[libcamera-devel] Question about libcamera headers

[Laurent Pinchart]

Hi David,

On Mon, Jun 29, 2020 at 09:17:51AM +0100, David Plowman wrote:
> Hi everyone
> 
> Probably a silly question, but maybe someone can enlighten me...
> 
> I'm trying to build my libcamera apps against the version that I've
> "installed" on my Pi. In my file I have "#include
> <libcamera/camera_manager.h>", but I get a "header not found" error.
> And it's right, camera_manager.h is actually installed to
> /usr/local/include/libcamera/libcamera (note the double libcamera).
> But including libcamera/libcamera/camera_manager.h fails too when it
> meets the includes inside camera_manager.h.
> 
> I assume I've missed something obvious... any suggestions?

You need to pass -I/usr/local/include/libcamera to the compiler. The
compiler (and linker) flags are provided by pkg-config:

$ pkg-config --cflags camera
-I/usr/local/include/libcamera

You may need to set PKG_CONFIG_PATH=/usr/local/lib64/pkgconfig/
depending on your system configuration.

I would recommend building your libcamera application with meson, it
will then handle pkg-config for you.

-- 
Regards,

Laurent Pinchart