2.3.0 fails to compile on OS X

[jeanmartin]

libxml2 (2.7.8) is installed via homebrew

gem install libxml-ruby -v '2.3.0'

Building native extensions.  This could take a while...
ERROR:  Error installing libxml-ruby:
    ERROR: Failed to build gem native extension.

        /Users/jan/.rvm/rubies/ree-1.8.7-2012.01/bin/ruby extconf.rb
checking for socket() in -lsocket... no
checking for gethostbyname() in -lnsl... no
checking for atan() in -lm... no
checking for atan() in -lm... yes
checking for inflate() in -lz... yes
checking for iconv_open() in -liconv... yes
checking for xmlParseDoc() in -lxml2... yes
checking for libxml/xmlversion.h... yes
creating extconf.h
creating Makefile

make
/usr/bin/gcc-4.2  -I. -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -g -O2  -pipe -fno-common  -I/usr/include/libxml2 -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include  -c libxml.c
/usr/bin/gcc-4.2  -I. -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -g -O2  -pipe -fno-common  -I/usr/include/libxml2 -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include  -c ruby_xml.c
/usr/bin/gcc-4.2  -I. -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -g -O2  -pipe -fno-common  -I/usr/include/libxml2 -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include  -c ruby_xml_attr.c
/usr/bin/gcc-4.2  -I. -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -g -O2  -pipe -fno-common  -I/usr/include/libxml2 -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include  -c ruby_xml_attr_decl.c
/usr/bin/gcc-4.2  -I. -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -g -O2  -pipe -fno-common  -I/usr/include/libxml2 -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include  -c ruby_xml_attributes.c
/usr/bin/gcc-4.2  -I. -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -g -O2  -pipe -fno-common  -I/usr/include/libxml2 -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include  -c ruby_xml_cbg.c
/usr/bin/gcc-4.2  -I. -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -g -O2  -pipe -fno-common  -I/usr/include/libxml2 -I/opt/local/include -I. -I/Users/jan/.rvm/rubies/ree-1.8.7-2012.01/lib/ruby/1.8/i686-darwin11.3.0 -I. -I/usr/local/include  -c ruby_xml_document.c
ruby_xml_document.c: In function ‘rxml_document_canonicalize’:
ruby_xml_document.c:202: error: ‘XML_C14N_1_0’ undeclared (first use in this function)
ruby_xml_document.c:202: error: (Each undeclared identifier is reported only once
ruby_xml_document.c:202: error: for each function it appears in.)
ruby_xml_document.c:328: warning: passing argument 4 of ‘xmlC14NDocDumpMemory’ from incompatible pointer type
ruby_xml_document.c: In function ‘rxml_init_document’:
ruby_xml_document.c:1100: error: ‘XML_C14N_1_0’ undeclared (first use in this function)
ruby_xml_document.c:1102: error: ‘XML_C14N_EXCLUSIVE_1_0’ undeclared (first use in this function)
make: *** [ruby_xml_document.o] Error 1

[javve]

I'm getting the same error. Running ruby-1.9.2p290 in rvm, on OSX Lion.

[cfis]

Hey guys - must be due to an older version of libxml installed. Will update the gem and cut a new release to fix the problem. Thanks for the report.

[cfis]

Ok, pushed a new version, 2.3.1. See if this solves the issue.

[baldowl]

Sorry, but no, I'm still getting the same error.

[cfis]

With 2.3.1? Can you paste the backtrace in here please?

Also, what version of OSX and what version of libxml?

[baldowl]

You're right, I've not been very clear. Here's the missing informations:

• OS X version: 10.7.3;
• Ruby version: 1.8.7 as shipped by Apple;
• libxml version: 2.7.3.

ERROR:  Error installing libxml-ruby:
    ERROR: Failed to build gem native extension.

        /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
checking for socket() in -lsocket... no
checking for gethostbyname() in -lnsl... no
checking for atan() in -lm... no
checking for atan() in -lm... yes
checking for inflate() in -lz... yes
checking for iconv_open() in -liconv... yes
checking for xmlParseDoc() in -lxml2... yes
checking for libxml/xmlversion.h... yes
creating extconf.h
creating Makefile

make
gcc -I. -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common  -I/usr/include/libxml2 -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include  -c libxml.c
gcc -I. -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common  -I/usr/include/libxml2 -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include  -c ruby_xml.c
gcc -I. -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common  -I/usr/include/libxml2 -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include  -c ruby_xml_attr.c
gcc -I. -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common  -I/usr/include/libxml2 -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include  -c ruby_xml_attr_decl.c
gcc -I. -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common  -I/usr/include/libxml2 -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include  -c ruby_xml_attributes.c
gcc -I. -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common  -I/usr/include/libxml2 -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include  -c ruby_xml_cbg.c
gcc -I. -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include -DRUBY_EXTCONF_H=\"extconf.h\"  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE  -fno-common  -pipe -fno-common  -I/usr/include/libxml2 -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -I/usr/local/include  -c ruby_xml_document.c
ruby_xml_document.c: In function ‘rxml_document_canonicalize’:
ruby_xml_document.c:207: error: ‘XML_C14N_1_0’ undeclared (first use in this function)
ruby_xml_document.c:207: error: (Each undeclared identifier is reported only once
ruby_xml_document.c:207: error: for each function it appears in.)
ruby_xml_document.c:333: warning: passing argument 4 of ‘xmlC14NDocDumpMemory’ from incompatible pointer type
ruby_xml_document.c: In function ‘rxml_init_document’:
ruby_xml_document.c:1105: error: ‘XML_C14N_1_0’ undeclared (first use in this function)
ruby_xml_document.c: In function ‘rxml_document_canonicalize’:
ruby_xml_document.c:207: error: ‘XML_C14N_1_0’ undeclared (first use in this function)
ruby_xml_document.c:207: error: (Each undeclared identifier is reported only once
ruby_xml_document.c:207: error: for each function it appears in.)
ruby_xml_document.c:333: warning: passing argument 4 of ‘xmlC14NDocDumpMemory’ from incompatible pointer type
ruby_xml_document.c: In function ‘rxml_init_document’:
ruby_xml_document.c:1105: error: ‘XML_C14N_1_0’ undeclared (first use in this function)
lipo: can't open input file: /var/tmp//ccqUGywO.out (No such file or directory)
make: *** [ruby_xml_document.o] Error 1

[cfis]

Ah, I see what I did wrong - and thanks for the info. Can you try this:

1. cd to where the gem files are installed at (/usr/lib/ruby/gems...)
2. open ruby_xml_document.c
3. Go to line 151. Add this: #define XML_C14N_1_0 0
   So:

#ifndef XML_C14N_1_0
#define XML_C14N_1_0 0
#define XML_C14N_EXCLUSIVE_1_0 XML_C14N_1_0
#define XML_C14N_1_1 XML_C14N_1_0
#endif

Then ruby extconf.rb
make

Hopefully that should fix the compile issue.

[baldowl]

With that new define compilation ended successfully. Thanks for your support :-)

[cfis]

No problem - thanks for the report.

[carpodaster]

I noticed that this was isn't yet included in master. Is it somewhat destructive in other build environments? Besides the fact that it does indeed fix the build problems on OS X 10.7, I could still build the gem on Ubuntu 12.04 w/ libxml2 2.7.8.