[CMake] What is the purpose of INSTALL_DIR in ExternalProject_Add command?

[Nils Gladitz]

On 04/10/2015 11:16 AM, Cedric Doucet wrote:

> is it possible to make INSTALL_DIR depend on PREFIX?
> I have tried "INSTALL_DIR <PREFIX>/install" but it does not seem to work: 'install' repository is not created.

I don't think so ... but you could use the same variable to construct both.

e.g.

set(MY_PREFIX /foo)

ExternalProject_Add(foo
   PREFIX ${MY_PREFIX}
   INSTALL_DIR ${MY_PREFIX}/install
...
)

Nils