| line | !l | l&&!r | l&&r | condition | 
 
| 28 | 0 | 0 | 1 | $ILCPPConfig::OldCompilerGuess::Config{'osname'} ne 'darwin' and $ILCPPConfig::OldCompilerGuess::Config{'gccversion'} | 
 
|  | 0 | 1 | 0 | $ILCPPConfig::OldCompilerGuess::Config{'osname'} ne 'darwin' and $ILCPPConfig::OldCompilerGuess::Config{'gccversion'} and $ILCPPConfig::OldCompilerGuess::Config{'cc'} =~ m[\bgcc\b[^/]*$] | 
 
|  | 0 | 0 | 0 | $ILCPPConfig::OldCompilerGuess::Config{'osname'} eq 'freebsd' and $ILCPPConfig::OldCompilerGuess::Config{'osvers'} =~ /^(\d+)/ | 
 
|  | 0 | 0 | 0 | $ILCPPConfig::OldCompilerGuess::Config{'osname'} eq 'freebsd' and $ILCPPConfig::OldCompilerGuess::Config{'osvers'} =~ /^(\d+)/ and $1 >= 10 | 
 
| 61 | 0 | 0 | 0 | exists $ILCPPConfig::OldCompilerGuess::Config{'gccversion'} and $ILCPPConfig::OldCompilerGuess::Config{'gccversion'} > 0 | 
 
| 95 | 0 | 1 | 0 | $cc_guess eq 'g++' and $ILCPPConfig::OldCompilerGuess::Config{'cc'} eq 'clang' |