DG/UX [was: Re: problem building 0.15.7]

[Dave Lovelace]

Aha.  It doesn't exist under DG/UX.  Under sh (& sh-derived shells, for the
most part), using ":" as a command essentially treats the command line as
a comment - except that it is different from "#" in that what follows is
evaluated rather than ignored.  (The man page says:

       :      No effect; the command does nothing.  A zero exit code is
              returned.

but in fact side effects occur.  If one did ": rm -rf /*" nothing gets deleted,
but with ": `rm -rf /*`" everything gets deleted.)

So in this case, the line
 	$(RANLIB) libbf_gsl.a
doesn't do anything, which is probably correct.

Doing make clean & re-making accomplished nothing except wasting time & CPU
cycles.  I should have realized this: the error was a syntax error in the
makefile (under DG/UX's native make), which prevented any execution of the
makefile, so nothing got done.

-- 
- Dave Lovelace
  dave at firstcomp.biz
  davel at cyberspace.org

David Relson wrote:
> 
> On Thu, 11 Dec 2003 14:48:46 -0500 (EST)
> Dave Lovelace <dave at firstcomp.biz> wrote:
> 
> > David Relson wrote:
> > > 
> > > A shot in the dark ... 
> > > 
> > > Have you done a "make clean" since changing to GNU make?  Perhaps
> > > DGUX make helped create a borked object file (or library).
> > > 
> > > Since the gsl library is new to bogofilter since you last built on
> > > DGUX, perhaps the library related commands are wrong.  I'm thinking
> > > of the flags passed to ranlib.  Can you check them?
> > > 
> > What is ranlib, what are the flags passed to it?  Where do I find out
> > about this?
> > 
> > I will try doing a make clean.
> > 
> > > Good luck!
> > > 
> > > David
> > > 
> > Thanks.  <sigh>
> 
> Dave,
> 
> When an archive (library), such as libbf_gsl.a, is built giving it an
> index helps the linker find the needed object modules.  On my linux box,
> "apropos ranlib" says "ranlib (1)  - generate index to archive".  I
> mentioned it 'cause it _might_ be part of the problem.
> 
> Matthias,
> 
> Below are some bits from the src/Makefile on DGUX and linux.  Is the
> RANLIB definition acceptable?
> 
> David
> 
> ***********
> 
> DGUX:
> 
>     RANLIB = :
> 
> linux:
> 
>     RANLIB = ranlib
> 
> BOTH:
> 
>     libbf_gsl.a: $(libbf_gsl_a_OBJECTS) $(libbf_gsl_a_DEPENDENCIES) 
> 	-rm -f libbf_gsl.a
> 	$(libbf_gsl_a_AR) libbf_gsl.a $(libbf_gsl_a_OBJECTS)
> $(libbf_gsl_a_LIBADD)
> 	$(RANLIB) libbf_gsl.a
> 
> 
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