The pkgconfig files defines the wrong prefix: It is the build directory, while
it should be the installation prefix. This is caused by Makefiles replacing
`PREFIX` by `$(shell pwd)`.
See <https://gitlab.com/sequoia-pgp/sequoia/-/issues/502> for details.
* gnu/packages/sequoia.scm (sequoia)[fix-pkgconfig-file-substitutes]: New
phase.
(("\\ssetup.py\\s+install\\s")
" setup.py install --root=/ --single-version-externally-managed "))
#t)))
+ (add-after 'unpack 'fix-pkgconfig-file-substitutes
+ ;; preempt Makefiles replacing PREFIX by pwd
+ (lambda* (#:key outputs #:allow-other-keys)
+ (let ((out (assoc-ref outputs "out")))
+ (substitute* "ffi/sequoia.pc.in"
+ (("PREFIX") out))
+ (substitute* "openpgp-ffi/sequoia-openpgp.pc.in"
+ (("PREFIX") out))
+ #t)))
(add-after 'unpack 'set-missing-env-vars
(lambda* (#:key inputs #:allow-other-keys)
;; FIXME: why do we need to set this here?