[CMake] 2.8/3.0: CMAKE_FORCE_C_COMPILER semantics

[Tim Blechmann]

hi all,

i'm trying to use the iOS.cmake toolchain file from [1]. it works fine
with cmake-2.8.12.2, but fails with cmake-3.0 (today's master), which
gives me:

------>8-------
CMake Error at CMakeLists.txt:16 (project):
  The CMAKE_C_COMPILER:

    gcc

  is not a full path and was not found in the PATH.



CMake Error at CMakeLists.txt:16 (project):
  The CMAKE_CXX_COMPILER:

    g++

  is not a full path and was not found in the PATH.
------>8-------

the toolchain file uses the CMAKE_FORCE_C_COMPILER macro to set the
compiler:

------>8-------
include (CMakeForceCompiler)
CMAKE_FORCE_C_COMPILER (gcc gcc)
CMAKE_FORCE_CXX_COMPILER (g++ g++)
------>8-------


* is this a problem with cmake or with the toolchain file?
* any suggestion for a workaround?

thanks a lot,
tim


[1] https://code.google.com/p/ios-cmake/source/browse/toolchain/iOS.cmake