support static linkage for dependencies

build.yaml

@@ -797,8 +797,9 @@ libs:
   src:
   - src/csharp/ext/grpc_csharp_ext.c
   deps:
-  - gpr
   - grpc
+  - gpr
+  deps_linkage: static
   dll: only
   vs_config_type: DynamicLibrary
   vs_packages:

templates/Makefile.template

@@ -1645,6 +1645,13 @@
     if lib.language == 'c++':
       lib_deps += ' $(PROTOBUF_DEP)'
       mingw_lib_deps += ' $(PROTOBUF_DEP)'
+    if lib.get('deps_linkage', None) == 'static':
+      for dep in lib.get('deps', []):
+        lib_archive = '$(LIBDIR)/$(CONFIG)/lib' + dep + '.a'
+        common = common + ' ' + lib_archive
+        lib_deps = lib_deps + ' ' + lib_archive
+        mingw_lib_deps = mingw_lib_deps + ' ' + lib_archive
+    else:
       for dep in lib.get('deps', []):
         libs = libs + ' -l' + dep
         lib_deps = lib_deps + ' $(LIBDIR)/$(CONFIG)/lib' + dep + '.$(SHARED_EXT)'