CMake command for paths are equal

Question

Is there a CMake command that returns true if and only if two paths point to the same place (even if the paths are not verbatim equal strings)?

Something like

set(x ../foo)
set(y C:/cmaketest/foo)
if (x PATHEQUAL y)
{
   message(status "YAY")
}

Answer 1

This should mostly work. The one case that it doesn't appear to take into account is filesystems that are not case-sensitive (This includes the default file systems on OS X and Windows, but does not include Linux).

get_filename_component(x ./foo.txt   ABSOLUTE)
get_filename_component(y ././foo.txt ABSOLUTE)

if (x STREQUAL y)
    message(STATUS "Strings are Equal")
else()
    message(STATUS "Strings are Not Equal")
endif()

This outputs:

[11:55am][wlynch@watermelon blah] touch foo.txt
[11:55am][wlynch@watermelon blah] cmake . |& head -n 1
-- Strings are Equal