CMAKE: Fix potential sorting of empty list

mgerhardy / caveexpress

CaveExpress is a classic 2D platformer with physics-based gameplay and dozens of levels. CavePacker is a Sokoban game.

http://www.caveproductions.org/

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CMAKE: Fix potential sorting of empty list #95

Closed akien-mga closed 8 years ago

akien-mga commented 8 years ago

Was experienced this error on Mageia 6 x86_64 (also confirmed on Debian [1]):

CMake Error at cmake/macros.cmake:131 (list):
  list sub-command SORT requires list to be present.
Call Stack (most recent call first):
  cmake/macros.cmake:726 (create_dir_header)

[1] https://sources.debian.net/src/caveexpress/2.4%2Bgit20160609-1/debian/patches/build.patch/