C:/Ruby200/bin/ruby.exe extconf.rb with-xml2-include=C:\Ruby200\include\libxml2 --with-iconv-include=C:\Ruby200\include
checking for socket() in -lsocket... no
checking for gethostbyname() in -lnsl... no
checking for atan() in -lm... yes
checking for inflate() in -lz... no
checking for inflate() in -lzlib... no
checking for inflate() in -lzlib1... yes
checking for iconv_open() in -liconv... no
checking for libiconv_open() in -liconv... no
checking for libiconv_open() in -llibiconv... no
checking for iconv_open() in -llibiconv... no
checking for iconv_open() in -lc... no
checking for iconv_open() in -lrecode... no
checking for main() in -liconv... yes
checking for xmlParseDoc() in -lxml2... no
checking for xmlParseDoc() in -llibxml2... yes
checking for libxml/xmlversion.h... yes
checking for rb_io_bufwrite() in ruby/io.h... yes
creating extconf.h
creating Makefile

make "DESTDIR="
compiling libxml.c
compiling ruby_xml.c
ruby_xml.c: In function 'rxml_default_tree_indent_string_set':
ruby_xml.c:612:23: warning: pointer targets in assignment differ in signedness [-Wpointer-sign]
compiling ruby_xml_attr.c
compiling ruby_xml_attributes.c
compiling ruby_xml_attr_decl.c
ruby_xml_attr_decl.c: In function 'rxml_attr_decl_name_get':
ruby_xml_attr_decl.c:57:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_attr_decl.c:12:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
compiling ruby_xml_cbg.c
compiling ruby_xml_document.c
ruby_xml_document.c: In function 'rxml_document_canonicalize':
ruby_xml_document.c:199:7: warning: variable 'length' set but not used [-Wunused-but-set-variable]
ruby_xml_document.c: In function 'rxml_document_root_set':
ruby_xml_document.c:756:14: warning: variable 'xroot' set but not used [-Wunused-but-set-variable]
ruby_xml_document.c: In function 'rxml_document_save':
ruby_xml_document.c:804:13: warning: pointer targets in assignment differ in signedness [-Wpointer-sign]
compiling ruby_xml_dtd.c
compiling ruby_xml_encoding.c
compiling ruby_xml_error.c
compiling ruby_xml_html_parser.c
compiling ruby_xml_html_parser_context.c
ruby_xml_html_parser_context.c: In function 'rxml_html_parser_context_options_set':
ruby_xml_html_parser_context.c:307:7: warning: variable 'result' set but not used [-Wunused-but-set-variable]
compiling ruby_xml_html_parser_options.c
compiling ruby_xml_input_cbg.c
compiling ruby_xml_io.c
ruby_xml_io.c: In function 'rxml_write_callback':
ruby_xml_io.c:40:3: warning: implicit declaration of function 'rb_io_bufwrite' [-Wimplicit-function-declaration]
compiling ruby_xml_namespace.c
compiling ruby_xml_namespaces.c
compiling ruby_xml_node.c
compiling ruby_xml_parser.c
compiling ruby_xml_parser_context.c
ruby_xml_parser_context.c: In function 'rxml_parser_context_document':
ruby_xml_parser_context.c:53:3: warning: pointer targets in passing argument 4 of 'xmlDocDumpFormatMemoryEnc' differ in signedness [-Wpointer-sign]
In file included from C:\Ruby200\include/libxml/parser.h:16:0,
                 from ruby_libxml.h:7,
                 from ruby_xml_parser_context.c:3:
C:\Ruby200\include/libxml/tree.h:1116:3: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_parser_context.c: In function 'rxml_parser_context_base_uri_get':
ruby_xml_parser_context.c:191:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_parser_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_parser_context.c: In function 'rxml_parser_context_base_uri_set':
ruby_xml_parser_context.c:211:28: warning: pointer targets in initialization differ in signedness [-Wpointer-sign]
ruby_xml_parser_context.c: In function 'rxml_parser_context_data_directory_get':
ruby_xml_parser_context.c:252:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_parser_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_parser_context.c: In function 'rxml_parser_context_encoding_get':
ruby_xml_parser_context.c:356:3: warning: pointer targets in passing argument 1 of 'xmlParseCharEncoding' differ in signedness [-Wpointer-sign]
In file included from C:\Ruby200\include/libxml/parser.h:807:0,
                 from ruby_libxml.h:7,
                 from ruby_xml_parser_context.c:3:
C:\Ruby200\include/libxml/encoding.h:194:2: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_parser_context.c: In function 'rxml_parser_context_name_node_get':
ruby_xml_parser_context.c:510:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_parser_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_parser_context.c: In function 'rxml_parser_context_name_tab_get':
ruby_xml_parser_context.c:537:7: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_parser_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_parser_context.c: In function 'rxml_parser_context_options_set':
ruby_xml_parser_context.c:629:7: warning: variable 'result' set but not used [-Wunused-but-set-variable]
ruby_xml_parser_context.c: In function 'rxml_parser_context_subset_name_get':
ruby_xml_parser_context.c:803:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_parser_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_parser_context.c: In function 'rxml_parser_context_subset_external_uri_get':
ruby_xml_parser_context.c:822:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_parser_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_parser_context.c: In function 'rxml_parser_context_subset_external_system_id_get':
