Solaris-specific patch; not suitable for upstream. 

diff -rupN squid-3.5.5-orig/helpers/basic_auth/SASL/Makefile.in squid-3.5.5/helpers/basic_auth/SASL/Makefile.in
--- squid-3.5.5-orig/helpers/basic_auth/SASL/Makefile.in	2015-06-16 11:02:41.242508702 -0700
+++ squid-3.5.5/helpers/basic_auth/SASL/Makefile.in	2015-06-16 11:03:18.755629692 -0700
@@ -673,7 +673,7 @@ basic_sasl_auth_SOURCES = basic_sasl_aut
 basic_sasl_auth_LDADD = \
 	$(top_builddir)/lib/libmiscencoding.la \
 	$(COMPAT_LIB) \
-	$(LIBSASL) \
+	-lsasl \
 	$(XTRA_LIBS)
 
 EXTRA_DIST = \