2, or have to use |
| dnl the included one. |
| AC_CACHE_VAL([gl_cv_libxml], [ |
| gl_cv_libxml=no |
| gl_cv_LIBXML= |
| gl_cv_LTLIBXML= |
| gl_cv_INCXML= |
| gl_save_LIBS="$LIBS" |
| LIBS="$LIBS $LIBICONV" |
| dnl Search for libxml2 and define LIBXML2, LTLIBXML2 and INCXML2 |
| dnl accordingly. |
| dnl Don't use xml2-config nor pkg-config, since it doesn't work when |
| dnl cross-compiling or when the C compiler in use is different from the |
| dnl one that built the library. |
| dnl Use a test program that tries to invoke xmlFree. On Cygwin 1.7.x, |
| dnl libxml2 is built in such a way that uses of xmlFree work fine with |
| dnl -Wl,--enable-auto-import but lead to a link error with |
| dnl -Wl,--disable-auto-import. |
| AC_LIB_LINKFLAGS_BODY([xml2]) |
| LIBS="$gl_save_LIBS $LIBXML2 $LIBICONV" |
| AC_LINK_IFELSE( |
| [AC_LANG_PROGRAM( |
| [[#include <libxml/xmlversion.h> |
| #include <libxml/xmlmemory.h> |
| #include <libxml/xpath.h> |
| ]], |
| [[xmlCheckVersion (0); |
| xmlFree ((void *) 0); |
| xmlXPathSetContextNode ((void *)0, (void *)0); |
| ]])], |
| [gl_cv_libxml=yes |
| gl_cv_LIBXML="$LIBXML2 $LIBICONV" |
| gl_cv_LTLIBXML="$LTLIBXML2 $LTLIBICONV" |
| ]) |
| if test "$gl_cv_libxml" != yes; then |
| gl_save_CPPFLAGS="$CPPFLAGS" |
| CPPFLAGS="$CPPFLAGS $INCXML2" |
| AC_LINK_IFELSE( |
| [AC_LANG_PROGRAM( |
| [[#include <libxml/xmlversion.h> |
| #include <libxml/xmlmemory.h> |
| #include <libxml/xpath.h> |
| ]], |
| [[xmlCheckVersion (0); |
| xmlFree ((void *) 0); |
| xmlXPathSetContextNode ((void *)0, (void *)0); |
| ]])], |
| [gl_cv_libxml=yes |
| gl_cv_LIBXML="$LIBXML2 $LIBICONV" |
| gl_cv_LTLIBXML="$LTLIBXML2 $LTLIBICONV" |
| gl_cv_INCXML="$INCXML2" |
| ]) |
| if test "$gl_cv_libxml" != yes; then |
| dnl Often the include files are installed in /usr/include/libxml2. |
| dnl In libxml2-2.5, <libxml/xmlversion.h> is self-contained. |
| dnl In libxml2-2.6, it includes <libxml/xmlexports.h> which is |
| dnl self-contained. |
| libxml2_include_dir= |
| AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <libxml2/libxml/xmlexports.h>]])], |
| [gl_ABSOLUTE_HEADER([libxml2/libxml/xmlexports.h]) |
| libxml2_include_dir=`echo "$gl_cv_absolute_libxml2_libxml_xmlexports_h" | sed -e 's,.libxml.xmlexports\.h$,,'` |
| ]) |
| if test -z "$libxml2_include_dir"; then |
| AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <libxml2/libxml/xmlversion.h>]])], |
| [gl_ABSOLUTE_HEADER([libxml2/libxml/xmlversion.h]) |
| libxml2_include_dir=`echo "$gl_cv_absolute_libxml2_libxml_xmlversion_h" | sed -e 's,.libxml.xmlversion\.h$,,'` |
| ]) |
| fi |
| if test -n "$libxml2_include_dir" && test -d "$libxml2_include_dir"; then |
| CPPFLAGS="$gl_save_CPPFLAGS -I$libxml2_include_dir" |
| AC_LINK_IFELSE( |
| [AC_LANG_PROGRAM( |
| [[#include <libxml/xmlversion.h> |
| #include <libxml/xmlmemory.h> |
| #include <libxml/xpath.h> |
| ]], |
| [[xmlCheckVersion (0); |
| xmlFree ((void *) 0); |
| xmlXPathSetContextNode ((void *)0, (void *)0); |
| ]])], |
| [gl_cv_libxml=yes |
| gl_cv_LIBXML="$LIBXML2 $LIBICONV" |
| gl_cv_LTLIBXML="$LTLIBXML2 $LTLIBICONV" |
| gl_cv_INCXML="-I$libxml2_include_dir" |
| ]) |
| fi |
| fi |
| CPPFLAGS="$gl_save_CPPFLAGS" |
| fi |
| LIBS="$gl_save_LIBS" |
| ]) |
| AC_MSG_CHECKING([for libxml]) |
| AC_MSG_RESULT([$gl_cv_libxml]) |
| if test $gl_cv_libxml = yes; then |
| LIBXML="$gl_cv_LIBXML" |
| LTLIBXML="$gl_cv_LTLIBXML" |
| INCXML="$gl_cv_INCXML" |
| else |
| gl_cv_libxml_use_included=yes |
