[CMake] installing pdb files

[Randy Hancock]

(Very sorry for screwing up my first message. Take 2)

I fought with trying to get pdb files copied to a specific location
during the install step of my build. I finally have something working
and this is what I've come up with:

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/\${CMAKE_INSTALL_CONFIG_NAME}/project_name.pdb
DESTINATION ${SYMBOLS_DIR})

where SYMBOLS_DIR is set to something like:
set(SYMBOLS_DIR "${CMAKE_SOURCE_DIR}/dist/symbols")

The tricky thing was getting the "Debug"/"Release" variable to work.
Apparently the secret spell is to use \${CMAKE_INSTALL_CONFIG_NAME}. I
presume the backslash is for delaying evaluation of the variable until
the install step is actually run. The other weird thing is that the
variable CMAKE_INSTALL_CONFIG_NAME isn't documented in --help-full and
isn't in the --help-variable-list list.

So I have a few questions:

1) Is there a better way to do what I'm doing?
2) Is CMAKE_INSTALL_CONFIG_NAME deprecated? If so, what is the
alternative? If not, where is the documentation?

Thanks,
Randy