commit 83c324acd8bd5f32e0ce9b4d3df2f1a0ae46f487
author Mike Hommey <mh@glandium.org> Thu Apr 12 10:13:03 2012 +0200
committer Jason Evans <jasone@canonware.com> Thu Apr 12 08:43:08 2012 -0700
tree 111f4798bd75e30c58e732f9d54f731aad1a069d
parent 5ff709c264e52651de25b788692c62ff1f6f389c

Use a stub replacement and disable dss when sbrk is not supported

configure.ac

diff --git a/configure.ac b/configure.ac
index a272ecd..739cfa9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -678,6 +678,14 @@
 ],
 [enable_dss="0"]
 )
+dnl Check whether the BSD/SUSv1 sbrk() exists.  If not, disable DSS support.
+AC_CHECK_FUNC([sbrk], [have_sbrk="1"], [have_sbrk="0"])
+if test "x$have_sbrk" = "x1" ; then
+  AC_DEFINE([JEMALLOC_HAVE_SBRK], [ ])
+else
+  enable_dss="0"
+fi
+
 if test "x$enable_dss" = "x1" ; then
   AC_DEFINE([JEMALLOC_DSS], [ ])
 fi