Smart Card Reader Code compilation error.....

I am working on smart card reader application. Some problems came in front when I tried to compile my application code.

While compilation, I added there following files,

1. main.c
2. tdalib.h <related to TDA8007B smart card reader IC

Main.c relates to my application code
& tdalib.h relates to function prototypes declaration

after doing this compilation I have generated .lib file.

After compiling it showed me following message.
But I also got one error & some warnings.

".\80072512+.LIB"
TO "80072512+.LIB"
LIBX51 LIBRARY MANAGER V4.24
COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2002
*** ERROR 224: ATTEMPT TO ADD DUPLICATE MODULE FILE: .\80072512+.LIB MODULE: ?C_STARTUP
"80072512+.LIB" - 0 Error(s), 8 Warning(s).

How can I deal with this problem.

Thanks in anticipation......

Regards
Vinit