GPM 1.20.1 problems

Greg Schafer gschafer at
Tue Jan 21 14:20:47 PST 2003

On Tue, Jan 21, 2003 at 05:08:06PM -0500, Billy O'Connor wrote:
> gschafer at (Greg Schafer) writes:
> > On Tue, Jan 21, 2003 at 03:52:12PM -0500, Billy O'Connor wrote:
> >> "Jim Gifford" <jim at> writes:
> >> 
> >> > I didn't have this problem at all. I just finshed building exactly as the
> >> > book states.It may be overkill to add LDFLAGS="-lm"
> >> 
> >> No.  It failed for me too.
> >
> > Only happens with -Os
> >
> Bingo, sure does.  Now what, is exporting LDFLAGS="-lm" good enough?

I dunno. You're the programmer around here so you go figure it out :-)

Common sense tells me that if a program includes math.h then it should link
against -lm. But there may be reasons why that is not true.

But I don't understand why it works when not compiled with -Os. I just
discovered it fails when compiling with no optimisation at all (-O0) so
maybe the ceil rounding function gets optimized away by the compiler or

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