ubuntu 20.04 - change to release build

gcontini

2021-05-20 51fbd6a53d53fc1106726890017c51d5abe4759a

 test/library/CMakeLists.txt

@@ -14,7 +14,7 @@
ELSE(WIN32)
    add_executable(
       test_os_linux
       Os_Linux_test.cpp
       os_linux_test.cpp
   )

   target_link_libraries(