Improved dependency checking

modules/matlab/compile.cmake

@@ -5,10 +5,17 @@ endmacro()
 listify(MEX_INCLUDE_DIRS_LIST ${MEX_INCLUDE_DIRS})
 file(GLOB SOURCE_FILES "${CMAKE_CURRENT_BINARY_DIR}/src/*.cpp")
 foreach(SOURCE_FILE ${SOURCE_FILES})
+    # strip out the filename
+    get_filename_component(FILENAME ${SOURCE_FILE} NAME_WE)
     # compile the source file using mex
     execute_process(
         COMMAND ${MATLAB_MEX_SCRIPT} ${MEX_OPTS} ${MEX_INCLUDE_DIRS_LIST} 
                 ${MEX_LIB_DIR} ${MEX_LIBS} ${SOURCE_FILE}
         WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/src
+        ERROR_VARIABLE FAILED
     )
+    # TODO: If a mex file fails to cmpile, should we error out?
+    if (FAILED)
+        message(FATAL_ERROR "Failed to compile ${FILENAME}: ${FAILED}")
+    endif()
 endforeach()