1 cmake_minimum_required (VERSION 2.8.4 FATAL_ERROR)
4 cmake_policy (SET CMP0042 NEW)
7 # ----------------------------------------------------------------------------
9 set (CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
12 # ----------------------------------------------------------------------------
14 set (PACKAGE_NAME "gflags")
15 set (PACKAGE_VERSION "2.2.0")
16 set (PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
17 set (PACKAGE_TARNAME "${PACKAGE_NAME}-${PACKAGE_VERSION}")
18 set (PACKAGE_BUGREPORT "https://github.com/schuhschuh/gflags/issues")
20 project (${PACKAGE_NAME} CXX)
21 if (CMAKE_VERSION VERSION_LESS 100)
22 # C language still needed because the following required CMake modules
23 # (or their dependencies, respectively) are not correctly handling
24 # the case where only CXX is enabled.
25 # - CheckTypeSize.cmake (fixed in CMake 3.1, cf. http://www.cmake.org/Bug/view.php?id=14056)
26 # - FindThreads.cmake (--> CheckIncludeFiles.cmake <--)
37 set (PACKAGE_SOVERSION "${PACKAGE_VERSION_MAJOR}")
39 # ----------------------------------------------------------------------------
41 if (NOT GFLAGS_NAMESPACE)
42 # maintain binary backwards compatibility with gflags library version <= 2.0,
43 # but at the same time enable the use of the preferred new "gflags" namespace
44 set (GFLAGS_NAMESPACE "google;${PACKAGE_NAME}" CACHE STRING "Name(s) of library namespace (separate multiple options by semicolon)")
45 mark_as_advanced (GFLAGS_NAMESPACE)
47 set (GFLAGS_NAMESPACE_SECONDARY "${GFLAGS_NAMESPACE}")
48 list (REMOVE_DUPLICATES GFLAGS_NAMESPACE_SECONDARY)
49 if (NOT GFLAGS_NAMESPACE_SECONDARY)
50 message (FATAL_ERROR "GFLAGS_NAMESPACE must be set to one (or more) valid C++ namespace identifier(s separated by semicolon \";\").")
52 foreach (ns IN LISTS GFLAGS_NAMESPACE_SECONDARY)
53 if (NOT ns MATCHES "^[a-zA-Z][a-zA-Z0-9_]*$")
54 message (FATAL_ERROR "GFLAGS_NAMESPACE contains invalid namespace identifier: ${ns}")
57 list (GET GFLAGS_NAMESPACE_SECONDARY 0 GFLAGS_NAMESPACE)
58 list (REMOVE_AT GFLAGS_NAMESPACE_SECONDARY 0)
60 option (BUILD_SHARED_LIBS "Request build of shared libraries." OFF)
61 option (BUILD_STATIC_LIBS "Request build of static libraries (default if BUILD_SHARED_LIBS is OFF)." OFF)
62 option (BUILD_gflags_LIB "Request build of the multi-threaded gflags library." ON)
63 option (BUILD_gflags_nothreads_LIB "Request build of the single-threaded gflags library." ON)
64 option (BUILD_PACKAGING "Enable build of distribution packages using CPack." OFF)
65 option (BUILD_TESTING "Enable build of the unit tests and their execution using CTest." OFF)
66 option (BUILD_NC_TESTS "Request addition of negative compilation tests." OFF)
67 option (INSTALL_HEADERS "Request packaging of headers and other development files." ON)
69 mark_as_advanced (CLEAR CMAKE_INSTALL_PREFIX)
70 mark_as_advanced (CMAKE_CONFIGURATION_TYPES
75 mark_as_advanced(CMAKE_OSX_ARCHITECTURES
76 CMAKE_OSX_DEPLOYMENT_TARGET
80 if (NOT BUILD_SHARED_LIBS AND NOT BUILD_STATIC_LIBS)
81 set (BUILD_STATIC_LIBS ON)
83 if (NOT BUILD_gflags_LIB AND NOT BUILD_gflags_nothreads_LIB)
84 message (FATAL_ERROR "At least one of BUILD_gflags_LIB and BUILD_gflags_nothreads_LIB must be ON.")
