[libunwind][MIPS]: Add support for unwinding in O32 and N64 processes.

This supports the soft-float ABI only and has been tested with both clang
and gcc on FreeBSD.

Reviewed By: sdardis, compnerd

Differential Revision: https://reviews.llvm.org/D38110


git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@320528 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/src/config.h b/src/config.h
index 07ca26b..0f29b77 100644
--- a/src/config.h
+++ b/src/config.h
@@ -71,7 +71,7 @@
     defined(__ppc__) || defined(__ppc64__) ||                                  \
     (!defined(__APPLE__) && defined(__arm__)) ||                               \
     (defined(__arm64__) || defined(__aarch64__)) ||                            \
-    (defined(__APPLE__) && defined(__mips__))
+    defined(__mips__)
 #define _LIBUNWIND_BUILD_ZERO_COST_APIS
 #endif