* source/compiler/hbpcode.c
* Corrected 1 compiler warning.
* source/pp/ppcomp.c
* Cleaned-up and corrected bug when rules files had an #include directive.
+ Added CloseInclude() and moved relevant logic into it.
* source/pp/ppcore.c
- Removed unused s_iIncludes, and hb_pp_nEmptyStrings
* utils/hbpp/hbpp.c
+ Added local hb_pp_nEmptyStrings to hb_pp_Parse()
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