ruby_xml_parser_context.c:841:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_parser_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_parser_context.c: In function 'rxml_parser_context_version_get':
ruby_xml_parser_context.c:926:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_parser_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
compiling ruby_xml_parser_options.c
compiling ruby_xml_reader.c
ruby_xml_reader.c: In function 'rxml_reader_read_inner_xml':
ruby_xml_reader.c:531:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_read_outer_xml':
ruby_xml_reader.c:557:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_read_string':
ruby_xml_reader.c:595:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_name':
ruby_xml_reader.c:661:3: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c:661:3: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_local_name':
ruby_xml_reader.c:676:3: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c:676:3: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_encoding':
ruby_xml_reader.c:712:5: warning: pointer targets in passing argument 1 of 'xmlParseCharEncoding' differ in signedness [-Wpointer-sign]
In file included from C:\Ruby200\include/libxml/parser.h:807:0,
                 from ruby_libxml.h:7,
                 from ruby_xml_reader.c:4:
C:\Ruby200\include/libxml/encoding.h:194:2: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_base_uri':
ruby_xml_reader.c:729:3: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c:729:3: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_namespace_uri':
ruby_xml_reader.c:744:3: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c:744:3: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_value':
ruby_xml_reader.c:759:3: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c:759:3: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_prefix':
ruby_xml_reader.c:774:3: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c:774:3: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_xml_lang':
ruby_xml_reader.c:830:3: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c:830:3: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_xml_version':
ruby_xml_reader.c:845:3: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c:845:3: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_attribute':
ruby_xml_reader.c:898:5: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_reader.c:898:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_get_attribute':
ruby_xml_reader.c:922:5: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_reader.c:922:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_get_attribute_no':
ruby_xml_reader.c:945:5: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_reader.c:945:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_reader.c: In function 'rxml_reader_get_attribute_ns':
ruby_xml_reader.c:963:5: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_reader.c:963:5: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_reader.c:4:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
compiling ruby_xml_relaxng.c
compiling ruby_xml_sax2_handler.c
ruby_xml_sax2_handler.c: In function 'end_element_ns_callback':
ruby_xml_sax2_handler.c:82:7: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:84:7: warning: pointer targets in passing argument 1 of 'strlen' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:51:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_sax2_handler.c:3:
c:\devkit\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/include/string.h:54:18: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:84:7: warning: pointer targets in passing argument 2 of 'rb_str_cat' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:1568:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_sax2_handler.c:3:
c:/Ruby200/include/ruby-2.0.0/ruby/intern.h:724:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:84:7: warning: pointer targets in passing argument 2 of 'rb_str_cat2' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:1568:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_sax2_handler.c:3:
c:/Ruby200/include/ruby-2.0.0/ruby/intern.h:725:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:88:7: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:94:14: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:95:14: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:96:14: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c: In function 'start_element_ns_callback':
ruby_xml_sax2_handler.c:205:7: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:206:7: warning: pointer targets in passing argument 1 of 'rxml_new_cstr_len' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:12:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:217:7: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:218:7: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:229:7: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:231:7: warning: pointer targets in passing argument 1 of 'strlen' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:51:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_sax2_handler.c:3:
