Cleaned up CONFIG_SITE file.

Introduced WITH_COVERAGE Make variable
to control build options.

configure/CONFIG_SITE

@@ -8,23 +8,14 @@
 #  CONFIG_SITE.Common.$(T_A)
 #  CONFIG_SITE.$(EPICS_HOST_ARCH).$(T_A)
 
-# Set this when you only want to compile this application
-# for a subset of the cross-compiled target architectures
-# that Base is built for.
-#CROSS_COMPILER_TARGET_ARCHS = vxWorks-68040
-
-# Set this when your IOC and the host use different paths
-# to access the application. This will be needed to boot
-# from a Microsoft FTP server or with some NFS mounts.
-# You must rebuild in the iocBoot directory for this to
-# take effect.
-#IOCS_APPL_TOP = <path to application top as seen by IOC>
-
 # If you don't want to install into $(TOP) then
 # define INSTALL_LOCATION here
 #INSTALL_LOCATION=<fullpathname>
 
-ifeq ($(EPICS_TEST_COVERAGE),1)
+-include $(TOP)/configure/CONFIG_SITE.local
+-include $(TOP)/../CONFIG.local
+
+ifdef WITH_COVERAGE
 USR_CPPFLAGS += --coverage
 USR_LDFLAGS += --coverage
 endif
@@ -32,7 +23,3 @@ endif
 INSTALL_INCLUDE = $(INSTALL_LOCATION)/include/pv
 USR_INCLUDES += -I $(INSTALL_LOCATION)/include
 
-#USR_CPPFLAGS=-fvisibility=hidden
-
--include $(TOP)/configure/CONFIG_SITE.local
--include $(TOP)/../CONFIG.local