--- /dev/null
+When compiled with glibc the config_scan.c wants to use the
+cpupolicy2numeric() function which is only available when
+HAVE_SCHED_SETSCHEDULER is set. It looks like the wrong define was used here.
+
+This fixes a build problem with glibc in combination with the force
+ac_cv_func_sched_setscheduler=no in the OpenWrt CONFIGURE_VARS.
+
+--- a/lib/config_scan.c
++++ b/lib/config_scan.c
+@@ -3891,7 +3891,7 @@ YY_RULE_SETUP
+ SERRX(0);
+
+ #else /* !SOCKS_CLIENT */
+-#if HAVE_SCHED_SETAFFINITY
++#if HAVE_SCHED_SETSCHEDULER
+
+ BEGIN(0);
+
+@@ -3899,9 +3899,9 @@ YY_RULE_SETUP
+ yyerrorx("unknown scheduling policy \"%s\"", yytext);
+
+ return SCHEDULEPOLICY;
+-#else /* !HAVE_SCHED_SETAFFINITY */
++#else /* !HAVE_SCHED_SETSCHEDULER */
+ yyerrorx("setting cpu scheduling policy is not supported on this platform");
+-#endif /* !HAVE_SCHED_SETAFFINITY */
++#endif /* !HAVE_SCHED_SETSCHEDULER */
+
+ #endif /* SOCKS_CLIENT */
+ }
+--- a/lib/config_scan.l
++++ b/lib/config_scan.l
+@@ -456,7 +456,7 @@ cpu {
+ SERRX(0);
+
+ #else /* !SOCKS_CLIENT */
+-#if HAVE_SCHED_SETAFFINITY
++#if HAVE_SCHED_SETSCHEDULER
+
+ BEGIN(0);
+
+@@ -464,9 +464,9 @@ cpu {
+ yyerrorx("unknown scheduling policy \"%s\"", yytext);
+
+ return SCHEDULEPOLICY;
+-#else /* !HAVE_SCHED_SETAFFINITY */
++#else /* !HAVE_SCHED_SETSCHEDULER */
+ yyerrorx("setting cpu scheduling policy is not supported on this platform");
+-#endif /* !HAVE_SCHED_SETAFFINITY */
++#endif /* !HAVE_SCHED_SETSCHEDULER */
+
+ #endif /* SOCKS_CLIENT */
+ }