| diff --git a/rpython/rtyper/lltypesystem/ll2ctypes.py b/rpython/rtyper/lltypesystem/ll2ctypes.py |
| index 33853fc..5cf48c1 100644 |
| --- a/rpython/rtyper/lltypesystem/ll2ctypes.py |
| +++ b/rpython/rtyper/lltypesystem/ll2ctypes.py |
| @@ -1181,7 +1181,7 @@ if sys.platform == 'darwin': |
| expr = r'[^\(\)\s]*lib%s\.[^\(\)\s]*' % re.escape(name) |
| fdout, ccout = tempfile.mkstemp() |
| os.close(fdout) |
| - cmd = 'if type gcc >/dev/null 2>&1; then CC=gcc; else CC=cc; fi;' \ |
| + cmd = 'if type gcc >/dev/null 2>&1; then : ${CC:=gcc}; else : ${CC:=cc}; fi;' \ |
| '$CC -Wl,-t -o ' + ccout + ' 2>&1 -l' + name |
| try: |
| f = os.popen(cmd) |