[PATCH] Fix musl compatibility

[Loganaden Velvindron <logan@hackers.mu>]

Add missing constants for libxt_TCPOPTSTRIP.c, in case they are not defined.

(Original patch from VoidLinux)

Signed-off-by: Loganaden Velvindron <logan@hackers.mu>
---
 extensions/libxt_TCPOPTSTRIP.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/extensions/libxt_TCPOPTSTRIP.c b/extensions/libxt_TCPOPTSTRIP.c
index 6897857..828b593 100644
--- a/extensions/libxt_TCPOPTSTRIP.c
+++ b/extensions/libxt_TCPOPTSTRIP.c
@@ -12,6 +12,22 @@
 #ifndef TCPOPT_MD5SIG
 #	define TCPOPT_MD5SIG 19
 #endif
+#ifndef TCPOPT_MAXSEG
+#     define TCPOPT_MAXSEG 2
+#endif
+#ifndef TCPOPT_WINDOW
+#     define TCPOPT_WINDOW 3
+#endif
+#ifndef TCPOPT_SACK_PERMITTED
+#     define TCPOPT_SACK_PERMITTED 4
+#endif
+#ifndef TCPOPT_SACK
+#     define TCPOPT_SACK 5
+#endif
+#ifndef TCPOPT_TIMESTAMP
+#     define TCPOPT_TIMESTAMP 8
+#endif
+
 
 enum {
 	O_STRIP_OPTION = 0,
-- 
2.7.0