Adding environment variables to tests

Disabling the asynchronous thread for the apex_version test, there
is a race condition somewhere that causes apex to crash 1% of the time
for this short test that prints the apex version. I thought I have
fixed it multiple times but I am tired of playing whack-a-mole
for this short test.

src/unit_tests/C++/CMakeLists.txt

@@ -121,6 +121,8 @@ set_property (TEST test_apex_malloc_cpp APPEND PROPERTY ENVIRONMENT
 set_property (TEST test_apex_malloc_cpp APPEND PROPERTY ENVIRONMENT
     "APEX_TRACK_CPU_MEMORY=1")
 
+set_tests_properties(test_apex_version_cpp PROPERTIES ENVIRONMENT "APEX_PROC_SELF_STATUS=0;APEX_PROC_STAT=0")
+
 # Make sure the compiler can find include files from our Apex library.
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${MPI_COMPILE_FLAGS}")
 include_directories (. ${APEX_SOURCE_DIR}/src/apex ${MPI_CXX_INCLUDE_PATH})

src/unit_tests/C/CMakeLists.txt

@@ -88,6 +88,7 @@ if(OpenACC_C_FOUND AND OpenACCProfiling_FOUND)
 endif(OpenACC_C_FOUND AND OpenACCProfiling_FOUND)
 
 set_tests_properties(test_apex_disable PROPERTIES ENVIRONMENT "APEX_DISABLE=1")
+set_tests_properties(test_apex_version PROPERTIES ENVIRONMENT "APEX_PROC_SELF_STATUS=0;APEX_PROC_STAT=0")
 if(APEX_ERROR_HANDLING)
     set_tests_properties(test_crasher PROPERTIES WILL_FAIL TRUE)
 endif(APEX_ERROR_HANDLING)