lablgtk can't find cairo (was: Re: Problem with cairo)

[Angela Zhu]

On Fri, Feb 22, 2008 at 8:51 AM, Ryan Schmidt <ryandesign at macports.org>
wrote:

> On Feb 22, 2008, at 08:16, Angela Zhu wrote:
>
> > Sorry I didn't make it clear.
> > I want to use gSourceVIew library provided by lablgtk-2.10.0.
> > I first tried to use "port install lablgtk2", while it seems to
> > succeed in installation,
> > I cannot use gSourceVIew library because no "lablgtksourceview.cma"
> > and "gSourceView.cmi" can be find on my machine after installation.
> > But these two files are needed to compile OCaml program using
> > gSourceVIew library.
> >
> > That's why I want to try install by hand after installing it using
> > MacPorts "successfully".
>
> Ok. Another option might be to file an enhancement request ticket in
> our issue tracker and assign it to the maintainer of the lablgtk2
> port. Maybe this feature would be useful to have in the port.
>
>
> > On Fri, Feb 22, 2008 at 2:43 AM, Ryan Schmidt wrote:
> >
> >> On Feb 21, 2008, at 16:30, Angela Zhu wrote:
> >>
> >> > So I try to download cairo and comple it, but after "cd
> >> cairo-1.4.14",
> >> > when I was doing "./configure" (for cairo), I got following
> >> > attached msg (2).
> >> >
> >> > And then a funny thing is that I actually should have cairo
> >> > installed on my machine
> >> > using "MacPorts", according to attached commands and msg (3).
> >> >
> >> > Anyone can help me to see what are is the problem here?
> >> > Many thanks in advance!
> >> >
> >> > ------------------------------
> >> > ------------
> >> > (1) ./configure for lablgtk
> >> > ------------------------------------------
> >> > checking pkg-config is at least version 0.9.0... yes
> >> > checking for BASE_DEPENDENCIES... configure: error: Package
> >> > requirements (glib-2.0 >= 2.13.5    atk >= 1.9.0    pango >=
> >> > 1.17.3    cairo >= 1.2.0) were not met:
> >> >
> >> > No package 'cairo' found
> >> >
> >> > Consider adjusting the PKG_CONFIG_PATH environment variable if you
> >> > installed software in a non-standard prefix.
> >> >
> >> > Alternatively, you may set the environment variables
> >> > BASE_DEPENDENCIES_CFLAGS
> >> > and BASE_DEPENDENCIES_LIBS to avoid the need to call pkg-config.
> >> > See the pkg-config man page for more details.
> >> > ------------------------------------------
> >>
> >> If you're installing by hand: What's your PKG_CONFIG_PATH? Does it
> >> include the place where cairo is installed?
> >
> > I did  "echo $PKG_CONFIG_PATH" but nothing found, how can I change
> > this parameter?
> >
> >
> >> > ------------------------------------------
> >> > (2)  ./configure for cairo
> >> > ------------------------------------------
> >> > checking whether cairo's Microsoft Windows font backend could be
> >> > enabled... no (requires a Win32 platform)
> >> > checking for cairo's PNG backend...
> >> > configure: WARNING: Could not find libpng in the pkg-config search
> >> > path
> >> > checking whether cairo's PNG backend could be enabled... no
> >> > configure: error: requested PNG backend could not be enabled
> >> > ------------------------------------------
> >>
> >> Here too, the PKG_CONFIG_PATH would enable cairo to know where libpng
> >> is.
> >
> > Again, I am confused, how could I set those parameters?
>
> Simply set the environment variable in the terminal by typing:
>
> export PKG_CONFIG_PATH=/opt/local/lib/pkgconfig
>
> You may also need to set:
>
> export CPPFLAGS=-I/opt/local/include
>
> export LDFLAGS=-L/opt/local/lib
>
>
> Problem solved!

Thanks a lot!  :)
Angela
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