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waf/demos/variants/wscript
Thomas Nagy 43460d95e8 docs
2011-10-16 07:36:38 +02:00

86 lines
2.5 KiB
Python

#! /usr/bin/env python
# encoding: utf-8
# Thomas Nagy, 2010 (ita)
VERSION='0.0.1'
APPNAME='cc_test'
top = '.'
out = 'build'
"""
Variant system for waf 1.6
call for example
$ waf configure build_debug build_release clean_debug clean_release
"""
def options(opt):
opt.load('compiler_c')
def configure(conf):
conf.setenv('debug')
conf.load('compiler_c')
conf.define("A", 1)
conf.define("B", 1.1)
conf.define("C", "1.1e19", quote=False)
# the configuration file must be written in each variant
conf.write_config_header('debug/config.h', remove=False)
conf.setenv('release', env=conf.env.derive()) # start with a copy instead of a new env
conf.env.CFLAGS = ['-O2']
conf.options.prefix = '/opt' # warning: this changes the options globally
conf.load('compiler_c')
conf.define('E', 1)
conf.write_config_header('release/config.h')
def build(bld):
# cleaning from the top-level directory might remove
# the file 'config.h' from the variants, so we
# are forcing the use of *debug or *release commands
#
# the config set 'debug' is loaded automatically when the 'debug' variant is used
if not bld.variant:
bld.fatal('Call "waf build_debug" or "waf build_release", and look in the comments of the wscript file!')
# the includes='.' add the build directory path to the command arguments
# (look at the -I flags by using waf -v)
bld.program(source='main.c', target='app', includes='.')
# To use multiple compilers at once, either:
#
# * use a particular environment from the configuration:
# bld.env = bld.all_envs['debug']
# bld.program(source='main.c', target='app2', includes='.')
# * add an 'env' parameter to a particular task generator:
# bld.program(..., env=bld.all_envs['release'].derive())
# ------ new declaration for variants -------
#
# calling 'waf clean_debug debug' will build into another output directory
# note how "bld.variant" is used to detect the current variant
#
def init(ctx):
from waflib.Build import BuildContext, CleanContext, InstallContext, UninstallContext
for x in 'debug release'.split():
for y in (BuildContext, CleanContext, InstallContext, UninstallContext):
name = y.__name__.replace('Context','').lower()
class tmp(y):
cmd = name + '_' + x
variant = x
def buildall(ctx):
import waflib.Options
for x in ['build_debug', 'build_release']:
waflib.Options.commands.insert(0, x)
## if you work on "debug" 99% of the time, here is how to re-enable "waf build":
#for y in (BuildContext, CleanContext, InstallContext, UninstallContext):
# class tmp(y):
# variant = 'debug'