From 5aff60d96efac96a41b514ed167f13eb787a415f Mon Sep 17 00:00:00 2001
From: Rickard Green <rickard@erlang.org>
Date: Mon, 26 Sep 2016 17:05:50 +0200
Subject: Support for dirty BIFs

---
 erts/configure.in | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'erts/configure.in')

diff --git a/erts/configure.in b/erts/configure.in
index 2018e19b76..e1233cee59 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -139,6 +139,13 @@ AS_HELP_STRING([--enable-dirty-schedulers], [enable dirty scheduler support]),
     *)  enable_dirty_schedulers=yes ;;
   esac ], enable_dirty_schedulers=default)
 
+AC_ARG_ENABLE(dirty-schedulers-test,
+AS_HELP_STRING([--enable-dirty-schedulers-test], [enable dirty scheduler test (for debugging purposes)]),
+[ case "$enableval" in
+    yes)  enable_dirty_schedulers_test=yes ;;
+    *) enable_dirty_schedulers_test=no ;;
+  esac ], enable_dirty_schedulers_test=no)
+
 AC_ARG_ENABLE(smp-support,
 AS_HELP_STRING([--enable-smp-support], [enable smp support])
 AS_HELP_STRING([--disable-smp-support], [disable smp support]),
@@ -1050,6 +1057,22 @@ esac
 AC_MSG_RESULT($DIRTY_SCHEDULER_SUPPORT)
 AC_SUBST(DIRTY_SCHEDULER_SUPPORT)
 
+DIRTY_SCHEDULER_TEST=$enable_dirty_schedulers_test
+test $DIRTY_SCHEDULER_SUPPORT = yes || DIRTY_SCHEDULER_TEST=no
+AC_SUBST(DIRTY_SCHEDULER_TEST)
+test $DIRTY_SCHEDULER_TEST != yes || {
+    test -f "$ERL_TOP/erts/CONF_INFO" || echo "" > "$ERL_TOP/erts/CONF_INFO"
+    cat >> $ERL_TOP/erts/CONF_INFO <<EOF
+
+                 WARNING:
+                   Dirty Scheduler Test has been enabled. This
+                   feature is for debugging purposes only.
+                   Poor performance as well as strange system
+                   characteristics is expected!
+
+EOF
+}
+
 if test $ERTS_BUILD_SMP_EMU = yes; then
 
 	if test $found_threads = no; then
-- 
cgit v1.2.3