Re: Help with package AppImage support

[Ekaitz Zarraga <ekaitz@elenq.tech>]

> Hi,
>
> The log reads:
>
> --8<---------------cut here---------------start------------->8---
> -- Found PkgConfig: /gnu/store/krpyb0zi700dcrg9cc8932w4v0qivdg9-pkg-config-0.29.2/bin/pkg-config (found version "0.29.2")
> -- Importing target libfuse via pkg-config (fuse, shared)
> -- Checking for module 'fuse'
> --   Found fuse, version 2.9.9
> -- Importing target libssl via pkg-config (openssl, shared)
> -- Checking for module 'openssl'
> --   Found openssl, version 1.1.1j
> -- Using system mksquashfs
> CMake Error at src/build-runtime.cmake:19 (message):
>   TARGET NOT found libsquashfuse
> Call Stack (most recent call first):
>   src/CMakeLists.txt:16 (include)
>
>
> -- Configuring incomplete, errors occurred!
> See also "/tmp/guix-build-appimagekit-13.drv-0/build/CMakeFiles/CMakeOutput.log".
> command "cmake" "../source" "-DCMAKE_BUILD_TYPE=RelWithDebInfo" "-DCMAKE_INSTALL_PREFIX=/gnu/store/9z0n0kia0kp63vdlvpdlm2qcky67x00y-appimagekit-13" "-DCMAKE_INSTALL_LIBDIR=lib" "-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE" "-DCMAKE_INSTALL_RPATH=/gnu/store/9z0n0kia0kp63vdlvpdlm2qcky67x00y-appimagekit-13/lib" "-DCMAKE_VERBOSE_MAKEFILE=ON" "-DXZ_EXTERNAL=On" "-DUSE_SYSTEM_MKSQUASHFS=On" failed with status 1
> --8<---------------cut here---------------end--------------->8---
>
> Maybe “TARGET NOT found” is CMake’s original way of saying that you’re
> missing a dependency (libsquashfuse), no?

I mean, I already reached that conclusion but if you check the packages in the
original message, the dependency is included. I can't find why isn't it finding
the library.

I need there some help making CMake find the dependency I already included and
packaged.

> BTW, since your ultimate goal is to have ‘guix pack -f appimage’, you
> could look at the AppImage spec.  It might be that you can do the heavy
> lifting of creating a file in that format without resorting to
> AppImageKit.

There are some possible options for this.

Appimage is basically an ELF with the contents on an Squashfs image inside.
When it runs it decompresses itself and runs the contents. Appimagekit is
basically one possible runtime for this behavior, which is just a simple
shell-like launcher.

I just wanted to add this package too, for those who want to generate appimages
by themselves and later decide if I want to use it or not in the actual
implementation.

> HTH,
> Ludo’.

Thanks!
Ekaitz