--- plug-ins/script-fu/Makefile.am.orig
+++ plug-ins/script-fu/Makefile.am
@@ -59,7 +59,7 @@
 	$(top_builddir)/plug-ins/dbbrowser/dbbrowser_utils.o	\
 	$(top_builddir)/lib/libcinepaint.la			\
 	$(X_LIBS)						\
-	-lc
+	-lm
 
 DEPS = \
 	$(top_builddir)/plug-ins/dbbrowser/dbbrowser_utils.o	\