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cmake_minimum_required (VERSION 2.8.4 FATAL_ERROR)
# ----------------------------------------------------------------------------
# includes
set (CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
include (utils)
# ----------------------------------------------------------------------------
# package information
Andreas Schuh
committed
set (PACKAGE_VERSION "2.1.0")
set (PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
set (PACKAGE_TARNAME "${PACKAGE_NAME}-${PACKAGE_VERSION}")
set (PACKAGE_BUGREPORT "https://code.google.com/p/gflags/issues/")
version_numbers (
${PACKAGE_VERSION}
PACKAGE_VERSION_MAJOR
PACKAGE_VERSION_MINOR
PACKAGE_VERSION_PATCH
)
# ----------------------------------------------------------------------------
set (GFLAGS_NAMESPACE "${PACKAGE_NAME}" CACHE STRING "C++ namespace identifier of gflags library.")
set (GFLAGS_INCLUDE_DIR "${PACKAGE_NAME}" CACHE STRING "Include subdirectory of gflags header files.")
if (IS_ABSOLUTE GFLAGS_INCLUDE_DIR)
message (FATAL_ERROR "GFLAGS_INCLUDE_DIR must be a path relative to CMAKE_INSTALL_PREFIX/include")
endif ()
if (GFLAGS_INCLUDE_DIR MATCHES "^\\.\\.[/\\]")
message (FATAL_ERROR "GFLAGS_INCLUDE_DIR must not start with parent directory reference (../)")
endif ()
option (BUILD_SHARED_LIBS "Request build of shared libraries." OFF)
option (BUILD_STATIC_LIBS "Request build of static libraries (default if BUILD_SHARED_LIBS is OFF)." OFF)
option (BUILD_gflags_LIB "Request build of the multi-threaded gflags library." ON)
option (BUILD_gflags_nothreads_LIB "Request build of the single-threaded gflags library." ON)
option (BUILD_PACKAGING "Enable build of distribution packages using CPack." OFF)
option (BUILD_TESTING "Enable build of the unit tests and their execution using CTest." OFF)
option (BUILD_NC_TESTS "Request addition of negative compilation tests." OFF)
option (INSTALL_HEADERS "Request packaging of headers and other development files." ON)
mark_as_advanced (CLEAR CMAKE_INSTALL_PREFIX)
mark_as_advanced (CMAKE_CONFIGURATION_TYPES
GFLAGS_NAMESPACE
GFLAGS_INCLUDE_DIR
BUILD_STATIC_LIBS
BUILD_NC_TESTS
INSTALL_HEADERS)
if (APPLE)
mark_as_advanced(CMAKE_OSX_ARCHITECTURES
CMAKE_OSX_DEPLOYMENT_TARGET
CMAKE_OSX_SYSROOT)
if (NOT BUILD_SHARED_LIBS AND NOT BUILD_STATIC_LIBS)
set (BUILD_STATIC_LIBS ON)
endif ()
if (NOT BUILD_gflags_LIB AND NOT BUILD_gflags_nothreads_LIB)
message (FATAL_ERROR "At least one of BUILD_gflags_LIB and BUILD_gflags_nothreads_LIB must be ON.")
