B := $(DPDK_BUILD_DIR)
I := $(DPDK_INSTALL_DIR)
DPDK_VERSION ?= 17.05
-PKG_SUFFIX ?= vpp3
+PKG_SUFFIX ?= vpp5
DPDK_BASE_URL ?= http://fast.dpdk.org/rel
DPDK_TARBALL := dpdk-$(DPDK_VERSION).tar.xz
DPDK_TAR_URL := $(DPDK_BASE_URL)/$(DPDK_TARBALL)
$(error unknown platform)
endif
-JOBS := $(shell grep processor /proc/cpuinfo | wc -l)
+# /proc/cpuinfo does not exist on platforms without a /proc and on some
+# platforms, notably inside containers, it has no content. In those cases
+# we assume there's 1 processor; we use 2*ncpu for the -j option.
+# NB: GNU Make 4.2 will let us use '$(file </proc/cpuinfo)' to both test
+# for file presence and content; for now this will have to do.
+JOBS := $(if $(shell [ -f /proc/cpuinfo ] && head /proc/cpuinfo),\
+ $(shell expr 2 '*' $$(grep -c ^processor /proc/cpuinfo)), 2)
# compiler/linker custom arguments
DPDK_CPU_CFLAGS := -pie -fPIC