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import os, shutil
import re
from .project import Project
# This class installs just the public headers and a fake pkg-config
# file which defines the macro "DYNAMIC_JACK". This tells MPD's JACK
# output plugin to load the libjack64.dll dynamically using
# LoadLibrary(). This kludge avoids the runtime DLL dependency for
# users who don't use JACK, but still allows using the system JACK
# client library.
#
# The problem with JACK is that it uses an extremely fragile shared
# memory protocol to communicate with the daemon. One needs to use
# daemon and client library from the same build. That's why we don't
# build libjack statically here; it would probably not be compatible
# with the user's JACK daemon.
class JackProject(Project):
def __init__(self, url, md5, installed,
**kwargs):
m = re.match(r'.*/v([\d.]+)\.tar\.gz$', url)
self.version = m.group(1)
Project.__init__(self, url, md5, installed,
name='jack2', version=self.version,
base='jack2-' + self.version,
**kwargs)
def build(self, toolchain):
src = self.unpack(toolchain)
includes = ['jack.h', 'ringbuffer.h', 'systemdeps.h', 'transport.h', 'types.h', 'weakmacros.h']
includedir = os.path.join(toolchain.install_prefix, 'include', 'jack')
os.makedirs(includedir, exist_ok=True)
for i in includes:
shutil.copyfile(os.path.join(src, 'common', 'jack', i),
os.path.join(includedir, i))
with open(os.path.join(toolchain.install_prefix, 'lib', 'pkgconfig', 'jack.pc'), 'w') as f:
print("prefix=" + toolchain.install_prefix, file=f)
print("", file=f)
print("Name: jack", file=f)
print("Description: dummy", file=f)
print("Version: " + self.version, file=f)
print("Libs: ", file=f)
print("Cflags: -DDYNAMIC_JACK", file=f)
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