CMake stuff

[Paul Martz]

Well, it seems like most of the CMake dbl prec auto-detection is working now,
for several test cases. Anyone care to do an update and try it again?

--
-Paul Martz Skew Matrix Software
http://www.skew-matrix.com/

[Karrot]

*cleans up environment again for fresh builds* :)

[Juan Sebastián Casallas]

I've found a test case that doesn't work, it may be a corner case, though:

I have two bullet installations, say one for testing and one that's stable. The stable one is on the default path and has DOUBLE_PRECISION and the other doesn't.

The first time I generate the osgBullet cmake, it detects the stable installation and outputs:

"Bullet double precision detected. Automatically defining BT_USE_DOUBLE_PRECISION for osgBullet."

However, I want to use my bullet test installation, which doesn't have DOUBLE_PRECISION, so I change from "Default Installation" to "Alternative Install Location", regenerate and then enter the adequate path on "BulletInstallLocation", I regenerate and get:

"Bullet single precision detected. Not defining BT_USE_DOUBLE_PRECISION for osgBullet."

However, the BT_USE_DOUBLE_PRECISION box is still checked.

I tested with cmake 2.6 both on Mac OS X 10.6.8 (Snow Leopard) and Windows XP and got the same results

----------------------

Juan Sebastian 

On Wed, Nov 9, 2011 at 9:39 AM, Karrot <dennis.c...@gmail.com> wrote:

*cleans up environment again for fresh builds* :)

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[Karrot]

Ah, right, Just needs a forced uncheck if double precision is not
found then.

ie.

===================================================================
--- CMakeModules/FindBulletHelper.cmake (revision 281)
+++ CMakeModules/FindBulletHelper.cmake (working copy)
@@ -205,6 +205,7 @@
)
if( _result )
message( STATUS "Bullet single precision detected. Not
defining BT_USE_DOUBLE_PRECISION for osgBullet." )
+ set( OSGBULLET_USE_DOUBLE_PRECISION OFF CACHE BOOL ""
FORCE )
else()
message( WARNING "Unable to determine single or double
precision. Contact development staff." )
message( "Build output follows:" )

(not tested, but should work.. (asumption is the m..))

Add the set(.. line in your findbullet, delete your cache and try the
same sequence again.

[Juan Sebastián Casallas]

I've attached a small patch that fixes this issue, I've tested it on Snow Leopard and Windows XP.

Juan Sebastian

2011/11/9 Juan Sebastián Casallas <juan.s....@gmail.com>

[Juan Sebastián Casallas]

Oh sorry, I hadn't seen this (darn gmail pop polling frequency...), it's the same as the patch I've sent and tested.

[Karrot]

Haha, no problem, I just posted it as plain text since the
googlegroups doesn't allow for attachments (or I just haven't found
out how).

Eitherway Paul can just import that patch then.

[Paul Martz]

Thanks, guys! This is now committed.
   -Paul