makefile: allow COVERAGE to be configurable

If COVERAGE=1 during build, i3 will be compiled for coverage testing.

diff --git a/common.mk b/common.mk
index b9e15a286fc27d335e4ae8c12a36ec8188dbd972..dcc90c964f968c975c7a7bbf2e62352d895de524 100644 (file)
--- a/common.mk
+++ b/common.mk
@@ -1,6 +1,5 @@
 UNAME=$(shell uname)
 DEBUG=1
-COVERAGE=0
 INSTALL=install
 LN=ln
 ifndef PREFIX