[build] Fix bugs in CMake build (kaldi-asr#4044)

Author: alex-ht

CMakeLists.txt

@@ -159,7 +159,7 @@ if(${KALDI_USE_PATCH_NUMBER})
 endif()
 
 get_third_party(openfst)
-set(OPENFST_ROOT_DIR ${CMAKE_CURRENT_BINARY_DIR}/openfst)
+set(OPENFST_ROOT_DIR ${CMAKE_BINARY_DIR}/openfst)
 include(third_party/openfst_lib_target)
 link_libraries(fst)
 

cmake/VersionHelper.cmake

@@ -8,6 +8,7 @@ function(get_version)
     execute_process(COMMAND git rev-list --count "${version_commit}..HEAD"
                     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                     OUTPUT_VARIABLE patch_number)
+    string(STRIP ${patch_number} patch_number)
 
     set(KALDI_VERSION ${version} PARENT_SCOPE)
     set(KALDI_PATCH_NUMBER ${patch_number} PARENT_SCOPE)