diff --git a/Makefile b/Makefile
index 50002edda3..3890a0e43a 100644
--- a/Makefile
+++ b/Makefile
@@ -712,6 +712,16 @@ ifeq ($(uname_S),SunOS)
 	NO_MEMMEM = YesPlease
 	NO_MKDTEMP = YesPlease
 	NO_MKSTEMPS = YesPlease
+	ifeq ($(uname_R),5.7)
+		NEEDS_RESOLV = YesPlease
+		NO_IPV6 = YesPlease
+		NO_SOCKADDR_STORAGE = YesPlease
+		NO_UNSETENV = YesPlease
+		NO_SETENV = YesPlease
+		NO_STRLCPY = YesPlease
+		NO_C99_FORMAT = YesPlease
+		NO_STRTOUMAX = YesPlease
+	endif
 	ifeq ($(uname_R),5.8)
 		NO_UNSETENV = YesPlease
 		NO_SETENV = YesPlease