[PATCH] fix building for s390 systems

[Mike Frysinger]

Checking for __s390x__ means you work on s390x, but not s390 (32bit)
systems.  So use __s390__ which works for both.

With this, `make check` passes on s390.

Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
 include/jemalloc/internal/jemalloc_internal.h.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/jemalloc/internal/jemalloc_internal.h.in b/include/jemalloc/internal/jemalloc_internal.h.in
index c606c12..74a8bd5 100644
--- a/include/jemalloc/internal/jemalloc_internal.h.in
+++ b/include/jemalloc/internal/jemalloc_internal.h.in
@@ -287,7 +287,7 @@ static const bool config_ivsalloc =
 #  ifdef __powerpc__
 #    define LG_QUANTUM		4
 #  endif
-#  ifdef __s390x__
+#  ifdef __s390__
 #    define LG_QUANTUM		4
 #  endif
 #  ifdef __SH4__
-- 
1.8.0.2