debug = x overrides command line

[Walter Bright via Digitalmars-d]

On 10/22/2014 1:04 PM, Jonathan M Davis wrote:
> Yeah, being able to just enable the debug blocks from within the code like
> that seems questionable to me and has nothing to do with debug blocks
> disabling pure functions. It just makes for a nastier side effect when debug
> blocks are enabled within the code rather than via the command-line.

Lots of people (like me, though I'm often told I'm a unique snowflake and nobody 
programs like me) debug code by editting the source code to enable/disable debug 
code rather than messing with the makefile.

Take a look at about any source file in dmd, for example, with the commented out 
printf's, and template.c, with the file scope #define LOG 0.

D needs to support this style of debugging, and the 'debug' conditional with how 
it is set is just the ticket. The feature works as designed and intended.