endif ()
if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CXX_FLAGS)
set_property (CACHE CMAKE_BUILD_TYPE PROPERTY VALUE Release)
endif ()
# ----------------------------------------------------------------------------
# system checks
include (CheckTypeSize)
include (CheckIncludeFileCXX)
include (CheckCXXSymbolExists)
if (WIN32 AND NOT CYGWIN)
set (OS_WINDOWS 1)
else ()
set (OS_WINDOWS 0)
endif ()
if (MSVC)
set (HAVE_SYS_TYPES_H 1)
set (HAVE_STDINT_H 1)
set (HAVE_STDDEF_H 1) # used by CheckTypeSize module
set (HAVE_INTTYPES_H 0)
set (HAVE_UNISTD_H 0)
set (HAVE_SYS_STAT_H 1)
else ()
foreach (fname IN ITEMS unistd stdint inttypes sys/types sys/stat fnmatch)
string (TOUPPER "${fname}" FNAME)
string (REPLACE "/" "_" FNAME "${FNAME}")
if (NOT HAVE_${FNAME}_H)
check_include_file_cxx ("${fname}.h" HAVE_${FNAME}_H)
endif ()
endforeach ()
# the following are used in #if directives not #ifdef
bool_to_int (HAVE_STDINT_H)
bool_to_int (HAVE_SYS_TYPES_H)
bool_to_int (HAVE_INTTYPES_H)
if (NOT HAVE_FNMATCH_H AND OS_WINDOWS)
check_include_file_cxx ("shlwapi.h" HAVE_SHLWAPI_H)
endif ()
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endif ()
set (GFLAGS_INTTYPES_FORMAT "" CACHE STRING "Format of integer types: \"C99\" (uint32_t), \"BSD\" (u_int32_t), \"VC7\" (__int32)")
set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY STRINGS "C99;BSD;VC7")
mark_as_advanced (GFLAGS_INTTYPES_FORMAT)
if (NOT GFLAGS_INTTYPES_FORMAT)
set (TYPES uint32_t u_int32_t)
if (MSVC)
list (INSERT TYPES 0 __int32)
endif ()
foreach (type IN LISTS TYPES)
check_type_size (${type} ${type} LANGUAGE CXX)
if (HAVE_${type})
break ()
endif ()
endforeach ()
if (HAVE_uint32_t)
set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE C99)
elseif (HAVE_u_int32_t)
set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE BSD)
elseif (HAVE___int32)
set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE VC7)
else ()
mark_as_advanced (CLEAR GFLAGS_INTTYPES_FORMAT)
message (FATAL_ERROR "Do not know how to define a 32-bit integer quantity on your system!"
" Neither uint32_t, u_int32_t, nor __int32 seem to be available."
" Set GFLAGS_INTTYPES_FORMAT to either C99, BSD, or VC7 and try again.")
endif ()
endif ()
# use of special characters in strings to circumvent bug #0008226
if ("^${GFLAGS_INTTYPES_FORMAT}$" STREQUAL "^WIN$")
set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE VC7)
endif ()
if (NOT GFLAGS_INTTYPES_FORMAT MATCHES "^(C99|BSD|VC7)$")
message (FATAL_ERROR "Invalid value for GFLAGS_INTTYPES_FORMAT! Choose one of \"C99\", \"BSD\", or \"VC7\"")
endif ()
set (GFLAGS_INTTYPES_FORMAT_C99 0)
set (GFLAGS_INTTYPES_FORMAT_BSD 0)
set (GFLAGS_INTTYPES_FORMAT_VC7 0)
set ("GFLAGS_INTTYPES_FORMAT_${GFLAGS_INTTYPES_FORMAT}" 1)
if (MSVC)
set (HAVE_strtoll 0)
set (HAVE_strtoq 0)
else ()
check_cxx_symbol_exists (strtoll stdlib.h HAVE_STRTOLL)
if (NOT HAVE_STRTOLL)
check_cxx_symbol_exists (strtoq stdlib.h HAVE_STRTOQ)
endif ()
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endif ()
set (CMAKE_THREAD_PREFER_PTHREAD TRUE)
find_package (ThreadsCXX)
if (Threads_FOUND AND CMAKE_USE_PTHREADS_INIT)
set (HAVE_PTHREAD 1)
check_type_size (pthread_rwlock_t RWLOCK LANGUAGE CXX)
else ()
set (HAVE_PTHREAD 0)
endif ()
if (UNIX AND NOT HAVE_PTHREAD AND BUILD_gflags_LIB)
if (CMAKE_HAVE_PTHREAD_H)
set (what "library")
else ()
set (what ".h file")
endif ()
message (FATAL_ERROR "Could not find pthread${what}. Check the log file"
"\n\t${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log"
"\nor disable the build of the multi-threaded gflags library (BUILD_gflags_LIB=OFF).")
