375 строки
12 KiB
Python
375 строки
12 KiB
Python
# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
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# vim: set filetype=python:
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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@template
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def noset_check_header(
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header, language="C++", flags=None, includes=None, when=None, onerror=lambda: None
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):
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if when is None:
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when = always
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if includes:
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includes = includes[:]
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else:
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includes = []
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includes.append(header)
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return try_compile(
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includes=includes,
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language=language,
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flags=flags,
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check_msg="for %s" % header,
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when=when,
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onerror=onerror,
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)
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@template
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def check_symbol_exists(
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symbol,
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header,
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language="C",
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flags=None,
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includes=None,
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when=None,
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onerror=lambda: None,
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):
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if when is None:
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when = always
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if includes:
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includes = includes[:]
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else:
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includes = []
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includes.append("stdio.h")
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if isinstance(header, str):
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header = [header]
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includes.extend(header)
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body = """#ifndef %s
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(void) %s;
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#endif
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""" % (
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symbol,
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symbol,
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)
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return try_compile(
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includes,
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body,
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language=language,
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flags=flags,
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check_msg="for %s" % symbol,
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when=when,
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onerror=onerror,
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)
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with only_when("--enable-compile-environment"):
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option(
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"--with-system-librnp",
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help="Use system RNP (librnp) for OpenPGP support.",
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)
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@depends("--with-system-librnp")
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def in_tree_librnp(system_librnp):
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if system_librnp:
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log.info("System librnp will be used at runtime.")
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return False
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return True
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set_config("MZLA_LIBRNP", depends_if(in_tree_librnp)(lambda _: True))
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set_define("MZLA_LIBRNP", depends_if(in_tree_librnp)(lambda _: True))
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with only_when(in_tree_librnp):
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# JSON-C --with-system-json
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system_lib_option(
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"--with-system-jsonc",
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help="Use system JSON-C for librnp (located with pkgconfig)",
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)
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jsonc_pkg = pkg_check_modules("MZLA_JSONC", "json-c >= 0.11", when="--with-system-jsonc")
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set_config("MZLA_SYSTEM_JSONC", depends_if(jsonc_pkg)(lambda _: True))
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@depends("--with-system-jsonc")
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def in_tree_jsonc(system_jsonc):
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if not system_jsonc:
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return True
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# Bzip2 --with-system-bz2
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system_lib_option(
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"--with-system-bz2",
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nargs="?",
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help="Use system Bzip2 for librnp (pkgconfig/given prefix)",
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)
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set_config("MZLA_SYSTEM_BZIP2", True, when="--with-system-bz2")
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# Bzip2 does not include a pkgconfig file, but some Linux distributions add one
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bzip2_pkg = pkg_check_modules(
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"MZLA_BZIP2",
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"bzip2 >= 1.0.6",
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when="--with-system-bz2",
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allow_missing=True,
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config=False,
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)
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@depends_if("--with-system-bz2", bzip2_pkg)
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def bzip2_flags(value, bzip2_pkg):
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if len(value):
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# A path (eg. /usr/local was given)
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return namespace(
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cflags=("-I%s/include" % value[0],),
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ldflags=("-L%s/lib" % value[0], "-lbz2"),
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)
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if bzip2_pkg:
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cflags = list(bzip2_pkg.cflags)
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libs = bzip2_pkg.libs
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return namespace(
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cflags=cflags,
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ldflags=libs,
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)
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# Fallback
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return namespace(
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ldflags=["-lbz2"],
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)
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with only_when("--with-system-bz2"):
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check_symbol(
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"BZ2_bzread",
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flags=bzip2_flags.ldflags,
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onerror=lambda: die("--with-system-bz2 requested but symbol " "BZ2_bzread not found."),
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)
