[CMake] -E echo doen't handle apostrophes

[Brad King]

Brandon J. Van Every wrote:
> Using CMake 2.4.2.  Here's my mighty CMakeLists.txt:
> 
> ADD_CUSTOM_TARGET(test
>  COMMAND ${CMAKE_COMMAND} -E echo "It's difficult to handle apostrophes."
> )
> 
> I used CCMake under Cygwin to generate the Makefile.  It dies thus:
> 
> Brandon J. Van Every at kahlo ~/echo
> $ make test
> /bin/sh: -c: line 0: unexpected EOF while looking for matching `''
> /bin/sh: -c: line 1: syntax error: unexpected end of file
> make[3]: *** [test] Error 2
> make[2]: *** [CMakeFiles/test.dir/all] Error 2
> make[1]: *** [CMakeFiles/test.dir/rule] Error 2
> make: *** [test] Error 2

This is not cmake -E, but the Makefile generator.  It is not properly
escaping the single quote when it writes the argument to the Makefile
build rule.  There are actually a few situations when the generators do
not properly escape everything.  Please submit a bug report.

Thanks,
-Brad