GCCE fixes (Bug 2971) : Remove IMPORT_C statements in ext_dat.h as these are not necessary within same module and cause "not constant" error with GCCE
# Microsoft Developer Studio Generated Dependency File, included by linktest.mak..\src\Linktest.cpp : \ "$(EPOCROOT)epoc32\include\zconf.h"\ "$(EPOCROOT)9.6\epoc32\include\zlib.h"\