87 if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CXX_FLAGS)
88 set_property (CACHE CMAKE_BUILD_TYPE PROPERTY VALUE Release)
91 if (NOT GFLAGS_INCLUDE_DIR)
92 set (GFLAGS_INCLUDE_DIR "${PACKAGE_NAME}" CACHE STRING "Name of include directory of installed header files")
93 mark_as_advanced (GFLAGS_INCLUDE_DIR)
95 if (IS_ABSOLUTE GFLAGS_INCLUDE_DIR)
96 message (FATAL_ERROR "GFLAGS_INCLUDE_DIR must be a path relative to CMAKE_INSTALL_PREFIX/include")
98 if (GFLAGS_INCLUDE_DIR MATCHES "^\\.\\.[/\\]")
99 message (FATAL_ERROR "GFLAGS_INCLUDE_DIR must not start with parent directory reference (../)")
103 # ----------------------------------------------------------------------------
105 include (CheckTypeSize)
106 include (CheckIncludeFileCXX)
107 include (CheckCXXSymbolExists)
109 if (WIN32 AND NOT CYGWIN)
116 set (HAVE_SYS_TYPES_H 1)
117 set (HAVE_STDINT_H 1)
118 set (HAVE_STDDEF_H 1) # used by CheckTypeSize module
119 set (HAVE_INTTYPES_H 0)
120 set (HAVE_UNISTD_H 0)
121 set (HAVE_SYS_STAT_H 1)
122 set (HAVE_SHLWAPI_H 1)
124 foreach (fname IN ITEMS unistd stdint inttypes sys/types sys/stat fnmatch)
125 string (TOUPPER "${fname}" FNAME)
126 string (REPLACE "/" "_" FNAME "${FNAME}")
127 if (NOT HAVE_${FNAME}_H)
128 check_include_file_cxx ("${fname}.h" HAVE_${FNAME}_H)
131 # the following are used in #if directives not #ifdef
132 bool_to_int (HAVE_STDINT_H)
133 bool_to_int (HAVE_SYS_TYPES_H)
134 bool_to_int (HAVE_INTTYPES_H)
135 if (NOT HAVE_FNMATCH_H AND OS_WINDOWS)
136 check_include_file_cxx ("shlwapi.h" HAVE_SHLWAPI_H)
140 set (GFLAGS_INTTYPES_FORMAT "" CACHE STRING "Format of integer types: \"C99\" (uint32_t), \"BSD\" (u_int32_t), \"VC7\" (__int32)")
141 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY STRINGS "C99;BSD;VC7")
142 mark_as_advanced (GFLAGS_INTTYPES_FORMAT)
143 if (NOT GFLAGS_INTTYPES_FORMAT)
144 set (TYPES uint32_t u_int32_t)
146 list (INSERT TYPES 0 __int32)
148 foreach (type IN LISTS TYPES)
149 check_type_size (${type} ${type} LANGUAGE CXX)
155 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE C99)
156 elseif (HAVE_u_int32_t)
157 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE BSD)
158 elseif (HAVE___int32)
159 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE VC7)
161 mark_as_advanced (CLEAR GFLAGS_INTTYPES_FORMAT)
162 message (FATAL_ERROR "Do not know how to define a 32-bit integer quantity on your system!"
163 " Neither uint32_t, u_int32_t, nor __int32 seem to be available."
164 " Set GFLAGS_INTTYPES_FORMAT to either C99, BSD, or VC7 and try again.")
167 # use of special characters in strings to circumvent bug #0008226
168 if ("^${GFLAGS_INTTYPES_FORMAT}$" STREQUAL "^WIN$")
169 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE VC7)
171 if (NOT GFLAGS_INTTYPES_FORMAT MATCHES "^(C99|BSD|VC7)$")
172 message (FATAL_ERROR "Invalid value for GFLAGS_INTTYPES_FORMAT! Choose one of \"C99\", \"BSD\", or \"VC7\"")
174 set (GFLAGS_INTTYPES_FORMAT_C99 0)
175 set (GFLAGS_INTTYPES_FORMAT_BSD 0)
176 set (GFLAGS_INTTYPES_FORMAT_VC7 0)
177 set ("GFLAGS_INTTYPES_FORMAT_${GFLAGS_INTTYPES_FORMAT}" 1)
183 check_cxx_symbol_exists (strtoll stdlib.h HAVE_STRTOLL)
184 if (NOT HAVE_STRTOLL)
185 check_cxx_symbol_exists (strtoq stdlib.h HAVE_STRTOQ)
189 set (CMAKE_THREAD_PREFER_PTHREAD TRUE)
190 find_package (Threads)
191 if (Threads_FOUND AND CMAKE_USE_PTHREADS_INIT)
193 check_type_size (pthread_rwlock_t RWLOCK LANGUAGE CXX)
198 if (UNIX AND NOT HAVE_PTHREAD AND BUILD_gflags_LIB)
199 if (CMAKE_HAVE_PTHREAD_H)
204 message (FATAL_ERROR "Could not find pthread${what}. Check the log file"
205 "\n\t${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log"
206 "\nor disable the build of the multi-threaded gflags library (BUILD_gflags_LIB=OFF).")
