--- unrtf-0.21.8/configure.ac
+++ unrtf-0.21.8/configure.ac
@@ -46,6 +46,7 @@
     *-*-cygwin*)	AC_SUBST(LIBS, ["-liconv"]);;
     *aix*)		AC_SUBST(LIBS, ["-liconv"]);;
     *-*-darwin*)	AC_SUBST(LIBS, ["-liconv"]);;
+    *-*-solaris*)	AC_SUBST(LIBS, ["-liconv"]);;
 esac
 
 AC_CONFIG_FILES([Makefile