ESP 8266 with sdk 1.5 By compiling using sdk v1.5 i got following error.Any idea how to resolve it?

mingw32-make.exe -f C:/Users/abc/worksorg/mesh/Makefile all
AR build/app_app.a
LD build/app.out
c:/Espressif/ESP8266_SDK/lib\libmain.a(app_main.o): In function `user_uart_wait_tx_fifo_empty':
(.irom0.text+0x5c4): undefined reference to `user_init'
c:/Espressif/ESP8266_SDK/lib\libmain.a(app_main.o): In function `user_rf_pre_init':
(.irom0.text+0x85a): undefined reference to `user_init'
c:/Espressif/ESP8266_SDK/lib\libwpa.a(wpa_auth.o): In function `wpa_receive':
(.irom0.text+0x9a0): undefined reference to `aes_wrap'
c:/Espressif/ESP8266_SDK/lib\libwpa.a(wpa_auth.o): In function `__wpa_send_eapol':
(.irom0.text+0xd73): undefined reference to `aes_wrap'
collect2.exe: error: ld returned 1 exit status
C:/Users/abc/worksorg/mesh/Makefile:187: recipe for target 'build/app.out' failed
mingw32-make.exe: *** [build/app.out] Error 1
Add the crypto library to your build, Makefile or whereever your IDE expects it.

--> http://bbs.espressif.com/viewtopic.php?f=46&amp;t=1442