abg-tools-utils: add missing header include guards

	* include/abg-tools-utils.h: add header include guards

Signed-off-by: Matthias Maennich <maennich@google.com>

diff --git a/include/abg-tools-utils.h b/include/abg-tools-utils.h
index a63f4db..4d35d53 100644 (file)
--- a/include/abg-tools-utils.h
+++ b/include/abg-tools-utils.h
@@ -20,6 +20,9 @@
 
 ///@file
 
+#ifndef __ABG_TOOLS_UTILS_H
+#define __ABG_TOOLS_UTILS_H
+
 #include <string>
 #include <set>
 #include <ostream>
@@ -304,3 +307,5 @@ build_corpus_group_from_kernel_dist_under(const string&     root,
       abort();                                                         \
   } while (false)
 }//end namespace abigail
+
+#endif //__ABG_TOOLS_UTILS_H