diff --git a/src/configure b/src/configure
index 691a42c511287ee746b5eae142b8bbf48aaca9e3..45ad0c1f6f98d65b44aeb1ec5ca2c571f35ca51d 100755
--- a/src/configure
+++ b/src/configure
@@ -3872,7 +3872,7 @@ fi
 
 fi
 
-for ac_func in tzset vfork memmove sigsetjmp kill sysconf fpclass
+for ac_func in tzset memmove sigsetjmp kill sysconf fpclass
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
 echo "configure:3879: checking for $ac_func" >&5