[Cmake] Question regarding CMakeCache.txt

[Anton Deguet]

Hello,

I am trying to "propagate" my CMAKE_INSTALL_PREFIX from one project to 
another.  I have a source tree with the code of my libraries which I 
compile in a separate build tree.  Whenever I compile an application 
based on this library, I include a myLibrary.cmake which has been 
generated from a myLibrary.cmake.in which contains:

SET(CMAKE_INSTALL_PREFIX @CMAKE_INSTALL_PREFIX@).

I checked the generated myLibrary.cmake and the prefix is correct. 
 Then, in the CMakeLists.txt of my application, I include my library's 
configuration file (INCLUDE(myLibrary.cmake)) and nothing happens. 
 Everything that I found so far is that I need to either run ccmake or 
edit the CMakeCache.txt file.  Is there a more automatic way to 
"inherit" this value from a project to another?  Anyway to modify this 
value from a CMakeLists.txt?

Also, I tried to set CMAKE_VERBOSE_MAKEFILE to ON by default in my 
CMakeLists.txt and I can't.  I guess this is a related issue.

Thanks

Anton