Compile OpenCore on legacy macOS's with build_OC.tool

Cannot compile OpenCore on Mavericks. Disregard if Mavericks is unsupported platform. Legacy macOS's do not support HomeBrew. Macports is the only option. I had to upgrade git through Macports, disable self sign ed certificate verification with:

git config --global http.sslVerify false

Double clicked on the build_OC.tool and it failed. The build log is attached. OpenCore_compile_error.zip

Also tried building as per the manual:

. ./edksetup.sh
Loading previous configuration from /Users/mavericks/UDK/Conf/BuildEnv.sh
Using EDK2 in-source Basetools
WORKSPACE: /Users/mavericks/UDK
EDK_TOOLS_PATH: /Users/mavericks/UDK/BaseTools
CONF_PATH: /Users/mavericks/UDK/Conf
Maverickss-Mac-mini:UDK mavericks$ make -C BaseTools 
/Applications/Xcode.app/Contents/Developer/usr/bin/make -C Source/C
Attempting to detect HOST_ARCH from 'uname -m': x86_64
Detected HOST_ARCH of X64 using uname.
mkdir -p .
/Applications/Xcode.app/Contents/Developer/usr/bin/make -C Common
cc  -c  -I .. -I ../Include/Common -I ../Include/ -I ../Include/IndustryStandard -I ../Common/ -I .. -I . -I ../../../../MdePkg/Include/X64/ -I ../../../../MdePkg/Include/ -I ../../../../MdeModulePkg/Include/ -I ../../../../OpenCorePkg/User/Include -fshort-wchar -flto -DUSING_LTO "-DEFIAPI=__attribute__((ms_abi))" -arch x86_64 -arch arm64 -mmacosx-version-min=10.9 -MD -fshort-wchar -fno-strict-aliasing -Wall -Werror -Wno-deprecated-declarations -Wno-self-assign -Wno-unused-result -nostdlib -g -arch x86_64 -arch arm64 -mmacosx-version-min=10.9 -DUEFI_IMAGE_FORMAT_SUPPORT_SOURCES=0x02 -O2  BinderFuncs.c -o BinderFuncs.o
In file included from BinderFuncs.c:9:
In file included from ../Common/BinderFuncs.h:14:
In file included from ../Include/Common/UefiBaseTypes.h:13:
In file included from ../Include/Common/BaseTypes.h:34:
In file included from ../../../../MdePkg/Include/Base.h:21:
../../../../MdePkg/Include/X64/ProcessorBind.h:132:9: error: unknown type name '__UINT64_TYPE__'
typedef __UINT64_TYPE__ UINT64;
        ^
In file included from BinderFuncs.c:9:
In file included from ../Common/BinderFuncs.h:14:
In file included from ../Include/Common/UefiBaseTypes.h:13:
In file included from ../Include/Common/BaseTypes.h:34:
../../../../MdePkg/Include/Base.h:607:9: error: unknown type name '__builtin_ms_va_list'; did you mean '__builtin_va_list'?
typedef __builtin_ms_va_list VA_LIST;
        ^~~~~~~~~~~~~~~~~~~~
        __builtin_va_list
note: '__builtin_va_list' declared here
../../../../MdePkg/Include/Base.h:831:1: error: static_assert failed "sizeof (UINT64) does not meet UEFI Specification Data Type
      requirements"
STATIC_ASSERT (sizeof (UINT64)  == 8, "sizeof (UINT64) does not meet UEFI Specification Data Type requirements");
^              ~~~~~~~~~~~~~~~~~~~~~
../../../../MdePkg/Include/Base.h:815:24: note: expanded from macro 'STATIC_ASSERT'
#define STATIC_ASSERT  _Static_assert
                       ^
3 errors generated.
make[2]: *** [BinderFuncs.o] Error 1
make[1]: *** [Common] Error 2
make: *** [Source/C] Error 2
Maverickss-Mac-mini:UDK mavericks$

acidanthera / bugtracker

Compile OpenCore on legacy macOS's with build_OC.tool #2405