[Buildroot] PKG_CONFIG_PATH question

[Buildroot] PKG_CONFIG_PATH question

[Łukasz Pułka]

Hi all,

My name is Luke and I am new here.

After two encouraging sessions about buildroot on ELCE, I decided to
give it a try.
I am usually using OpenEmbedded but just for fun I decided to build
similar image with buildroot, I downloaded buildroot-2011.08.
Compiled my own toolchain with crostool-ng (btw, all new CodeSourcery
arm toolchains have ICE when iwmmxt optimization is enabled). And.. i
get stuck for the while.

For the build system I use quite ancient host machine (slackware),
maybe it causes some problems.

I could not compile libxcb, getting error from configure that
xcb-proto version is less than 1.5 (buildroot is looking for
xcb-proto.pc file (during configure) inside " /usr/lib/pkgconfig/" -
on my build system) is that nomal ?

I could move forward by setting environment variable PKC_CONFIG_PATH
to the STAGING_DIR/usr/lib/pkgconfig/, butI do not like this solution.

Best regards,
Luke Pulka

[Buildroot] PKG_CONFIG_PATH question

[Thomas De Schampheleire]

Hi Luke,

2011/10/30 ?ukasz Pu?ka <lukasz@oxnet.pl>:
> Hi all,
>
> My name is Luke and I am new here.
>
> After two encouraging sessions about buildroot on ELCE, I decided to
> give it a try.

Welcome! It's nice to hear that ELCE made a difference!

> I am usually using OpenEmbedded but just for fun I decided to build
> similar image with buildroot, I downloaded buildroot-2011.08.
> Compiled my own toolchain with crostool-ng (btw, all new CodeSourcery
> arm toolchains have ICE when iwmmxt optimization is enabled). And.. i
> get stuck for the while.
>
> For the build system I use quite ancient host machine (slackware),
> maybe it causes some problems.
>
> I could not compile libxcb, getting error from configure that
> xcb-proto version is less than 1.5 (buildroot is looking for
> xcb-proto.pc file (during configure) inside " /usr/lib/pkgconfig/" -
> on my build system) is that nomal ?
>
> I could move forward by setting environment variable PKC_CONFIG_PATH
> to the STAGING_DIR/usr/lib/pkgconfig/, butI do not like this solution.

Could you give some more details, for example (part of) the build log,
showing which package is being installed. Some packages first install
a host- variant. In that case, it is perfectly valid for the configure
step of that host package to check /usr/lib/pkgconfig.

Best regards,
Thomas

[Buildroot] PKG_CONFIG_PATH question

[Łukasz Pułka]

>> For the build system I use quite ancient host machine (slackware),
>> maybe it causes some problems.
>>
>> I could not compile libxcb, getting error from configure that
>> xcb-proto version is less than 1.5 (buildroot is looking for
>> xcb-proto.pc file (during configure) inside " /usr/lib/pkgconfig/" -
>> on my build system) is that nomal ?
>>
>> I could move forward by setting environment variable PKC_CONFIG_PATH
>> to the STAGING_DIR/usr/lib/pkgconfig/, butI do not like this solution.

> Could you give some more details, for example (part of) the build log,
> showing which package is being installed. Some packages first install
> a host- variant. In that case, it is perfectly valid for the configure
> step of that host package to check /usr/lib/pkgconfig.

The error occured when building xcb-proto for the target machine,  not
host-xcb-proto.

My version of pkg-config was 0.21, or 0.20, and it did not supported
PKG_CONFIG_SYSROOT_DIR environment variable.
After updating my build OS (slackware 12)  with newer pkg-config
(0.23) it was possible for me to move forward without the trick with
PKG_CONFIG_PATH.

After some time I found that buildroot generates host-pkg-config
package, but I wonder why buildroot uses my host installed pkg-config,
what is the reason to build host-pkg-config and use pkg-config from my
machine?

Best regards,
Lukasz

[Buildroot] PKG_CONFIG_PATH question

[Peter Korsgaard]

>>>>> "?ukasz" == ?ukasz Pu?ka <lukasz@oxnet.pl> writes:

Hi,

 ?ukasz> The error occured when building xcb-proto for the target
 ?ukasz> machine, not host-xcb-proto.

I guess you mean libxcb?

 ?ukasz> My version of pkg-config was 0.21, or 0.20, and it did not supported
 ?ukasz> PKG_CONFIG_SYSROOT_DIR environment variable.
 ?ukasz> After updating my build OS (slackware 12)  with newer pkg-config
 ?ukasz> (0.23) it was possible for me to move forward without the trick with
 ?ukasz> PKG_CONFIG_PATH.

 ?ukasz> After some time I found that buildroot generates host-pkg-config
 ?ukasz> package, but I wonder why buildroot uses my host installed pkg-config,
 ?ukasz> what is the reason to build host-pkg-config and use pkg-config from my
 ?ukasz> machine?

Because of a missing dependency. I've fixed it in git now.

Thanks.

-- 
Bye, Peter Korsgaard

[Buildroot] PKG_CONFIG_PATH question

[Łukasz Pułka]

> ??ukasz> The error occured when building xcb-proto for the target
> ??ukasz> machine, not host-xcb-proto.
> I guess you mean libxcb?
Yes, I mean libxcb.

> ??ukasz> After some time I found that buildroot generates host-pkg-config
> ??ukasz> package, but I wonder why buildroot uses my host installed pkg-config,
> ??ukasz> what is the reason to build host-pkg-config and use pkg-config from my
> ??ukasz> machine?
>
> Because of a missing dependency. I've fixed it in git now.
Thanks!

Lukasz