endif ()
# ----------------------------------------------------------------------------
# source files - excluding root subdirectory and/or .in suffix
set (PUBLIC_HDRS
"gflags.h"
"gflags_declare.h"
"gflags_completions.h"
)
set (PRIVATE_HDRS
"config.h"
)
set (GFLAGS_SRCS
"gflags.cc"
"gflags_reporting.cc"
"gflags_completions.cc"
)
list (APPEND PRIVATE_HDRS "windows_port.h")
list (APPEND GFLAGS_SRCS "windows_port.cc")
endif ()
# ----------------------------------------------------------------------------
# configure source files
if (CMAKE_COMPILER_IS_GNUCXX)
set (GFLAGS_ATTRIBUTE_UNUSED "__attribute((unused))")
else ()
set (GFLAGS_ATTRIBUTE_UNUSED)
endif ()
Andreas Schuh
committed
# whenever we build a shared library (DLL on Windows), configure the public
# headers of the API for use of this library rather than the optionally
# also build statically linked library; users can override GFLAGS_DLL_DECL
if (BUILD_SHARED_LIBS)
set (GFLAGS_IS_A_DLL 1)
else ()
set (GFLAGS_IS_A_DLL 0)
endif ()
configure_headers (PUBLIC_HDRS ${PUBLIC_HDRS})
configure_sources (PRIVATE_HDRS ${PRIVATE_HDRS})
configure_sources (GFLAGS_SRCS ${GFLAGS_SRCS})
include_directories ("${PROJECT_SOURCE_DIR}/src")
include_directories ("${PROJECT_BINARY_DIR}/include")
include_directories ("${PROJECT_BINARY_DIR}/include/${GFLAGS_INCLUDE_DIR}")
# ----------------------------------------------------------------------------
# output directories
set (CMAKE_RUNTIME_OUTPUT_DIRECTORY "bin")
set (CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib")
set (CMAKE_ARCHIVE_OUTPUT_DIRECTORY "lib")
# ----------------------------------------------------------------------------
# add library targets
set (TARGETS)
# static vs. shared
foreach (TYPE IN ITEMS STATIC SHARED)
if (BUILD_${TYPE}_LIBS)
# whether or not targets are a DLL
if (OS_WINDOWS AND "^${TYPE}$" STREQUAL "^SHARED$")
set (GFLAGS_IS_A_DLL 1)
else ()
set (GFLAGS_IS_A_DLL 0)
endif ()
string (TOLOWER "${TYPE}" type)
# multi-threaded vs. single-threaded
foreach (opts IN ITEMS "" _nothreads)
if (BUILD_gflags${opts}_LIB)
add_library (gflags${opts}-${type} ${TYPE} ${GFLAGS_SRCS} ${PRIVATE_HDRS} ${PUBLIC_HDRS})
if (opts MATCHES "nothreads")
set (defines "GFLAGS_IS_A_DLL=${GFLAGS_IS_A_DLL};NOTHREADS")
else ()
set (defines "GFLAGS_IS_A_DLL=${GFLAGS_IS_A_DLL}")
Andreas Schuh
committed
if (CMAKE_USE_PTHREADS_INIT)
target_link_libraries (gflags${opts}-${type} ${CMAKE_THREAD_LIBS_INIT})
endif ()
endif ()
set_target_properties (
gflags${opts}-${type} PROPERTIES COMPILE_DEFINITIONS "${defines}"
OUTPUT_NAME "gflags${opts}"
)
if (HAVE_SHLWAPI_H)
target_link_libraries (gflags${opts}-${type} shlwapi.lib)
endif ()
if (NOT TARGET gflags${opts})
add_custom_target (gflags${opts})
endif ()
add_dependencies (gflags${opts} gflags${opts}-${type})
list (APPEND TARGETS gflags${opts}-${type})
endif ()
endforeach ()
endif ()
# ----------------------------------------------------------------------------
# installation
set (RUNTIME_INSTALL_DIR Bin)
set (LIBRARY_INSTALL_DIR Lib)
set (INCLUDE_INSTALL_DIR Include)
set (CONFIG_INSTALL_DIR CMake)
else ()
set (RUNTIME_INSTALL_DIR bin)
set (LIBRARY_INSTALL_DIR lib)
set (INCLUDE_INSTALL_DIR include)
set (CONFIG_INSTALL_DIR lib/cmake/${PACKAGE_NAME})
endif ()
