extra-cmake-modules: remove ECMPrintVariables.cmake

[Alexander Neundorf]

Hi,

e-c-m has a macro ecm_print_variables()
From the documentation:

# Example:
#   ecm_print_variables(CMAKE_C_COMPILER
#                       CMAKE_MAJOR_VERSION THIS_ONE_DOES_NOT_EXIST)
# Gives:
#   -- CMAKE_C_COMPILER="/usr/bin/gcc" ; CMAKE_MAJOR_VERSION="2" ;
#      THIS_ONE_DOES_NOT_EXIST=""


Now that kde frameworks depends on cmake 2.8.12, this could be removed, since 
cmake now has something similar.
include(CMakePrintHelpers)

cmake_print_variables(CMAKE_C_COMPILER
                      CMAKE_MAJOR_VERSION THIS_ONE_DOES_NOT_EXIST)

and additionally for printing properties (again from the docs):

cmake_print_properties(TARGETS foo bar
                       PROPERTIES LOCATION INTERFACE_INCLUDE_DIRS)
# This will print the LOCATION and INTERFACE_INCLUDE_DIRS properties for both
# targets foo and bar.


These two functions are useful mostly for debugging, and make this more 
convenient.

If somebody feels like it, I think it would be a good idea to remove 
ECMPrintVariables.cmake, now that there is a replacement in cmake.

Alex