Index: fflas-ffpack-2.3.2/configure.ac
===================================================================
--- fflas-ffpack-2.3.2.orig/configure.ac
+++ fflas-ffpack-2.3.2/configure.ac
@@ -172,9 +172,6 @@ echo "----------------------------------
 FF_CHECK_OMP
 
 
-# Checks which SIMD optimization flags to use and set SIMD_CFLAGS accordingly
-INSTR_SET
-AC_SUBST(SIMD_FLAGS)
 
 dnl gcc-4.9.2 bug See https://trac.sagemath.org/ticket/17635#comment:178
 AS_IF([ test  "x$CCNAM" = "xgcc492" ],[REQUIRED_FLAGS="${REQUIRED_FLAGS} -fpermissive"],[])