commom.mk: Support V make variable (verbose build)

diff --git a/common.mk b/common.mk
index 439490596d38ff0b910c6b34896d400fea577af8..241576fc9e7a887892d5b37fdbd0dd351062ace9 100644 (file)
--- a/common.mk
+++ b/common.mk
@@ -140,8 +140,11 @@ CFLAGS += -fprofile-arcs -ftest-coverage
 LIBS += -lgcov
 endif
 
+V ?= 0
+ifeq ($(V),0)
 # Don’t print command lines which are run
 .SILENT:
+endif
 
 # Always remake the following targets
 .PHONY: install clean dist distclean