Fix TI C2000 support #16803

Job	Run time
Arch / PyPy	20m 2s
Arch Linux	21m 22s
CUDA (on Arch)	7m 55s
Fedora	20m 11s
Ubuntu Rolling (gcc, g++)	20m 21s
Gentoo	22m 30s
Ubuntu Rolling (--unity=on -Ddefault_library=static, --no-unittests, gcc, g++)	14m 46s
OpenSUSE	18m 11s
Ubuntu Rolling (-Ddefault_library=both, --no-unittests, gcc, g++)	15m 8s
Ubuntu Bionic	15m 17s
Ubuntu Rolling (clang, clang++)	22m 17s
Ubuntu Rolling (--unity=on, --no-unittests, clang, clang++)	15m 45s
Ubuntu Rolling (--cross ubuntu-armhf.json --cross linux-mingw-w64-64bit.json, 0, gcc, g++)	13m 56s
Ubuntu Rolling (--cross ubuntu-armhf.json --cross linux-mingw-w64-64bit.json, --unity=on, gcc, g++)	13m 29s
	4h 1m 10s

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