209 # ----------------------------------------------------------------------------
210 # source files - excluding root subdirectory and/or .in suffix
214 "gflags_completions.h"
217 if (GFLAGS_NAMESPACE_SECONDARY)
218 set (INCLUDE_GFLAGS_NS_H "// Import gflags library symbols into alternative/deprecated namespace(s)")
219 foreach (ns IN LISTS GFLAGS_NAMESPACE_SECONDARY)
220 string (TOUPPER "${ns}" NS)
221 set (gflags_ns_h "${PROJECT_BINARY_DIR}/include/${GFLAGS_INCLUDE_DIR}/gflags_${ns}.h")
222 configure_file ("${PROJECT_SOURCE_DIR}/src/gflags_ns.h.in" "${gflags_ns_h}" @ONLY)
223 list (APPEND PUBLIC_HDRS "${gflags_ns_h}")
224 set (INCLUDE_GFLAGS_NS_H "${INCLUDE_GFLAGS_NS_H}\n#include \"gflags_${ns}.h\"")
227 set (INCLUDE_GFLAGS_NS_H)
238 "gflags_reporting.cc"
239 "gflags_completions.cc"
243 list (APPEND PRIVATE_HDRS "windows_port.h")
244 list (APPEND GFLAGS_SRCS "windows_port.cc")
247 # ----------------------------------------------------------------------------
248 # configure source files
249 if (CMAKE_COMPILER_IS_GNUCXX)
250 set (GFLAGS_ATTRIBUTE_UNUSED "__attribute((unused))")
252 set (GFLAGS_ATTRIBUTE_UNUSED)
255 # whenever we build a shared library (DLL on Windows), configure the public
256 # headers of the API for use of this library rather than the optionally
257 # also build statically linked library; users can override GFLAGS_DLL_DECL
258 if (BUILD_SHARED_LIBS)
259 set (GFLAGS_IS_A_DLL 1)
261 set (GFLAGS_IS_A_DLL 0)
264 configure_headers (PUBLIC_HDRS ${PUBLIC_HDRS})
265 configure_sources (PRIVATE_HDRS ${PRIVATE_HDRS})
266 configure_sources (GFLAGS_SRCS ${GFLAGS_SRCS})
268 # deprecated declaration of include directories for older CMake versions
269 if (NOT COMMAND target_include_directories)
270 include_directories ("${PROJECT_SOURCE_DIR}/src")
271 include_directories ("${PROJECT_BINARY_DIR}/include")
272 include_directories ("${PROJECT_BINARY_DIR}/include/${GFLAGS_INCLUDE_DIR}")
275 # ----------------------------------------------------------------------------
277 set (CMAKE_RUNTIME_OUTPUT_DIRECTORY "bin")
278 set (CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib")
279 set (CMAKE_ARCHIVE_OUTPUT_DIRECTORY "lib")
281 # ----------------------------------------------------------------------------
282 # installation directories
284 set (RUNTIME_INSTALL_DIR Bin)
285 set (LIBRARY_INSTALL_DIR Lib)
286 set (INCLUDE_INSTALL_DIR Include)
287 set (CONFIG_INSTALL_DIR CMake)
289 set (RUNTIME_INSTALL_DIR bin)
290 # The LIB_INSTALL_DIR and LIB_SUFFIX variables are used by the Fedora
291 # package maintainers. Also package maintainers of other distribution
292 # packages need to be able to specify the name of the library directory.
