Makefile: make_parallel_flags via env variable

[vpp.git] / build-root / Makefile

diff --git a/build-root/Makefile b/build-root/Makefile
index 6298ea1..d491e71 100644 (file)
--- a/build-root/Makefile
+++ b/build-root/Makefile
@@ -644,8 +644,8 @@ configure_check_timestamp =                                         \
 # 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.
 MAKE_PARALLEL_JOBS = -j $(if $(shell [ -f /proc/cpuinfo ] && head /proc/cpuinfo), \
-       $(shell expr 2 '*' $$(grep -c ^processor /proc/cpuinfo)), 2)
-MAKE_PARALLEL_FLAGS = $(if $($(PACKAGE)_make_parallel_fails),,$(MAKE_PARALLEL_JOBS))
+       $(shell grep -c ^processor /proc/cpuinfo), 2)
+MAKE_PARALLEL_FLAGS ?= $(if $($(PACKAGE)_make_parallel_fails),,$(MAKE_PARALLEL_JOBS))
 
 # Make command shorthand for packages & tools.
 PACKAGE_MAKE =                                 \