modification to test/CMakeLists.txt file to ensure that it is properl…

…y checking for existence of untarred directory

test/CMakeLists.txt

@@ -87,9 +87,9 @@ else() # Download CRTM coefficients
 
  # Define the directory to untar into
  set(UNTAR_DEST "${CMAKE_BINARY_DIR}/test_data/${PROJECT_VERSION}")
- message(STATUS "Checking if ${UNTAR_DEST} already exists...")
+ message(STATUS "Checking if ${UNTAR_DEST}/${CRTM_COEFFS_BRANCH} already exists...")
  # Only untar if the CHECK_PATH does not exist
- if(NOT EXISTS ${UNTAR_DEST})
+ if(NOT EXISTS ${UNTAR_DEST}/${CRTM_COEFFS_BRANCH}/)
  message(STATUS "Untarring the downloaded file (~2 minutes) to ${UNTAR_DEST}")
  execute_process(COMMAND tar -xzf ${DOWNLOAD_DEST} -C ${UNTAR_DEST}
  RESULT_VARIABLE result