On Mon, May 7, 2012 at 7:19 PM, Carsten Haitzler <ras...@rasterman.com> wrote:
> On Sun, 6 May 2012 23:42:52 +0200 Vincent Torri <vincent.to...@gmail.com>
> said:
>
>> On Sun, May 6, 2012 at 10:26 PM, Paul Cercueil <p...@crapouillou.net> wrote:
>> >
>> > Hello,
>> >
>> > I've been trying to integrate the EFL libraries inside our small
>> > distribution built using Buildroot. However, I am facing a nasty
>> > problem: the installed .pc files (that are used by pkg-config) do
>> > contain incorrect paths.
>> >
>> > For instance, evas.pc will contain "-I${includedir}/evas-1
>> > -I/opt/toolchain/usr/include/eina-1". As a result, the ./configure
>> > script for (ie.) Edje will prepend its --prefix to those paths, which
>> > will become "-I/opt/toolchain/usr/include/evas-1
>> > -I/opt/toolchain/opt/toolchain/usr/include/eina-1".
>> >
>> > By looking at the source code, it appears that $EINA_CFLAGS is
>> > referenced on evas.pc.in. That value is initialized by pkg-config on the
>> > ./configure script. Usually, using $EINA_CFLAGS on eina.pc.in should be
>> > fine; but Buildroot sets the PKG_CONFIG_SYSROOT_DIR environment
>> > variable, which is prepended to the paths returned by pkg-config. I
>> > believe that environment variable should be cleared before pkg-config is
>> > called.
>>
>> I'm really wondering why EINA_CFLAGS appears in evas.pc.in. It should
>> not. The Cflags value in evas.pc.in should contain the path needed to
>
> it should. Evas.h includes Eina.h. someone has to be able to just use the evas
> pkgconfig info to compile something that JUST includes (and links to) evas.
> thus to make it work it MUST also add in the CFLAGS for eina. the thing
> linking
> to evas should need to not know its dependency chain - if it changes in future
> or not.
Eina.h includes Evil.h and i have absolutely no need to badly hack
eina.pc like that... Hopefully pkg-config does everything it needs to
append the path. If there is a bug, it must be fixed properly, and not
badly like you did
For your information:
http://people.freedesktop.org/~dbn/pkg-config-guide.html
"Cflags: The compiler flags specific to this package and any required
libraries that don't support pkg-config. If the required libraries
support pkg-config, they should be added to Requires or
Requires.private."
Vincent
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