[Qgis-developer] Re: OSX build notes

[William Kyngesburye]

Some more universal notes.

- Strickly speaking, the universal SDK is only needed when building  
ON PPC.  The system on Intel is already universal, so the SDK isn't  
needed for linking.

But, when I removed the SDK path from CMAKE_OSX_SYSROOT, cmake still  
inserts the -isysroot flag, just without a value.  This breaks GCC.   
So, it's a bit of a bug in cmake, and the SDK path is always needed.

- So, a problem with the SDK (and it is still needed when using the  
ccub trick, unless you hack the ccub source and remove it) is that  
only the system paths are in the SDK (it's kind of like chrooting  
everything).  Anything installed in /usr/local or other non-standard  
locations, and even /Library/Frameworks, will not be found.

The way around this, if the SDK must be used, is to symlink those  
into the SDK (one of the rare times I mess with Apple-installed stuff).

For /usr/local:

sudo ln -s /usr/local /Developer/SDKs/MacOSX10.4u.sdk/usr/local

For /Library/Frameworks:

sudo mkdir -p /Developer/SDKs/MacOSX10.4u.sdk/Library
sudo ln -s /Library/Frameworks /Developer/SDKs/MacOSX10.4u.sdk/ 
Library/Frameworks

And others similarly.

-----
William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
http://www.kyngchaos.com/

First Pogril: Why is life like sticking your head in a bucket filled  
with hyena offal?
Second Pogril: I don't know.  Why IS life like sticking your head in  
a bucket filled with hyena offal?
First Pogril: I don't know either.  Wretched, isn't it?

-HitchHiker's Guide to the Galaxy