add double include protection

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@878 fefdeb5f-60dc-0310-8127-8f9354f1896f

diff --git a/src/polypcore/pipe.h b/src/polypcore/pipe.h
index a9b088b..e916778 100644 (file)
--- a/src/polypcore/pipe.h
+++ b/src/polypcore/pipe.h
@@ -1,3 +1,6 @@
+#ifndef foopipehfoo
+#define foopipehfoo
+
 /* $Id$ */
 
 /***
@@ -20,3 +23,5 @@
 ***/
 
 int pipe(int filedes[2]);
+
+#endif