[devel] Added "pngpriv.h" to include list for makefile.wce

scripts/makefile.wce

@@ -30,7 +30,7 @@ PACKAGE = $(NAME)-$(VER)
 
 BIN = libpng14-0.dll libpng-14.dll
 LIB = libpng14.a libpng14.dll.a libpng.a libpng.dll.a scripts/png32ce.def
-INCLUDE = png.h pngconf.h
+INCLUDE = png.h pngconf.h pngpriv.h
 PC = libpng14.pc libpng.pc
 
 MANIFESTVERBIN = "Libpng-$(VER): Binary files"