$NetBSD: patch-plug-ins_retinex_Makefile.am,v 1.1 2018/12/31 13:11:12 ryoon Exp $

--- plug-ins/retinex/Makefile.am.orig	2011-11-28 16:57:28.000000000 +0000
+++ plug-ins/retinex/Makefile.am
@@ -20,7 +20,7 @@ LDADD = \
 	$(X_LIBS) \
         $(top_builddir)/libhalf/cinepaint_half.lo       \
         $(OPENEXR_LIBS) \
-	-lc
+	-lm
 
 DEPS = $(top_builddir)/lib/libcinepaint.la