Fix PL/Tcl for vpath builds.

tglsfdc · tglsfdc · commit 9f73a2f6d1c1 · 2016-03-25T17:13:03.000-04:00
Commit cd37bb7 works for in-tree builds, but not so much for VPATH. Per buildfarm.
diff --git a/src/pl/tcl/Makefile b/src/pl/tcl/Makefile
@@ -11,7 +11,7 @@ top_builddir = ../../..
 include $(top_builddir)/src/Makefile.global
 
 
-override CPPFLAGS := $(TCL_INCLUDE_SPEC) $(CPPFLAGS)
+override CPPFLAGS := -I. -I$(srcdir) $(TCL_INCLUDE_SPEC) $(CPPFLAGS)
 
 # On Windows, we don't link directly with the Tcl library; see below
 ifneq ($(PORTNAME), win32)
