This is an example, but not limitied to it. There are tones of multiple definations for variables and funcitons. I got a red "x" on my project after do a clean build.
C:/Freescale/CW-10_2-EV/MCU/ARM_Tools/Command_Line_Tools/mwldarm|Linker|Warning
>Symbol TFTPSRV_access multiply defined in rtcs_twrk60n512_d.a(tftpacc.o
>) and shell_twrk60n512_d.a(sh_tftpd.o )
>Ignoring the definition in rtcs_twrk60n512_d.a(tftpacc.o )
C:/Freescale/CW-10_2-EV/MCU/ARM_Tools/Command_Line_Tools/mwldarm|Linker|Warning
>Symbol exit multiply defined in libc_Thumb_LE_v7M.a(abort_exit.o ) and
>bsp_twrk60n512_d.a(cw.o )
>Ignoring the definition in libc_Thumb_LE_v7M.a(abort_exit.o )
>bsp_twrk60n512_d.a(cw.o )
>Ignoring the definition in libc_Thumb_LE_v7M.a(alloc.o )
>bsp_twrk60n512_d.a(cw.o )
>Ignoring the definition in libc_Thumb_LE_v7M.a(alloc.o )
>bsp_twrk60n512_d.a(cw.o )
>Ignoring the definition in libc_Thumb_LE_v7M.a(alloc.o )
>shell_twrk60n512_d.a(sh_rtcs.o )
>Ignoring the definition in libc_Thumb_LE_v7M.a(ctype_aeabi.o )
>psp_twrk60n512_d.a(io_util.o )
