OSX Sierra test fail, with master.

[Michael Stahl]

On 19.10.2016 08:02, Jan Iversen wrote:
>  4.
>     cppunittester(39743,0x7fffb04373c0) malloc: *** error for object
>     0x7fd8ab0af400: incorrect checksum for freed object - object was
>     probably modified after being freed.
> 
> 
> It seems to me we have a memory fault, in graphic helper, or am I
> completely wrong ?

yes... does "valgrind" exist for macOS?  valgrind.org says "AMD64/Darwin
(Mac OS X 10.10, with initial support for 10.11)" - would be interesting
to know if it works with the usual "make  CppunitTest_... VALGRIND=memcheck"