summaryrefslogtreecommitdiff
path: root/configure.in
diff options
context:
space:
mode:
authorAndi Kleen <ak@linux.intel.com>2013-05-16 19:17:14 -0700
committerAndi Kleen <ak@linux.intel.com>2013-07-02 08:46:55 -0700
commit1717da59aed9612becd56aaa1249aac695af4c8a (patch)
tree0b69e8ee62804482fd7bd951c918abdd9d15c0a3 /configure.in
parent49186d21ef2d87986bccaf0a7c45c48c91b265f3 (diff)
downloadglibc-1717da59aed9612becd56aaa1249aac695af4c8a.tar.gz
Add a configure option to enable lock elision and disable by default
Can be enabled with --enable-lock-elision=yes at configure time.
Diffstat (limited to 'configure.in')
-rw-r--r--configure.in9
1 files changed, 9 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index cc065dbfab..cf118f8ffa 100644
--- a/configure.in
+++ b/configure.in
@@ -184,6 +184,15 @@ if test "$enable_stackguard_randomize" = yes; then
AC_DEFINE(ENABLE_STACKGUARD_RANDOMIZE)
fi
+AC_ARG_ENABLE([lock-elision],
+ AC_HELP_STRING([--enable-lock-elision[=yes/no]],
+ [Enable lock elision for pthread mutexes and rwlocks by default]),
+ [enable_lock_elision=$enableval],
+ [enable_lock_elision=no])
+if test "$enable_lock_elision" = yes ; then
+ AC_DEFINE(ENABLE_LOCK_ELISION)
+fi
+
dnl Generic infrastructure for drop-in additions to libc.
AC_ARG_ENABLE([add-ons],
AC_HELP_STRING([--enable-add-ons@<:@=DIRS...@:>@],