ports/186997: [patch] math/atlas compile error with clang 3.4 on i386

[Don Lewis]

Not sure what happened to the patch.  Here it is again:

--- tune/blas/gemm/CASES/ATL_dmm4x1x90_x87.c.orig       2011-05-14 10:34:10.000000000 -0700
+++ tune/blas/gemm/CASES/ATL_dmm4x1x90_x87.c    2014-02-23 12:58:36.000000000 -0800
@@ -1581,7 +1581,7 @@
         lea     0(pAE,lda,4), pAE
    #endif
 #endif
-        sub     $1, MM
+        subq    $1, MM
         jnz     MLOOP
 
         sub     incAn, pA0
@@ -1596,7 +1596,7 @@
         add     ldb, pB0
         prefetcht0      256(pB0,ldb,2)
         prefetcht0      320(pB0,ldb,2)
-        sub     $1, NN
+        subq    $1, NN
         jnz     NLOOP
 
 DONE: