Hi, I have tried (successfully this time) to build yhc, and encountered some issues: 1. Is there any particluar reason that "darcs get --partial" is done on cpphs? This results in Language and Text module hierarchies not pulled, which further results in compile error. I have made the following changes: ========================= bash$ darcs whatsnew { hunk ./Makefile 12 - darcs get --partial --repo-name=depends/cpphs $(CPPHS_URL) + darcs get --repo-name=depends/cpphs $(CPPHS_URL) hunk ./build/depends.py 12 - env.Execute(env.Action("darcs get --partial --repo-name=depends/cpphs http://www.cs.york.ac.uk/fp/darcs/cpphs")) + env.Execute(env.Action("darcs get --repo-name=depends/cpphs http://www.cs.york.ac.uk/fp/darcs/cpphs")) } ========================= basically removed "--partial" 2. I had to add a line to depends/ctypes/libffi/include/ffi.h: #define __LONG_LONG_MAX__ 9223372036854775807LL before #ifdef LONG_LONG_MAX # define FFI_LONG_LONG_MAX LONG_LONG_MAX #else . . . This may be a problem with my C compiler, because its own "limits.h" has definition for __LONG__LONG_MAX, but for some reason it is not visible to the compiler. So this is not a suggested fix, but just a question whether anybody had to do this for an old gcc (egcs 2.91.66 in my case)? Without that line, I got an error about unsupported 64 bit types (although the compiler supports long longs perfectly). 3. This may be a question to the scons team, but since it is used for this particukar project, I'm asking here first. How can I specify a custom path to a library, include file, etc.? With autoconf, I am usually able to specify "--with-bla=/foo/bar" provided that the developer of configure.ac made such an option available. How can the same be done with scons? E. g. I want to use alternate libgmp instead of one installed in /usr/lib? 4. Indeed, gmp 3.1 is not good: it is missing gmp_ printf. gmp 3.3 does have it. -- Dimitry Golubovsky Anywhere on the Web