c:\devkit\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/include/string.h:54:18: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:231:7: warning: pointer targets in passing argument 2 of 'rb_str_cat' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:1568:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_sax2_handler.c:3:
c:/Ruby200/include/ruby-2.0.0/ruby/intern.h:724:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:231:7: warning: pointer targets in passing argument 2 of 'rb_str_cat2' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:1568:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_sax2_handler.c:3:
c:/Ruby200/include/ruby-2.0.0/ruby/intern.h:725:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:235:7: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:241:14: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:243:14: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_sax2_handler.c:244:14: warning: pointer targets in passing argument 1 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_sax2_handler.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
compiling ruby_xml_sax_parser.c
compiling ruby_xml_schema.c
ruby_xml_schema.c: In function 'storeType':
ruby_xml_schema.c:210:3: warning: pointer targets in passing argument 1 of 'strlen' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:51:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_schema.c:1:
c:\devkit\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/include/string.h:54:18: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_schema.c:210:3: warning: pointer targets in passing argument 1 of 'rb_str_new' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:1568:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_schema.c:1:
c:/Ruby200/include/ruby-2.0.0/ruby/intern.h:674:7: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_schema.c:210:3: warning: pointer targets in passing argument 1 of 'rb_str_new_cstr' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:1568:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_schema.c:1:
c:/Ruby200/include/ruby-2.0.0/ruby/intern.h:675:7: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_schema.c: In function 'storeElement':
ruby_xml_schema.c:240:3: warning: pointer targets in passing argument 1 of 'strlen' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:51:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_schema.c:1:
c:\devkit\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/include/string.h:54:18: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_schema.c:240:3: warning: pointer targets in passing argument 1 of 'rb_str_new' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:1568:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_schema.c:1:
c:/Ruby200/include/ruby-2.0.0/ruby/intern.h:674:7: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_schema.c:240:3: warning: pointer targets in passing argument 1 of 'rb_str_new_cstr' differ in signedness [-Wpointer-sign]
In file included from c:/Ruby200/include/ruby-2.0.0/ruby/ruby.h:1568:0,
                 from c:/Ruby200/include/ruby-2.0.0/ruby.h:33,
                 from ruby_libxml.h:6,
                 from ruby_xml_schema.c:1:
c:/Ruby200/include/ruby-2.0.0/ruby/intern.h:675:7: note: expected 'const char *' but argument is of type 'xmlChar *'
compiling ruby_xml_schema_attribute.c
compiling ruby_xml_schema_element.c
compiling ruby_xml_schema_facet.c
compiling ruby_xml_schema_type.c
compiling ruby_xml_writer.c
ruby_xml_writer.c: In function 'rxml_writer_flush':
ruby_xml_writer.c:260:9: warning: pointer targets in passing argument 1 of 'rb_external_str_new_with_enc' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:26:0,
                 from ruby_xml_writer.c:1:
c:/Ruby200/include/ruby-2.0.0/ruby/encoding.h:110:7: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_writer.c: In function 'rxml_writer_result':
ruby_xml_writer.c:288:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
ruby_xml_writer.c:296:13: warning: pointer targets in passing argument 1 of 'rb_external_str_new_with_enc' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:26:0,
                 from ruby_xml_writer.c:1:
c:/Ruby200/include/ruby-2.0.0/ruby/encoding.h:110:7: note: expected 'const char *' but argument is of type 'xmlChar *'
ruby_xml_writer.c: In function 'numeric_rxml_writer_va_strings':
ruby_xml_writer.c:348:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
compiling ruby_xml_xinclude.c
compiling ruby_xml_xpath.c
ruby_xml_xpath.c: In function 'rxml_xpath_to_value':
ruby_xml_xpath.c:108:7: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_xpath.c:78:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
compiling ruby_xml_xpath_context.c
ruby_xml_xpath_context.c: In function 'rxml_xpath_context_register_namespaces_from_node':
ruby_xml_xpath_context.c:162:9: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_xpath_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_xpath_context.c:163:9: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_xpath_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
ruby_xml_xpath_context.c: In function 'rxml_xpath_context_register_namespaces':
ruby_xml_xpath_context.c:218:7: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_xpath_context.c:3:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
