Re: Finding a header

[Daryl Lee]

On Fri, 2005-12-16 at 01:31 -0500, Braden McDaniel wrote:
> On Thu, 2005-12-15 at 22:45 -0700, Daryl Lee wrote:
> > On Thu, 2005-12-15 at 15:25 -0800, Bruce Korb wrote:
> > > Daryl Lee wrote:
> > > > I am autoconfiscating a project involving other developers.  I need a
> > > > portable way of finding a header (it's an OpenGL header, glut.h, but
> > > > that's just a specific example).  On my machine, it's
> > > > in /usr/include/GL, but on other machines it may be elsewhere,
> > > > like /usr/include.  The  only thing I know to do is just list them in
> > > > AM_CPPFLAGS, and find them by trial and error.  That seems a tad kludgy
> > > > to me.  I expect I'll have a similar issue with libraries once I get
> > > > over this hurdle.
> > > 
> > > Hi Daryl,
> > > 
> > > There are two conventions generally available:
> > > 
> > >    ${package}-config cflags ; ${package}-config link|ldflags
> > > 
> > > sometimes, those arguments have a hyphen or two in front of them.
> > > See if OpenGL has one of these.   More recently, "pkg-config"
> > > has started becoming popular, but for now it must be a backup
> > > solution:
> > > http://www.freedesktop.org/software/pkgconfig/
> > 
> > And, of course, if no ${package}.pc file exists, I'm out of luck, yes?
> 
> If a package has been installed in a place that the compiler/linker
> doesn't know about and without any mechanism for the user to convey its
> location to said tools, someone is out of luck. That shouldn't be you.
> 
> In other words, users who put things in arbitrary places should expect
> to have to set CPPFLAGS and LDFLAGS when running configure.
> 

Thanks to all who contributed.  This one thread and its side topic on
adding m4 files has been most enlightening.

-- 
Daryl Lee
Open the Present--It's a Gift.