[Moving to haskell-cafe] OK, after going through this several times, here's what I've found: 1) The Debian linux build of haskell produces large executables. 2) The generic x86 binary distribution produces smallish executables (383765 bytes; still kind of large; stripped it's 191584 bytes). 3) I removed my entire source distribution, and recompiled from scratch with this build.mk file: SRC_HC_OPTS = -H64m -O2 GhcLibHcOpts = -O2 -fgenerics SplitObjs = YES I did an "autoreconf; configure; make; make install" and then recompiled hnop from scratch. I got large executables (2838528 bytes unstripped, 1540072 stripped). I'm at a loss here. Somehow, the SplitObjs option doesn't seem to be doing the job. Any suggestions would be appreciated. Mike Donald Bruce Stewart wrote:
Hmm. Did you build from scratch? Perhaps the libraries didn't get rebuilt with split objs ?
mvanier:
I've tried doing a manual build with SplitObjs set to YES, but without success; either the compiler was broken or it would still generate large executables. So as a sanity check, I installed the debian unstable build. But that one also gives me a huge executable:
% ls -l total 2720 -rw-r--r-- 1 mvanier mvanier 818 Jun 29 20:48 LICENSE -rw-r--r-- 1 mvanier mvanier 308 Jun 30 04:59 Main.hi -rw-r--r-- 1 mvanier mvanier 80 Jun 29 20:48 Main.hs -rw-r--r-- 1 mvanier mvanier 1928 Jun 30 04:59 Main.o -rw-r--r-- 1 mvanier mvanier 43 Jun 29 20:48 Makefile -rwxr-xr-x 1 mvanier mvanier 2756151 Jun 30 04:59 hnop -rw-r--r-- 1 mvanier mvanier 807 Jun 29 23:56 hnop.tar.gz
Am I the only person in the world with this problem?
Also, for some inexplicable reason, debian puts ghci into /usr/X11R6/bin, though ghc is in the more sensible /usr/bin/ghc.
TIA,
Mike
Donald Bruce Stewart wrote:
mvanier:
Nope, just ghc-6.4.2 that I compiled myself on a Dell x86 laptop (Pentium M). I didn't use any strange configure options. Is there a special configure flag for split objects? If not, how is this determined? Ah ha! You need to add -split-objs to the build.mk used by ghc to build its libraries, as described here: http://cvs.haskell.org/cgi-bin/cvsweb.cgi/~checkout~/fptools/ghc/HACKING?con...
You want: SplitObjs = YES
in mk/build.mk
It's not enabled by default, since it doesn't work on every platform. The ghc that is distributed in the debian package system does have split objs on, though.
Cheers, Don