GDNative setup instructions fail on OSX

**Your Godot version:**
3.4 stable

**Issue description:**
I was following the instructions for setting up GDNative [from the docs](https://docs.godotengine.org/en/stable/tutorials/plugins/gdnative/gdnative-cpp-example.html) and they fail to compile on OSX stating `unsupported architecture`

The exact same build directive works fine on the example repository [provided here](https://github.com/BastiaanOlij/gdnative_cpp_example) however.

**Errors are shown below**

scons platform=osx generate_bindings=yes -j4
scons: Reading SConscript files ...
src/gen: File exists
src/gen: File exists
scons: done reading SConscript files.
scons: Building targets ...
clang++ -o src/core/Basis.o -c -arch x86_64 -arch arm64 -std=c++14 -Og -g -I. -Igodot-headers -Iinclude -Iinclude/gen -Iinclude/core src/core/Basis.cpp
clang++ -o src/core/PoolArrays.o -c -arch x86_64 -arch arm64 -std=c++14 -Og -g -I. -Igodot-headers -Iinclude -Iinclude/gen -Iinclude/core src/core/PoolArrays.cpp
clang++ -o src/core/Vector3.o -c -arch x86_64 -arch arm64 -std=c++14 -Og -g -I. -Igodot-headers -Iinclude -Iinclude/gen -Iinclude/core src/core/Vector3.cpp
clang++ -o src/core/CameraMatrix.o -c -arch x86_64 -arch arm64 -std=c++14 -Og -g -I. -Igodot-headers -Iinclude -Iinclude/gen -Iinclude/core src/core/CameraMatrix.cpp
In file included from src/core/Vector3.cpp:31:
In file included from include/core/Vector3.hpp:34:
In file included from godot-headers/gdnative/vector3.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:32:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/cdefs.h:807:2: error: Unsupported architecture
#error Unsupported architecture
^
In file included from src/core/Vector3.cpp:31:
In file included from include/core/Vector3.hpp:34:
In file included from godot-headers/gdnative/vector3.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:33:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/machine/_types.h:34:2: error: architecture not supported
#error architecture not supported
^
In file included from src/core/Vector3.cpp:31:
In file included from include/core/Vector3.hpp:34:
In file included from godot-headers/gdnative/vector3.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:55:9: error: unknown type name '__int64_t'
typedef __int64_t __darwin_blkcnt_t; /* total blocks */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:56:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_blksize_t; /* preferred block size */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:57:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_dev_t; /* dev_t */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:60:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_gid_t; /* [???] process and group IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:61:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_id_t; /* [XSI] pid_t, uid_t, or gid_t*/
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:62:9: error: unknown type name '__uint64_t'; did you mean 'uint64_t'?
typedef __uint64_t __darwin_ino64_t; /* [???] Used for 64 bit inodes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_types/_uint64_t.h:31:28: note: 'uint64_t' declared here
typedef unsigned long long uint64_t;
^
In file included from src/core/Vector3.cpp:31:
In file included from include/core/Vector3.hpp:34:
In file included from godot-headers/gdnative/vector3.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:68:9: error: unknown type name '__darwin_natural_t'
typedef __darwin_natural_t __darwin_mach_port_name_t; /* Used by mach */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:70:9: error: unknown type name '__uint16_t'
typedef __uint16_t __darwin_mode_t; /* [???] Some file attributes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:71:9: error: unknown type name '__int64_t'
typedef __int64_t __darwin_off_t; /* [???] Used for file sizes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:72:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_pid_t; /* [???] process and group IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:73:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_sigset_t; /* [???] signal set */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:74:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_suseconds_t; /* [???] microseconds */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:75:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_uid_t; /* [???] user IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:76:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_useconds_t; /* [???] microseconds */
^
In file included from src/core/Vector3.cpp:31:
In file included from include/core/Vector3.hpp:34:
In file included from godot-headers/gdnative/vector3.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:53:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types/_intptr_t.h:30:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/machine/types.h:37:2: error: architecture not supported
#error architecture not supported
^
In file included from src/core/Vector3.cpp:31:
In file included from include/core/Vector3.hpp:34:
In file included from godot-headers/gdnative/vector3.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:53:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types/_intptr_t.h:32:9: error: unknown type name '__darwin_intptr_t'
typedef __darwin_intptr_t intptr_t;
^
In file included from src/core/Vector3.cpp:31:
In file included from include/core/Vector3.hpp:34:
In file included from godot-headers/gdnative/vector3.h:54:
In file included from godot-headers/gdnative/basis.h:54:
In file included from godot-headers/gdnative/gdnative.h:143:
In file included from godot-headers/gdnative/string.h:39:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/wchar.h:118:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/wchar.h:70:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_types.h:43:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_wctype_t;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
scons: *** [src/core/Vector3.o] Error 1
In file included from src/core/PoolArrays.cpp:31:
In file included from include/core/PoolArrays.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:32:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/cdefs.h:807:2: error: Unsupported architecture
#error Unsupported architecture
^
In file included from src/core/PoolArrays.cpp:31:
In file included from include/core/PoolArrays.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:33:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/machine/_types.h:34:2: error: architecture not supported
#error architecture not supported
^
In file included from src/core/PoolArrays.cpp:31:
In file included from include/core/PoolArrays.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:55:9: error: unknown type name '__int64_t'
