current directory: /home/sho/src/tdiary/core/vendor/bundle/gems/nokogiri-1.8.2/ext/nokogiri
/home/sho/.rbenv/versions/2.6.0-preview1/bin/ruby -r ./siteconf20180327-8334-7fadmo.rb extconf.rb
checking if the C compiler accepts ... yes
Building nokogiri using packaged libraries.
Using mini_portile version 2.3.0
checking for gzdopen() in -lz... yes
checking for iconv... yes
************************************************************************
IMPORTANT NOTICE:

Building Nokogiri with a packaged version of libxml2-2.9.7.

Team Nokogiri will keep on doing their best to provide security
updates in a timely manner, but if this is a concern for you and want
to use the system library instead; abort this installation process and
reinstall nokogiri as follows:

    gem install nokogiri -- --use-system-libraries
        [--with-xml2-config=/path/to/xml2-config]
        [--with-xslt-config=/path/to/xslt-config]

If you are using Bundler, tell it to use the option:

    bundle config build.nokogiri --use-system-libraries
    bundle install

Note, however, that nokogiri is not fully compatible with arbitrary
versions of libxml2 provided by OS/package vendors.
************************************************************************
Extracting libxml2-2.9.7.tar.gz into tmp/x86_64-unknown-linux-gnu/ports/libxml2/2.9.7... OK
Running 'configure' for libxml2 2.9.7... OK
Running 'compile' for libxml2 2.9.7... OK
Running 'install' for libxml2 2.9.7... OK
Activating libxml2 2.9.7 (from /home/sho/src/tdiary/core/vendor/bundle/gems/nokogiri-1.8.2/ports/x86_64-unknown-linux-gnu/libxml2/2.9.7)...
************************************************************************
IMPORTANT NOTICE:

Building Nokogiri with a packaged version of libxslt-1.1.32.

Team Nokogiri will keep on doing their best to provide security
updates in a timely manner, but if this is a concern for you and want
to use the system library instead; abort this installation process and
reinstall nokogiri as follows:

    gem install nokogiri -- --use-system-libraries
        [--with-xml2-config=/path/to/xml2-config]
        [--with-xslt-config=/path/to/xslt-config]

If you are using Bundler, tell it to use the option:

    bundle config build.nokogiri --use-system-libraries
    bundle install
************************************************************************
Extracting libxslt-1.1.32.tar.gz into tmp/x86_64-unknown-linux-gnu/ports/libxslt/1.1.32... OK
Running 'configure' for libxslt 1.1.32... OK
Running 'compile' for libxslt 1.1.32... OK
Running 'install' for libxslt 1.1.32... OK
Activating libxslt 1.1.32 (from /home/sho/src/tdiary/core/vendor/bundle/gems/nokogiri-1.8.2/ports/x86_64-unknown-linux-gnu/libxslt/1.1.32)...
checking for -llzma... yes
checking for xmlParseDoc() in libxml/parser.h... yes
checking for xsltParseStylesheetDoc() in libxslt/xslt.h... yes
checking for exsltFuncRegister() in libexslt/exslt.h... yes
checking for xmlHasFeature()... yes
checking for xmlFirstElementChild()... yes
checking for xmlRelaxNGSetParserStructuredErrors()... yes
checking for xmlRelaxNGSetParserStructuredErrors()... yes
checking for xmlRelaxNGSetValidStructuredErrors()... yes
checking for xmlSchemaSetValidStructuredErrors()... yes
checking for xmlSchemaSetParserStructuredErrors()... yes
creating Makefile

current directory: /home/sho/src/tdiary/core/vendor/bundle/gems/nokogiri-1.8.2/ext/nokogiri
make "DESTDIR=" clean

