Add "#ifdef ... #define ... #endif" check for the header file.

Signed-off-by: ydong10 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12287 6f19259b-4bc3-4df7-8a09-765794883524
2011-09-07 02:42:52 +00:00 · 2011-09-07 02:42:52 +00:00 · 8e22eab877
parent 6740ea74e2
commit 8e22eab877
1 changed files with 3 additions and 0 deletions
--- a/PcAtChipsetPkg/Include/Library/IoApicLib.h
+++ b/PcAtChipsetPkg/Include/Library/IoApicLib.h
@ -14,6 +14,8 @@
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

 **/
+#ifndef __IO_APIC_LIB_H__
+#define __IO_APIC_LIB_H__

 /**
  Read a 32-bit I/O APIC register.
@ -100,3 +102,4 @@ IoApicConfigureInterrupt (
  IN BOOLEAN  LevelTriggered,
  IN BOOLEAN  AssertionLevel
  );
+#endif