diff --git a/bigtable/CMakeLists.txt b/bigtable/CMakeLists.txt
index 1b8089f..771e1ec 100644
--- a/bigtable/CMakeLists.txt
+++ b/bigtable/CMakeLists.txt
@@ -69,6 +69,10 @@ set(PROTOBUF_IMPORT_DIRS "${PROJECT_THIRD_PARTY_DIR}/googleapis" "${PROJECT_SOUR
 if(GRPC_ROOT_DIR)
     list(INSERT PROTOBUF_IMPORT_DIRS 0 "${GRPC_ROOT_DIR}/third_party/protobuf/src")
 endif(GRPC_ROOT_DIR)
+find_path(PROTO_INCLUDE_DIR google/protobuf/descriptor.proto)
+if(PROTO_INCLUDE_DIR)
+    list(INSERT PROTOBUF_IMPORT_DIRS 0 "${PROTO_INCLUDE_DIR}")
+endif()
 
 # Get the destination directories based on the GNU recommendations.
 include(GNUInstallDirs)
@@ -110,7 +114,7 @@ enable_testing()
 
 # Capture the compiler version and the git revision into variables, then
 # generate a config file with the values.
-if (IS_DIRECTORY ${PROJECT_SOURCE_DIR}/.git)
+if (IS_DIRECTORY ${PROJECT_SOURCE_DIR}/.git AND 0)
     execute_process(COMMAND git rev-parse --short HEAD
             OUTPUT_VARIABLE GIT_HEAD_LOG ERROR_VARIABLE GIT_HEAD_LOG)
 else ()