[PATCH] doc: ensure sphinx output is reproducible

[christian.ehrhardt@canonical.com]

From: Christian Ehrhardt <christian.ehrhardt@canonical.com>

By adding -j we build in parallel, to make building on multiprocessor
machines more effective. While that works it does also break
reproducible builds as the order of the sphinx generated searchindex.js
is depending on execution speed of the individual processes.

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
---
 buildtools/call-sphinx-build.py | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/buildtools/call-sphinx-build.py b/buildtools/call-sphinx-build.py
index 39a60d09fa..d8879306de 100755
--- a/buildtools/call-sphinx-build.py
+++ b/buildtools/call-sphinx-build.py
@@ -15,12 +15,7 @@
 # set the version in environment for sphinx to pick up
 os.environ['DPDK_VERSION'] = version
 
-# for sphinx version >= 1.7 add parallelism using "-j auto"
-ver = run([sphinx, '--version'], stdout=PIPE,
-          stderr=STDOUT).stdout.decode().split()[-1]
 sphinx_cmd = [sphinx] + extra_args
-if Version(ver) >= Version('1.7'):
-    sphinx_cmd += ['-j', 'auto']
 
 # find all the files sphinx will process so we can write them as dependencies
 srcfiles = []
-- 
2.41.0