CMake Warning (dev) at CMake/export.cmake:48 (set):
Policy CMP0053 is not set: Simplify variable reference and escape sequence
evaluation. Run "cmake --help-policy CMP0053" for policy details. Use the
cmake_policy command to set the policy and suppress this warning.
Changed old-style @variable@ replacement to ${variable}.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10467 ea41ed52-d2ee-0310-a9c1-e6b18d33e121