double check

[Ben]

Could one of you autoconf masters please take a look at the current
lpr source tree that I am working on. To make some of the advanced
printing capabilities more accessible to the masses we bundled a whole
bunch printing related software that we have been working on into one
giant tarball. This turned out to be quite a challenge for me with
regards to autoconf and automake and I had to do many things that I
had never tried before to get it working. I would just like someone to
look over the things that I have done to make sure that I did things
the "right" way and that I didn't overlook any major gotcha's.

You can check out the whole CVS repository by doing:

cvs -z3 -d:pserver:address@hidden:/cvsroot/lpr login 
cvs -z3 -d:pserver:address@hidden:/cvsroot/lpr co \
    -r bens_dev_branch lpr 

If you want to just look at the configure.in scripts:

http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/configure.in?rev=1.10.2.5&cvsroot=lpr

The thing that I am not sure about in this one is the way I deal with
tdb not being installed starting at line 24. The effect that I want to
achieve is that tdb is compiled if it is not already installed on the
system.

http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/libppd/Attic/configure.in?rev=1.14.2.1&content-type=text/plain&cvsroot=lpr
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/gpr/Attic/configure.in?rev=1.2&content-type=text/plain&cvsroot=lpr

One thing that I need to do with gpr's configure script is make it
add logic to make it depend on libppd being installed. This is a
little different than the situation with tdb and lpr. Since lpr is the
main project and I am bundling tdb with it and so I can guarentee that
tdb will be in the subdirectory. However, libppd and gpr are both
guest projects and they are both designed to be able to be built
independantly. Therefore when I am building gpr I cannot assume that
libppd will always be in "../libppd". So how do I make this test:

if [ libppd exists on the system ] then
   use the system version
else if [ libppd is in ../libppd ] then
   use the version bundled with lpr
else
   error out

The other problem is how do I guarentee that headers and libraries are
in sync. Say for example a GNU/Linux distro vendor breaks libppd up
into two packages libppd (the shared libraries) and libppd-dev (the
header files) and someone has installed libppd but not libppd-dev. So
then I test for libppd and see that it is there. Then I check for
libppd.h and it isn't there and so I use the one that is bundled with
lpr. However, these version don't match and there are some
incompatabilities.

http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/snmpkit/Attic/configure.in?rev=1.3.2.1&content-type=text/plain&cvsroot=lpr
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/printerconf/Attic/configure.in?rev=1.1.2.1&content-type=text/plain&cvsroot=lpr

I tried to solve some of the problems listed above in printerconf's
configure.in around line 23. Would someone please take a look at this
piece of code and make comments on it. 

One thing that I really don't like is line 32 where I embed a `pwd`
when I set a variable. There has got to be a better way to do this but
I couldn't figure it out. I fear that the "pwd" trick will not work if
someone tries to build the software outside of the source
directories.

http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/printfilters/Attic/configure.in?rev=1.1.2.1&content-type=text/plain&cvsroot=lpr
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/printtool/Attic/configure.in?rev=1.1.2.1&content-type=text/plain&cvsroot=lpr
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/tdb/Attic/configure.in?rev=1.2.2.1&content-type=text/plain&cvsroot=lpr
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/npadmin/Attic/configure.in?rev=1.16&content-type=text/plain&cvsroot=lpr

The associated Makefile.am files are:

lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/Makefile.am?rev=1.17.2.3&content-type=text/plain&cvsroot=lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/doc/Attic/Makefile.am?rev=1.1.2.1&content-type=text/plain&cvsroot=lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/src/Attic/Makefile.am?rev=1.1.2.2&content-type=text/plain&cvsroot=lpr
gpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/gpr/Attic/Makefile.am?rev=1.2&content-type=text/plain&cvsroot=lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/gpr/src/Attic/Makefile.am?rev=1.1.1.1&content-type=text/plain&cvsroot=lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/gpr/macros/Attic/Makefile.am?rev=1.1.1.1&content-type=text/plain&cvsroot=lpr
libppd
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/libppd/Attic/Makefile.am?rev=1.21&content-type=text/plain&cvsroot=lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/libppd/src/Attic/Makefile.am?rev=1.6.2.1&content-type=text/plain&cvsroot=lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/libppd/doc/Attic/Makefile.am?rev=1.1&content-type=text/plain&cvsroot=lpr
npadmin
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/npadmin/Attic/Makefile.am?rev=1.10&content-type=text/plain&cvsroot=lpr
printerconf
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/printerconf/Attic/Makefile.am?rev=1.1&content-type=text/plain&cvsroot=lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/printerconf/common/Attic/Makefile.am?rev=1.1.1.1&content-type=text/plain&cvsroot=lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/printerconf/src/Attic/Makefile.am?rev=1.1.2.1&content-type=text/plain&cvsroot=lpr
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/printerconf/src/parport/Attic/Makefile.am?rev=1.1.2.1&content-type=text/plain&cvsroot=lpr
printfilters
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/printfilters/Attic/Makefile.am?rev=1.1.2.1&content-type=text/plain&cvsroot=lpr
printtool
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/printtool/Attic/Makefile.am?rev=1.1.2.1&content-type=text/plain&cvsroot=lpr
snmpkit
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/snmpkit/Attic/Makefile.am?rev=1.12.2.1&content-type=text/plain&cvsroot=lpr
tdb
    
http://cvs.sourceforge.net/cgi-bin/cvsweb.cgi/~checkout~/lpr/tdb/Attic/Makefile.am?rev=1.2.2.1&content-type=text/plain&cvsroot=lpr

-ben