braintree 3.0.0 onward incompatible with JRuby #252
Description
Issue
Cannot install versions 3.0.0 or later of braintree with JRuby due to dependency on libxml-ruby
How to replicate
With any version of JRuby, attempt to install braintree with gem install braintree.
Gives the following output:
$ gem install braintree
Fetching braintree-3.4.0.gem
Building native extensions. This could take a while...
ERROR: Error installing braintree:
ERROR: Failed to build gem native extension.
current directory: C:/jruby-9.2.21.0/lib/ruby/gems/shared/gems/libxml-ruby-5.0.4/ext/libxml
C:/jruby-9.2.21.0/bin/jruby.exe -I C:/jruby-9.2.21.0/lib/ruby/stdlib -r ./siteconf20250618-19088-1wud3mo.rb extconf.rb
checking for libxml/xmlversion.h in /opt/include/libxml2,/opt/local/include/libxml2,/opt/homebrew/opt/libxml2/include/libxml2,/usr/local/include/libxml2,/usr/include/libxml2,/usr/local/include,/usr/local/opt/libxml2/include/libxml2... RuntimeError: The compiler failed to generate an executable file.
You have to install development tools first.
try_do at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:456
try_cpp at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:587
find_header at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:1144
checking_for at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:942
postpone at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:350
open at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:320
postpone at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:350
open at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:320
postpone at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:346
checking_for at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:941
find_header at C:/jruby-9.2.21.0/lib/ruby/stdlib/mkmf.rb:1143
<main> at extconf.rb:28
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=C:/jruby-9.2.21.0/bin/jruby
--with-xml2-config
--without-xml2-config
--with-xml2-dir
--without-xml2-dir
--with-xml2-include
--without-xml2-include=${xml2-dir}/include
--with-xml2-lib
--without-xml2-lib=${xml2-dir}/lib
To see why this extension failed to compile, please check the mkmf.log which can be found here:
C:/jruby-9.2.21.0/lib/ruby/gems/shared/extensions/universal-java-11/2.5.0/libxml-ruby-5.0.4/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in C:/jruby-9.2.21.0/lib/ruby/gems/shared/gems/libxml-ruby-5.0.4 for inspection.
Results logged to C:/jruby-9.2.21.0/lib/ruby/gems/shared/extensions/universal-java-11/2.5.0/libxml-ruby-5.0.4/gem_make.out
mkmf.log contains the following:
" -o conftest.exe -I/include/universal-java11 -IC:/jruby-9.2.21.0/lib/ruby/include/ruby/backward -IC:/jruby-9.2.21.0/lib/ruby/include -I. -fno-omit-frame-pointer -fno-strict-aliasing -fexceptions conftest.c -L. -LC:/jruby-9.2.21.0/lib -LC:/jruby-9.2.21.0/lib/native/x86_64-Windows -m64 -march=native -mtune=native "
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <ruby.h>
4: int main(int argc, char **argv)
5: {
6: return 0;
7: }
/* end */
Proposed fix
Replace libxml-ruby with another XML parser such as nokogiri
Alternatively, use platform-dependant dependencies and/or replace with JRuby implementation such as libxml-jruby