On Sun, Sep 24, 2000 at 09:48:16PM -0600, Gordon Matzigkeit wrote: > >>>>> Brent Fulgham writes: > > BF> The MzScheme software package makes use of the UNIX "syscall" > BF> function. > [...] > BF> But under the Hurd, these defines are not available. I assume > BF> they probably map 1:1 with the Linux variety, but the fact that > BF> they are not present makes me somewhat concerned that there may > BF> be more going on than I am aware of. > > BF> Can someone comment on the availability of these syscall > BF> mappings? > > ``Syscall'' is another name for ``kernel trap.'' The syscalls for > Mach are completely different than the ones for Linux or other > unices. > > The only portability provided by the Hurd is the Posix interfaces > defined by the GNU C Library. You should see if MzScheme has been > ported to Posix, and if not, suggest that they define a port that uses > `read (...)' rather than `syscall (... read ...)'. > > That's a basic Unix portability guideline: don't use syscalls. >
I'm being unfair to MzScheme. They are simply using the Boehm garbage collector, which uses the "syscall" function I mentioned above. I thought someone had spent some time looking at porting Boehm to the Hurd -- was this successful? Or should I put my debugging hat on and try to come up with a patch? Thanks, -Brent