typedef __int64_t __darwin_blkcnt_t; /* total blocks */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:56:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_blksize_t; /* preferred block size */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:57:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_dev_t; /* dev_t */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:60:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_gid_t; /* [???] process and group IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:61:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_id_t; /* [XSI] pid_t, uid_t, or gid_t*/
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:62:9: error: unknown type name '__uint64_t'; did you mean 'uint64_t'?
typedef __uint64_t __darwin_ino64_t; /* [???] Used for 64 bit inodes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_types/_uint64_t.h:31:28: note: 'uint64_t' declared here
typedef unsigned long long uint64_t;
^
In file included from src/core/PoolArrays.cpp:31:
In file included from include/core/PoolArrays.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:68:9: error: unknown type name '__darwin_natural_t'
typedef __darwin_natural_t __darwin_mach_port_name_t; /* Used by mach */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:70:9: error: unknown type name '__uint16_t'
typedef __uint16_t __darwin_mode_t; /* [???] Some file attributes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:71:9: error: unknown type name '__int64_t'
typedef __int64_t __darwin_off_t; /* [???] Used for file sizes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:72:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_pid_t; /* [???] process and group IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:73:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_sigset_t; /* [???] signal set */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:74:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_suseconds_t; /* [???] microseconds */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:75:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_uid_t; /* [???] user IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:76:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_useconds_t; /* [???] microseconds */
^
In file included from src/core/PoolArrays.cpp:31:
In file included from include/core/PoolArrays.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:53:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types/_intptr_t.h:30:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/machine/types.h:37:2: error: architecture not supported
#error architecture not supported
^
In file included from src/core/PoolArrays.cpp:31:
In file included from include/core/PoolArrays.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:53:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types/_intptr_t.h:32:9: error: unknown type name '__darwin_intptr_t'
typedef __darwin_intptr_t intptr_t;
^
In file included from src/core/PoolArrays.cpp:31:
In file included from include/core/PoolArrays.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:54:
In file included from godot-headers/gdnative/pool_arrays.h:155:
In file included from godot-headers/gdnative/color.h:54:
In file included from godot-headers/gdnative/gdnative.h:143:
In file included from godot-headers/gdnative/string.h:39:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/wchar.h:118:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/wchar.h:70:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_types.h:43:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_wctype_t;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
scons: *** [src/core/PoolArrays.o] Error 1
In file included from src/core/Basis.cpp:31:
In file included from include/core/Basis.hpp:34:
In file included from godot-headers/gdnative/basis.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:32:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/cdefs.h:807:2: error: Unsupported architecture
#error Unsupported architecture
^
In file included from src/core/Basis.cpp:31:
In file included from include/core/Basis.hpp:34:
In file included from godot-headers/gdnative/basis.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:33:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/machine/_types.h:34:2: error: architecture not supported
#error architecture not supported
^
In file included from src/core/Basis.cpp:31:
In file included from include/core/Basis.hpp:34:
In file included from godot-headers/gdnative/basis.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:55:9: error: unknown type name '__int64_t'
typedef __int64_t __darwin_blkcnt_t; /* total blocks */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:56:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_blksize_t; /* preferred block size */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:57:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_dev_t; /* dev_t */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:60:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_gid_t; /* [???] process and group IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:61:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_id_t; /* [XSI] pid_t, uid_t, or gid_t*/
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:62:9: error: unknown type name '__uint64_t'; did you mean 'uint64_t'?
typedef __uint64_t __darwin_ino64_t; /* [???] Used for 64 bit inodes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_types/_uint64_t.h:31:28: note: 'uint64_t' declared here
typedef unsigned long long uint64_t;
^
In file included from src/core/Basis.cpp:31:
In file included from include/core/Basis.hpp:34:
In file included from godot-headers/gdnative/basis.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:68:9: error: unknown type name '__darwin_natural_t'
typedef __darwin_natural_t __darwin_mach_port_name_t; /* Used by mach */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:70:9: error: unknown type name '__uint16_t'
typedef __uint16_t __darwin_mode_t; /* [???] Some file attributes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:71:9: error: unknown type name '__int64_t'
typedef __int64_t __darwin_off_t; /* [???] Used for file sizes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:72:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_pid_t; /* [???] process and group IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:73:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_sigset_t; /* [???] signal set */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:74:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_suseconds_t; /* [???] microseconds */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:75:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_uid_t; /* [???] user IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:76:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_useconds_t; /* [???] microseconds */
