+++ This bug was initially created as a clone of Bug #1596188 +++

Description of problem:

With some toolchains (latest buildroot for example) the rpcgen rejects to process the rpc/xdr/src/changelog-xdr.x file, because it contains "unsigned long" integer declarations. Looking at the standard, long is not supported in XDR: https://tools.ietf.org/html/rfc4506#section-4.2


Version-Release number of selected component (if applicable):


How reproducible:
Compile gluster with buildroot 2018.05.

Actual results:

------------------------------------
Making all in rpc/xdr/gen
       unsigned long seq;
^^^^^^^^^^^^^^^^^^^^^^^^
changelog-xdr.x, line 30: expected ';'
Makefile:562: recipe for target 'changelog-xdr.h' failed
make[5]: *** [changelog-xdr.h] Error 1
------------------------------------

Expected results:

Compilation without error.

Additional info:

fix attached