Add missing '-I' flag.

--- old/ddd/Makefile.am	(revision 7508)
+++ new/ddd/Makefile.am	(working copy)
@@ -655,7 +655,7 @@
 LIBXFT = @XFT_LIBS@ -lfontconfig

 # Freetype2 headers
-XFTINCLUDE = @XFT_INCLUDE@
+XFTINCLUDE = -I@XFT_INCLUDE@

 # X Miscellaneous  Utilities needed for Athena and Motif >= 2.0 (lXmu)
 LIBXMU = @XMU_LIBS@
--- old/ddd/Makefile.in	(revision 7508)
+++ new/ddd/Makefile.in	(working copy)
@@ -1307,7 +1307,7 @@
 LIBXFT = @XFT_LIBS@ -lfontconfig

 # Freetype2 headers
-XFTINCLUDE = @XFT_INCLUDE@
+XFTINCLUDE = -I@XFT_INCLUDE@

 # X Miscellaneous  Utilities needed for Athena and Motif >= 2.0 (lXmu)
 LIBXMU = @XMU_LIBS@