From 68cb69ea68822d96eee6d6104463edf85e70d689 Mon Sep 17 00:00:00 2001
From: James D <jamesgecko@users.noreply.github.com>
Date: Mon, 12 Apr 2021 13:06:44 -0400
Subject: [PATCH] Fix source gem compilation (#8471)

* Select appropriate protoc binary for gem build

This should allow gem installation when
`bundle config force_ruby_platform true` has been set.

It has the unfortunate side effect of printing the protoc version during
build, but a quiet cross-platform solution is more complicated.

* Add path to wyhash header for source gem compilation
---
 ruby/Rakefile                         | 28 ++++++++++++++++-----------
 ruby/ext/google/protobuf_c/extconf.rb |  1 +
 2 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/ruby/Rakefile b/ruby/Rakefile
index 3e3da055d3f2..11397b0eb94f 100644
--- a/ruby/Rakefile
+++ b/ruby/Rakefile
@@ -24,6 +24,12 @@ proto2_protos = %w[
   google/protobuf/compiler/plugin.proto
 ]
 
+if system('../src/protoc --version')
+  protoc_command = '../src/protoc' 
+else
+  protoc_command = 'protoc' 
+end
+
 genproto_output = []
 
 # We won't have access to .. from within docker, but the proto files
@@ -34,7 +40,7 @@ unless ENV['IN_DOCKER'] == 'true'
     output_file = "lib/" + proto_file.sub(/\.proto$/, "_pb.rb")
     genproto_output << output_file
     file output_file => input_file do |file_task|
-      sh "../src/protoc -I../src --ruby_out=lib #{input_file}"
+      sh "#{protoc_command} -I../src --ruby_out=lib #{input_file}"
     end
   end
 end
@@ -108,43 +114,43 @@ genproto_output << "tests/multi_level_nesting_test.rb"
 genproto_output << "tests/wrappers.rb"
 
 file "tests/generated_code.rb" => "tests/generated_code.proto" do |file_task|
-  sh "../src/protoc --ruby_out=. tests/generated_code.proto"
+  sh "#{protoc_command} --ruby_out=. tests/generated_code.proto"
 end
 
 file "tests/generated_code_proto2.rb" => "tests/generated_code_proto2.proto" do |file_task|
-  sh "../src/protoc --ruby_out=. tests/generated_code_proto2.proto"
+  sh "#{protoc_command} --ruby_out=. tests/generated_code_proto2.proto"
 end
 
 file "tests/test_import.rb" => "tests/test_import.proto" do |file_task|
-  sh "../src/protoc --ruby_out=. tests/test_import.proto"
+  sh "#{protoc_command} --ruby_out=. tests/test_import.proto"
 end
 
 file "tests/test_import_proto2.rb" => "tests/test_import_proto2.proto" do |file_task|
-  sh "../src/protoc --ruby_out=. tests/test_import_proto2.proto"
+  sh "#{protoc_command} --ruby_out=. tests/test_import_proto2.proto"
 end
 
 file "tests/test_ruby_package.rb" => "tests/test_ruby_package.proto" do |file_task|
-  sh "../src/protoc --ruby_out=. tests/test_ruby_package.proto"
+  sh "#{protoc_command} --ruby_out=. tests/test_ruby_package.proto"
 end
 
 file "tests/test_ruby_package_proto2.rb" => "tests/test_ruby_package_proto2.proto" do |file_task|
-  sh "../src/protoc --ruby_out=. tests/test_ruby_package_proto2.proto"
+  sh "#{protoc_command} --ruby_out=. tests/test_ruby_package_proto2.proto"
 end
 
 file "tests/basic_test.rb" => "tests/basic_test.proto" do |file_task|
-  sh "../src/protoc --experimental_allow_proto3_optional -I../src -I. --ruby_out=. tests/basic_test.proto"
+  sh "#{protoc_command} --experimental_allow_proto3_optional -I../src -I. --ruby_out=. tests/basic_test.proto"
 end
 
 file "tests/basic_test_proto2.rb" => "tests/basic_test_proto2.proto" do |file_task|
-  sh "../src/protoc -I../src -I. --ruby_out=. tests/basic_test_proto2.proto"
+  sh "#{protoc_command} -I../src -I. --ruby_out=. tests/basic_test_proto2.proto"
 end
 
 file "tests/multi_level_nesting_test.rb" => "tests/multi_level_nesting_test.proto" do |file_task|
-  sh "../src/protoc -I../src -I. --ruby_out=. tests/multi_level_nesting_test.proto"
+  sh "#{protoc_command} -I../src -I. --ruby_out=. tests/multi_level_nesting_test.proto"
 end
 
 file "tests/wrappers.rb" => "../src/google/protobuf/wrappers.proto" do |file_task|
-  sh "../src/protoc -I../src -I. --ruby_out=tests ../src/google/protobuf/wrappers.proto"
+  sh "#{protoc_command} -I../src -I. --ruby_out=tests ../src/google/protobuf/wrappers.proto"
 end
 
 task :genproto => genproto_output
diff --git a/ruby/ext/google/protobuf_c/extconf.rb b/ruby/ext/google/protobuf_c/extconf.rb
index ec17787f79fd..eaab4db74f30 100755
--- a/ruby/ext/google/protobuf_c/extconf.rb
+++ b/ruby/ext/google/protobuf_c/extconf.rb
@@ -17,4 +17,5 @@
 $objs = ["protobuf.o", "convert.o", "defs.o", "message.o",
          "repeated_field.o", "map.o", "ruby-upb.o", "wrap_memcpy.o"]
 
+find_header('third_party/wyhash/wyhash.h', '../../../..')
 create_makefile("google/protobuf_c")