Make sure we match on this block.

Index: lib/x86_64/libm_inlines_amd.h
--- lib/x86_64/libm_inlines_amd.h.orig
+++ lib/x86_64/libm_inlines_amd.h
@@ -283,7 +283,7 @@ raise_fpsw_flags(int flags)
 {
 #if defined(DONOTDEFINE_WINDOWS)
   _mm_setcsr(_mm_getcsr() | flags);
-#elif defined(linux)
+#elif defined(TARGET_LINUX_X8664)
   unsigned int cw;
   /* Get the current floating-point control/status word */
   asm volatile("STMXCSR %0" : "=m"(cw));
