Bug#940194: siconos: /usr/bin/siconos broken due to invalid CMAKE_CXX_COMPILER

[Stephen Sinclair]

Package: siconos
Version: 4.2.0+git20181026.0ee5349+dfsg.2-1 	
Severity: important

Dear Maintainer,

When running the /usr/bin/siconos script, the process fails at the cmake step
due to an invalid CMAKE_CXX_COMPILER and CMAKE_C_COMPILER.  For example, the
autopkgtest numerics-tests fails on ci.debian.net with the error:

    make[2]: /build/siconos-4.2.0+git20181026.0ee5349+dfsg.2/obj-x86_64-linux-
gnu/cc: Command not found

Siconos can be used without this script but it would be helpful to have it
fixed.



-- System Information:
Debian Release: buster/sid
  APT prefers bionic-updates
  APT policy: (500, 'bionic-updates'), (500, 'bionic-security'), (500, 'bionic'), (100, 'bionic-backports')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.15.0-62-generic (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled