Fix nasa#1436, table object file name

Use a shell glob instead of assuming a specific file name, this
should pick up the object file no matter how it was named, as
long as it ends in ${CMAKE_C_OUTPUT_EXTENSION}.

It does rely on/assume there is only one such file, so this might
break if one changes the name of a table without a clean rebuild.

A proper fix would still be to use TARGET_OBJECTS generator expression,
but that can't happen until Ubuntu 18.04 (w/ ver 3.10) is EOL.

cmake/arch_build.cmake

@@ -197,9 +197,6 @@ function(add_cfe_tables APP_NAME TBL_SRC_FILES)
       add_library(${TGT}_${TBLWE}-obj STATIC ${TBL_SRC})
       target_link_libraries(${TGT}_${TBLWE}-obj PRIVATE core_api)
 
-      get_filename_component(TBLOBJ ${TBL} NAME)
-      string(APPEND TBLOBJ ${CMAKE_C_OUTPUT_EXTENSION})
-
       # IMPORTANT: This rule assumes that the output filename of elf2cfetbl matches
       # the input file name but with a different extension (.o -> .tbl)
       # The actual output filename is embedded in the source file (.c), however
@@ -209,7 +206,7 @@ function(add_cfe_tables APP_NAME TBL_SRC_FILES)
       add_custom_command(
         OUTPUT "${TABLE_DESTDIR}/${TBLWE}.tbl"
         COMMAND ${CMAKE_AR} x $<TARGET_FILE:${TGT}_${TBLWE}-obj>
-        COMMAND ${MISSION_BINARY_DIR}/tools/elf2cfetbl/elf2cfetbl "${TBLOBJ}"
+        COMMAND ${MISSION_BINARY_DIR}/tools/elf2cfetbl/elf2cfetbl "*${CMAKE_C_OUTPUT_EXTENSION}"
         DEPENDS ${MISSION_BINARY_DIR}/tools/elf2cfetbl/elf2cfetbl ${TGT}_${TBLWE}-obj
         WORKING_DIRECTORY ${TABLE_DESTDIR}
       )