Merge with master

Author: knizhnik

COPYRIGHT

@@ -1,7 +1,7 @@
 PostgreSQL Database Management System
 (formerly known as Postgres, then as Postgres95)
 
-Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
+Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
 
 Portions Copyright (c) 1994, The Regents of the University of California
 

aclocal.m4

@@ -5,7 +5,6 @@ m4_include([config/ax_pthread.m4])
 m4_include([config/c-compiler.m4])
 m4_include([config/c-library.m4])
 m4_include([config/check_decls.m4])
-m4_include([config/docbook.m4])
 m4_include([config/general.m4])
 m4_include([config/libtool.m4])
 m4_include([config/llvm.m4])

config/docbook.m4

@@ -76,6 +76,7 @@ AC_DEFUN([PGAC_LLVM_SUPPORT],
       debuginfodwarf) pgac_components="$pgac_components $pgac_component";;
       orcjit) pgac_components="$pgac_components $pgac_component";;
       passes) pgac_components="$pgac_components $pgac_component";;
+      native) pgac_components="$pgac_components $pgac_component";;
       perfjitevents) pgac_components="$pgac_components $pgac_component";;
     esac
   done;

config/llvm.m4

@@ -1,12 +1,12 @@
 /*-------------------------------------------------------------------------
  *
  * thread_test.c
- *		libc thread test program
+ *		libc threading test program
  *
- * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- *	src/test/thread/thread_test.c
+ *	config/thread_test.c
  *
  *	This program tests to see if your standard libc functions use
  *	pthread_setspecific()/pthread_getspecific() to be thread-safe.
@@ -20,12 +20,7 @@
  *-------------------------------------------------------------------------
  */
 
-#if !defined(IN_CONFIGURE) && !defined(WIN32)
-#include "postgres.h"
-
-/* we want to know what the native strerror does, not pg_strerror */
-#undef strerror
-#endif
+/* We cannot use c.h, as port.h will not exist yet */
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -36,6 +31,7 @@
 #include <string.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <pthread.h>
 
 /* CYGWIN requires this for MAXHOSTNAMELEN */
 #ifdef __CYGWIN__
@@ -47,25 +43,11 @@
 #include <winsock2.h>
 #endif
 
-
 /* Test for POSIX.1c 2-arg sigwait() and fail on single-arg version */
 #include <signal.h>
 int			sigwait(const sigset_t *set, int *sig);
 
 
-#if !defined(ENABLE_THREAD_SAFETY) && !defined(IN_CONFIGURE) && !defined(WIN32)
-int
-main(int argc, char *argv[])
-{
-	fprintf(stderr, "This PostgreSQL build does not support threads.\n");
-	fprintf(stderr, "Perhaps rerun 'configure' using '--enable-thread-safety'.\n");
-	return 1;
-}
-#else
-
-/* This must be down here because this is the code that uses threads. */
-#include <pthread.h>
-
 #define		TEMP_FILENAME_1 "thread_test.1"
 #define		TEMP_FILENAME_2 "thread_test.2"
 
@@ -119,14 +101,12 @@ main(int argc, char *argv[])
 		return 1;
 	}
 
-#ifdef IN_CONFIGURE
 	/* Send stdout to 'config.log' */
 	close(1);
 	dup(5);
-#endif
 
 #ifdef WIN32
-	err = WSAStartup(MAKEWORD(1, 1), &wsaData);
+	err = WSAStartup(MAKEWORD(2, 2), &wsaData);
 	if (err != 0)
 	{
 		fprintf(stderr, "Cannot start the network subsystem - %d**\nexiting\n", err);
@@ -455,5 +435,3 @@ func_call_2(void)
 	pthread_mutex_lock(&init_mutex);	/* wait for parent to test */
 	pthread_mutex_unlock(&init_mutex);
 }
-
-#endif							/* !ENABLE_THREAD_SAFETY && !IN_CONFIGURE */