compilation problem

Hello Support,

           During BSP compilation i got an error like this..

MAKE make PLATFORM=connectem ENDIAN=-mbig-endian PROCESSOR=arm7 TOOLSET=gnu CPU_
FLAG=-mcpu=arm7tdmi DEBUG=off
./…/libs/libc.a(malloc.o): definition of malloc
./…/…/…/…/lib/arm7/32b/gnu/bsp/connectem/libbsp.a(event_handler.o): referenc
e to malloc
./…/…/…/…/lib/arm7/32b/gnu/bsp/connectem/libbsp.a(netos_serl.o)(.text+0x27dc
): In function netos_serlinit': ./devices/common/serial/netos_serl.c:3457: undefined reference to _txe_thread_c
reate’
./…/…/…/…/lib/arm7/32b/gnu/bsp/connectem/libbsp.a(netos_serl.o)(.text+0x3890
): In function isatty': ./devices/common/serial/netos_serl.c:4368: undefined reference to NAserialComPo
rtFds’
make[2]: *** [blram.elf] Error 1
make[1]: *** [bootloader/ramImage/blram.o] Error 2
make: *** [mylocalall] Error 2

what will be the reason for that…I didnt make any changes in the files mentioned above…