regen-makefile: Use '-U 5' to split C++ files in multiple chunks
Particularly the C++ files generated for the rather comprehensive
3GPP asn.1 specified protocols like MAP, RANAP, ... result in very
large source files and subsequently g++ processes that consume well
into the multiple gigabyte range of memory.
Let's use the '-U 5' option to ask the ttcn3_compiler to split all
c++ files into 5 chunks, resulting in more files to compile, but
smaller individual files.
I also tested '-U type' before, but it was still grinding my 16GB RAM
laptop to unusable deep-swapping state when running 'make -j8' for
the IuCS extended MSC test suite.
Change-Id: I013b623e98d58a39dd7bb2b0db4a911725028535
1 file changed