[Buildroot] building opencv-2.4 using buildroot

[Buildroot] building opencv-2.4 using buildroot

[Doha Ehab]

Hello
 I am trying to build opencv-2.4 for arm using buildroot-2015.08.01 from
build options ->libraries I have chosen static libraries only . when I try
to compile opencv code using the following command :
" buildroot/output/host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc
-static ocv.c -o ocvccode "

I got this error
buildroot/output/host/usr/lib/gcc/arm-buildroot-linux-uclibcgnueabi/4.9.3/../../../../arm-buildroot-linux-uclibcgnueabi/bin/ld:
cannot find -ldl
collect2: error: ld returned 1 exit status

how can I solve this linking issue?

Regards
Doha.
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[Buildroot] building opencv-2.4 using buildroot

[Samuel Martin]

Hi,

On Sat, May 21, 2016 at 3:26 AM, Doha Ehab <dohaehab@gmail.com> wrote:
> Hello
>  I am trying to build opencv-2.4 for arm using buildroot-2015.08.01 from
> build options ->libraries I have chosen static libraries only . when I try
> to compile opencv code using the following command :
> " buildroot/output/host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc
> -static ocv.c -o ocvccode "
>
> I got this error
> buildroot/output/host/usr/lib/gcc/arm-buildroot-linux-uclibcgnueabi/4.9.3/../../../../arm-buildroot-linux-uclibcgnueabi/bin/ld:
> cannot find -ldl
> collect2: error: ld returned 1 exit status
>
> how can I solve this linking issue?

Some OpenCV modules cannot be built in a static-lib-only configuration.

A patch [1] fixing this issue has been merged recently on master.

[1] https://github.com/buildroot/buildroot/commit/07144093d4fd0d5c6f59006a0e58fd5074da0f92

Regards,

-- 
Samuel

[Buildroot] building opencv-2.4 using buildroot

[Doha Ehab]

Hi
 I downloaded the while buildroot zip from here :
https://github.com/buildroot/buildroot.git
after 'make'  then using the same command it didn't work , same error. is
there is something i am missing  ?

Regards
Doha

On Sat, May 21, 2016 at 8:54 AM, Samuel Martin <s.martin49@gmail.com> wrote:

> Hi,
>
> On Sat, May 21, 2016 at 3:26 AM, Doha Ehab <dohaehab@gmail.com> wrote:
> > Hello
> >  I am trying to build opencv-2.4 for arm using buildroot-2015.08.01 from
> > build options ->libraries I have chosen static libraries only . when I
> try
> > to compile opencv code using the following command :
> > " buildroot/output/host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc
> > -static ocv.c -o ocvccode "
> >
> > I got this error
> >
> buildroot/output/host/usr/lib/gcc/arm-buildroot-linux-uclibcgnueabi/4.9.3/../../../../arm-buildroot-linux-uclibcgnueabi/bin/ld:
> > cannot find -ldl
> > collect2: error: ld returned 1 exit status
> >
> > how can I solve this linking issue?
>
> Some OpenCV modules cannot be built in a static-lib-only configuration.
>
> A patch [1] fixing this issue has been merged recently on master.
>
> [1]
> https://github.com/buildroot/buildroot/commit/07144093d4fd0d5c6f59006a0e58fd5074da0f92
>
> Regards,
>
> --
> Samuel
>
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