indragiek/INAppStoreWindow — comment on commit 26b3f82d7540e47c09aef0026450b87aa251cda6
File: INAppStoreWindow.m line 318
By indragiek:

It would be needed, because if the base SDK is set to 10.7 and the deployment target is 10.6, __MAC_OS_X_VERSION_MAX_ALLOWED would still = 1070.