Need to specify tcl version explicitly now in Ubuntu Precise.

Affects docs and setupenv

vagrant@precise64:~/idic$ sudo make setupenv
Environment already setup.
Ign http://us.archive.ubuntu.com precise InRelease
Hit http://security.ubuntu.com precise-security InRelease
Hit http://us.archive.ubuntu.com precise-updates InRelease
Hit http://us.archive.ubuntu.com precise-backports InRelease
Hit http://us.archive.ubuntu.com precise Release.gpg
Hit http://security.ubuntu.com precise-security/main Sources
Hit http://us.archive.ubuntu.com precise-updates/main Sources
Hit http://security.ubuntu.com precise-security/restricted Sources
Hit http://us.archive.ubuntu.com precise-updates/restricted Sources
Hit http://security.ubuntu.com precise-security/universe Sources
Hit http://us.archive.ubuntu.com precise-updates/universe Sources
Hit http://security.ubuntu.com precise-security/multiverse Sources
Hit http://us.archive.ubuntu.com precise-updates/multiverse Sources
Hit http://security.ubuntu.com precise-security/main amd64 Packages
Hit http://us.archive.ubuntu.com precise-updates/main amd64 Packages
Hit http://us.archive.ubuntu.com precise-updates/restricted amd64 Packages
Hit http://security.ubuntu.com precise-security/restricted amd64 Packages
Hit http://us.archive.ubuntu.com precise-updates/universe amd64 Packages
Hit http://security.ubuntu.com precise-security/universe amd64 Packages
Hit http://us.archive.ubuntu.com precise-updates/multiverse amd64 Packages
Hit http://security.ubuntu.com precise-security/multiverse amd64 Packages
Hit http://us.archive.ubuntu.com precise-updates/main i386 Packages
Hit http://security.ubuntu.com precise-security/main i386 Packages
Hit http://us.archive.ubuntu.com precise-updates/restricted i386 Packages
Hit http://security.ubuntu.com precise-security/restricted i386 Packages
Hit http://us.archive.ubuntu.com precise-updates/universe i386 Packages
Hit http://us.archive.ubuntu.com precise-updates/multiverse i386 Packages
Hit http://security.ubuntu.com precise-security/universe i386 Packages
Hit http://security.ubuntu.com precise-security/multiverse i386 Packages
Hit http://security.ubuntu.com precise-security/main TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/multiverse TranslationIndex
Hit http://security.ubuntu.com precise-security/multiverse TranslationIndex
Hit http://security.ubuntu.com precise-security/restricted TranslationIndex
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/universe TranslationIndex
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://us.archive.ubuntu.com precise-backports/main Sources
Hit http://security.ubuntu.com precise-security/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-backports/restricted Sources
Hit http://security.ubuntu.com precise-security/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-backports/universe Sources
Hit http://us.archive.ubuntu.com precise-backports/multiverse Sources
Hit http://security.ubuntu.com precise-security/universe Translation-en
Hit http://us.archive.ubuntu.com precise-backports/main amd64 Packages
Hit http://us.archive.ubuntu.com precise-backports/restricted amd64 Packages
Hit http://us.archive.ubuntu.com precise-backports/universe amd64 Packages
Hit http://us.archive.ubuntu.com precise-backports/multiverse amd64 Packages
Hit http://us.archive.ubuntu.com precise-backports/main i386 Packages
Hit http://us.archive.ubuntu.com precise-backports/restricted i386 Packages
Hit http://us.archive.ubuntu.com precise-backports/universe i386 Packages
Hit http://us.archive.ubuntu.com precise-backports/multiverse i386 Packages
Hit http://us.archive.ubuntu.com precise-backports/main TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/universe TranslationIndex
Hit http://us.archive.ubuntu.com precise Release
Hit http://us.archive.ubuntu.com precise-updates/main Translation-en
Hit http://us.archive.ubuntu.com precise-updates/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-updates/universe Translation-en
Hit http://us.archive.ubuntu.com precise-backports/main Translation-en
Hit http://us.archive.ubuntu.com precise-backports/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-backports/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-backports/universe Translation-en
Hit http://us.archive.ubuntu.com precise/main Sources
Hit http://us.archive.ubuntu.com precise/restricted Sources
Hit http://us.archive.ubuntu.com precise/universe Sources
Hit http://us.archive.ubuntu.com precise/multiverse Sources
Hit http://us.archive.ubuntu.com precise/main amd64 Packages
Hit http://us.archive.ubuntu.com precise/restricted amd64 Packages
Hit http://us.archive.ubuntu.com precise/universe amd64 Packages
Hit http://us.archive.ubuntu.com precise/multiverse amd64 Packages
Hit http://us.archive.ubuntu.com precise/main i386 Packages
Hit http://us.archive.ubuntu.com precise/restricted i386 Packages
Hit http://us.archive.ubuntu.com precise/universe i386 Packages
Hit http://us.archive.ubuntu.com precise/multiverse i386 Packages
Hit http://us.archive.ubuntu.com precise/main TranslationIndex
Hit http://us.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com precise/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise/universe TranslationIndex
Hit http://us.archive.ubuntu.com precise/main Translation-en
Hit http://us.archive.ubuntu.com precise/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise/restricted Translation-en
Hit http://us.archive.ubuntu.com precise/universe Translation-en
Reading package lists...
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'genisoimage' instead of 'mkisofs'
Package tclsh is a virtual package provided by:
  tcl8.5 8.5.11-1ubuntu1
  tcl8.4 8.4.19-4ubuntu3
You should explicitly select one to install.

E: Package 'tclsh' has no installation candidate
vagrant@precise64:~/idic$