BUILDFLAGS.CONF(1)

NAME
buildflags.conf - set build options for ports, world and everything

SYNOPSIS
buildflags.conf

DESCRIPTION
The buildflags.conf file is used by buildflags.mk(1) to configure make jobs.

The intended way to use it is to add the following lines to the file '/etc/make.conf'.

    BUILDFLAGS=     /usr/local/share/bsdadminscripts/buildflags.mk
    .if exists(${BUILDFLAGS})
    .include "${BUILDFLAGS}"
    .endif

SYNTAX
A buildflags.conf file gets parsed into a make file. If you want to make sure that your syntax is right you can do so by running:

/usr/local/share/bsdadminscripts/buildflags.awk buildflags.conf | less

The buildflags.conf syntax only knows four kinds of data:

    comments, locations, knobs and variables

  COMMENTS
Comments are everything behind a '#'. The only exception is a '#' within a '"' block.

    # This is a comment.

  LOCATIONS
A location is a folder in which a make job runs. Locations make it possible to limit assignments only to certain ports or other build systems.

A location consists of a path and/or a pattern. The difference between a path and a pattern is that the pattern will remain untouched and a path will be resolved as far as possible. Resolving a path means that a path will be substituted with its physical path.

Several locations can be connected with '&' (logical and) and '|' (logical or).

If i.e. '/usr/ports' is a link to '/mnt/vault/ports' a location like '/usr/ports/x11*' will be resolved into '/mnt/vault/ports/x11*'. In this case '/usr/ports' is the path and '/x11*' the pattern.

Every location is followed by a block that can contain comments, knobs, variables and other locations. A block is opened with the character '{' and closed with '}'. Here is an example:

    /usr/ports/* & !*/work/*{
    	WITH_IPV6
    	*/x11/toolkits-gtk20	{WITHOUT_DEBUG}
    }

  KNOBS
A knob really is a variable with a default assignment:

    WITH_DEBUG
    !CPUTYPE

This example would set 'WITH_DEBUG=yes' and undefine 'CPUTYPE'. You can have several knobs in a single line:

    WITH_DEBUG !CPUTYPE

  VARIABLES
Assigning variables is simply done with an '=' other ways of assignment known from make(1) like '?=', ':=' or '!=' can also be used. There may not be spaces in front of a '='.

If the '=' is followed by spaces. The whole trailing line will be assigned as the value, unless the first character is a '"'. Values may not contain a '"'. If the value is right behind the '=' only one word will be assigned, the next word will be treated as a knob or variable.

Here are some examples of valid assignments:

    CPUTYPE?="pentium-m" CFLAGS="-O2 -pipe" THREADS=5
    SUPFLAGS=	-E -g -L 2 -z

COMPATIBILITY
The script has been tested on FreeBSD 6.1.

SEE ALSO
buildflags.awk(1), buildflags.mk(1), bsdadminscripts(1), make(1)

FILES

/usr/local/etc/buildflags.conf
    Default location of the buildflags.conf.

/usr/local/share/bsdadminscripts/buildflags.conf
    An example configuration file.

HISTORY
The buildflags.conf file first appeared in the bsdadminscripts-2.0 collection.

AUTHOR
Dominic Fandrey <lon_kamikaze@gmx.de>