On Mon, Aug 1, 2011 at 1:58 AM, mikel evins <mevins@me.com> wrote:

... snip ...

D___CONFIGURE_COMMAND="\"./configure --prefix=/usr/local/gambit/macosx --enable-single-host --host=i386\"" -D___OBJ_EXTENSION="\".o\"" -D___EXE_EXTENSION="\"\"" -D___BAT_EXTENSION="\"\"" -D___PRIMAL _io.c -D___LIBRARY
clang: warning: argument unused during compilation: '-fschedule-insns2'
clang: warning: argument unused during compilation: '-fno-trapping-math'
clang: warning: argument unused during compilation: '-fno-move-loop-invariants'
clang: warning: argument unused during compilation: '-mieee'
clang: warning: argument unused during compilation: '-mieee-with-inexact'
clang: warning: argument unused during compilation: '-mieee-fp'


…and sits there for a few hours.


It does take a few hours for me when '--enable-single-host' is enabled - and it does use lots of virtual mem.  I have 4Gb RAM and a SSD drive for the swap space, and it still took several hours - that's why I didn't bother adding the '--enable-single-host' option for the iOS builds.  If you removed that option, you'll probably find it takes only a couple of mins to build with clang.
And as you noticed, clang doesn't appear to support several gcc flags.
 
  Adam