--- a/mingw-w64/mingw-w64-crt/misc/mingw_getsp.S    2015-08-08 22:18:56.000000000 -0700
+++ b/mingw-w64/mingw-w64-crt/misc/mingw_getsp.S    2015-08-08 22:19:49.000000000 -0700
@@ -27,8 +27,8 @@
 __MINGW_USYMBOL(longjmp):
 #ifdef _WIN64
 #ifndef __SEH__
-  xorl %eax,%eax
-  movl %eax, (%rcx)
+  xorl %rax,%rax
+  movl %rax, (%rcx)
 #endif
   leaq __MINGW_IMP_LSYMBOL(longjmp)(%rip), %rax
   jmpq *(%rax)