current directory: /home/sho/src/tdiary/core/vendor/bundle/gems/nokogiri-1.8.2/ext/nokogiri
make "DESTDIR="
compiling html_document.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./html_document.h:4,
                 from html_document.c:1:
html_document.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
html_document.c:16:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "0*", &rest);
   ^
html_document.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling html_element_description.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./html_element_description.h:4,
                 from html_element_description.c:1:
html_element_description.c: In function ‘get_description’:
html_element_description.c:252:40: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
   return Data_Wrap_Struct(klass, 0, 0, (void *)description);
                                        ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:1145:34: note: in definition of macro ‘Data_Wrap_Struct’
     rb_data_object_wrap((klass),(sval),(RUBY_DATA_FUNC)(mark),(RUBY_DATA_FUNC)(free))
                                  ^
html_element_description.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling html_entity_lookup.c
compiling html_sax_parser_context.c
compiling html_sax_push_parser.c
compiling nokogiri.c
compiling xml_attr.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_attr.h:4,
                 from xml_attr.c:1:
xml_attr.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_attr.c:58:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "2*", &document, &name, &rest);
   ^
xml_attr.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_attribute_decl.c
compiling xml_cdata.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_cdata.h:4,
                 from xml_cdata.c:1:
xml_cdata.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_cdata.c:23:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "2*", &doc, &content, &rest);
   ^
xml_cdata.c:28:56: warning: pointer targets in passing argument 1 of ‘strlen’ differ in signedness [-Wpointer-sign]
   content_str_len = (content_str == NULL) ? 0 : strlen(content_str);
                                                        ^
In file included from ./nokogiri.h:5:0,
                 from ./xml_cdata.h:4,
                 from xml_cdata.c:1:
/usr/include/string.h:394:15: note: expected ‘const char *’ but argument is of type ‘const xmlChar * {aka const unsigned char *}’
 extern size_t strlen (const char *__s)
               ^
xml_cdata.c:28:21: warning: conversion to ‘int’ from ‘size_t {aka long unsigned int}’ may alter its value [-Wconversion]
   content_str_len = (content_str == NULL) ? 0 : strlen(content_str);
                     ^
xml_cdata.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_comment.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_comment.h:4,
                 from xml_comment.c:1:
xml_comment.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_comment.c:21:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "2*", &document, &content, &rest);
   ^
xml_comment.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_document.c
xml_document.c: In function ‘set_encoding’:
xml_document.c:182:12: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
       free((char *) doc->encoding); /* this may produce a gcc cast warning */
            ^
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_document.h:4,
                 from xml_document.c:1:
xml_document.c: In function ‘duplicate_document’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_document.c:327:6: note: in expansion of macro ‘rb_scan_args’
   if(rb_scan_args(argc, argv, "01", &level) == 0)
      ^
xml_document.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_document.c:354:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "0*", &rest);
   ^
xml_document.c: In function ‘create_entity’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_document.c:433:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "14", &name, &type, &external_id, &system_id,
   ^
xml_document.c: In function ‘canonicalize’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_document.c:508:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "03", &mode, &incl_ns, &with_comments);
   ^
xml_document.c:535:15: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
       ns[i] = (xmlChar*) ptr;
               ^
xml_document.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_document_fragment.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_document_fragment.h:4,
                 from xml_document_fragment.c:1:
xml_document_fragment.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_document_fragment.c:17:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "1*", &document, &rest);
   ^
xml_document_fragment.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_dtd.c
compiling xml_element_content.c
compiling xml_element_decl.c
compiling xml_encoding_handler.c
compiling xml_entity_decl.c
compiling xml_entity_reference.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_entity_reference.h:4,
                 from xml_entity_reference.c:1:
xml_entity_reference.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_entity_reference.c:18:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "2*", &document, &name, &rest);
   ^
xml_entity_reference.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_io.c
compiling xml_libxml2_hacks.c
compiling xml_namespace.c
xml_namespace.c: In function ‘dealloc_namespace’:
xml_namespace.c:17:13: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
     xmlFree((xmlChar *)ns->href);
             ^
xml_namespace.c:20:13: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
     xmlFree((xmlChar *)ns->prefix);
             ^
xml_namespace.c: In function ‘part_of_an_xpath_node_set_eh’:
