Cannot find Pkg-Config when compiling opencv

[kennethone]

Hello, I am following the directions here:

https://visualgdb.com/tutorials/raspberry/opencv/build/

I copied pkg-config.exe to C:/SysGCC/Raspberry/bin

I added cmake environment variables:

PKG_CONFIG_SYSROOT_DIR=C:/SysGCC/Raspberry/arm-linux-gnueabihf/sysroot
PKG_CONFIG_PATH=C:/SysGCC/Raspberry/arm-linux-gnueabihf/sysroot/usr/lib/arm-linux-gnueabihf/pkgconfig;C:/SysGCC/Raspberry/arm-linux-gnueabihf/sysroot/usr/share/pkgconfig

 

All those folders are in correct place.

 

The problem is it’s not building GTK+ support

I’m getting build warnings, like:

can’t find ffmpeg – ‘pkg-config’ utility is missing

Which indicates pvk-config is not found.

 

What is missing in the tutorial?

 

 

I noticed pkg-config requires some complex installation on windows,

https://stackoverflow.com/questions/1710922/how-to-install-pkg-config-in-windows

 

[kennethone]

Ignore the last 2 lines above, that was for pkg-config not pkg-config-lite.

Still the question remains, cmake cannot find pkg-config and it cannot build the GTK library

 

I made sure the sysroot is synchronized, and I included  /usr/share/pkgconfig and /opt/vc  in the synchronized folders.

Again, both of these folders contain .pc files. Thanks,

C:/SysGCC/Raspberry/arm-linux-gnueabihf/sysroot/usr/lib/arm-linux-gnueabihf/pkgconfig

C:/SysGCC/Raspberry/arm-linux-gnueabihf/sysroot/usr/share/pkgconfig

 

• This reply was modified 6 years, 2 months ago by kennethone.
• This reply was modified 6 years, 2 months ago by kennethone.

[support]

Hi,

No problem. Please let us know the exact message you get now (after installing pkg-config and resyncing the sysroot). Please also double-check that you have set environment variables mentioned in step #7.

[Author]

Posts