[CMake] cmake problems on Mac OS X, newest Xcode (2.1)

[Sean McBride]

Hi all,

I am new on this list, so please be gentle. :)

I am using cmake to build vtk, both from CVS.  Recently, I have been
running a dashboard for vtk and tried using:

CMAKE_GENERATOR:INTERNAL=XCode

However, it seems to be somewhat broken, at least with the newest Xcode
(2.1).  There are several problems, and I'm not sure where to start
discussing this. :)

First I'll say that if I instead use:

CMAKE_GENERATOR:INTERNAL=Unix Makefiles

Everything works great, so I think my stuff is (at least mostly) set up ok.

I see problems very early on:

-- Check for working C compiler: gcc
-- Check for working C compiler: gcc -- works
-- Check size of void *
CMake Error: Unable to find executable for TRY_RUN: tried "/Users/sean/
Desktop/vtk/NightlyBuildDir/VTK-XCode/CMakeTmp/cmTryCompileExec" and "/
Users/sean/Desktop/vtk/NightlyBuildDir/VTK-XCode/CMakeTmp/Debug/
cmTryCompileExec".
-- Check size of void * - done
-- Check for working CXX compiler: g++
-- Check for working CXX compiler: g++ -- works
CMake Error: Error required internal CMake variable not set, cmake may
be not be built correctly.
Missing variable is:
CMAKE_SIZEOF_VOID_P

I have determined that one problem is how cmake invokes Apple's
'xcodebuild' command.  Before Xcode 2.1, there were several 'buildsytle'
options (see the old man page here <http://www.hmug.org/man/1/
xcodebuild.php>).  But in 2.1 these flags are no longer accepted and are
replaced with 'configuration' options, xcodebuild gives this error:

deprecated option: -activebuildstyle is no longer supported in
xcodebuild. Use -activeconfiguration instead.


I ran a 'ctest -D Experimental' on cmake itself and there were 3 problems:

(1) somewhere around kwsys-testProcess-6 a spawned process crashed:

Command: testProcess
Path:    /Users/sean/RogueSVNWorkingCopy/Test/trunk/CMake/bin/testProcess
Parent:  testProcess [25464]

Version: ??? (???)

PID:    25465
Thread: 0

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000000

Thread 0 Crashed:
0   testProcess 	0x00002bb0 test4 + 140 (crt.c:355)
1   testProcess 	0x000036fc main + 440 (crt.c:355)
2   testProcess 	0x000021b0 _start + 344 (crt.c:272)
3   testProcess 	0x00002054 start + 60

This is reproducible.  Despite this the test is marked 'passed'.

(2)  50/ 50 Testing Fortran                       ***Failed

This is no big deal I don't think.

(3) no test discovered the problem with xcodebuild I mentioned above


I would be happy to test any solution anyone proposes.  But I'm not
really in a position to muck with the cmake code itself too much, I have
my hands full with my own code and vtk. :)

Thanks!

-- 
____________________________________________________________
Sean McBride, B. Eng                 sean at rogue-research.com
Rogue Research                        www.rogue-research.com 
Mac Software Developer              Montréal, Québec, Canada