RE: Tricky suffix rule problem for Corba

[CARTER-HITCHIN, David, FM]

Hi Paul,

Again, thanks for your help.

>  The .cc and .h files get created in the source dirs
>   cdf> w,x,y or z, and so when we rerun make it tries to find
>   cdf> ../idl/a.cc or ../idl/a.h and of course never finds them, so it
>   cdf> rebuilds.
> 
>   >> %.h ../idl/%.cc : ../idl/%.idl
>   >> $(IDL_COMMAND) $(IDL_OPTIONS) $<
> 
>   cdf> I tried a few things like this.  The variation you 
> give means the
>   cdf> target is still '../idl/gds_server.h' which is not where the
>   cdf> header needs to live and the pre-requisite is
>   cdf> '../idl/../idl/gds_svc_man.idl' which looks broken but 
> we're just
>   cdf> making make skip between dirs and is the same as what we've
>   cdf> started with.
> 
> You'll need to give more precise details.

> What directory is make in when it executes?  

In one of the source dirs, e.g. w,x,y or z

> Where are the idl files 
> (that was in your email, but please restate it in a complete context)?

They are one directory up and in a directory called 'idl', i.e. relative
to the source dir ../idl/a.idl

> Where do you want the output files generated?  

Where they currently get generated - in the source dirs (w,x,y or z in my
example).  I could, in theory, get them directed to ../idl/ and INCLUDE 
this dir in our build, but I'm hoping it will be easier to fix the make
rules.

> What are the prerequisites used to find the .idl files presumably foo.o
depends on
> foo.cc and foo.h for example: where are the .o files?...

We have:

=====================================
IDL_HEADERS := ../idl/a.idl ../idl/b.idl

IDL: $(IDL_HEADERS)

$(LIBRARY): $(IDL_HEADERS) $(LIB_OBJS)
        blah
        blah

%.h %.cc: %.idl
        $(MICOIDL) $(MICOIDL_OPTS) $<

%.h %.cc: $(TOPDIR)/idl/%.idl
        $(MICOIDL) $(MICOIDL_OPTS) $< 
======================================

Sheesh! I just noticed two rules for idl :-( Things are now getting really
bad.


> exactly does
> the target/prerequisite line look like (what pathnames are 
> used, etc.)?

Hopefully the lines about should show you that?

> If you could provide a complete, but small, makefile that showed the
> problem, substituting "echo" or "cp" for the IDL_COMMAND, 
> that would be very helpful.

Is the above enough?  If not I can try to knock together a little tar file
containing
the basic dir structure and a dummy make.

Your help much appreciated,
David.


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