Hello Bruce, I built v18.11 with meson and had a little look at the libdpdk.pc file. It looks like pkg-config works fine with --libs but is recursively opening libdpdk.pc when asking for the cflags:
$ PKG_CONFIG_PATH=build/meson-private:$PKG_CONFIG_PATH pkg-config --libs libdpdk -L/usr/local/lib64 -lrte_telemetry -lrte_bpf -lrte_flow_classify -lrte_pipeline -lrte_table -lrte_port -lrte_vhost -lrte_security -lrte_sched -lrte_reorder -lrte_rawdev -lrte_pdump -lrte_power -lrte_meter -lrte_member -lrte_lpm -lrte_latencystats -lrte_kni -lrte_jobstats -lrte_ip_frag -lrte_gso -lrte_gro -lrte_eventdev -lrte_efd -lrte_distributor -lrte_cryptodev -lrte_compressdev -lrte_cfgfile -lrte_bitratestats -lrte_bbdev -lrte_acl -lrte_timer -lrte_hash -lrte_metrics -lrte_pci -lrte_ethdev -lrte_net -lrte_mbuf -lrte_mempool -lrte_ring -lrte_eal -lrte_kvargs -lrte_cmdline $ PKG_CONFIG_PATH=build/meson-private:$PKG_CONFIG_PATH pkg-config --cflags libdpdk Failed to open 'build/meson-private/libdpdk.pc': Too many open files Package 'libdpdk', required by 'DPDK', not found $ PKG_CONFIG_PATH=build/meson-private:$PKG_CONFIG_PATH strace pkg-config --cflags libdpdk 2>&1|grep -c 'open(.*libdpdk.pc' 1022 I must be doing something wrong... I use meson 0.47.2 and dpdk is only built locally, not installed on the system. -- David Marchand
