diff --git a/configure.ac b/configure.ac
index d7287f7..581b01e 100755
--- a/configure.ac
+++ b/configure.ac
@@ -154,7 +154,10 @@ fi
 
 # Check for some target-specific stuff
 case "$host" in
-    *-*-aix*) ;;
+    *-*-aix*)
+	# libm is required as well
+	LDFLAGS="$LDFLAGS -lm"
+	;;
     *-*-android*) ;;
     *-*-cygwin*) ;;
     *-*-dgux*) ;;