File 0341-erts-runtime_tools-Remove-some-vfork-residues.patch of Package erlang

From 8d5418b9b89b24ac04477b6141d440f5099f0f81 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Mon, 2 Jul 2018 21:14:58 +0200
Subject: [PATCH] erts,runtime_tools: Remove some vfork residues

The use of vfork was removed in OTP-19
with the introduction of the dedicated forker process.
---
 erts/configure.in                            | 23 -----------------------
 lib/runtime_tools/src/system_information.erl |  1 -
 2 files changed, 24 deletions(-)

diff --git a/erts/configure.in b/erts/configure.in
index 9e8ffd5ec5..2b3d97cfdd 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -2012,29 +2012,6 @@ esac
 
 AC_CHECK_DECLS([posix2time, time2posix],,,[#include <time.h>])
 
-disable_vfork=false
-if test "x$EMU_THR_LIB_NAME" != "x"; then
-	AC_MSG_CHECKING([if vfork is known to hang multithreaded applications])
-	case $host_os in
-		osf*)
-			AC_MSG_RESULT(yes)
-			disable_vfork=true;;
-		*)
-			AC_MSG_RESULT(no);;
-	esac
-fi
-
-if test $disable_vfork = false; then
-	AC_FUNC_VFORK
-	if test $ac_cv_func_vfork_works = no; then
-		disable_vfork=true
-	fi
-fi
-
-if test $disable_vfork = true; then
-	AC_DEFINE(DISABLE_VFORK, 1, [Define if you want to disable vfork.])
-fi
-
 AC_FUNC_VPRINTF
 
 dnl The AC_DEFINEs are necessary for autoheader to work. :-(
diff --git a/lib/runtime_tools/src/system_information.erl b/lib/runtime_tools/src/system_information.erl
index 136ee55b54..8f7bfa195b 100644
--- a/lib/runtime_tools/src/system_information.erl
+++ b/lib/runtime_tools/src/system_information.erl
@@ -400,7 +400,6 @@ os_getenv_erts_specific() ->
 	    "ERL_MALLOC_LIB",
 	    "ERL_MAX_PORTS",
 	    "ERL_MAX_ETS_TABLES",
-	    "ERL_NO_VFORK",
 	    "ERL_NO_KERNEL_POLL",
 	    "ERL_THREAD_POOL_SIZE",
 	    "ERLC_EMULATOR",
-- 
2.16.4