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conanfile.py
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conanfile.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import stat
from conans import ConanFile, tools, CMake, AutoToolsBuildEnvironment
from conans.errors import ConanException
class ZlibConan(ConanFile):
name = "zlib"
version = "1.2.11"
url = "http://github.com/conan-community/conan-zlib"
homepage = "https://zlib.net"
author = "Conan Community"
license = "Zlib"
description = ("A Massively Spiffy Yet Delicately Unobtrusive Compression Library "
"(Also Free, Not to Mention Unencumbered by Patents)")
settings = "os", "arch", "compiler", "build_type"
options = {"shared": [True, False], "fPIC": [True, False], "minizip": [True, False]}
default_options = "shared=False", "fPIC=True", "minizip=False"
exports = ["LICENSE", "FindZLIB.cmake"]
exports_sources = ["CMakeLists.txt", "CMakeLists_minizip.txt", "minizip.patch"]
generators = "cmake"
_source_subfolder = "source_subfolder"
def config_options(self):
if self.settings.os == "Windows":
del self.options.fPIC
def configure(self):
del self.settings.compiler.libcxx
def source(self):
sha256 = "c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1"
try:
tools.get("{}/{}-{}.tar.gz".format(self.homepage, self.name, self.version),
sha256=sha256)
except ConanException:
mirror = "https://downloads.sourceforge.net/project/libpng/zlib/{version}/zlib-{version}.tar.gz"
tools.get(mirror.format(version=self.version), sha256=sha256)
os.rename("{}-{}".format(self.name, self.version), self._source_subfolder)
if not tools.os_info.is_windows:
configure_file = os.path.join(self._source_subfolder, "configure")
st = os.stat(configure_file)
os.chmod(configure_file, st.st_mode | stat.S_IEXEC)
tools.patch(patch_file="minizip.patch", base_path=self._source_subfolder)
def build(self):
self._build_zlib()
if self.options.minizip:
self._build_minizip()
@property
def _use_autotools(self):
return self.settings.os == "Linux" or tools.is_apple_os(self.settings.os)
def _build_zlib_autotools(self):
env_build = AutoToolsBuildEnvironment(self)
# configure passes CFLAGS to linker, should be LDFLAGS
tools.replace_in_file("../configure", "$LDSHARED $SFLAGS", "$LDSHARED $LDFLAGS")
# same thing in Makefile.in, when building tests/example executables
tools.replace_in_file("../Makefile.in", "$(CC) $(CFLAGS) -o", "$(CC) $(LDFLAGS) -o")
# we need to build only libraries without test example and minigzip
if self.options.shared:
make_target = "libz.%s.dylib" % self.version if tools.is_apple_os(self.settings.os) else "libz.so.%s" % self.version
else:
make_target = "libz.a"
env_build.configure("../", build=False, host=False, target=False)
env_build.make(target=make_target)
def _build_zlib_cmake(self):
cmake = CMake(self)
cmake.configure(build_dir=".")
