diff --git a/src/makeBaseApp/top/configure/CONFIG_SITE b/src/makeBaseApp/top/configure/CONFIG_SITE
index 521b6307e..0a13fc62a 100644
--- a/src/makeBaseApp/top/configure/CONFIG_SITE
+++ b/src/makeBaseApp/top/configure/CONFIG_SITE
@@ -2,6 +2,11 @@
 
 # Make any application-specific changes to the EPICS build
 # configuration variables in this file.
+#
+# Host/target specific settings can be specified in files named
+#  CONFIG_SITE.$(EPICS_HOST_ARCH).Common
+#  CONFIG_SITE.Common.$(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
diff --git a/src/makeBaseApp/top/configure/RELEASE b/src/makeBaseApp/top/configure/RELEASE
index 355205587..c27a3794f 100644
--- a/src/makeBaseApp/top/configure/RELEASE
+++ b/src/makeBaseApp/top/configure/RELEASE
@@ -7,6 +7,11 @@
 # "gnumake clean uninstall install" in the top directory
 # each time EPICS_BASE, SNCSEQ, or any other external
 # module defined in the RELEASE file is rebuilt.
+#
+# Host/target specific settings can be specified in files named
+#  RELEASE.$(EPICS_HOST_ARCH).Common
+#  RELEASE.Common.$(T_A)
+#  RELEASE.$(EPICS_HOST_ARCH).$(T_A)
 
 TEMPLATE_TOP=_TEMPLATE_TOP_