[Patch] MdeModulePkg RegularExpressionDxe: Enable STDARG for variable arguments

[Patch] MdeModulePkg RegularExpressionDxe: Enable STDARG for variable arguments

[Liming Gao]

Set macro for variable arguments, and remove the hard code definition
to avoid the potential duplicated definition.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
---
 MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regerror.c     | 1 -
 MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf | 3 +++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regerror.c b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regerror.c
index 222e8e6..d92b61e 100644
--- a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regerror.c
+++ b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regerror.c
@@ -28,7 +28,6 @@
  */
 
 #include "regint.h"
-#define HAVE_STDARG_PROTOTYPES
 #if 0
 #include <stdio.h> /* for vsnprintf() */
 
diff --git a/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf b/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf
index 16e91bd..18e4d2f 100644
--- a/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf
+++ b/MdeModulePkg/Universal/RegularExpressionDxe/RegularExpressionDxe.inf
@@ -109,3 +109,6 @@
 
   # Oniguruma: error: variable 'fp' set but not used
   GCC:*_*_*_CC_FLAGS = -Wno-error=unused-but-set-variable
+  
+  # Enable STDARG for variable arguments
+  *_*_*_CC_FLAGS = -DHAVE_STDARG_H
-- 
2.10.0.windows.1