bpo-41374: Remove obsolete exclusion of netinet/tcp.h on Cygwin (GH-21649)

diff --git a/Misc/NEWS.d/next/Library/2020-07-27-19-21-05.bpo-41374.cd-kFL.rst b/Misc/NEWS.d/next/Library/2020-07-27-19-21-05.bpo-41374.cd-kFL.rst
new file mode 100644 (file)
index 0000000..a5b2e04
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2020-07-27-19-21-05.bpo-41374.cd-kFL.rst
@@ -0,0 +1,2 @@
+Ensure that ``socket.TCP_*`` constants are exposed on Cygwin 3.1.6 and
+greater.

diff --git a/Modules/socketmodule.h b/Modules/socketmodule.h
index e4f375d5e8100a13f70ee74decd7854f094889b4..aea599f0ee6c857126bb3d48fa6f8c687a8822e4 100644 (file)
--- a/Modules/socketmodule.h
+++ b/Modules/socketmodule.h
@@ -8,9 +8,7 @@
 #   include <sys/socket.h>
 # endif
 # include <netinet/in.h>
-# if !defined(__CYGWIN__)
-#  include <netinet/tcp.h>
-# endif
+# include <netinet/tcp.h>
 
 #else /* MS_WINDOWS */
 # include <winsock2.h>