--- ./configure.ac.ORIGIN	2021-01-08 16:24:57 +0100
+++ ./configure.ac	2021-01-08 16:30:49 +0100
@@ -894,6 +894,9 @@
       fi
 
       PY3LINK="-l$PY3VERSION"
+      case $host in
+        *-*-aix*) PY3LINK="$PY3LINK -lm";;
+      esac
 
       AC_MSG_CHECKING([for Python 3.x library])
       if test -z "$PY3LINK"; then