Remove -ffile-prefix-map= from CMake module generated compiler flags.
Forwarded: no, Debian specific
Applied-Upstream: <version|URL|commit, identifies patches merged upstream, optional> Reviewed-by: <name and email of a reviewer, optional>
Last-Update: 2024-05-24 <YYYY-MM-DD, last update of the meta-information, optional>
Last-Update: 2024-05-24 <YYYY-MM-DD, last update of the meta-information, optional>
Gbp-Pq: Name 0012-cmake-do-not-export-ffile-prefix.patch