[CMake] Can CMAKE_BINARY_DIR be realiable used before PROJECT()

[David Cole]

It would seem so...

CMakeLists.txt:
=============
MESSAGE("before PROJECT")
MESSAGE("CMAKE_SOURCE_DIR=${CMAKE_SOURCE_DIR}")
MESSAGE("CMAKE_BINARY_DIR=${CMAKE_BINARY_DIR}")

PROJECT(hey NONE)

MESSAGE("after PROJECT")
MESSAGE("CMAKE_SOURCE_DIR=${CMAKE_SOURCE_DIR}")
MESSAGE("CMAKE_BINARY_DIR=${CMAKE_BINARY_DIR}")


Running that file with CMake 2.6.4 yields something like:
before PROJECT

CMAKE_SOURCE_DIR=C:/Users/davidcole/Desktop/b

CMAKE_BINARY_DIR=C:/Users/davidcole/Desktop/b/b

after PROJECT

CMAKE_SOURCE_DIR=C:/Users/davidcole/Desktop/b

CMAKE_BINARY_DIR=C:/Users/davidcole/Desktop/b/b



Similarly with 2.8.1-rc3:
before PROJECT

CMAKE_SOURCE_DIR=C:/Users/davidcole/Desktop/b

CMAKE_BINARY_DIR=C:/Users/davidcole/Desktop/b/c

after PROJECT

CMAKE_SOURCE_DIR=C:/Users/davidcole/Desktop/b

CMAKE_BINARY_DIR=C:/Users/davidcole/Desktop/b/c





On Fri, Mar 5, 2010 at 6:11 AM, Marcel Loose <loose at astron.nl> wrote:

> Hi all,
>
> Can you rely on the value of CMAKE_BINARY_DIR (and CMAKE_SOURCE_DIR for
> that matter) before the PROJECT() statement has been seen by CMake?
>
> Best regards,
> Marcel Loose.
>
>
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