@@ -87,6 +87,8 @@ else

 			arch = "aarch64"

 		elseif string.find(machine, "e2k") == 1 then

 			arch = "e2k"

+		elseif string.find(machine, "ppc64") == 1 or string.find(machine, "powerpc64") == 1 then

+			arch = "ppc64"

 		else

 			print("WARNING: Cannot determine architecture from GCC, assuming x86")

 		end

@@ -865,6 +867,8 @@ function setup_all_libs ()

 		table.insert(source_dirs, "lib/sysdep/arch/aarch64");

 	elseif arch == "e2k" then

 		table.insert(source_dirs, "lib/sysdep/arch/e2k");

+	elseif arch == "ppc64" then

+		table.insert(source_dirs, "lib/sysdep/arch/ppc64");

 	end

 	-- OS-specific

--- libraries/source/nvtt/src/src/nvcore/Debug.cpp.orig	2021-02-28 23:45:14 UTC

+++ libraries/source/nvtt/src/src/nvcore/Debug.cpp

@@ -628,6 +628,9 @@ namespace 

 #  elif NV_CPU_X86

         ucontext_t * ucp = (ucontext_t *)secret;

         return (void *)ucp->uc_mcontext.mc_eip;

+#  elif NV_CPU_PPC

+        ucontext_t * ucp = (ucontext_t *)secret;

+        return (void *)ucp->uc_mcontext.mc_srr0;

 #    else

 #      error "Unknown CPU"

 #    endif

--- source/lib/byte_order.h.orig	2021-02-28 23:45:13 UTC

+++ source/lib/byte_order.h

@@ -33,7 +33,7 @@

 #ifndef BYTE_ORDER

 # define LITTLE_ENDIAN 0x4321

 # define BIG_ENDIAN    0x1234

-# if ARCH_IA32 || ARCH_IA64 || ARCH_AMD64 || ARCH_ALPHA || ARCH_ARM || ARCH_AARCH64 || ARCH_MIPS || ARCH_E2K || defined(__LITTLE_ENDIAN__)

+# if ARCH_IA32 || ARCH_IA64 || ARCH_AMD64 || ARCH_ALPHA || ARCH_ARM || ARCH_AARCH64 || ARCH_MIPS || ARCH_E2K || ARCH_PPC64 || defined(__LITTLE_ENDIAN__)

 #  define BYTE_ORDER LITTLE_ENDIAN

 # else

 #  define BYTE_ORDER BIG_ENDIAN

--- source/lib/sysdep/arch.h.orig	2021-02-28 23:45:13 UTC

+++ source/lib/sysdep/arch.h

@@ -76,9 +76,14 @@

 #else

 # define ARCH_E2K 0

 #endif

+#if defined(__PPC64__)

+# define ARCH_PPC64 1

+#else

+# define ARCH_PPC64 0

+#endif

 // ensure exactly one architecture has been detected

-#if (ARCH_IA32+ARCH_IA64+ARCH_AMD64+ARCH_ALPHA+ARCH_ARM+ARCH_AARCH64+ARCH_MIPS+ARCH_E2K) != 1

+#if (ARCH_IA32+ARCH_IA64+ARCH_AMD64+ARCH_ALPHA+ARCH_ARM+ARCH_AARCH64+ARCH_MIPS+ARCH_E2K+ARCH_PPC64) != 1

 # error "architecture not correctly detected (either none or multiple ARCH_* defined)"

 #endif

--- source/lib/sysdep/arch/ppc64/ppc64.cpp.orig	2021-02-28 23:47:02 UTC

+++ source/lib/sysdep/arch/ppc64/ppc64.cpp

@@ -0,0 +1,50 @@

+/* Copyright (C) 2012 Wildfire Games

+ * Copyright (C) 2018 Raptor Engineering, LLC

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining

+ * a copy of this software and associated documentation files (the

+ * "Software"), to deal in the Software without restriction, including

+ * without limitation the rights to use, copy, modify, merge, publish,

+ * distribute, sublicense, and/or sell copies of the Software, and to

+ * permit persons to whom the Software is furnished to do so, subject to

+ * the following conditions:

+ *

+ * The above copyright notice and this permission notice shall be included

+ * in all copies or substantial portions of the Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+/*

+ * routines specific to POWER

+ */

+

+#include "precompiled.h"

+

+#include "lib/sysdep/cpu.h"

+

+intptr_t cpu_AtomicAdd(volatile intptr_t* location, intptr_t increment)

+{

+	return __sync_fetch_and_add(location, increment);

+}

+

+bool cpu_CAS(volatile intptr_t* location, intptr_t expected, intptr_t newValue)

+{

+	return __sync_bool_compare_and_swap(location, expected, newValue);

+}

+

+bool cpu_CAS64(volatile i64* location, i64 expected, i64 newValue)

+{

+	return __sync_bool_compare_and_swap(location, expected, newValue);

+}

+

+const char* cpu_IdentifierString()

+{

+	return "IBM POWER"; // TODO

+}

--- source/ps/GameSetup/HWDetect.cpp.orig	2021-02-28 23:45:13 UTC

+++ source/ps/GameSetup/HWDetect.cpp

@@ -124,6 +124,7 @@ void RunHardwareDetection()

 	scriptInterface.SetProperty(settings, "arch_arm", ARCH_ARM);

 	scriptInterface.SetProperty(settings, "arch_aarch64", ARCH_AARCH64);

 	scriptInterface.SetProperty(settings, "arch_e2k", ARCH_E2K);

+	scriptInterface.SetProperty(settings, "arch_ppc64", ARCH_PPC64);

 #ifdef NDEBUG

 	scriptInterface.SetProperty(settings, "build_debug", 0);