[AD] Apple dudes, help with OS X 10.6

[Peter Wang <novalazy@xxxxxxxxxx>]

Need some help getting the 4.4 branch building on OS X 10.6.

1. From a.cc posts I see we need to use the 10.5 SDK, which as far as I
can tell should be done in CMake by calling:

    cmake -DCMAKE_OSX_SYSROOT=/Developer/SDKs/MacOSX10.5.sdk ..

2. You need to set the environment variable MACOSX_DEPLOYMENT_TARGET
to the minimum version you want to run on:

    export MACOSX_DEPLOYMENT_TARGET=10.5

make docs works but make alleg results in an error:

[  0%] Building CXX object CMakeFiles/alleg-main.dir/src/macosx/main.m.o
In file included from /Users/wangp/4.4/src/macosx/main.m:21:
/Users/wangp/4.4/include/allegro/platform/aintosx.h:86: error: cannot find interface declaration for 'NSQuickDrawView', superclass of
'AllegroView'
/Users/wangp/4.4/src/macosx/main.m: In function '-[AllegroAppDelegate application:openFile:]':
/Users/wangp/4.4/src/macosx/main.m:59: warning: 'lossyCString' is deprecated (declared at /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSString.h:346)
make[3]: *** [CMakeFiles/alleg-main.dir/src/macosx/main.m.o] Error 1
make[2]: *** [CMakeFiles/alleg-main.dir/all] Error 2
make[1]: *** [CMakeFiles/alleg.dir/rule] Error 2
make: *** [alleg] Error 2

Peter