xml_namespace.c:67:49: warning: passing argument 1 of ‘Nokogiri_namespace_eh’ from incompatible pointer type [-Wincompatible-pointer-types]
   return (node->next && ! Nokogiri_namespace_eh(node->next));
                                                 ^
xml_namespace.c:27:5: note: expected ‘xmlNodePtr {aka struct _xmlNode *}’ but argument is of type ‘struct _xmlNs *’
 int Nokogiri_namespace_eh(xmlNodePtr node)
     ^
xml_namespace.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_node.c
xml_node.c: In function ‘reparent_node_with’:
xml_node.c:170:7: warning: enumeration value ‘XML_ATTRIBUTE_NODE’ not handled in switch [-Wswitch]
       switch (reparentee->type) {
       ^
xml_node.c:170:7: warning: enumeration value ‘XML_ENTITY_NODE’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_DOCUMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_DOCUMENT_FRAG_NODE’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_NOTATION_NODE’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_HTML_DOCUMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_DTD_NODE’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_ELEMENT_DECL’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_ATTRIBUTE_DECL’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_ENTITY_DECL’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_NAMESPACE_DECL’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_XINCLUDE_START’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_XINCLUDE_END’ not handled in switch [-Wswitch]
xml_node.c:170:7: warning: enumeration value ‘XML_DOCB_DOCUMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_ATTRIBUTE_NODE’ not handled in switch [-Wswitch]
       switch (reparentee->type) {
       ^
xml_node.c:188:7: warning: enumeration value ‘XML_ENTITY_NODE’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_DOCUMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_DOCUMENT_TYPE_NODE’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_DOCUMENT_FRAG_NODE’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_NOTATION_NODE’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_HTML_DOCUMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_DTD_NODE’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_ELEMENT_DECL’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_ATTRIBUTE_DECL’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_ENTITY_DECL’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_NAMESPACE_DECL’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_XINCLUDE_START’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_XINCLUDE_END’ not handled in switch [-Wswitch]
xml_node.c:188:7: warning: enumeration value ‘XML_DOCB_DOCUMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_ELEMENT_NODE’ not handled in switch [-Wswitch]
       switch (reparentee->type) {
       ^
xml_node.c:199:7: warning: enumeration value ‘XML_ATTRIBUTE_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_CDATA_SECTION_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_ENTITY_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_PI_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_COMMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_DOCUMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_DOCUMENT_TYPE_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_DOCUMENT_FRAG_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_NOTATION_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_HTML_DOCUMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_DTD_NODE’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_ELEMENT_DECL’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_ATTRIBUTE_DECL’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_ENTITY_DECL’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_NAMESPACE_DECL’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_XINCLUDE_START’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_XINCLUDE_END’ not handled in switch [-Wswitch]
xml_node.c:199:7: warning: enumeration value ‘XML_DOCB_DOCUMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_CDATA_SECTION_NODE’ not handled in switch [-Wswitch]
     switch (parent->type) {
     ^
xml_node.c:167:5: warning: enumeration value ‘XML_ENTITY_NODE’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_PI_NODE’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_COMMENT_NODE’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_DOCUMENT_TYPE_NODE’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_NOTATION_NODE’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_DTD_NODE’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_ELEMENT_DECL’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_ATTRIBUTE_DECL’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_ENTITY_DECL’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_NAMESPACE_DECL’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_XINCLUDE_START’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_XINCLUDE_END’ not handled in switch [-Wswitch]
xml_node.c:167:5: warning: enumeration value ‘XML_DOCB_DOCUMENT_NODE’ not handled in switch [-Wswitch]
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_node.h:4,
                 from xml_node.c:1:
xml_node.c: In function ‘duplicate_node’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_node.c:501:6: note: in expansion of macro ‘rb_scan_args’
   if(rb_scan_args(argc, argv, "01", &level) == 0)
      ^
xml_node.c: In function ‘get’:
xml_node.c:847:11: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
   colon = (xmlChar *)xmlStrchr(attribute, (const xmlChar)':');
           ^
xml_node.c:865:11: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
   xmlFree((void *)attribute);
           ^
xml_node.c:869:11: warning: cast discards ‘const’ qualifier from pointer target type [-Wcast-qual]
   xmlFree((void *)value);
           ^
