Public bug reported:

When running freehdl-v2cc[1] on Bionic[2] it crashes with segmentation
fault:

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7b7c078 in 
m_vaul_compute_static_level(IIR_ConstantInterfaceDeclaration*) () from 
/usr/lib/libfreehdl-vaul.so.0

Before that it complains about improper memory access:
__GI__IO_file_open (is32not64=1, read_write=8, prot=438, posix_mode=<optimized 
out>, 
    filename=0x8 <error: Cannot access memory at address 0x8>, 
fp=0x5555558629f0) at fileops.c:190


It looks like this:

$gvhdl test.vhd 
gvhdl: FreeHDL root path is '/usr'.
gvhdl: executing '/usr/bin/freehdl-v2cc -m test._main_.cc -L 
/usr/share/freehdl/lib   -o test.cc test.vhd'
gvhdl: Compilation failed!
Died at /usr/bin/gvhdl line 211.

[1] freehdl:
  Installed: 0.0.8-2.2ubuntu2
libfreehdl0:
  Installed: 0.0.8-2.2ubuntu2
libfreehdl0-dev:
  Installed: 0.0.8-2.2ubuntu2


[2] $lsb_release -rd
Description:    Ubuntu 18.04 LTS
Release:        18.04

** Affects: freehdl (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1781054

Title:
  freehdl's /usr/bin/freehdl-v2cc crashes with sigsegv

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