extconf.rb in libxml-ruby-0.5.0

- old
+ new

@@ -35,18 +35,21 @@
   end
   $CFLAGS = saveflags
 end
 
 unless have_library('z', 'inflate') or
+       have_library('zlib', 'inflate') or
        have_library('zlib1', 'inflate')
   crash('need zlib')
 else
   $defs.push('-DHAVE_ZLIB_H')
 end
 
 unless have_library('iconv','iconv_open') or 
        have_library('iconv','libiconv_open') or
+       have_library('libiconv', 'libiconv_open') or
+       have_library('libiconv', 'iconv_open') or
        have_library('c','iconv_open') or
        have_library('recode','iconv_open') or
        have_library('iconv')
   crash(<<EOL)
 need libiconv.
@@ -78,19 +81,15 @@
         --with-xml2-lib=/path/to/libxml2/lib
         --with-xml2-include=/path/to/libxml2/include
 EOL
 end
 
-unless have_library('xml2', 'xmlDocFormatDump')
+unless have_func('xmlDocFormatDump')
   crash('Your version of libxml2 is too old.  Please upgrade.')
 end
 
 unless have_func('docbCreateFileParserCtxt')
   crash('Need docbCreateFileParserCtxt')
-end
-
-if try_compile('int main() { return 0; }','-Wall')
-  $CFLAGS << ' -Wall'
 end
 
 $CFLAGS << ' ' << $INCFLAGS
 $INSTALLFILES = [["libxml.rb", "$(RUBYLIBDIR)", "../xml"]]
 