commit c096ccfe111ca3c849a0104517a2a1f123985307
author Elliot Ronaghan <ronawho@gmail.com> Tue Jul 12 15:52:18 2016 -0700
committer Jason Evans <jasone@canonware.com> Mon Sep 26 10:38:59 2016 -0700
tree 0162a914a06832fa350157b682e656294c67fbb9
parent 61f467e16a2b925a0e77241b87b5d1f1fbcb96d0

Fix a bug in __builtin_unreachable configure check

In 1167e9e, I accidentally tested je_cv_gcc_builtin_ffsl instead of
je_cv_gcc_builtin_unreachable (copy-paste error), which meant that
JEMALLOC_INTERNAL_UNREACHABLE was always getting defined as abort even if
__builtin_unreachable support was detected.

configure.ac

diff --git a/configure.ac b/configure.ac
index e1639d5..1e85101 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1095,7 +1095,7 @@
 		foo();
 	}
 ], [je_cv_gcc_builtin_unreachable])
-if test "x${je_cv_gcc_builtin_ffsl}" = "xyes" ; then
+if test "x${je_cv_gcc_builtin_unreachable}" = "xyes" ; then
   AC_DEFINE([JEMALLOC_INTERNAL_UNREACHABLE], [__builtin_unreachable])
 else
   AC_DEFINE([JEMALLOC_INTERNAL_UNREACHABLE], [abort])