* ext/pty/pty.c: parenthesize macro arguments.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Wed Feb  9 23:11:27 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/pty/pty.c: parenthesize macro arguments.
+
 Tue Feb  8 11:47:11 2011  Loren Sands-Ramshaw  <lorensr@gmail.com>
 
 	* array.c: documentation clarification in rotate, rotate!,

ext/pty/pty.c

@@ -152,7 +152,7 @@ chfunc(void *data, char *errbuf, size_t errbuf_len)
     VALUE *argv = carg->argv;
 
 #define ERROR_EXIT(str) do { \
-	strlcpy(errbuf, str, errbuf_len); \
+	strlcpy(errbuf, (str), errbuf_len); \
 	return -1; \
     } while (0)