Makefile: add section for SunOS 5.7

Signed-off-by: NBrandon Casey <drafnel@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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