--- microcode/config.h.in.orig
+++ microcode/config.h.in
@@ -86,7 +86,7 @@
 #undef HAVE_FDATASYNC
 
 /* Define to 1 if you have the `feclearexcept' function. */
-#undef HAVE_FECLEAREXCEPT
+#define HAVE_FECLEAREXCEPT 1
 
 /* Define to 1 if you have the `fedisableexcept' function. */
 #undef HAVE_FEDISABLEEXCEPT
@@ -101,10 +101,10 @@
 #undef HAVE_FEGETEXCEPT
 
 /* Define to 1 if you have the `fegetexceptflag' function. */
-#undef HAVE_FEGETEXCEPTFLAG
+#define HAVE_FEGETEXCEPTFLAG 1
 
 /* Define to 1 if you have the `fegetround' function. */
-#undef HAVE_FEGETROUND
+#define HAVE_FEGETROUND 1
 
 /* Define to 1 if you have the `feholdexcept' function. */
 #undef HAVE_FEHOLDEXCEPT
@@ -119,16 +119,16 @@
 #undef HAVE_FERAISEEXCEPT
 
 /* Define to 1 if you have the `fesetenv' function. */
-#undef HAVE_FESETENV
+#define HAVE_FESETENV 1
 
 /* Define to 1 if you have the `fesetexceptflag' function. */
 #undef HAVE_FESETEXCEPTFLAG
 
 /* Define to 1 if you have the `fesetround' function. */
-#undef HAVE_FESETROUND
+#define HAVE_FESETROUND 1
 
 /* Define to 1 if you have the `fetestexcept' function. */
-#undef HAVE_FETESTEXCEPT
+#define HAVE_FETESTEXCEPT 1
 
 /* Define to 1 if you have the `feupdateenv' function. */
 #undef HAVE_FEUPDATEENV
