#73 [PATCH] Always prefer the external <stdarg.h> for MSVC compilation

[Pete Batard]

The __builtin_va_###() intrinsics apply only to GCC-like compilers and
MSVC's <stdarg.h> works just fine with gnu-efi.
Without this patch, one has to define GNU_EFI_USE_EXTERNAL_STDARG to
make gnu-efi work with a Microsoft toolchain, which is annoying...</stdarg.h>

[Nigel Croxon]

commit ebdde0bc4b0ea18620b92c84be85dfc55e0b75ed (HEAD -> master)
Author: Pete Batard pete@akeo.ie
Date: Wed Feb 17 00:15:54 2021 +0000

Always prefer the external <stdarg.h> for MSVC compilation