RethinkDB native connector work, minor fixes.

ext/librethinkdbxx/Makefile

@@ -0,0 +1,126 @@
+# Customisable build settings
+
+CXX ?= clang++
+CXXFLAGS ?=
+INCLUDE_PYTHON_DOCS ?= no
+DEBUG ?= no
+PYTHON ?= python3
+
+# Required build settings
+
+ifneq (no,$(DEBUG))
+  CXXFLAGS += -ggdb
+else
+  CXXFLAGS += -O3 # -flto
+endif
+
+CXXFLAGS += -std=c++11 -I'build/gen' -Wall -pthread -fPIC
+
+prefix ?= /usr
+DESTDIR ?=
+
+.DELETE_ON_ERROR:
+SHELL := /bin/bash
+
+modules := connection datum json term cursor types utils
+headers := utils error exceptions types datum connection cursor term
+
+o_files := $(patsubst %, build/obj/%.o, $(modules))
+d_files := $(patsubst %, build/dep/%.d, $(modules))
+
+skip_tests := regression/1133 regression/767 regression/1005 # python-only
+skip_tests += arity # arity errors are compile-time
+skip_tests += geo # geo types not implemented yet
+skip_tests += limits # possibly broken tests: https://github.com/rethinkdb/rethinkdb/issues/5940
+
+upstream_tests := \
+  $(filter-out %.rb.%, \
+    $(filter-out $(patsubst %,test/upstream/%%, $(skip_tests)), \
+      $(filter test/upstream/$(test_filter)%, \
+        $(shell find test/upstream -name '*.yaml' | egrep -v '.(rb|js).yaml$$'))))
+upstream_tests_cc := $(patsubst %.yaml, build/tests/%.cc, $(upstream_tests))
+upstream_tests_o := $(patsubst %.cc, %.o, $(upstream_tests_cc))
+
+.PRECIOUS: $(upstream_tests_cc) $(upstream_tests_o)
+
+default: build/librethinkdb++.a build/include/rethinkdb.h build/librethinkdb++.so
+
+all: default build/test
+
+build/librethinkdb++.a: $(o_files)
+	ar rcs $@ $^
+
+build/librethinkdb++.so: $(o_files)
+	$(CXX) -o $@ $(CXXFLAGS) -shared $^
+
+build/obj/%.o: src/%.cc build/gen/protocol_defs.h
+	@mkdir -p $(dir $@)
+	@mkdir -p $(dir build/dep/$*.d)
+	$(CXX) -o $@ $(CXXFLAGS) -c $< -MP -MQ $@ -MD -MF build/dep/$*.d
+
+build/gen/protocol_defs.h: reql/ql2.proto reql/gen.py | build/gen/.
+	$(PYTHON) reql/gen.py $< > $@
+
+clean:
+	rm -rf build
+
+ifneq (no,$(INCLUDE_PYTHON_DOCS))
+build/include/rethinkdb.h: build/rethinkdb.nodocs.h reql/add_docs.py reql/python_docs.txt | build/include/.
+	$(PYTHON) reql/add_docs.py reql/python_docs.txt < $< > $@
+else
+build/include/rethinkdb.h: build/rethinkdb.nodocs.h | build/include/.
+	cp $< $@
+endif
+
+build/rethinkdb.nodocs.h: build/gen/protocol_defs.h $(patsubst %, src/%.h, $(headers))
+	( echo "// Auto-generated file, built from $^"; \
+	  echo '#pragma once'; \
+	  cat $^ | \
+	    grep -v '^#pragma once' | \
+	    grep -v '^#include "'; \
+	) > $@
+
+build/tests/%.cc: %.yaml test/yaml_to_cxx.py
+	@mkdir -p $(dir $@)
+	$(PYTHON) test/yaml_to_cxx.py $< > $@
+
+build/tests/upstream_tests.cc: $(upstream_tests) test/gen_index_cxx.py FORCE | build/tests/.
+	@echo '$(PYTHON) test/gen_index_cxx.py $(wordlist 1,5,$(upstream_tests)) ... > $@'
+	@$(PYTHON) test/gen_index_cxx.py $(upstream_tests) > $@
+
+build/tests/%.o: build/tests/%.cc build/include/rethinkdb.h test/testlib.h | build/tests/.
+	$(CXX) -o $@ $(CXXFLAGS) -isystem build/include -I test -c $< -Wno-unused-variable
+
+build/tests/%.o: test/%.cc test/testlib.h build/include/rethinkdb.h | build/tests/.
+	$(CXX) -o $@ $(CXXFLAGS) -isystem build/include -I test -c $<
+
+build/test: build/tests/testlib.o build/tests/test.o build/tests/upstream_tests.o $(upstream_tests_o) build/librethinkdb++.a
+	@echo $(CXX) -o $@ $(CXXFLAGS) $(wordlist 1,5,$^) ...
+	@$(CXX) -o $@ $(CXXFLAGS) build/librethinkdb++.a $^
+
+.PHONY: test
+test: build/test
+	build/test
+
+build/bench: build/tests/bench.o build/librethinkdb++.a
+	@$(CXX) -o $@ $(CXXFLAGS) -isystem build/include build/librethinkdb++.a $^
+
+.PHONY: bench
+bench: build/bench
+	build/bench
+
+.PHONY: install
+install: build/librethinkdb++.a build/include/rethinkdb.h build/librethinkdb++.so
+	install -m755 -d $(DESTDIR)$(prefix)/lib
+	install -m755 -d $(DESTDIR)$(prefix)/include
+	install -m644 build/librethinkdb++.a $(DESTDIR)$(prefix)/lib/librethinkdb++.a
+	install -m644 build/librethinkdb++.so $(DESTDIR)$(prefix)/lib/librethinkdb++.so
+	install -m644 build/include/rethinkdb.h $(DESTDIR)$(prefix)/include/rethinkdb.h
+
+%/.:
+	mkdir -p $*
+
+.PHONY: FORCE
+FORCE:
+
+-include $(d_files)