Enable C++ standard library

config.m4

@@ -24,8 +24,10 @@ if test "$PHP_GRPC" != "no"; then
 
   case $host in
     *darwin*)
+      PHP_ADD_LIBRARY(c++,1,GRPC_SHARED_LIBADD)
       ;;
     *)
+      PHP_ADD_LIBRARY(stdc++,1,GRPC_SHARED_LIBADD)
       PHP_ADD_LIBRARY(rt,,GRPC_SHARED_LIBADD)
       PHP_ADD_LIBRARY(rt)
       ;;

include/grpc/impl/codegen/port_platform.h

@@ -32,8 +32,7 @@
  * in-house library if possible. (e.g. std::map)
  */
 #ifndef GRPC_USE_CPP_STD_LIB
-/* Default value will be 1 once all tests become green. */
-#define GRPC_USE_CPP_STD_LIB 0
+#define GRPC_USE_CPP_STD_LIB 1
 #endif
 
 /* Get windows.h included everywhere (we need it) */

src/php/ext/grpc/config.m4

@@ -42,7 +42,8 @@ if test "$PHP_GRPC" != "no"; then
   dnl  PHP_ADD_LIBRARY(pthread,,GRPC_SHARED_LIBADD)
   GRPC_SHARED_LIBADD="-lpthread $GRPC_SHARED_LIBADD"
   PHP_ADD_LIBRARY(pthread)
-
+  PHP_ADD_LIBRARY(stdc++,,GRPC_SHARED_LIBADD)
+  PHP_ADD_LIBRARY(stdc++)
   PHP_ADD_LIBRARY(dl,,GRPC_SHARED_LIBADD)
   PHP_ADD_LIBRARY(dl)
 

src/ruby/ext/grpc/rb_enable_cpp.cc

@@ -0,0 +1,22 @@
+/*
+ *
+ * Copyright 2019 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <ruby/ruby.h>
+
+// This is a dummy C++ source file to trigger ruby extension builder to
+// pick C++ rather than C linker to link with c++ library properly.

templates/CMakeLists.txt.template

@@ -174,11 +174,6 @@
   endif()
 
   if (_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_IOS)
-    # C core has C++ source code, but should not depend on libstc++ (for better portability).
-    # We need to use a few tricks to convince cmake to do that.
-    # https://stackoverflow.com/questions/15058403/how-to-stop-cmake-from-linking-against-libstdc
-    set(CMAKE_CXX_IMPLICIT_LINK_LIBRARIES "")
-    # Exceptions and RTTI must be off to avoid dependency on libstdc++
     set(_gRPC_CORE_NOSTDCXX_FLAGS -fno-exceptions -fno-rtti)
   else()
     set(_gRPC_CORE_NOSTDCXX_FLAGS "")
@@ -444,14 +439,6 @@
     PRIVATE <%text>${_gRPC_PROTO_GENS_DIR}</%text>
   % endif
   )
-  % if lib.language in ['c', 'csharp']:
-    # avoid dependency on libstdc++
-    if (_gRPC_CORE_NOSTDCXX_FLAGS)
-      set_target_properties(${lib.name} PROPERTIES LINKER_LANGUAGE C)
-      # only use the flags for C++ source files
-      target_compile_options(${lib.name} PRIVATE <%text>$<$<COMPILE_LANGUAGE:CXX>:${_gRPC_CORE_NOSTDCXX_FLAGS}></%text>)
-    endif()
-  % endif
   % if len(get_deps(lib)) > 0:
   target_link_libraries(${lib.name}
   % for dep in get_deps(lib):
@@ -550,13 +537,6 @@
   % endfor
   )
 
-  % if tgt.language in ['c', 'csharp']:
-    # avoid dependency on libstdc++
-    if (_gRPC_CORE_NOSTDCXX_FLAGS)
-      set_target_properties(${tgt.name} PROPERTIES LINKER_LANGUAGE C)
-      target_compile_options(${tgt.name} PRIVATE <%text>$<$<COMPILE_LANGUAGE:CXX>:${_gRPC_CORE_NOSTDCXX_FLAGS}></%text>)
-    endif()
-  % endif
   % endif
   </%def>
 

templates/Makefile.template

@@ -1588,7 +1588,7 @@
     if lib.language == 'c++':
       ld = '$(LDXX)'
     else:
-      ld = '$(LD)'
+      ld = '$(LDXX)'
 
     out_mingbase = '$(LIBDIR)/$(CONFIG)/' + lib.name + '$(SHARED_VERSION_' + lang_to_var[lib.language] + ')'
     out_libbase = '$(LIBDIR)/$(CONFIG)/lib' + lib.name + '$(SHARED_VERSION_' + lang_to_var[lib.language] + ')'
@@ -1781,7 +1781,7 @@
   ## C-only targets specificities.
   	$(E) "[LD]      Linking $@"
   	$(Q) mkdir -p `dirname $@`
-  	$(Q) $(LD) $(LDFLAGS) \
+  	$(Q) $(LDXX) $(LDFLAGS) \
   % if not has_no_sources:
   $(${tgt.name.upper()}_OBJS)\
   % endif

templates/config.m4.template

@@ -26,8 +26,10 @@
 
     case $host in
       *darwin*)
+        PHP_ADD_LIBRARY(c++,1,GRPC_SHARED_LIBADD)
         ;;
       *)
+        PHP_ADD_LIBRARY(stdc++,1,GRPC_SHARED_LIBADD)
         PHP_ADD_LIBRARY(rt,,GRPC_SHARED_LIBADD)
         PHP_ADD_LIBRARY(rt)
         ;;