1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/cpplib.h b/gcc/cpplib.h
index 7b3a54a3576..42c817f7eae 100644
--- a/gcc/cpplib.h
+++ b/gcc/cpplib.h
@@ -240,6 +240,10 @@ struct cpp_options
   const char *include_prefix;
   unsigned int include_prefix_len;
 
+  /* Directory prefix for system include directories in the standard search
+     path.  */
+  const char *sysroot;
+
   /* The language we're preprocessing.  */
   enum c_lang lang;