patch-darwin-ppc.diff

--- folly/Portability.h.orig	2022-07-30 03:08:35.000000000 +0545
+++ folly/Portability.h	2022-08-10 23:12:09.000000000 +0545
@@ -103,12 +103,18 @@
 #define FOLLY_AARCH64 0
 #endif
 
-#if defined(__powerpc64__)
+#if defined(__powerpc64__) || defined(__ppc64__)
 #define FOLLY_PPC64 1
 #else
 #define FOLLY_PPC64 0
 #endif
 
+#if defined(__ppc__)
+#define FOLLY_PPC 1
+#else
+#define FOLLY_PPC 0
+#endif
+
 #if defined(__s390x__)
 #define FOLLY_S390X 1
 #else
@@ -120,6 +126,7 @@
 constexpr bool kIsArchAmd64 = FOLLY_X64 == 1;
 constexpr bool kIsArchAArch64 = FOLLY_AARCH64 == 1;
 constexpr bool kIsArchPPC64 = FOLLY_PPC64 == 1;
+constexpr bool kIsArchPPC = FOLLY_PPC == 1;
 constexpr bool kIsArchS390X = FOLLY_S390X == 1;
 } // namespace folly
 
@@ -318,6 +325,9 @@
 #else
 constexpr auto kIsLittleEndian = true;
 #endif
+#elif defined(__APPLE__) && defined(__POWERPC__)
+// Darwin ppc/ppc64
+constexpr auto kIsLittleEndian = false;
 #else
 constexpr auto kIsLittleEndian = __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__;
 #endif


# https://github.com/mr-c/misc/wiki/pause-techniques-on-many-architectures
--- folly/portability/Asm.h.orig	2022-07-30 03:08:35.000000000 +0545
+++ folly/portability/Asm.h	2022-08-10 23:07:57.000000000 +0545
@@ -41,8 +41,10 @@
   asm volatile("pause");
 #elif FOLLY_AARCH64 || (defined(__arm__) && !(__ARM_ARCH < 7))
   asm volatile("yield");
-#elif FOLLY_PPC64
+#elif FOLLY_PPC64 && !(defined(__APPLE__))
   asm volatile("or 27,27,27");
+#elif (FOLLY_PPC || FOLLY_PPC64) && defined(__APPLE__)
+  __asm__ volatile ("or r27,r27,r27" ::: "memory");
 #endif
 }
 } // namespace folly


# https://github.com/facebook/folly/issues/1834
--- folly/detail/base64_detail/Base64Api.cpp.orig	2022-08-14 12:11:09.000000000 +0700
+++ folly/detail/base64_detail/Base64Api.cpp	2022-08-14 12:19:29.000000000 +0700
@@ -31,10 +31,16 @@
         base64URLDecodeSWAR};
   }
 #endif
+#if defined(__POWERPC__) // PowerPC BE
+  return {
+      base64EncodeScalar,
+      base64URLEncode};
+#else // Everything but PowerPC BE
   return {
       base64EncodeScalar,
       base64URLEncodeScalar,
       base64DecodeSWAR,
       base64URLDecodeSWAR};
+#endif
 }
 } // namespace folly::detail::base64_detail