simplify use of fnesc-cppdir

diff --git a/support/make/savepp.extra b/support/make/savepp.extra
new file mode 100644 (file)
index 0000000..20d443e
--- /dev/null
+++ b/support/make/savepp.extra
@@ -0,0 +1,3 @@
+#-*-Makefile-*- vim:syntax=make
+
+PFLAGS += -fnesc-cppdir=pp