Somehow optimizations of lzma_lzma_optimum_normal by the IBM XL C
compiler cause it to crash. Simply disable optimizations of this source
file with a pragma.
Any "#define restrict ..." line may conflict with MSVC header files
that use "__declspec(restrict)". Define our own LZMA_RESTRICT macro
in "Utilities/cmliblzma/config.h.in" and transform liblzma code to
use it:
git grep -lE '\<restrict\>' Utilities/cmliblzma/liblzma |
xargs sed -i 's/\<restrict\>/LZMA_RESTRICT/g'