C virtual machine fails on PDF test

[thorkr]

In 'build/ivm/tests/static_pdf' the following command fails with an error message, and no output is produced.

> IVM_EMU=/home/thor/ivm/ivm-implementations/OtherMachines/vm IVM_MAXMEM=1000000000 IVM_OUTDIR=/tmp ./static_pdf
iVM Assembler and VM, v0.37
Opening /home/thor/ivm/ivm-apps/build/ivm/tests/static_pdf/static_pdf...
Opening /home/thor/ivm/ivm-apps/build/ivm/tests/static_pdf/static_pdf...
........
...
Binary written to: /home/thor/ivm/ivm-apps/build/ivm/tests/static_pdf/static_pdf.b
Symbols written to: /home/thor/ivm/ivm-apps/build/ivm/tests/static_pdf/static_pdf.sym
Simulating with IVM_EMU=/home/thor/ivm/ivm-implementations/OtherMachines/vm

Segmentation fault

It also fails with the standard virtual machine, as reported in bug report #6.