allow using gRPC as a cmake subproject
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 96ece1f..f8b8864 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,9 +5,6 @@
# This file can be regenerated from the template by running
# tools/buildgen/generate_projects.sh
#
-# Additionally, this is currently very experimental, and unsupported.
-# Further work will happen on that file.
-#
# Copyright 2015, Google Inc.
# All rights reserved.
#
@@ -308,7 +305,7 @@
foreach(FIL ${ARGN})
get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
get_filename_component(FIL_WE ${FIL} NAME_WE)
- file(RELATIVE_PATH REL_FIL ${CMAKE_SOURCE_DIR} ${ABS_FIL})
+ file(RELATIVE_PATH REL_FIL ${CMAKE_CURRENT_SOURCE_DIR} ${ABS_FIL})
get_filename_component(REL_DIR ${REL_FIL} DIRECTORY)
set(RELFIL_WE "${REL_DIR}/${FIL_WE}")
@@ -324,7 +321,7 @@
${_protobuf_include_path}
${REL_FIL}
DEPENDS ${ABS_FIL} ${_gRPC_PROTOBUF_PROTOC} grpc_cpp_plugin
- WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+ WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Running gRPC C++ protocol buffer compiler on ${FIL}"
VERBATIM)