| fi |
| fi |
| ]) |
| AC_SUBST([LIBXML]) |
| AC_SUBST([LTLIBXML]) |
| AC_SUBST([INCXML]) |
| AC_MSG_CHECKING([whether to use the included libxml]) |
| AC_MSG_RESULT([$gl_cv_libxml_use_included]) |
| |
| if test "$gl_cv_libxml_use_included" = yes; then |
| LIBXML_H= |
| LIBXML_H="$LIBXML_H libxml/DOCBparser.h" |
| LIBXML_H="$LIBXML_H libxml/HTMLparser.h" |
| LIBXML_H="$LIBXML_H libxml/HTMLtree.h" |
| LIBXML_H="$LIBXML_H libxml/SAX2.h" |
| LIBXML_H="$LIBXML_H libxml/SAX.h" |
| LIBXML_H="$LIBXML_H libxml/c14n.h" |
| LIBXML_H="$LIBXML_H libxml/catalog.h" |
| LIBXML_H="$LIBXML_H libxml/chvalid.h" |
| LIBXML_H="$LIBXML_H libxml/debugXML.h" |
| LIBXML_H="$LIBXML_H libxml/dict.h" |
| LIBXML_H="$LIBXML_H libxml/encoding.h" |
| LIBXML_H="$LIBXML_H libxml/entities.h" |
| LIBXML_H="$LIBXML_H libxml/globals.h" |
| LIBXML_H="$LIBXML_H libxml/hash.h" |
| LIBXML_H="$LIBXML_H libxml/list.h" |
| LIBXML_H="$LIBXML_H libxml/nanoftp.h" |
| LIBXML_H="$LIBXML_H libxml/nanohttp.h" |
| LIBXML_H="$LIBXML_H libxml/parser.h" |
| LIBXML_H="$LIBXML_H libxml/parserInternals.h" |
| LIBXML_H="$LIBXML_H libxml/pattern.h" |
| LIBXML_H="$LIBXML_H libxml/relaxng.h" |
| LIBXML_H="$LIBXML_H libxml/schemasInternals.h" |
| LIBXML_H="$LIBXML_H libxml/schematron.h" |
| LIBXML_H="$LIBXML_H libxml/threads.h" |
| LIBXML_H="$LIBXML_H libxml/tree.h" |
| LIBXML_H="$LIBXML_H libxml/uri.h" |
| LIBXML_H="$LIBXML_H libxml/valid.h" |
| LIBXML_H="$LIBXML_H libxml/xinclude.h" |
| LIBXML_H="$LIBXML_H libxml/xlink.h" |
| LIBXML_H="$LIBXML_H libxml/xmlIO.h" |
| LIBXML_H="$LIBXML_H libxml/xmlautomata.h" |
| LIBXML_H="$LIBXML_H libxml/xmlerror.h" |
| LIBXML_H="$LIBXML_H libxml/xmlexports.h" |
| LIBXML_H="$LIBXML_H libxml/xmlmemory.h" |
| LIBXML_H="$LIBXML_H libxml/xmlmodule.h" |
| LIBXML_H="$LIBXML_H libxml/xmlreader.h" |
| LIBXML_H="$LIBXML_H libxml/xmlregexp.h" |
| LIBXML_H="$LIBXML_H libxml/xmlsave.h" |
| LIBXML_H="$LIBXML_H libxml/xmlschemas.h" |
| LIBXML_H="$LIBXML_H libxml/xmlschemastypes.h" |
| LIBXML_H="$LIBXML_H libxml/xmlstring.h" |
| LIBXML_H="$LIBXML_H libxml/xmlunicode.h" |
| LIBXML_H="$LIBXML_H libxml/xmlversion.h" |
| LIBXML_H="$LIBXML_H libxml/xmlwriter.h" |
| LIBXML_H="$LIBXML_H libxml/xpath.h" |
| LIBXML_H="$LIBXML_H libxml/xpathInternals.h" |
| LIBXML_H="$LIBXML_H libxml/xpointer.h" |
| AC_CHECK_HEADERS([arpa/inet.h ctype.h dlfcn.h dl.h errno.h \ |
| fcntl.h float.h limits.h malloc.h math.h netdb.h \ |
| netinet/in.h signal.h stdlib.h string.h \ |
| strings.h sys/select.h sys/socket.h sys/stat.h \ |
| sys/time.h sys/types.h time.h unistd.h]) |
| AC_CHECK_HEADERS([arpa/nameser.h], [], [], [ |
| #if HAVE_SYS_TYPES_H |
| # include <sys/types.h> |
| #endif |
| ]) |
| AC_CHECK_HEADERS([resolv.h], [], [], [ |
| #if HAVE_SYS_TYPES_H |
| # include <sys/types.h> |
| #endif |
| #if HAVE_NETINET_IN_H |
| # include <netinet/in.h> |
| #endif |
| #if HAVE_ARPA_NAMESER_H |
| # include <arpa/nameser.h> |
| #endif |
| ]) |
| AC_CHECK_FUNCS([getaddrinfo localtime stat strftime]) |
| dnl This relies on the va_copy replacement from the stdarg module. |
| AC_DEFINE([VA_COPY], [va_copy], |
| [Define to a working va_copy macro or replacement.]) |
| dnl Don't bother checking for pthread.h and other multithread facilities. |
| dnl Don't bother checking for zlib.h and how to link with libz. |
| else |
| LIBXML_H= |
| fi |
| AC_SUBST([LIBXML_H]) |
| |
| AM_CONDITIONAL([INCLUDED_LIBXML], |
| [test "$gl_cv_libxml_use_included" = yes]) |
| ]) |
