Resolving dependencies...
Starting     data-default-class-0.1.2.0
Starting     extensible-exceptions-0.1.1.4
Starting     magic-1.1
Starting     dlist-1.0
Building     data-default-class-0.1.2.0
Building     extensible-exceptions-0.1.1.4
Building     dlist-1.0
Failed to install magic-1.1
Build log ( /home/builder/.cabal/logs/ghc-8.10.2/magic-1.1-1RoyXuVqQ6zBGAsTPFSblk.log ):
cabal: Entering directory '/tmp/cabal-tmp-8808/magic-1.1'
Configuring magic-1.1...
cabal: Missing dependency on a foreign library:
* Missing (or bad) C library: magic
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.If the
library file does exist, it may contain errors that are caught by the C
compiler at the preprocessing stage. In this case you can re-run configure
with the verbosity flag -v3 to see the error messages.

cabal: Leaving directory '/tmp/cabal-tmp-8808/magic-1.1'
Starting     old-locale-1.0.0.7
Building     old-locale-1.0.0.7
Completed    extensible-exceptions-0.1.1.4
Completed    data-default-class-0.1.2.0
Completed    old-locale-1.0.0.7
Completed    dlist-1.0
cabal: Error: some packages failed to install:
magic-1.1-1RoyXuVqQ6zBGAsTPFSblk failed during the configure step. The
exception was:
ExitFailure 1
xmonad-wallpaper-0.0.1.5-1wUiPzZRZzTFEjevbiE1Se depends on
xmonad-wallpaper-0.0.1.5 which failed to install.