bpo-36503: remove references to 'aix3' and 'aix4' (GH-12658)

Lib/test/test_fcntl.py

@@ -34,7 +34,7 @@ def get_lockdata():
                                fcntl.F_WRLCK, 0)
     elif sys.platform.startswith('gnukfreebsd'):
         lockdata = struct.pack('qqihhi', 0, 0, 0, fcntl.F_WRLCK, 0, 0)
-    elif sys.platform in ['aix3', 'aix4', 'hp-uxB', 'unixware7']:
+    elif sys.platform in ['hp-uxB', 'unixware7']:
         lockdata = struct.pack('hhlllii', fcntl.F_WRLCK, 0, 0, 0, 0, 0, 0)
     else:
         lockdata = struct.pack('hh'+start_len+'hh', fcntl.F_WRLCK, 0, 0, 0, 0, 0)

Misc/ACKS

@@ -476,6 +476,7 @@ Jim Fasarakis-Hilliard
 Mark Favas
 Sergey Fedoseev
 Boris Feld
+M. Felt
 Thomas Fenzl
 Niels Ferguson
 Francisco Fernández Castaño

Misc/NEWS.d/next/Build/2019-04-02-09-25-23.bpo-36503.0xzfkQ.rst

+Remove references to "aix3" and "aix4".
+Patch by M. Felt.

setup.py

@@ -1882,9 +1882,6 @@ class PyBuildExt(build_ext):
         libs.append('tk'+ version)
         libs.append('tcl'+ version)
 
-        if HOST_PLATFORM in ['aix3', 'aix4']:
-            libs.append('ld')
-
         # Finally, link with the X11 libraries (not appropriate on cygwin)
         if not CYGWIN:
             libs.append('X11')