The solution that fully meets my needs would be SHC – a free tool, or CCsh a commercial tool. Both compile shell scripts to C, which then can be compiled using a C compiler.
Links about SHC:
- https://github.com/neurobin/shc
- http://www.datsi.fi.upm.es/~frosal/
- http://www.downloadplex.com/Linux/System-Utilities/Shell-Tools/Download-shc_70414.html
Links about CCsh:
- http://www.comeaucomputing.com/faqs/ccshlit.html