[ppc64le] Fixed pg_bitutils.c build error for Power architecture.

Author: PankhudiJ17

WORKSPACE

@@ -8,6 +8,7 @@ http_archive(
     build_file = "//ml_metadata:postgresql.BUILD",
     workspace_file_content = "//ml_metadata:postgresql.WORKSPACE",
     sha256 = "9868c1149a04bae1131533c5cbd1c46f9c077f834f6147abaef8791a7c91b1a1",
+    patches = ["//ml_metadata/third_party:postgresql.patch",],
     strip_prefix = "postgresql-12.1",
     urls = [
         "https://ftp.postgresql.org/pub/source/v12.1/postgresql-12.1.tar.gz",

ml_metadata/third_party/postgresql.patch

@@ -0,0 +1,38 @@
+diff --git src/port/pg_bitutils.c src/port/pg_bitutils.c
+index 7847e8a..17714af 100644
+--- src/port/pg_bitutils.c
++++ src/port/pg_bitutils.c
+@@ -12,12 +12,14 @@
+  */
+ #include "c.h"
+ 
++#if !defined(__ppc__) && !defined(__PPC__) && !defined(__ppc64__) && !defined(__PPC64__)
+ #ifdef HAVE__GET_CPUID
+ #include <cpuid.h>
+ #endif
+ #ifdef HAVE__CPUID
+ #include <intrin.h>
+ #endif
++#endif
+ 
+ #include "port/pg_bitutils.h"
+ 
+@@ -141,6 +143,7 @@ int			(*pg_popcount64) (uint64 word) = pg_popcount64_slow;
+ static bool
+ pg_popcount_available(void)
+ {
++#if !defined(__ppc__) && !defined(__PPC__) && !defined(__ppc64__) && !defined(__PPC64__)
+ 	unsigned int exx[4] = {0, 0, 0, 0};
+ 
+ #if defined(HAVE__GET_CPUID)
+@@ -152,6 +155,9 @@ pg_popcount_available(void)
+ #endif
+ 
+ 	return (exx[2] & (1 << 23)) != 0;	/* POPCNT */
++#else
++	return false;
++#endif
+ }
+ 
+ /*
+