FreeBSD is not a sysv platform, so use freebsd.S instead of sysv.S (as is

also the case in FreeBSD's port of libffi).

Reviewed by: dickinsm

Modules/_ctypes/libffi/fficonfig.py.in

@@ -6,7 +6,7 @@ ffi_platforms = {
     'MIPS_IRIX': ['src/mips/ffi.c', 'src/mips/o32.S', 'src/mips/n32.S'],
     'MIPS_LINUX': ['src/mips/ffi.c', 'src/mips/o32.S'],
     'X86': ['src/x86/ffi.c', 'src/x86/sysv.S'],
-    'X86_FREEBSD': ['src/x86/ffi.c', 'src/x86/sysv.S'],
+    'X86_FREEBSD': ['src/x86/ffi.c', 'src/x86/freebsd.S'],
     'X86_WIN32': ['src/x86/ffi.c', 'src/x86/win32.S'],
     'SPARC': ['src/sparc/ffi.c', 'src/sparc/v8.S', 'src/sparc/v9.S'],
     'ALPHA': ['src/alpha/ffi.c', 'src/alpha/osf.S'],