^
In file included from src/core/Basis.cpp:31:
In file included from include/core/Basis.hpp:34:
In file included from godot-headers/gdnative/basis.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:53:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types/_intptr_t.h:30:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/machine/types.h:37:2: error: architecture not supported
#error architecture not supported
^
In file included from src/core/Basis.cpp:31:
In file included from include/core/Basis.hpp:34:
In file included from godot-headers/gdnative/basis.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:53:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types/_intptr_t.h:32:9: error: unknown type name '__darwin_intptr_t'
typedef __darwin_intptr_t intptr_t;
^
In file included from src/core/Basis.cpp:31:
In file included from include/core/Basis.hpp:34:
In file included from godot-headers/gdnative/basis.h:54:
In file included from godot-headers/gdnative/gdnative.h:143:
In file included from godot-headers/gdnative/string.h:39:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/wchar.h:118:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/wchar.h:70:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_types.h:43:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_wctype_t;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
In file included from src/core/CameraMatrix.cpp:31:
In file included from include/core/CameraMatrix.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:32:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/cdefs.h:807:2: error: Unsupported architecture
#error Unsupported architecture
^
In file included from src/core/CameraMatrix.cpp:31:
In file included from include/core/CameraMatrix.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:33:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/machine/_types.h:34:2: error: architecture not supported
#error architecture not supported
^
In file included from src/core/CameraMatrix.cpp:31:
In file included from include/core/CameraMatrix.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:55:9: error: unknown type name '__int64_t'
typedef __int64_t __darwin_blkcnt_t; /* total blocks */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:56:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_blksize_t; /* preferred block size */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:57:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_dev_t; /* dev_t */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:60:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_gid_t; /* [???] process and group IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:61:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_id_t; /* [XSI] pid_t, uid_t, or gid_t*/
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:62:9: error: unknown type name '__uint64_t'; did you mean 'uint64_t'?
typedef __uint64_t __darwin_ino64_t; /* [???] Used for 64 bit inodes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_types/_uint64_t.h:31:28: note: 'uint64_t' declared here
typedef unsigned long long uint64_t;
^
In file included from src/core/CameraMatrix.cpp:31:
In file included from include/core/CameraMatrix.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:52:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:68:9: error: unknown type name '__darwin_natural_t'
typedef __darwin_natural_t __darwin_mach_port_name_t; /* Used by mach */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:70:9: error: unknown type name '__uint16_t'
typedef __uint16_t __darwin_mode_t; /* [???] Some file attributes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:71:9: error: unknown type name '__int64_t'
typedef __int64_t __darwin_off_t; /* [???] Used for file sizes */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:72:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_pid_t; /* [???] process and group IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:73:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_sigset_t; /* [???] signal set */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:74:9: error: unknown type name '__int32_t'
typedef __int32_t __darwin_suseconds_t; /* [???] microseconds */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:75:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_uid_t; /* [???] user IDs */
^
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types.h:76:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_useconds_t; /* [???] microseconds */
^
In file included from src/core/CameraMatrix.cpp:31:
In file included from include/core/CameraMatrix.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:53:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types/_intptr_t.h:30:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/machine/types.h:37:2: error: architecture not supported
#error architecture not supported
^
In file included from src/core/CameraMatrix.cpp:31:
In file included from include/core/CameraMatrix.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:38:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdint.h:123:
In file included from /Library/Developer/CommandLineTools/usr/lib/clang/12.0.0/include/stdint.h:52:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/stdint.h:53:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/sys/_types/_intptr_t.h:32:9: error: unknown type name '__darwin_intptr_t'
typedef __darwin_intptr_t intptr_t;
^
In file included from src/core/CameraMatrix.cpp:31:
In file included from include/core/CameraMatrix.hpp:34:
In file included from include/core/Defs.hpp:90:
In file included from include/core/GodotGlobal.hpp:34:
In file included from include/core/Array.hpp:34:
In file included from godot-headers/gdnative/array.h:54:
In file included from godot-headers/gdnative/pool_arrays.h:155:
In file included from godot-headers/gdnative/color.h:54:
In file included from godot-headers/gdnative/gdnative.h:143:
In file included from godot-headers/gdnative/string.h:39:
In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/wchar.h:118:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/wchar.h:70:
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_types.h:43:9: error: unknown type name '__uint32_t'
typedef __uint32_t __darwin_wctype_t;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
scons: *** [src/core/Basis.o] Error 1
20 errors generated.
scons: *** [src/core/CameraMatrix.o] Error 1
scons: building terminated because of errors.

**URL to the documentation page:**
https://docs.godotengine.org/en/stable/tutorials/plugins/gdnative/gdnative-cpp-example.html