intra-tree dependencies

direct/Package.pp

@@ -49,10 +49,12 @@
 // Define the inter-tree dependencies.
 #define NEEDS_TREES $[NEEDS_TREES] panda
 
-
 // Also get the PANDA Package file and everything that includes.
 #if $[not $[isfile $[PANDA_SOURCE]/Package.pp]]
   #error PANDA source directory not found!  Are you attached properly?
 #endif
 
 #include $[PANDA_SOURCE]/Package.pp
+
+// Now define the intra-tree dependencies.
+#define DEPENDABLE_HEADER_DIRS $[DEPENDABLE_HEADER_DIRS] $[PANDA_INSTALL]/include

panda/Package.pp

@@ -56,3 +56,6 @@
 #endif
 
 #include $[DTOOL_SOURCE]/Package.pp
+
+// Now define the intra-tree dependencies.
+#define DEPENDABLE_HEADER_DIRS $[DEPENDABLE_HEADER_DIRS] $[DTOOL_INSTALL]/include

pandaapp/Package.pp

@@ -57,3 +57,6 @@
 #endif
 
 #include $[PANDATOOL_SOURCE]/Package.pp
+
+// Now define the intra-tree dependencies.
+#define DEPENDABLE_HEADER_DIRS $[DEPENDABLE_HEADER_DIRS] $[PANDATOOL_INSTALL]/include

pandatool/Package.pp

@@ -58,3 +58,6 @@
 #endif
 
 #include $[PANDA_SOURCE]/Package.pp
+
+// Now define the intra-tree dependencies.
+#define DEPENDABLE_HEADER_DIRS $[DEPENDABLE_HEADER_DIRS] $[PANDA_INSTALL]/include