[openal] Building with MinGW...?
chris.kcat at gmail.com
Sat May 31 00:42:14 EDT 2014
On 05/30/2014 09:19 PM, Mark Sibly wrote:
> Thanks Chris, using mingw-w64 did the trick. I almost had it going with
> mingw-w32, but ran into dsound.h issues so gave up. mingw-w64 also fixed
> some problems I was having with missing c++11 std features...
> Quick question re: mingw-64 though: when I installed it, it had a combo box
> for 'architecture' - i686 or x86_64.
> What do they mean here exactly? Is this what the 64 compilers can 'build'
> for? I selected i686, so does that mean I'm running 64bit compilers that
> generate 32bit exes?
> If so, I take it this is correct for OpenAL32?
i686 is for creating 32-bit libs and apps, and x86_64 is for creating
64-bit libs and apps. Which one to use depends on what you're building
for... 64-bit has some advantages with CPU capabilities and has a lot of
address space, but requires a 64-bit OS. 32-bit is limited to a 4GB
address space per process, but will run on 32-bit and 64-bit OSs (you'll
also need to pass in extra cflags to properly enable SSE and such for
the things you build).
OpenAL Soft will build as 32-bit or 64-bit, but it needs to be the same
as the app it's used for (i.e. a 32-bit dll with a 32-bit exe, or a
64-bit dll with a 64-bit exe; you can't use a 32-bit dll with a 64-bit
exe or a 64-bit dll with a 32-bit exe even on a 64-bit OS).
Note that the 64-bit dll will be called OpenAL32.dll just like the
32-bit dll, because that is what Creative used for its 64-bit drivers
for some reason and OpenAL Soft follows that for compatibility purposes.
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