+<!-- Base files used by Classic (not CarbonLib or OS X builds) -->
+<!-- set var="BASE_MAC_CLASSIC_SRC">
+</set -->
+
+<!-- Base files used only by CarbonLib builds (not Classic or OS X) -->
+<set var="BASE_MAC_CARBONLIB_SRC" hints="files">
+ src/mac/carbon/morefile/DirectoryCopy.c
+ src/mac/carbon/morefile/FSpCompat.c
+ src/mac/carbon/morefile/FileCopy.c
+ src/mac/carbon/morefile/FullPath.c
+ src/mac/carbon/morefile/IterateDirectory.c
+ src/mac/carbon/morefile/MoreDesktopMgr.c
+ src/mac/carbon/morefile/MoreFiles.c
+ src/mac/carbon/morefile/MoreFilesExtras.c
+ src/mac/carbon/morefile/Search.c
+</set>
+
+<!-- Base files used only by OS X builds (not CarbonLib or Classic) -->
+<set var="BASE_MAC_OSX_SRC" hints="files">
+ src/unix/baseunix.cpp
+</set>
+
+<!-- Base and GUI files used by both OS X and CarbonLib -->