Building for different version and/or SDK

[Joshua Root]

On 2010-9-9 17:17 , Ryan Schmidt wrote:
> On Sep 9, 2010, at 01:44, Harry van der Wolf wrote:
> 
>> 2010/9/8 Joshua Root <jmr at macports.org>
>>
>>> This is implemented more sanely, but is still completely unsupported, in
>>> 1.9.0+. Just set macosx_deployment_target to whatever version you want
>>> (e.g. "10.5") in macports.conf. Base will then set
>>> MACOSX_DEPLOYMENT_TARGET in the environment (which is equivalent to
>>> -mmacosx-version-min in CFLAGS) and set configure.sdkroot to the
>>> appropriate SDK, which ends up as "-isysroot foo" in CFLAGS/CPPFLAGS etc.
>>
>> Thanks a lot for your answer. I will start rebuilding tonight.
>>
>> Just to confirm whether I used the correct syntax: I now added to /opt/local/etc/macports/macports.conf the following 2 lines:
>>
>> MACOSX_DEPLOYMENT_TARGET        10.5
>>
>> SDKROOT                         /Developer/SDKs/MacOSX10.5.sdk
> 
> My understanding from what Joshua wrote above is that your macports.conf should be expanded by only the following line:
> 
> macosx_deployment_target 10.5
> 
> And it sounds like you do not set the SDK manually; MacPorts sets it for you based on what you set macosx_deployment_target to.

Correct.

- Josh