file (RELATIVE_PATH INSTALL_PREFIX_REL2CONFIG_DIR "${CMAKE_INSTALL_PREFIX}/${CONFIG_INSTALL_DIR}" "${CMAKE_INSTALL_PREFIX}")
configure_file (cmake/config.cmake.in "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-install.cmake" @ONLY)
configure_file (cmake/version.cmake.in "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-version.cmake" @ONLY)
install (TARGETS ${TARGETS} DESTINATION ${LIBRARY_INSTALL_DIR} EXPORT gflags-lib)
if (INSTALL_HEADERS)
install (FILES ${PUBLIC_HDRS} DESTINATION ${INCLUDE_INSTALL_DIR}/${GFLAGS_INCLUDE_DIR})
install (
FILES "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-install.cmake"
RENAME ${PACKAGE_NAME}-config.cmake
DESTINATION ${CONFIG_INSTALL_DIR}
)
install (
FILES "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-version.cmake"
DESTINATION ${CONFIG_INSTALL_DIR}
)
install (EXPORT gflags-lib DESTINATION ${CONFIG_INSTALL_DIR} FILE ${PACKAGE_NAME}-export.cmake)
if (UNIX)
install (PROGRAMS src/gflags_completions.sh DESTINATION ${RUNTIME_INSTALL_DIR})
endif ()
endif ()
# ----------------------------------------------------------------------------
# support direct use of build tree
set (INSTALL_PREFIX_REL2CONFIG_DIR .)
export (TARGETS ${TARGETS} FILE "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-export.cmake")
export (PACKAGE gflags)
configure_file (cmake/config.cmake.in "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config.cmake" @ONLY)
# ----------------------------------------------------------------------------
# testing - MUST follow the generation of the build tree config file
if (BUILD_TESTING)
enable_testing ()
add_subdirectory (test)
endif ()
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# ----------------------------------------------------------------------------
# packaging
if (BUILD_PACKAGING)
if (NOT BUILD_SHARED_LIBS AND NOT INSTALL_HEADERS)
message (WARNING "Package will contain static libraries without headers!"
"\nRecommended options for generation of runtime package:"
"\n BUILD_SHARED_LIBS=ON"
"\n BUILD_STATIC_LIBS=OFF"
"\n INSTALL_HEADERS=OFF"
"\nRecommended options for generation of development package:"
"\n BUILD_SHARED_LIBS=ON"
"\n BUILD_STATIC_LIBS=ON"
"\n INSTALL_HEADERS=ON")
endif ()
# default package generators
if (APPLE)
set (PACKAGE_GENERATOR "PackageMaker")
set (PACKAGE_SOURCE_GENERATOR "TGZ;ZIP")
elseif (UNIX)
set (PACKAGE_GENERATOR "DEB;RPM")
set (PACKAGE_SOURCE_GENERATOR "TGZ;ZIP")
else ()
set (PACKAGE_GENERATOR "ZIP")
set (PACKAGE_SOURCE_GENERATOR "ZIP")
endif ()
# used package generators
set (CPACK_GENERATOR "${PACKAGE_GENERATOR}" CACHE STRING "List of binary package generators (CPack).")
set (CPACK_SOURCE_GENERATOR "${PACKAGE_SOURCE_GENERATOR}" CACHE STRING "List of source package generators (CPack).")
mark_as_advanced (CPACK_GENERATOR CPACK_SOURCE_GENERATOR)
# common package information
set (CPACK_PACKAGE_VENDOR "Andreas Schuh")
set (CPACK_PACKAGE_CONTACT "google-gflags@googlegroups.com")
set (CPACK_PACKAGE_NAME "${PACKAGE_NAME}")
set (CPACK_PACKAGE_VERSION "${PACKAGE_VERSION}")
set (CPACK_PACKAGE_VERSION_MAJOR "${PACKAGE_VERSION_MAJOR}")
set (CPACK_PACKAGE_VERSION_MINOR "${PACKAGE_VERSION_MINOR}")
set (CPACK_PACKAGE_VERSION_PATCH "${PACKAGE_VERSION_PATCH}")
set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "A commandline flags library that allows for distributed flags.")
