Re: [Bug-gnucap] building guncap-0.35 in cygwin

[Dan McMahill]

Dan McMahill wrote:
> Jon Choy wrote:
>
> >  I'm attempting to do a build in the most recent version of cygwin. 
> > During the "make", I get the following errors:
> >
> >
> > Making all in modelgen
> > make[2]: Entering directory `/home/src/gnucap-0.35/modelgen'
> > make[2]: Nothing to be done for `all'.
> > make[2]: Leaving directory `/home/src/gnucap-0.35/modelgen'
> > Making all in src
> > make[2]: Entering directory `/home/src/gnucap-0.35/src'
> > make[2]: *** No rule to make target `d_bjt.cc', needed by 
> > `c_getckt.o'.  Stop.
> > make[2]: Leaving directory `/home/src/gnucap-0.35/src'
> > make[1]: *** [all-recursive] Error 1
> > make[1]: Leaving directory `/home/src/gnucap-0.35'
> > make: *** [all] Error 2
> >
> >
> >  I noticed in the announcement for a November release (which I also 
> > tried) some statements about the link order being very important. 
> > http://archives.seul.org/geda/dev/Nov-2006/msg00030.html
> >
> >  Could this be related? I'm dying to try gnucap out within cygwin and 
> > am looking forward to the Verilog A release which is what intrigues me 
> > abou this tool.
>
>
> no, your problem is something else.
>
>
> Do you have the file  "/home/src/gnucap-0.35/src/d_bjt.model"?
>
> in src/Makefile.in there is something like this:
>
> .SUFFIXES: .model .cc .o .obj
>
> and later:
>
> c_getckt.${OBJEXT}: ${MODELSRCS}
>
> %.cc : %.model %.h ${MODELGEN}
>         ${MODELGEN} -cc $<
>
> %.h : %.model ${MODELGEN}
>         ${MODELGEN} -h $<
>
> and d_bjt.cc is listed in MODELSRCS.  So make should be able to figure 
> out from the suffix rule that if it has a d_bjt.model and needs a 
> d_bjt.cc then just run modelgen.


ok, here's whats wrong.  I put in pattern rules for the modelgen 
generated sources.  Thats the:

%.cc : %.model %.h ${MODELGEN}
        ${MODELGEN} -cc $<

%.h : %.model ${MODELGEN}
        ${MODELGEN} -h $<


part in src/Makefile.am and src/Makefile.in

The problem is with pattern rules, GNU make will look at %.model and 
${MODELGEN} (the dependencies both explicit and patterns) and see if it 
knows how to produce those.  If so, then it knows it can produce the 
target.  The kicker is that ${MODELGEN} ends up being something like 
../modelgen/gnucap-modelgen but on cygwin there is also a .exe 
extension.  So I think all that is needed is to modify the above to be:


%.cc : %.model %.h ${MODELGEN}${EXEEXT}
        ${MODELGEN} -cc $<

%.h : %.model ${MODELGEN}${EXEEXT}
        ${MODELGEN} -h $<


This seems to work for me.

-Dan