--- a/configure.ac
+++ b/configure.ac
@@ -435,10 +435,7 @@ if test "$enable_fixed_point" = "yes" ; then
     AC_DEFINE([SPANDSP_USE_FIXED_POINT], [1], [Enable fixed point processing, where possible, instead of floating point])
     SPANDSP_USE_FIXED_POINT="#define SPANDSP_USE_FIXED_POINT 1"
 else
-    AX_FIXED_POINT_MACHINE([$host],
-        [AC_DEFINE([SPANDSP_USE_FIXED_POINT], [1], [Enable fixed point processing, where possible, instead of floating point])
-        SPANDSP_USE_FIXED_POINT="#define SPANDSP_USE_FIXED_POINT 1"],
-        [SPANDSP_USE_FIXED_POINT="#undef SPANDSP_USE_FIXED_POINT"])
+    SPANDSP_USE_FIXED_POINT="#undef SPANDSP_USE_FIXED_POINT"]
 fi
 AX_MISALIGNED_ACCESS_FAILS([$host],
     [AC_DEFINE([SPANDSP_MISALIGNED_ACCESS_FAILS], [1], [Do not expect a misaligned memory access to work correctly])