[LLVMdev] CMake and Xcode

Óscar Fuentes ofv at wanadoo.es
Thu Jan 13 11:29:01 PST 2011


Nick Kledzik <kledzik at apple.com> writes:

> I've been using make to build llvm but use Xcode for most other
> projects I work on.  I decided to try running cmake to build an xcode
> project for llvm.  The results were disappointing.

Sorry to hear this.

> The generated xcode project does not encode that executables link with
> static libraries.  Instead, the static libraries are snuck in under
> "Other linker flags", then some pre- and post- scripts on every target
> are run which cause xcode to re-check mod times on files and forces a
> re-link.  This is painfully slow.  What should be a two second:
> recompile file, update static library, re-link executable turns into a
> 15 second running of dozens of shells scripts that touch and copy
> files.
>
> I tried making a simple cmake project with a static library and a main
> executable, and saw the same crazy xcode project generated.
>
> Are there cmake settings to correct this?  Is there some reason the
> xcode projects are made like this?  Or is is just that the cmake
> maintainers have not had the time to invest in generated proper xcode
> projects?

I have no access to an OS/X machine so there is little I can do about
this issues. However, your description indicates that those are generic
cmake issues and not restricted to LLVM. I suggest that you re-post your
message to the cmake mailing list:

http://www.cmake.org/cmake/help/mailing.html

(posting through gmane works fine.) The cmake guys are quite friendly
and eager to help.




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