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_node.h:4,
                 from xml_node.c:1:
xml_node.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_node.c:1327:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "2*", &name, &document, &rest);
   ^
xml_node.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_node_set.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_node_set.h:4,
                 from xml_node_set.c:1:
xml_node_set.c: In function ‘slice’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_node_set.c:293:5: note: in expansion of macro ‘rb_scan_args’
     rb_scan_args(argc, argv, "11", NULL, NULL);
     ^
xml_node_set.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_processing_instruction.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_processing_instruction.h:4,
                 from xml_processing_instruction.c:1:
xml_processing_instruction.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_processing_instruction.c:20:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "3*", &document, &name, &content, &rest);
   ^
xml_processing_instruction.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_reader.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_reader.h:4,
                 from xml_reader.c:1:
xml_reader.c: In function ‘from_memory’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_reader.c:533:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "13", &rb_buffer, &rb_url, &encoding, &rb_options);
   ^
xml_reader.c: In function ‘from_io’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_reader.c:577:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "13", &rb_io, &rb_url, &encoding, &rb_options);
   ^
xml_reader.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_relax_ng.c
compiling xml_sax_parser.c
compiling xml_sax_parser_context.c
compiling xml_sax_push_parser.c
compiling xml_schema.c
compiling xml_syntax_error.c
compiling xml_text.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_text.h:4,
                 from xml_text.c:1:
xml_text.c: In function ‘new’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_text.c:18:3: note: in expansion of macro ‘rb_scan_args’
   rb_scan_args(argc, argv, "2*", &string, &document, &rest);
   ^
xml_text.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xml_xpath_context.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xml_xpath_context.h:4,
                 from xml_xpath_context.c:1:
xml_xpath_context.c: In function ‘evaluate’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xml_xpath_context.c:200:6: note: in expansion of macro ‘rb_scan_args’
   if(rb_scan_args(argc, argv, "11", &search_path, &xpath_handler) == 1)
      ^
xml_xpath_context.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
compiling xslt_stylesheet.c
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xslt_stylesheet.h:4,
                 from xslt_stylesheet.c:1:
xslt_stylesheet.c: In function ‘transform’:
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2249:5: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
     ((varc)/(rb_scan_args_count(fmt, varc)))
     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2257:11: note: in expansion of macro ‘rb_scan_args_verify_count’
  verify = rb_scan_args_verify_count(fmt, varc); \
           ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2372:9: note: in expansion of macro ‘rb_scan_args_verify’
        (rb_scan_args_verify(fmt, varc), vars))
         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:2199:9: note: in expansion of macro ‘rb_scan_args0’
         rb_scan_args0(argc,argvp,fmt,\
         ^
xslt_stylesheet.c:141:5: note: in expansion of macro ‘rb_scan_args’
     rb_scan_args(argc, argv, "11", &xmldoc, &paramobj);
     ^
In file included from /home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby.h:33:0,
                 from ./nokogiri.h:33,
                 from ./xslt_stylesheet.h:4,
                 from xslt_stylesheet.c:1:
xslt_stylesheet.c: In function ‘initFunc’:
xslt_stylesheet.c:217:21: warning: passing argument 1 of ‘rb_data_object_get’ makes integer from pointer without a cast [-Wint-conversion]
     Data_Get_Struct(ctxt->style->_private, nokogiriXsltStylesheetTuple,
                     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:1183:41: note: in definition of macro ‘Data_Get_Struct’
     ((sval) = (type*)rb_data_object_get(obj))
                                         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:1354:1: note: expected ‘VALUE {aka long unsigned int}’ but argument is of type ‘void *’
 rb_data_object_get(VALUE obj)
 ^
xslt_stylesheet.c: In function ‘shutdownFunc’:
xslt_stylesheet.c:230:21: warning: passing argument 1 of ‘rb_data_object_get’ makes integer from pointer without a cast [-Wint-conversion]
     Data_Get_Struct(ctxt->style->_private, nokogiriXsltStylesheetTuple,
                     ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:1183:41: note: in definition of macro ‘Data_Get_Struct’
     ((sval) = (type*)rb_data_object_get(obj))
                                         ^
/home/sho/.rbenv/versions/2.6.0-preview1/include/ruby-2.6.0/ruby/ruby.h:1354:1: note: expected ‘VALUE {aka long unsigned int}’ but argument is of type ‘void *’
 rb_data_object_get(VALUE obj)
 ^
xslt_stylesheet.c: At top level:
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
linking shared-object nokogiri/nokogiri.so
Cleaning files only used during build.
rm -rf /home/sho/src/tdiary/core/vendor/bundle/gems/nokogiri-1.8.2/ext/nokogiri/tmp/x86_64-unknown-linux-gnu/ports
rm -rf /home/sho/src/tdiary/core/vendor/bundle/gems/nokogiri-1.8.2/ports

current directory: /home/sho/src/tdiary/core/vendor/bundle/gems/nokogiri-1.8.2/ext/nokogiri
make "DESTDIR=" install
/usr/bin/install -c -m 0755 nokogiri.so ./.gem.20180327-8334-k4rf6d/nokogiri