Hi All, We want to use specific downloaded openssl while compiling the DPDKv21.11. We don’t want to use the openssl installed in the build machine. We tried adding -Dc_args and -Dc_link_args to meson configure to specify the director of external openssl but build still seems to be linking to installed verson of the open ssl. meson setup build meson configure -Dc_args="-I /thirdparty/gobuild/compcache/cayman_openssl/ob-20569149/linux64/lin64+gcc6/include" -Dc_link_args="-L thirdparty/gobuild/compcache/cayman_openssl/ob-20569149/linux64/lin64+gcc6/lib64/" ninja -C build ldd ./dpdk/build/drivers/librte_common_qat.so linux-vdso.so.1 (0x00007ffceffea000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fe7d445b000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fe7d4455000) libnuma.so.1 => /lib/x86_64-linux-gnu/libnuma.so.1 (0x00007fe7d4448000) librte_bus_pci.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/librte_bus_pci.so.22 (0x00007fe7d4438000) librte_eal.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_eal.so.22 (0x00007fe7d432d000) librte_kvargs.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_kvargs.so.22 (0x00007fe7d4326000) librte_telemetry.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_telemetry.so.22 (0x00007fe7d431b000) librte_pci.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_pci.so.22 (0x00007fe7d4316000) librte_cryptodev.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_cryptodev.so.22 (0x00007fe7d42fa000) librte_mbuf.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_mbuf.so.22 (0x00007fe7d42ec000) librte_mempool.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_mempool.so.22 (0x00007fe7d42dd000) librte_ring.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_ring.so.22 (0x00007fe7d42d8000) librte_rcu.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_rcu.so.22 (0x00007fe7d42d1000) librte_net.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_net.so.22 (0x00007fe7d42c7000) librte_compressdev.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_compressdev.so.22 (0x00007fe7d42bd000) librte_security.so.22 => /root/nsx-edge-datapath-dpdk-21-11/thirdparty/./dpdk/build/drivers/../lib/librte_security.so.22 (0x00007fe7d42b4000) libcrypto.so.1.0.0 => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007fe7d3df4000) <<< This is the installed version of the openssl not the external version libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fe7d3dd1000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fe7d3bdf000) /lib64/ld-linux-x86-64.so.2 (0x00007fe7d45f3000) Please suggest how do we achieve this in meson/ninja? Thanks, Pankaj