Issue #13184 has been reported by alex polcyn. ---------------------------------------- Feature #13184: unused parameter in ruby.h - native ruby extension compilation failure on ruby 2.4 https://bugs.ruby-lang.org/issues/13184 * Author: alex polcyn * Status: Open * Priority: Normal * Assignee: * Target version: ---------------------------------------- platform and version: x86_64-darwin14 2.4.0 When compiling a ruby c-extension on the above ruby platform and version, the compilation fails with an error: In file included from ../../../../src/ruby/ext/grpc/rb_byte_buffer.c:34: /usr/local/rvm/rubies/ruby-2.4.0/include/ruby-2.4.0/ruby/ruby.h:2339:8: error: unused parameter 'varc' [-Werror,-Wunused-parameter] int varc, VALUE *vars[]) To reproduce: With ruby on the above platform and version: > git clone https://github.com/grpc/grpc.git > git checkout 26623b3d77ae78e66f66b (tip of master at current time of posting) > cd grpc && git submodule update --init > gem install bundle > BUNDLE_SPECIFIC_PLATFORM=true bundle install # bundle install crashes on this platform, BUNDLE_SPECIFIC_PLATFORM followed as a work around, followed suggestion in: https://github.com/bundler/bundler/issues/3692 > rake compile Compilation should failure with the error above. An example failure log is posted. We're using rake-compiler gem to compile the grpc-ruby gem native extension. The extconf.rb Makefile generator is in grpc/src/ruby/ext/grpc/extconf.rb -- this file currently sets -Werror as a compilation option. We're planning to remove it for the time being as work around but would like to put it back in. ---Files-------------------------------- log (76.2 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:ruby-core-request / ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>