[PATCH:xauth] Work around "error: assignment discards qualifiers from pointer target type"

[Thomas Klausner]

Use __UNCONST where available.
XXX: This should be fixed in a better way instead.
---
 process.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/process.c b/process.c
index 283b4a1..928941f 100644
--- a/process.c
+++ b/process.c
@@ -1894,7 +1894,10 @@ do_generate(const char *inputfilename, int lineno, int argc, const char **argv)
 	 auth_in->name = DEFAULT_PROTOCOL;
     }
     else
-	auth_in->name = protoname;
+#ifndef __UNCONST
+# define __UNCONST(x) x
+#endif
+	auth_in->name = __UNCONST(protoname);
     auth_in->name_length = strlen(auth_in->name);
     auth_in->data = authdata;
     auth_in->data_length = authdatalen;
-- 
1.8.2.3