Attempting to build with gcc 4.0 on OS X fails with the following errors. Has anyone else successfully built on OS X? Thanks, -Brent make[5]: Nothing to be done for `all'. true "AR_FLAGS=" "CC_FOR_BUILD=" "CFLAGS=-I/opt/local/include" "CXXFLAGS=" "CFLAGS_FOR_BUILD=" "CFLAGS_FOR_TARGET=" "INSTALL=/usr/ bin/install -c" "INSTALL_DATA=/usr/bin/install -c -m 644" "INSTALL_PROGRAM=/usr/bin/install -c" "INSTALL_SCRIPT=/usr/bin/ install -c" "JC1FLAGS=" "LDFLAGS=" "LIBCFLAGS=" "LIBCFLAGS_FOR_TARGET=" "MAKE=make" "MAKEINFO=/bin/sh /Users/brent/ Projects/Yhc/yhc-devel/src/runtime/libffi/missing --run makeinfo " "PICFLAG=" "PICFLAG_FOR_TARGET=" "RUNTESTFLAGS=" "SHELL=/bin/sh" "exec_prefix=/usr/local" "infodir=/usr/local/info" "libdir=/usr/local/ lib" "prefix=/usr/local" "AR=ar" "AS=as" "CC=gcc" "CXX=g++" "LD=ld" "NM=" "RANLIB=ranlib" "DESTDIR=" DO=all multi-do # make make -C BCKernel gcc -g -o ../../../inst/bin/yhi obj/hashtable.o obj/module.o obj/ iofuncs.o obj/main.o obj/primitive.o obj/pretty.o obj/heap.o obj/ mutator.o obj/integer.o obj/mark.o obj/jonkers.o obj/sanity.o obj/ external.o obj/info.o obj/make.o obj/foreign.o obj/process.o obj/ thread.o obj/ffi.o obj/stable.o obj/Prelude.o obj/IO.o obj/FFI.o obj/ System.o obj/PackedString.o obj/Concurrent.o obj/Array.o -lm - lpthread -ldl -lgmp ../libffi/.libs/libffi.a /usr/bin/ld: multiple definitions of symbol _hsffi_call obj/ffi.o definition of _hsffi_call in section (__TEXT,__text) obj/FFI.o definition of _hsffi_call in section (__TEXT,__text) /usr/bin/ld: multiple definitions of symbol _hsffi_finalizeAllWaiting obj/ffi.o definition of _hsffi_finalizeAllWaiting in section (__TEXT,__text) obj/FFI.o definition of _hsffi_finalizeAllWaiting in section (__TEXT,__text) /usr/bin/ld: multiple definitions of symbol _hsffi_init obj/ffi.o definition of _hsffi_init in section (__TEXT,__text) obj/FFI.o definition of _hsffi_init in section (__TEXT,__text) /usr/bin/ld: multiple definitions of symbol _hsffi_loadExternal obj/ffi.o definition of _hsffi_loadExternal in section (__TEXT,__text) obj/FFI.o definition of _hsffi_loadExternal in section (__TEXT,__text) /usr/bin/ld: multiple definitions of symbol _hsffi_waitForFFI obj/ffi.o definition of _hsffi_waitForFFI in section (__TEXT,__text) obj/FFI.o definition of _hsffi_waitForFFI in section (__TEXT,__text) /usr/bin/ld: can't locate file for: -lgmp collect2: ld returned 1 exit status make[2]: *** [../../../inst/bin/yhi] Error 1 make[1]: *** [kernel] Error 2 make: *** [runtime] Error 2 Chaz:~/Projects/Yhc/yhc-devel brent$