compiling ruby_xml_xpath_expression.c
compiling ruby_xml_xpath_object.c
ruby_xml_xpath_object.c: In function 'rxml_xpath_object_string':
ruby_xml_xpath_object.c:297:3: warning: pointer targets in passing argument 2 of 'rxml_new_cstr' differ in signedness [-Wpointer-sign]
In file included from ruby_libxml.h:43:0,
                 from ruby_xml_xpath_object.c:1:
ruby_xml_encoding.h:11:7: note: expected 'const char *' but argument is of type 'const xmlChar *'
compiling ruby_xml_xpointer.c
linking shared-object libxml_ruby.so
ruby_xml_attr.o: In function `rxml_attr_value_get':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_attr.c:289: undefined reference to `_imp__xmlFree'
ruby_xml_document.o: In function `rxml_document_encoding_set':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_document.c:535: undefined reference to `_imp__xmlFree'
ruby_xml_document.o: In function `rxml_document_canonicalize':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_document.c:338: undefined reference to `_imp__xmlFree'
ruby_xml_document.o: In function `rxml_document_to_s':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_document.c:900: undefined reference to `_imp__xmlFree'
ruby_xml_dtd.o: In function `rxml_dtd_initialize':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_dtd.c:245: undefined reference to `_imp__xmlFree'
ruby_xml_namespaces.o:C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_namespaces.c:132: more undefined references to `_imp__xmlFree' follow
ruby_xml_node.o: In function `rxml_node_output_escaping_q':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:1205: undefined reference to `_imp__xmlStringTextNoenc'
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:1224: undefined reference to `_imp__xmlStringTextNoenc'
ruby_xml_node.o: In function `rxml_node_lang_get':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:737: undefined reference to `_imp__xmlFree'
ruby_xml_node.o: In function `rxml_node_content_stripped_get':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:433: undefined reference to `_imp__xmlFree'
ruby_xml_node.o: In function `rxml_node_content_get':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:385: undefined reference to `_imp__xmlFree'
ruby_xml_node.o: In function `rxml_node_base_uri_get':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:341: undefined reference to `_imp__xmlFree'
ruby_xml_node.o: In function `rxml_node_output_escaping_set':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:1257: undefined reference to `_imp__xmlStringText'
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:1257: undefined reference to `_imp__xmlStringTextNoenc'
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:1252: undefined reference to `_imp__xmlStringText'
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_node.c:1252: undefined reference to `_imp__xmlStringTextNoenc'
ruby_xml_parser_context.o: In function `rxml_parser_context_encoding_set':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_parser_context.c:382: undefined reference to `_imp__xmlFree'
ruby_xml_reader.o: In function `rxml_reader_read_string':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_reader.c:596: undefined reference to `_imp__xmlFree'
ruby_xml_reader.o: In function `rxml_reader_read_outer_xml':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_reader.c:558: undefined reference to `_imp__xmlFree'
ruby_xml_reader.o: In function `rxml_reader_read_inner_xml':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_reader.c:532: undefined reference to `_imp__xmlFree'
ruby_xml_reader.o: In function `rxml_reader_lookup_namespace':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_reader.c:986: undefined reference to `_imp__xmlFree'
ruby_xml_reader.o:C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_reader.c:964: more undefined references to `_imp__xmlFree' follow
ruby_xml_sax_parser.o: In function `rxml_sax_parser_parse':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_sax_parser.c:89: undefined reference to `_imp__xmlMalloc'
ruby_xml_schema_attribute.o: In function `rxml_schema_attribute_free':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_schema_attribute.c:10: undefined reference to `_imp__xmlFree'
ruby_xml_schema_element.o: In function `rxml_schema_element_free':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_schema_element.c:10: undefined reference to `_imp__xmlFree'
ruby_xml_schema_facet.o: In function `rxml_schema_facet_free':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_schema_facet.c:9: undefined reference to `_imp__xmlFree'
ruby_xml_schema_type.o: In function `rxml_schema_type_free':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_schema_type.c:15: undefined reference to `_imp__xmlFree'
ruby_xml_schema_type.o: In function `rxmlSchemaCollectElements':
C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_schema_type.c:153: undefined reference to `_imp__xmlFree'
ruby_xml_xpath_context.o:C:\Ruby200\lib\ruby\gems\2.0.0\gems\libxml-ruby-2.8.0\ext\libxml/ruby_xml_xpath_context.c:168: more undefined references to `_imp__xmlFree' follow
collect2.exe: error: ld returned 1 exit status
make: *** [libxml_ruby.so] Error 1