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+# Copyright (C) 2009, 2016 Julian Andres Klode <jak@debian.org>.
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+# Licensed under the same terms as APT; i.e. GPL 2 or later.
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+
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+# set minimum version
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+project(apt)
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+cmake_minimum_required(VERSION 3.3.0)
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+
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+option(WITH_DOC "Build documentation." OFF)
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+option(USE_NLS "Localisation support." ON)
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+
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+set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/CMake")
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+
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+# Work around bug in GNUInstallDirs
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+if (EXISTS "/etc/debian_version")
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+ set(CMAKE_INSTALL_LIBEXECDIR "lib")
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+endif()
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+
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+# Include stuff
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+include(Misc)
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+include(CheckIncludeFiles)
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+include(CheckFunctionExists)
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+include(CheckStructHasMember)
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+include(GNUInstallDirs)
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+include(TestBigEndian)
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+find_package(Threads)
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+find_package(PkgConfig)
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+
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+# Set compiler flags
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+set(CMAKE_CXX_STANDARD 11)
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+set(CMAKE_CXX_STANDARD_REQUIRED ON)
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+set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
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+
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+add_optional_compile_options(Wall)
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+add_optional_compile_options(Wextra)
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+add_optional_compile_options(Wcast-align)
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+add_optional_compile_options(Wlogical-op)
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+add_optional_compile_options(Wredundant-decls)
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+add_optional_compile_options(Wmissing-declarations)
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+add_optional_compile_options(Wunsafe-loop-optimizations)
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+add_optional_compile_options(Wctor-dtor-privacy)
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+add_optional_compile_options(Wdisabled-optimization)
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+add_optional_compile_options(Winit-self)
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+add_optional_compile_options(Wmissing-include-dirs)
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+add_optional_compile_options(Wnoexcept)
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+add_optional_compile_options(Wsign-promo)
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+add_optional_compile_options(Wundef)
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+
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+# apt-ftparchive dependencies
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+find_package(BerkeleyDB REQUIRED)
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+if (BERKELEY_DB_FOUND)
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+ set(HAVE_BDB 1)
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+endif()
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+
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+
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+# apt-transport-https dependencies
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+pkg_check_modules(CURL libcurl REQUIRED)
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+if (CURL_FOUND)
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+ set(HAVE_CURL 1)
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+endif()
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+
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+# (De)Compressor libraries
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+find_package(ZLIB REQUIRED)
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+if (ZLIB_FOUND)
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+ set(HAVE_ZLIB 1)
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+endif()
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+
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+
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+find_package(BZip2)
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+if (BZIP2_FOUND)
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+ set(HAVE_BZ2 1)
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+endif()
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+
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+pkg_check_modules(LZMA liblzma)
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+if (LZMA_FOUND)
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+ set(HAVE_LZMA 1)
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+endif()
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+
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+pkg_check_modules(LZ4 liblz4)
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+if (LZ4_FOUND)
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+ set(HAVE_LZ4 1)
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+endif()
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+
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+# Mount()ing and stat()ing and friends
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+
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+check_function_exists(statvfs HAVE_STATVFS)
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+if (NOT HAVE_STATVFS)
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+ check_symbol_exists(statfs sys/vfs.h HAVE_VFS_H)
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+ check_symbol_exists(statfs sys/mount.h HAVE_MOUNT_H)
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+ if (NOT HAVE_VFS_H AND NOT HAVE_MOUNT_H)
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+ message(FATAL_ERROR "Can find neither statvfs() nor statfs()")
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+ endif()
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+ configure_file(buildlib/statvfs.h.in ${PROJECT_BINARY_DIR}/include/statvfs.h @ONLY)
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+endif()
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+
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+CHECK_STRUCT_HAS_MEMBER("struct statfs" f_type sys/vfs.h HAVE_STRUCT_STATFS_F_TYPE)
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+
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+# Other checks
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+check_function_exists(getresuid HAVE_GETRESUID)
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+check_function_exists(getresgid HAVE_GETRESGID)
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+check_function_exists(setresuid HAVE_SETRESUID)
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+check_function_exists(setresgid HAVE_SETRESGID)
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+check_function_exists(timegm HAVE_TIMEGM)
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+test_big_endian(WORDS_BIGENDIAN)
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+
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+if (CMAKE_USE_PTHREADS_INIT)
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+ set(HAVE_PTHREAD 1)
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+endif()
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+
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+# Configure some variables like package, version and architecture.
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+set(PACKAGE "apt")
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+
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+execute_process(COMMAND dpkg-parsechangelog -SVersion -l${PROJECT_SOURCE_DIR}/debian/changelog
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+ OUTPUT_VARIABLE PACKAGE_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
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+execute_process(COMMAND dpkg-architecture -qDEB_HOST_ARCH
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+ OUTPUT_VARIABLE COMMON_ARCH OUTPUT_STRIP_TRAILING_WHITESPACE)
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+
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+# Configure our configuration headers (config.h and apti18n.h)
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+configure_file(CMake/config.h.in ${PROJECT_BINARY_DIR}/include/config.h)
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+configure_file(CMake/apti18n.h.in ${PROJECT_BINARY_DIR}/include/apti18n.h)
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+
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+# Generic header locations
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+include_directories(${PROJECT_BINARY_DIR}/include)
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+
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+# Add our subdirectories
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+add_subdirectory(vendor)
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+add_subdirectory(apt-pkg)
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+add_subdirectory(apt-private)
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+add_subdirectory(apt-inst)
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+add_subdirectory(cmdline)
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+add_subdirectory(dselect)
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+add_subdirectory(ftparchive)
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+add_subdirectory(methods)
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