mpd/python/build/cmake.py
Max Kellermann 1802cf9fd1 python/build/cmake.py: add CMAKE_FIND_ROOT_PATH on Windows
Works around CURL build failure because cmake insists on using
/usr/include/zlib.h.
2023-12-20 13:24:53 +01:00

131 lines
4.8 KiB
Python

import os
import re
import subprocess
from typing import cast, Optional, Sequence, TextIO, Union
from collections.abc import Mapping
from build.project import Project
from .toolchain import AnyToolchain
def __write_cmake_compiler(f: TextIO, language: str, compiler: str) -> None:
s = compiler.split(' ', 1)
if len(s) == 2:
print(f'set(CMAKE_{language}_COMPILER_LAUNCHER {s[0]})', file=f)
compiler = s[1]
print(f'set(CMAKE_{language}_COMPILER {compiler})', file=f)
def __write_cmake_toolchain_file(f: TextIO, toolchain: AnyToolchain) -> None:
if toolchain.is_darwin:
cmake_system_name = 'Darwin'
elif toolchain.is_windows:
cmake_system_name = 'Windows'
else:
cmake_system_name = 'Linux'
f.write(f"""
set(CMAKE_SYSTEM_NAME {cmake_system_name})
set(CMAKE_SYSTEM_PROCESSOR {toolchain.host_triplet.split('-', 1)[0]})
set(CMAKE_C_COMPILER_TARGET {toolchain.host_triplet})
set(CMAKE_CXX_COMPILER_TARGET {toolchain.host_triplet})
set(CMAKE_C_FLAGS_INIT "{toolchain.cflags} {toolchain.cppflags}")
set(CMAKE_CXX_FLAGS_INIT "{toolchain.cxxflags} {toolchain.cppflags}")
""")
__write_cmake_compiler(f, 'C', toolchain.cc)
__write_cmake_compiler(f, 'CXX', toolchain.cxx)
if cmake_system_name == 'Darwin':
# On macOS, cmake forcibly adds an "-isysroot" flag even if
# one is already present in the flags variable; this breaks
# cross-compiling for iOS, and can be worked around by setting
# the CMAKE_OSX_SYSROOT variable
# (https://cmake.org/cmake/help/latest/variable/CMAKE_OSX_SYSROOT.html).
m = re.search(r'-isysroot +(\S+)', toolchain.cflags)
if m:
sysroot = m.group(1)
print(f'set(CMAKE_OSX_SYSROOT {sysroot})', file=f)
# search libraries and headers only in the sysroot, not on
# the build host
f.write(f"""
set(CMAKE_FIND_ROOT_PATH "{toolchain.install_prefix};{sysroot}")
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
""")
elif cmake_system_name == 'Windows':
# search libraries and headers only in the sysroot, not on
# the build host
f.write(f"""
set(CMAKE_FIND_ROOT_PATH "{toolchain.install_prefix}")
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
""")
def configure(toolchain: AnyToolchain, src: str, build: str, args: list[str]=[], env: Optional[Mapping[str, str]]=None) -> None:
cross_args: list[str] = []
if toolchain.is_windows:
cross_args.append('-DCMAKE_RC_COMPILER=' + cast(str, toolchain.windres))
configure = [
'cmake',
src,
'-DCMAKE_INSTALL_PREFIX=' + toolchain.install_prefix,
'-DCMAKE_BUILD_TYPE=release',
'-GNinja',
] + cross_args + args
if toolchain.host_triplet is not None:
# cross-compiling: write a toolchain file
os.makedirs(build, exist_ok=True)
# Several targets need a sysroot to prevent pkg-config from
# looking for libraries on the build host (TODO: fix this
# properly); but we must not do that on Android because the NDK
# has a sysroot already
if not toolchain.is_android and not toolchain.is_darwin:
cross_args.append('-DCMAKE_SYSROOT=' + toolchain.install_prefix)
cmake_toolchain_file = os.path.join(build, 'cmake_toolchain_file')
with open(cmake_toolchain_file, 'w') as f:
__write_cmake_toolchain_file(f, toolchain)
configure.append('-DCMAKE_TOOLCHAIN_FILE=' + cmake_toolchain_file)
if env is None:
env = toolchain.env
else:
env = {**toolchain.env, **env}
print(configure)
subprocess.check_call(configure, env=env, cwd=build)
class CmakeProject(Project):
def __init__(self, url: Union[str, Sequence[str]], md5: str, installed: str,
configure_args: list[str]=[],
windows_configure_args: list[str]=[],
env: Optional[Mapping[str, str]]=None,
**kwargs):
Project.__init__(self, url, md5, installed, **kwargs)
self.configure_args = configure_args
self.windows_configure_args = windows_configure_args
self.env = env
def configure(self, toolchain: AnyToolchain) -> str:
src = self.unpack(toolchain)
build = self.make_build_path(toolchain)
configure_args = self.configure_args
if toolchain.is_windows:
configure_args = configure_args + self.windows_configure_args
configure(toolchain, src, build, configure_args, self.env)
return build
def _build(self, toolchain: AnyToolchain) -> None:
build = self.configure(toolchain)
subprocess.check_call(['ninja', '-v', 'install'],
cwd=build, env=toolchain.env)