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[1/5] CryptLib: undefine va_arg and friends before redefining them

Message ID 1407850402-11193-2-git-send-email-ard.biesheuvel@linaro.org
State New
Headers show

Commit Message

Ard Biesheuvel Aug. 12, 2014, 1:33 p.m. UTC
Upstream GNU-EFI contains changes to efistdarg.h resulting in the va_start,
va_arg and va_end macros to be #defined unconditionally. Make sure we #undef
them before overriding the definitions.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 Cryptlib/Include/OpenSslSupport.h | 9 +++++++++
 1 file changed, 9 insertions(+)
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Patch

diff --git a/Cryptlib/Include/OpenSslSupport.h b/Cryptlib/Include/OpenSslSupport.h
index 5a2745d7ac4a..84c819a20a3b 100644
--- a/Cryptlib/Include/OpenSslSupport.h
+++ b/Cryptlib/Include/OpenSslSupport.h
@@ -35,6 +35,15 @@  typedef VOID  *FILE;
 // Map all va_xxxx elements to VA_xxx defined in MdePkg/Include/Base.h
 //
 #if !defined(__CC_ARM) // if va_list is not already defined
+
+/*
+ * These are now unconditionally #defined by GNU_EFI's efistdarg.h,
+ * so we should #undef them here before providing a new definition.
+ */
+#undef va_arg
+#undef va_start
+#undef va_end
+
 #define va_list   VA_LIST
 #define va_arg    VA_ARG
 #define va_start  VA_START