pkg-config missing packages

[s77rt]

Looks that packages are missing?
(Building for linux)

Building for linux amd64
go: creating new go.mod: module fyne-cross-temp-module
go: finding ...
go: downloading ...
go: extracting ...
# pkg-config --cflags  -- gio-2.0 glib-2.0 gobject-2.0
Package gio-2.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gio-2.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gio-2.0' found
Package glib-2.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `glib-2.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'glib-2.0' found
Package gobject-2.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gobject-2.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gobject-2.0' found
pkg-config: exit status 1
Could not build for linux/amd64: exit status 2

[lucor]

It looks like you are compling an application that require additional C dependencies not available into the docker image. If not could you please share a minimal sample code to reproduce ?

Please note that at the moment only the dependencies required to build fyne applications are installed into the docker image. Support for a custom docker image is planned for the upcoming 2.0 version.

[s77rt]

@lucor
how it's able to build for windows but not for linux?

[lucor]

I don't know about the details of the application you are trying to compile but probably this means that one or more deps in your application uses CGO and that windows ships the development headers needed by the deps.

You'd refer to the library documentation since the prerequisites can vary dependending on the target platform. These are for example the fyne dependencies needed for development: https://fyne.io/develop/

[s77rt]

Okay thanks,
Just one question,
is there any diff between building for linux (using linux) and building for linux (using fyne-cross)

[lucor]

There is no difference in terms of builds, fyne-cross uses a docker image based on debian 10.
But please note that since we compiling using CGO some libraries are dinamically linked (i.e. libX11.so.6) and it won't work on old systems with different a version (i.e. libX11.so.5).

A detailed discussion about this topic is available here: fyne-io/fyne/issues/512

[s77rt]

okay, thanks for your support :)