diff -Nru squid-3.1.8.orig/configure.in squid-3.1.8/configure.in
--- squid-3.1.8.orig/configure.in	2010-09-23 23:34:49.000000000 +0200
+++ squid-3.1.8/configure.in	2010-09-23 23:36:41.000000000 +0200
@@ -2730,7 +2730,11 @@
 dnl libcrypt (eg FreeBSD)
 AC_CHECK_LIB(crypt, crypt, [CRYPTLIB="-lcrypt"])
 dnl Solaris10 provides MD5 natively through libmd5
-AC_CHECK_LIB(md5, MD5Init, [CRYPTLIB="$CRYPTLIB -lmd5"])
+case "$host" in
+	*-solaris*)
+	    AC_CHECK_LIB(md5, MD5Init, [CRYPTLIB="$CRYPTLIB -lmd5"])
+	    ;;
+esac
 AC_SUBST(CRYPTLIB)
 
 dnl Check for libdl, used by auth_modules/PAM