Use appropriate config file for the target library.
Configfile files Target
config-WOLFLIB.h: wolfSSL-Lib /* for general use wolfSSL library */
config-BARE-METAL.h: MDK-BAREMETAL-Lib /* for linking with MDK-BAREMETAL target in MDK-ARM-STM32F2xx project */
config-FS.h: MDK-FS-Lib /* for linking with MDK-FS target in MDK-ARM-STM32F2xx project */
config-RTX-TCP-FS.h: MDK-RTX-TCP-FS-Lib /* for linking with MDK-RTX-TCP-FS target in MDK-ARM-STM32F2xx project */