Add initial comments.
git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@571 4407c894-4637-0410-b4f5-ada5f102cad1
diff --git a/mingw-w64-crt/include/internal.h b/mingw-w64-crt/include/internal.h
index f2a67dd..10b637f 100644
--- a/mingw-w64-crt/include/internal.h
+++ b/mingw-w64-crt/include/internal.h
@@ -1,3 +1,9 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the w64 mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within this package.
+ */
+
#ifndef _INC_INTERNAL
#define _INC_INTERNAL
diff --git a/mingw-w64-crt/include/oscalls.h b/mingw-w64-crt/include/oscalls.h
index 86d30a9..cdcb23e 100644
--- a/mingw-w64-crt/include/oscalls.h
+++ b/mingw-w64-crt/include/oscalls.h
@@ -1,3 +1,9 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the w64 mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within this package.
+ */
+
#ifndef _INC_OSCALLS
#define _INC_OSCALLS
diff --git a/mingw-w64-crt/include/sect_attribs.h b/mingw-w64-crt/include/sect_attribs.h
index f376913..681b0cb 100644
--- a/mingw-w64-crt/include/sect_attribs.h
+++ b/mingw-w64-crt/include/sect_attribs.h
@@ -1,3 +1,9 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the w64 mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within this package.
+ */
+
#if defined (__ia64__) || defined (__x86_64)
#define _ATTRIBUTES
#else
