gnucash master: Bug 729001: fix more build errors related to partial switch to C++.

[Mike Alexander]

Updated	 via  https://github.com/Gnucash/gnucash/commit/b32f9d2a (commit)
	from  https://github.com/Gnucash/gnucash/commit/72e0b29a (commit)





Summary of changes:
 configure.ac                                       | 13 ++++++++++++-
 src/engine/test/Makefile.am                        |  9 +++++----
 src/engine/test/dummy.cpp                          |  2 ++
 src/engine/test/{utest-Split.c => utest-Split.cpp} |  0
 src/libqof/qof/Makefile.am                         |  5 ++++-
 5 files changed, 23 insertions(+), 6 deletions(-)
 create mode 100644 src/engine/test/dummy.cpp
 rename src/engine/test/{utest-Split.c => utest-Split.cpp} (100%)