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c_compiler.try_compile(
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includes=[
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"stdio.h",
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"sys/types.h",
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"bzlib.h",
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],
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body="""
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#ifndef _BZLIB_H
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#error _BZLIB_H bzlib.h not found
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#endif
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""",
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flags=bzip2_flags.cflags,
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check_msg="for bzlib.h",
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onerror=lambda: die("bzlib.h header not found"),
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)
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set_config("MZLA_BZIP2_CFLAGS", bzip2_flags.cflags)
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set_config("MZLA_BZIP2_LIBS", bzip2_flags.ldflags)
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# librnp crypto backend selection
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@depends(target_has_linux_kernel)
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def librnp_backend_choices(is_linux):
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if is_linux:
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return ("botan", "openssl")
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else:
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return ("botan",)
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option(
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"--with-librnp-backend",
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help="Build librnp with the selected backend",
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choices=librnp_backend_choices,
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nargs=1,
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default="botan",
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)
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@depends("--with-librnp-backend")
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def librnp_backend(backend):
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if backend:
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return backend[0]
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set_config("MZLA_LIBRNP_BACKEND", librnp_backend)
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@depends(librnp_backend)
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def rnp_botan(backend):
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return backend == "botan"
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@depends(librnp_backend)
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def rnp_openssl(backend):
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return backend == "openssl"
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# Botan backend (--with-system-botan)
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with only_when(rnp_botan):
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system_lib_option(
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"--with-system-botan",
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help="Use system Botan for librnp (located with pkgconfig)",
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)
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botan_pkg = pkg_check_modules("MZLA_BOTAN", "botan-2 >= 2.8.0", when="--with-system-botan")
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set_config("MZLA_SYSTEM_BOTAN", depends_if(botan_pkg)(lambda _: True))
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# OpenSSL backend
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with only_when(rnp_openssl):
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option(
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"--with-openssl",
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nargs=1,
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help="OpenSSL library prefix (when not found by pkgconfig)",
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)
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openssl_pkg = pkg_check_modules(
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"MZLA_LIBRNP_OPENSSL", "openssl >= 1.1.1e", allow_missing=True, config=False
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)
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@depends_if("--with-openssl", openssl_pkg)
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@imports(_from="os.path", _import="isdir")
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@imports(_from="os.path", _import="join")
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def openssl_flags(openssl_prefix, openssl_pkg):
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if openssl_prefix:
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openssl_prefix = openssl_prefix[0]
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include = join(openssl_prefix, "include")
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lib = join(openssl_prefix, "lib")
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if not isdir(lib):
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lib = join(openssl_prefix, "lib64")
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if isdir(include) and isdir(lib):
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log.info(f"Using OpenSSL at {openssl_prefix}.")
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return namespace(
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cflags=(f"-I{include}",),
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ldflags=(f"-L{lib}", "-lssl", "-lcrypto"),
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)
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if openssl_pkg:
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return namespace(
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cflags=openssl_pkg.cflags,
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ldflags=openssl_pkg.libs,
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)
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set_config("MZLA_LIBRNP_OPENSSL_CFLAGS", openssl_flags.cflags)
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set_config("MZLA_LIBRNP_OPENSSL_LIBS", openssl_flags.ldflags)
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@depends(configure_cache, c_compiler, openssl_flags)
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@imports(_from="textwrap", _import="dedent")
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@imports(_from="__builtin__", _import="chr")
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def openssl_version(configure_cache, compiler, openssl_flags):
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log.info("Checking for OpenSSL >= 1.1.1e")
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if openssl_flags is None:
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die("OpenSSL not found. Must be locatable with pkg-config or use --with-openssl.")
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def ossl_hexver(hex_str):
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# See opensshlv.h for description of OPENSSL_VERSION_NUMBER
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MIN_OSSL_VER = 0x1010105F # Version 1.1.1e
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ver_as_int = int(hex_str[:-1], 16)
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ossl_major = (ver_as_int & 0xF0000000) >> 28
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ossl_minor = (ver_as_int & 0x0FF00000) >> 20
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ossl_fix = (ver_as_int & 0x000FF000) >> 12
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# as a letter a-z
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ossl_patch = chr(96 + ((ver_as_int & 0x00000FF0) >> 4))
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ver_as_str = f"{ossl_major}.{ossl_minor}.{ossl_fix}{ossl_patch}"
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if ver_as_int < MIN_OSSL_VER:
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die(f"OpenSSL version {ver_as_str} is too old.")
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return ver_as_str
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check = dedent(
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"""\
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#include <openssl/opensslv.h>
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#ifdef OPENSSL_VERSION_STR
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OPENSSL_VERSION_STR
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#elif defined(OPENSSL_VERSION_NUMBER)
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OPENSSL_VERSION_NUMBER
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#else
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#error Unable to determine OpenSSL version.
