I've attached the patch. We have to change it to call 'make
install-dev' because of 'acl'. How to do it?

# ./pre-inst-env guix-build -K acl

[...]

checking attr/xattr.h usability... no
checking attr/xattr.h presence... no
checking for attr/xattr.h... no

FATAL ERROR: attr/xattr.h does not exist.
Install the extended attributes (attr) development package.
Alternatively, run "make install-dev" from the attr source.
note: keeping build directory
`/tmp/nix-build-b25ama3yvyh1lj8mmrzx6f1yasivh6gl-acl-2.2.51.drv-0'
builder for `/nix/store/b25ama3yvyh1lj8mmrzx6f1yasivh6gl-acl-2.2.51.drv'
failed with exit code 1
@ build-failed /nix/store/b25ama3yvyh1lj8mmrzx6f1yasivh6gl-acl-2.2.51.drv
/nix/store/83cb7g0rn5wv3l3zgyg3rpfgz0nsr53g-acl-2.2.51 1 builder for
`/nix/store/b25ama3yvyh1lj8mmrzx6f1yasivh6gl-acl-2.2.51.drv' failed
with exit code 1
error: build failed: build of
`/nix/store/b25ama3yvyh1lj8mmrzx6f1yasivh6gl-acl-2.2.51.drv' failed

Also, should we place 'attr' and 'acl' in the same file? What name should I use?