[cmake-developers] Cross compiling toolchain variables

[Stephen Kelly]

Stephen Kelly wrote:

> Brad King wrote:
> 
>> These folks should try the CMake 2.8.12 release.  It added these:
>> 
>> OS X: Search system SDKs for frameworks
>> http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=1fce189e
>> 
>> OS X: Enable command-line build without tools in PATH
>> http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=03ab170f
>> 
>> which taught CMake how to search for things in the system SDK
> 
> I think there is a bug here. The paths you added are ignored if I set
> NO_DEFAULT_PATH. It seems to me that _CMAKE_OSX_SYSROOT_PATH should be
> treated as a root path - controlled by NO_CMAKE_FIND_ROOT_PATH, not by
> NO_DEFAULT_PATH. This is the source of the Qt bug report, I think.
> 
> The CMAKE_FIND_ROOT_PATH entries are searched even if NO_DEFAULT_PATH is
> specified. That is also the behavior of CMAKE_SYSROOT and if
> CMAKE_OSX_SYSROOT is to be merged/made obsolete by CMAKE_SYSROOT, then the
> behavior should be the same in CMake 2.8.12.1.

I pushed the osx-sysroot-no-system topic to illustrate what I mean by this. 
I haven't tested it, because I'm not familiar enough with mac, so I haven't 
merged it to next yet. 

Thanks,

Steve.