[DRE-maint] Bug#892236: ruby-grpc: FTBFS on powerpc (big-endian): Unable to add defs to DescriptorPool

[Aaron M. Ucko]

Source: ruby-grpc
Version: 1.3.2+debian-4
Severity: normal
Tags: upstream
User: debian-powerpc at lists.debian.org
Usertags: powerpc

Builds of ruby-grpc for powerpc (the only big-endian architecture on
which its build dependencies are all available, though admittedly not
a release architecture) have been failing, as detailed in [1]:

  An error occurred while loading /«BUILDDIR»/ruby-grpc-1.3.2+debian/src/ruby/spec/pb/health/checker_spec.rb.
  Failure/Error:
    Google::Protobuf::DescriptorPool.generated_pool.build do
      add_message "grpc.health.v1.HealthCheckRequest" do
        optional :service, :string, 1
      end
      add_message "grpc.health.v1.HealthCheckResponse" do
        optional :status, :enum, 1, "grpc.health.v1.HealthCheckResponse.ServingStatus"
      end
      add_enum "grpc.health.v1.HealthCheckResponse.ServingStatus" do
        value :UNKNOWN, 0
        value :SERVING, 1
  
  RuntimeError:
    Unable to add defs to DescriptorPool: couldn't resolve name '.grpc.health.v1.HealthCheckResponse.ServingStatus' in message 'grpc.health.v1.HealthCheckResponse'

Could you please take a look?

Thanks!

[1] https://buildd.debian.org/status/fetch.php?pkg=ruby-grpc&arch=powerpc&ver=1.3.2%2Bdebian-4&stamp=1519229357&raw=0

-- 
Aaron M. Ucko, KB1CJC (amu at alum.mit.edu, ucko at debian.org)
http://www.mit.edu/~amu/ | http://stuff.mit.edu/cgi/finger/?amu@monk.mit.edu