Avoid deprecated sbrk(2) on OS X.
Avoid referencing sbrk(2) on OS X, because it is deprecated as of OS X
10.9 (Mavericks), and the compiler warns against using it.
diff --git a/configure.ac b/configure.ac
index 73d3f94..8b134a1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -256,6 +256,7 @@
force_tls="0"
DSO_LDFLAGS='-shared -Wl,-dylib_install_name,$(@F)'
SOREV="${rev}.${so}"
+ sbrk_deprecated="1"
;;
*-*-freebsd*)
CFLAGS="$CFLAGS"
@@ -825,7 +826,12 @@
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$have_sbrk" = "x1" ; then
- AC_DEFINE([JEMALLOC_HAVE_SBRK], [ ])
+ if test "x$sbrk_deprecated" == "x1" ; then
+ AC_MSG_RESULT([Disabling dss allocation because sbrk is deprecated])
+ enable_dss="0"
+ else
+ AC_DEFINE([JEMALLOC_HAVE_SBRK], [ ])
+ fi
else
enable_dss="0"
fi