[CMake] install name for fortran dylibs on mac

[Izaak Beekman]

Hi,
After much head scratching and googling, I found a way to get the dynamic
library built in a project of mine to have the correct install name, so
long as `DESTDIR=/some/path` is NOT specified upon install. Basically I
want to export the library from both the build tree and the install tree so
that client projects can choose whether or not they want to install the
project (which provides static and dynamic libraries) or just link against
it from the build tree. (If they choose to link against the dylib in the
build tree the this could cause them issues down the road, for example if
they `make clean`,  but the implications of linking against a dylib in the
build tree seem fairly obvious.) Right now I am doing this by using the
CMAKE_INSTALL_NAME_DIR variable. I just have the full path to the install
directory in that variable. This way when I build it CMake is smart enough
to use the build tree as the install name, then change it during the
install. However, it would be nice to be able to support DESTDIR.

Is there a way to do this? Or a better way than I am currently doing it?
Should I be building a framework or bundle on mac... the using
`fixup_bundle()` or the like... This seems like overkill for this library,
but maybe it's the only portable easy way to do this. Or maybe I could call
install_name_tool after the install to ensure that the dylib knows the full
absolute path to itself?

Other than explicitly setting the
Izaak Beekman
===================================
(301)244-9367
UMD-CP Visiting Graduate Student
Aerospace Engineering
ibeekman at umiacs.umd.edu
ibeekman at umd.edu
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.cmake.org/pipermail/cmake/attachments/20140502/ad476e9d/attachment.html>