tree a4b684fa05faa50371a8a06cfd007040a060dc13
parent 8f4dcb25f1be74a8c12c0f9eeb67b6b0755563f5
author Alex Stewart <alexs.mac@gmail.com> 1400011059 +0100
committer Alex Stewart <alexs.mac@gmail.com> 1400011059 +0100

Adding function to update CMake cache variables and preserve help.

- Previously we were replicating the same two lines to update a cache
  variable whilst preserving its help string.
- This commit adds a function which wraps up this common operation into
  a single line.

Change-Id: Ic78a5adf5d59262bbbcec1e353ded7620391e862