Description: Don't detect s390x subarchitectures
 Debian only targets the base
Author: Stefano Rivera <stefanor@debian.org>
Bug-Debian: https://bugs.debian.org/823916

--- a/rpython/translator/platform/arch/s390x.py
+++ b/rpython/translator/platform/arch/s390x.py
@@ -68,19 +68,4 @@
 
 def update_cflags(cflags):
     """ NOT_RPYTHON """
-    # force the right target arch for s390x
-    for cflag in cflags:
-        if cflag.startswith('-march='):
-            break
-    else:
-        # the default cpu architecture that is supported
-        # older versions are not supported
-        revision = s390x_cpu_revision()
-        if revision == 'z13':
-            # gcc does not recognize z13 as a compiler flag!
-            revision = 'zEC12'
-
-        assert revision != 'unknown'
-        cflags += ('-march='+revision,)
-    cflags += ('-m64','-mzarch')
     return cflags
