[bug#38849] Fix IBus-Rime

[kanichos]

IBus uses the component file rime.xml to start the Rime engine. It must be 
patched with appropriate paths.

---
 gnu/packages/ibus.scm | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gnu/packages/ibus.scm b/gnu/packages/ibus.scm
index 42a8d5db32..7daefde021 100644
--- a/gnu/packages/ibus.scm
+++ b/gnu/packages/ibus.scm
@@ -668,6 +668,10 @@ Method Engine.")
                                (assoc-ref inputs "rime-data")
                                "/share/rime-data\"\n")))
              #t))
+         (add-after 'unpack 'fix-paths
+           (lambda* (#:key outputs #:allow-other-keys)
+             (substitute* "rime.xml"
+               (("/usr") (assoc-ref outputs "out"))) #t))
          (delete 'configure))))
     (inputs
      `(("gdk-pixbuf" ,gdk-pixbuf)
-- 
2.23.0