64-bit Windows already used this check; make it universal, and use it in
place of an ifdef on X86_WIN32, to handle non-Windows platforms that use
the underscore, such as Darwin.
Newer versions of Darwin generate the necessary stub functions
automatically and just need a call instruction, but accomodating older
versions as well requires adding the stub.
Now that non-Windows platforms include win32.S, it needs to support
building as position-independent code. This fixes build failures on
target platforms that do not allow text relocations.
Now that non-Windows platforms include win32.S, it needs to support
building as position-independent code. This fixes one source of build
failures on target platforms that do not allow text relocations.
Linux supports the stdcall calling convention, either via functions
explicitly declared with the stdcall attribute, or via code compiled
with -mrtd which effectively makes stdcall the default.
This introduces FFI_STDCALL, FFI_THISCALL, and FFI_FASTCALL on
non-Windows x86-32 platforms, as non-default calling conventions.
