Hi everybody,

I'm trying to make an application that need to be FHS compliant. For that I want be abble to pass some strings as compile time parameters (eg. the famous $PREFIX). I tryed this :

// installation paths defines
{$if undefined(PREFIX)}
	{$DEFINE PREFIX:='/usr/local'}
{$endif}
{$if undefined(BINDIR)}
	{$DEFINE BINDIR:=(PREFIX) + '/bin'}
{$endif}
{$if undefined(SYSCONFDIR)}
	{$DEFINE SYSCONFDIR:=(PREFIX) + '/etc'}
{$endif}
{$if undefined(LOCALSTATEDIR)}
	{$DEFINE LOCALSTATEDIR=(PREFIX) + '/var'}
{$endif}

But I havec those errors :
defines.inc(68,5) Error: Compile time expression: Wanted BOOLEAN but got STRING at IF or ELSEIF
defines.inc(71,5) Error: Compile time expression: Wanted BOOLEAN but got STRING at IF or ELSEIF
defines.inc(74,5) Error: Compile time expression: Wanted BOOLEAN but got STRING at IF or ELSEIF
defines.inc(77,5) Error: Compile time expression: Wanted BOOLEAN but got STRING at IF or ELSEIF

The fact is that I have no idea on how to create and use that kind of defines and I didn't find something about.

Thank you for any help !

Turn macros on
http://www.freepascal.org/docs-html/prog/progse4.html

Stephano

patspiper wrote

Turn macros on http://www.freepascal.org/docs-html/prog/progse4.html

and use not defined instead of undefined

Stephano