This commit fixes the following warning originally introduced in
1325260 (Add macros cmake_push/pop_check_state() as discussed on the list.)
Argument not separated from preceding token by whitespace.
This patch adds two macros cmake_push_check_state() and
cmake_pop_check_state(), which can be used to save and restore
the contents of the CMAKE_REQUIRED_xxx variables.
Alex
Jean-Christophe Fillion-Robin
Alex Neundorf