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#endif
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"""
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)
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result = try_preprocess(
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configure_cache,
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compiler.wrapper
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+ [compiler.compiler]
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+ compiler.flags
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+ list(openssl_flags.cflags),
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"C",
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check,
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)
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if result:
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openssl_ver = result.splitlines()[-1]
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if openssl_ver.startswith("0x"):
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# OpenSSL 1.x.x - like 0x1010107fL
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openssl_ver = ossl_hexver(openssl_ver)
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else:
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# OpenSSL 3.x.x - quoted version like "3.0.7"
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openssl_ver = openssl_ver.replace('"', "")
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major_version = openssl_ver.split(".")[0]
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if major_version != "3":
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die(
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"Unrecognized OpenSSL version {openssl_version} found. Require >= 1.1.1e or 3.x.x"
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)
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log.info(f"Found OpenSSL {openssl_ver}.")
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return openssl_ver
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set_config("MZLA_LIBRNP_OPENSSL_VERSION", openssl_version)
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# Checks for building librnp itself
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# =================================
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have_fcntl_h = check_header("fcntl.h")
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have_string_h = check_header("string.h")
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check_headers(
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"limits.h",
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"sys/auxv.h",
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"sys/cdefs.h",
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"sys/resource.h",
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"sys/param.h",
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"sys/stat.h",
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"sys/wait.h",
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)
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set_define("HAVE_MKDTEMP", check_symbol_exists("mkdtemp", ["stdlib.h", "unistd.h"]))
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set_define("HAVE_MKSTEMP", check_symbol_exists("mkstemp", ["stdlib.h", "unistd.h"]))
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set_define("HAVE_REALPATH", check_symbol_exists("realpath", "stdlib.h"))
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set_define("HAVE_O_BINARY", check_symbol_exists("O_BINARY", "fcntl.h"))
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set_define("HAVE__O_BINARY", check_symbol_exists("_O_BINARY", "fcntl.h"))
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# Checks when building JSON-C from tree sources
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# =============================================
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with only_when(in_tree_jsonc):
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have_stdlib_h = check_header("stdlib.h")
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have_locale_h = check_header("locale.h")
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have_strings_h = check_header("strings.h")
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set_config("HAVE_STDINT_H", noset_check_header("stdint.h"))
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check_headers("stdarg.h", "dlfcn.h", "endian.h", "memory.h", "xlocale.h")
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set_define("HAVE_DECL__ISNAN", check_symbol_exists("_isnan", "float.h"))
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set_define("HAVE_DECL__FINITE", check_symbol_exists("_finite", "float.h"))
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set_define("HAVE_DECL_INFINITY", check_symbol_exists("INFINITY", "math.h"))
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set_define("HAVE_DECL_ISINF", check_symbol_exists("isinf", "math.h"))
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set_define("HAVE_DECL_ISNAN", check_symbol_exists("isnan", "math.h"))
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set_define("HAVE_DECL_NAN", check_symbol_exists("nan", "math.h"))
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set_define("HAVE_DOPRNT", check_symbol_exists("_doprnt", "stdio.h"))
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set_define("HAVE_SNPRINTF", check_symbol_exists("snprintf", "stdio.h"))
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set_define(
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"HAVE_VASPRINTF",
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check_symbol_exists("vasprintf", "stdio.h", flags=["-D_GNU_SOURCE"]),
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)
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set_define("HAVE_VSNPRINTF", check_symbol_exists("vsnprintf", "stdio.h"))
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set_define("HAVE_VPRINTF", check_symbol_exists("vprintf", "stdio.h"))
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set_define("HAVE_OPEN", check_symbol_exists("open", "fcntl.h", when=have_fcntl_h))
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set_define(
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"HAVE_REALLOC",
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check_symbol_exists("realloc", "stdlib.h", when=have_stdlib_h),
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)
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set_define(
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"HAVE_SETLOCALE",
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check_symbol_exists("setlocale", "locale.h", when=have_locale_h),
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)
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set_define(
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"HAVE_USELOCALE",
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check_symbol_exists("uselocale", "locale.h", when=have_locale_h),
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)
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set_define(
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"HAVE_STRCASECMP",
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check_symbol_exists("strcasecmp", "strings.h", when=have_strings_h),
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)
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set_define(
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"HAVE_STRNCASECMP",
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check_symbol_exists("strncasecmp", "strings.h", when=have_strings_h),
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)
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set_define("HAVE_STRDUP", check_symbol_exists("strdup", "string.h", when=have_string_h))
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