D27614: build: fix the build where install prefix is not user-writable

[Luca Beltrame]

lbeltrame added a comment.


  +1

REPOSITORY
  R266 Breeze Icons

REVISION DETAIL
  https://phabricator.kde.org/D27614

To: bshah, ngraham, lbeltrame
Cc: kde-frameworks-devel, LeGast00n, cblack, GB_2, michaelh, ngraham, bruns