Remove functionnalities from libxml to reduce size.

extras/contrib/src/Makefile

@@ -1603,9 +1603,9 @@ ifdef HAVE_WIN32
 	(cd xml; aclocal && automake && autoreconf)
 endif
   ifdef HAVE_CYGWIN
-	(cd xml; ac_cv_header_pthread_h="no" CFLAGS="-DLIBXML_STATIC" $(HOSTCC) ./configure $(HOSTCONF) --prefix=$(PREFIX) --with-minimal --with-catalog --with-reader --with-tree --with-push --with-xptr --with-valid --with-xpath --with-xinclude --with-sax1 --without-zlib --without-iconv --without-http --without-ftp && make && make install)
+	(cd xml; ac_cv_header_pthread_h="no" CFLAGS="-DLIBXML_STATIC" $(HOSTCC) ./configure $(HOSTCONF) --prefix=$(PREFIX) --with-minimal --with-catalog --with-reader --with-tree --with-push --with-xptr --with-valid --with-xpath --with-xinclude --with-sax1 --without-zlib --without-iconv --without-http --without-ftp  --without-debug --without-docbook --without-regexps && make && make install)
   else
-	(cd xml; CFLAGS="-DLIBXML_STATIC" $(HOSTCC) ./configure $(HOSTCONF) --prefix=$(PREFIX) --with-minimal --with-catalog --with-reader --with-tree --with-push --with-xptr --with-valid --with-xpath --with-xinclude --with-sax1 --without-zlib --without-iconv --without-http --without-ftp && make && make install)
+	(cd xml; CFLAGS="-DLIBXML_STATIC" $(HOSTCC) ./configure $(HOSTCONF) --prefix=$(PREFIX) --with-minimal --with-catalog --with-reader --with-tree --with-push --with-xptr --with-valid --with-xpath --with-xinclude --with-sax1 --without-zlib --without-iconv --without-http --without-ftp  --without-debug --without-docbook --without-regexps && make && make install)
   endif
 ifndef HAVE_DARWIN_OS
 	$(INSTALL_NAME)