cmake switch to turn off test building

Author: bloke

CMakeLists.txt

@@ -301,7 +301,7 @@ target_link_libraries           (tesseract libtesseract)
 
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-if (BUILD_GTEST AND EXISTS ${PROJECT_SOURCE_DIR}/googletest/CMakeLists.txt)
+if (BUILD_TESTS AND EXISTS ${PROJECT_SOURCE_DIR}/googletest/CMakeLists.txt)
     add_subdirectory(googletest)
     add_executable(tesseract_tests tests/tesseracttests.cpp)
     target_link_libraries(tesseract_tests gtest_main)