set (CPACK_RESOURCE_FILE_WELCOME "${CMAKE_CURRENT_LIST_DIR}/README.txt")
set (CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_LIST_DIR}/COPYING.txt")
set (CPACK_PACKAGE_DESCRIPTION_FILE "${CMAKE_CURRENT_LIST_DIR}/README.txt")
set (CPACK_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
set (CPACK_OUTPUT_FILE_PREFIX packages)
set (CPACK_PACKAGE_RELOCATABLE TRUE)
set (CPACK_MONOLITHIC_INSTALL TRUE)
# RPM package information -- used in cmake/package.cmake.in also for DEB
set (CPACK_RPM_PACKAGE_GROUP "Development/Libraries")
set (CPACK_RPM_PACKAGE_LICENSE "BSD")
set (CPACK_RPM_PACKAGE_URL "http://code.google.com/p/gflags")
set (CPACK_RPM_CHANGELOG_FILE "${CMAKE_CURRENT_LIST_DIR}/ChangeLog.txt")
if (INSTALL_HEADERS)
set (CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_LIST_DIR}/doc/gflags.html")
else ()
set (CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_LIST_DIR}/cmake/README_runtime.txt")
endif ()
# system/architecture
if (WINDOWS)
if (CMAKE_CL_64)
set (CPACK_SYSTEM_NAME "win64")
else ()
set (CPACK_SYSTEM_NAME "win32")
endif ()
set (CPACK_PACKAGE_ARCHITECTURE)
else ()
string (TOLOWER "${CMAKE_SYSTEM_NAME}" CPACK_SYSTEM_NAME)
if (CMAKE_CXX_FLAGS MATCHES "-m32")
set (CPACK_PACKAGE_ARCHITECTURE i386)
else ()
execute_process (
COMMAND dpkg --print-architecture
RESULT_VARIABLE RV
OUTPUT_VARIABLE CPACK_PACKAGE_ARCHITECTURE
)
if (RV EQUAL 0)
string (STRIP "${CPACK_PACKAGE_ARCHITECTURE}" CPACK_PACKAGE_ARCHITECTURE)
else ()
execute_process (COMMAND uname -m OUTPUT_VARIABLE CPACK_PACKAGE_ARCHITECTURE)
if (CPACK_PACKAGE_ARCHITECTURE MATCHES "x86_64")
set (CPACK_PACKAGE_ARCHITECTURE amd64)
else ()
set (CPACK_PACKAGE_ARCHITECTURE i386)
endif ()
endif ()
endif ()
endif ()
# source package settings
set (CPACK_SOURCE_TOPLEVEL_TAG "source")
set (CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
set (CPACK_SOURCE_IGNORE_FILES "/\\\\.git/;\\\\.swp$;\\\\.#;/#;\\\\.*~;cscope\\\\.*;/[Bb]uild[.+-_a-zA-Z0-9]*/")
# default binary package settings
set (CPACK_INCLUDE_TOPLEVEL_DIRECTORY TRUE)
set (CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}-${CPACK_SYSTEM_NAME}")
if (CPACK_PACKAGE_ARCHITECTURE)
set (CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_FILE_NAME}-${CPACK_PACKAGE_ARCHITECTURE}")
endif ()
# generator specific configuration file
#
# allow package maintainers to use their own configuration file
# $ cmake -DCPACK_PROJECT_CONFIG_FILE:FILE=/path/to/package/config
if (NOT CPACK_PROJECT_CONFIG_FILE)
configure_file (
"${CMAKE_CURRENT_LIST_DIR}/cmake/package.cmake.in"
"${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-package.cmake" @ONLY
)
set (CPACK_PROJECT_CONFIG_FILE "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-package.cmake")
endif ()
include (CPack)
endif () # BUILD_PACKAGING