Restrict odk/examples to non-parallel make

At least odk/examples/DevelopersGuide/Spreadsheet/Makefile contains two
independent invocations of unopkg (i.e., $(DEPLOYTOOL)) and
CustomTarget_odk/build-examples_java had once failed for me with

> "~/lo/core/instdir/program/unopkg" add -f "~/lo/core/workdir/CustomTarget/odk/build-examples_java/out/sdk/LINUXexample.out/bin/ExampleDataPilotSource.oxt"
> ERROR: unopkg cannot be started. The lock file indicates it is already running. If this does not apply, delete the lock file at:
> ~/lo/core/workdir/CustomTarget/odk/build-examples_java/user/.lock ~/lo/core/desktop/source/pkgchk/unopkg/unopkg_shared.h:44
> make[2]: *** [Makefile:227: ~/lo/core/workdir/CustomTarget/odk/build-examples_java/out/sdk/LINUXexample.out/misc/DevGuideSpreadsheetExamples/devguide_ExampleDataPilotSource_register_component.flag] Error 1

So make sure the `make` invoked from those CustomTarget_odk/build_exmaple* does
not inherit any -j flag from the outer `make`.  (I had observed this with an
explicit `make -j4` and --without-parallelism, but this should also be an issue
for the implicit parallelism from the default --with-parallelism.)

Change-Id: Iff368dbbcad01d3841d63c2985639ba6a3dec1f5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/103504
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

0 files changed, 0 insertions, 0 deletions