Here is the file output from "configure" if that matters: mcs source: $(top_srcdir)/mcs olive source: GC: included TLS: __thread SIGALTSTACK: yes Engine: Building and using the JIT 2.0 Beta: yes 2.1 Alpha: yes JNI support: IKVM Native libgdiplus: assumed to be installed zlib: system zlib oprofile: no BigArrays: no DTrace: no -Chuck