# we need to build only libraries without test example/example64 and minigzip/minigzip64
make_target = "zlib" if self.options.shared else "zlibstatic"
cmake.build(build_dir=".", target=make_target)
def _build_zlib(self):
with tools.chdir(self._source_subfolder):
# https://github.com/madler/zlib/issues/268
tools.replace_in_file('gzguts.h',
'#if defined(_WIN32) || defined(__CYGWIN__)',
'#if defined(_WIN32) || defined(__MINGW32__)')
if self.settings.os == "iOS":
tools.replace_in_file("gzguts.h", '#ifdef _LARGEFILE64_SOURCE', '#include <unistd.h>\n\n#ifdef _LARGEFILE64_SOURCE')
for filename in ['zconf.h', 'zconf.h.cmakein', 'zconf.h.in']:
tools.replace_in_file(filename,
'#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */',
'#if defined(HAVE_UNISTD_H) && (1-HAVE_UNISTD_H-1 != 0)')
tools.replace_in_file(filename,
'#ifdef HAVE_STDARG_H /* may be set to #if 1 by ./configure */',
'#if defined(HAVE_STDARG_H) && (1-HAVE_STDARG_H-1 != 0)')
tools.mkdir("_build")
with tools.chdir("_build"):
if self._use_autotools:
self._build_zlib_autotools()
else:
self._build_zlib_cmake()
def _build_minizip(self):
minizip_dir = os.path.join(self._source_subfolder, 'contrib', 'minizip')
os.rename("CMakeLists_minizip.txt", os.path.join(minizip_dir, 'CMakeLists.txt'))
with tools.chdir(minizip_dir):
cmake = CMake(self)
cmake.configure(source_folder=minizip_dir)
cmake.build()
cmake.install()
def _rename_libraries(self):
if self.settings.os == "Windows":
lib_path = os.path.join(self.package_folder, "lib")
suffix = "d" if self.settings.build_type == "Debug" else ""
if self.options.shared:
if self.settings.compiler == "Visual Studio":
current_lib = os.path.join(lib_path, "zlib%s.lib" % suffix)
os.rename(current_lib, os.path.join(lib_path, "zlib.lib"))
else:
if self.settings.compiler == "Visual Studio":
current_lib = os.path.join(lib_path, "zlibstatic%s.lib" % suffix)
os.rename(current_lib, os.path.join(lib_path, "zlib.lib"))
elif self.settings.compiler == "gcc":
current_lib = os.path.join(lib_path, "libzlibstatic.a")
os.rename(current_lib, os.path.join(lib_path, "libzlib.a"))
def _delete_crypt_header(self):
"""
Delete the crypt.h which is causing trouble for linking.
The crypt.h defines only static methods which are to be included
in zip.c/unzip.c so it will work just fine by including zip.h/unzip.h
and linking against libminizip
cf: https://bugzilla.redhat.com/show_bug.cgi?id=1424609
"""
crypt_path = os.path.join(self.package_folder, "include", "crypt.h")
if os.path.exists(crypt_path):
self.output.warn("Removing crypt.h at path: "
"{}".format(crypt_path))
os.remove(crypt_path)
else:
self.output.warn("Didn't find crypt.h at path: "
"{}".format(crypt_path))
def package(self):
# Extract the License/s from the header to a file
with tools.chdir(os.path.join(self.source_folder, self._source_subfolder)):
tmp = tools.load("zlib.h")
license_contents = tmp[2:tmp.find("*/", 1)]
tools.save("LICENSE", license_contents)
# Copy the license files
self.copy("LICENSE", src=self._source_subfolder, dst="licenses")
# Copy pc file
self.copy("*.pc", dst="", keep_path=False) # for compatibility only!
self.copy("*.pc", dst=os.path.join("lib", "pkgconfig"), keep_path=False)
# Copy headers
for header in ["*zlib.h", "*zconf.h"]:
self.copy(pattern=header, dst="include", src=self._source_subfolder, keep_path=False)
self.copy(pattern=header, dst="include", src="_build", keep_path=False)
# Copying static and dynamic libs
build_dir = os.path.join(self._source_subfolder, "_build")
if self.options.shared:
self.copy(pattern="*.dylib*", dst="lib", src=build_dir, keep_path=False, symlinks=True)
self.copy(pattern="*.so*", dst="lib", src=build_dir, keep_path=False, symlinks=True)
self.copy(pattern="*.dll", dst="bin", src=build_dir, keep_path=False)
self.copy(pattern="*.dll.a", dst="lib", src=build_dir, keep_path=False)
else:
self.copy(pattern="*.a", dst="lib", src=build_dir, keep_path=False)
self.copy(pattern="*.lib", dst="lib", src=build_dir, keep_path=False)
self._rename_libraries()
self._delete_crypt_header()
# Provide a cmake finder
self.copy('FindZLIB.cmake', '.', '.')
def package_info(self):
if self.options.minizip:
self.cpp_info.libs.append('minizip')
if self.options.shared:
self.cpp_info.defines.append('MINIZIP_DLL')
self.cpp_info.libs.append('zlib' if self.settings.os == "Windows" else "z")