cmake fortran linker_language

kv/tests/CMakeLists.txt

@@ -13,6 +13,7 @@ macro(papyruskv_test_fortran arg)
     target_link_libraries(kv.${arg} papyruskv pthread stdc++)
     add_test(kv.${arg} ${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} 4 ./kv.${arg})
     set_tests_properties(kv.${arg} PROPERTIES FAIL_REGULAR_EXPRESSION "FAILED")
+    set_tests_properties(kv.${arg} PROPERTIES LINKER_LANGUAGE Fortran)
 endmacro(papyruskv_test_fortran)
 
 add_subdirectory(01_open_close)