diff -up /dev/null gc-7.0/include/extra/gc.h
--- /dev/null	2007-08-28 14:44:51.958644302 -0500
+++ gc-7.0/include/extra/gc.h	2007-08-29 10:02:34.000000000 -0500
@@ -0,0 +1,2 @@
+/* This file is installed for backward compatibility. */
+#include <gc/gc.h>
diff -up /dev/null gc-7.0/include/extra/gc_cpp.h
--- /dev/null	2007-08-28 14:44:51.958644302 -0500
+++ gc-7.0/include/extra/gc_cpp.h	2007-08-29 10:02:34.000000000 -0500
@@ -0,0 +1,2 @@
+/* This file is installed for backward compatibility. */
+#include <gc/gc_cpp.h>
diff -up gc-7.0/include/include.am.compat_header gc-7.0/include/include.am
--- gc-7.0/include/include.am.compat_header	2005-10-10 17:33:34.000000000 -0500
+++ gc-7.0/include/include.am	2007-08-29 10:03:21.000000000 -0500
@@ -52,3 +52,9 @@ dist_noinst_HEADERS += \
 	include/cord.h \
 	include/ec.h \
 	include/javaxfc.h 
+
+# unprefixed header
+include_HEADERS += \
+	include/extra/gc.h \
+	include/extra/gc_cpp.h
+