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From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: Conditional compilation in Ada?
References: <1100632383.66582@master.nyc.kbcfp.com>
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> The OP is running two separate programs.
I beg to quibble.  If a program acts differently depending on a command
line parameter, is it two different programs?  The parameter is certainly
static during any one run.  If a program (an OS, say) examines its
hardware environment and then uses/ignores certain code depending on
what's there, is it one program or many?  If a program has a Windows
version and a Linux version, is it two different programs?  The
concept of "a single program" is ill-defined.

> There should be a better solution than forcing him to make runtime tests
> for something which is static.
  With a compiler that does dead code elimination there will be no runtime
test if he uses a "constant Boolean := ".