[SPDK] Linker errors after adding new library

Hello everyone, I'm trying to add a new library in spdk/lib which will provide some statistical information. The functions from this library can be called from other libraries. One of the functions from my library is called from env_dpdk/env.c. During compilation, I'm getting the following linker errors only in vhost and iscsi_tgt apps. /root/spdk/build/lib/libspdk_env_dpdk.a(env.o): In function `spdk_dma_zmalloc': /root/spdk/lib/env_dpdk/env.c:87: undefined reference to `malloc_stats' collect2: error: ld returned 1 exit status make[2]: *** [iscsi_tgt] Error 1 make[1]: *** [iscsi_tgt] Error 2 make[1]: *** Waiting for unfinished jobs.... /root/spdk/build/lib/libspdk_env_dpdk.a(env.o): In function `spdk_dma_zmalloc': /root/spdk/lib/env_dpdk/env.c:87: undefined reference to `malloc_stats' collect2: error: ld returned 1 exit status make[2]: *** [vhost] Error 1 make[1]: *** [vhost] Error 2 make: *** [app] Error 2 The nvmf_tgt application compiled successfully. I'm not able to figure out what is going wrong since I have made the same changes in Makefiles of nvmf_tgt and vhost/iscsi_tgt. I tried re-ordering the library in the Makefile but it did not solve the issue. Can anyone suggest what might be going wrong? Thanks, Avinash