I recognized that in src/interpreter/Makefile there was still a reference to the posix package: HFLAGS = $(shell $(LOCAL)fixghc $(GHCSYM) -fglasgow-exts \ -package lang -package util -package posix $(READLINE) ) After removing "-package posix" and applying the change you mentioned, the compilation of hmake works now! Many thanks!! - Now I may try to go on with building the HaXml tools. Christian