293 if (NOT LIB_INSTALL_DIR)
294 set (LIB_INSTALL_DIR "lib${LIB_SUFFIX}")
296 set (LIBRARY_INSTALL_DIR "${LIB_INSTALL_DIR}"
297 CACHE PATH "Directory of installed libraries, e.g., \"lib64\""
299 mark_as_advanced (LIBRARY_INSTALL_DIR)
300 set (INCLUDE_INSTALL_DIR include)
301 set (CONFIG_INSTALL_DIR ${LIBRARY_INSTALL_DIR}/cmake/${PACKAGE_NAME})
304 # ----------------------------------------------------------------------------
305 # add library targets
308 foreach (TYPE IN ITEMS STATIC SHARED)
309 if (BUILD_${TYPE}_LIBS)
310 # whether or not targets are a DLL
311 if (OS_WINDOWS AND "^${TYPE}$" STREQUAL "^SHARED$")
312 set (GFLAGS_IS_A_DLL 1)
314 set (GFLAGS_IS_A_DLL 0)
316 string (TOLOWER "${TYPE}" type)
317 # multi-threaded vs. single-threaded
318 foreach (opts IN ITEMS "" _nothreads)
319 if (BUILD_gflags${opts}_LIB)
320 add_library (gflags${opts}-${type} ${TYPE} ${GFLAGS_SRCS} ${PRIVATE_HDRS} ${PUBLIC_HDRS})
321 if (COMMAND target_include_directories)
322 target_include_directories (gflags${opts}-${type}
323 PUBLIC "$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>"
324 PRIVATE "${PROJECT_SOURCE_DIR}/src;${PROJECT_BINARY_DIR}/include/${GFLAGS_INCLUDE_DIR}"
327 target_include_directories (gflags${opts}-${type}
328 PUBLIC "$<INSTALL_INTERFACE:${INCLUDE_INSTALL_DIR}>"
332 if (opts MATCHES "nothreads")
333 set (defines "GFLAGS_IS_A_DLL=${GFLAGS_IS_A_DLL};NOTHREADS")
335 set (defines "GFLAGS_IS_A_DLL=${GFLAGS_IS_A_DLL}")
336 if (CMAKE_USE_PTHREADS_INIT)
337 target_link_libraries (gflags${opts}-${type} ${CMAKE_THREAD_LIBS_INIT})
340 set_target_properties (
341 gflags${opts}-${type} PROPERTIES COMPILE_DEFINITIONS "${defines}"
342 OUTPUT_NAME "gflags${opts}"
343 VERSION "${PACKAGE_VERSION}"
344 SOVERSION "${PACKAGE_SOVERSION}"
347 target_link_libraries (gflags${opts}-${type} shlwapi.lib)
349 if (NOT TARGET gflags${opts})
350 add_custom_target (gflags${opts})
352 add_dependencies (gflags${opts} gflags${opts}-${type})
353 list (APPEND TARGETS gflags${opts}-${type})
359 # ----------------------------------------------------------------------------
361 file (RELATIVE_PATH INSTALL_PREFIX_REL2CONFIG_DIR "${CMAKE_INSTALL_PREFIX}/${CONFIG_INSTALL_DIR}" "${CMAKE_INSTALL_PREFIX}")
362 configure_file (cmake/config.cmake.in "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-install.cmake" @ONLY)
363 configure_file (cmake/version.cmake.in "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-version.cmake" @ONLY)
365 install (TARGETS ${TARGETS} DESTINATION ${LIBRARY_INSTALL_DIR} EXPORT gflags-lib)
367 install (FILES ${PUBLIC_HDRS} DESTINATION ${INCLUDE_INSTALL_DIR}/${GFLAGS_INCLUDE_DIR})
369 FILES "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-install.cmake"
370 RENAME ${PACKAGE_NAME}-config.cmake
371 DESTINATION ${CONFIG_INSTALL_DIR}
374 FILES "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-version.cmake"
375 DESTINATION ${CONFIG_INSTALL_DIR}
377 install (EXPORT gflags-lib DESTINATION ${CONFIG_INSTALL_DIR} FILE ${PACKAGE_NAME}-export.cmake)
379 install (PROGRAMS src/gflags_completions.sh DESTINATION ${RUNTIME_INSTALL_DIR})
383 # ----------------------------------------------------------------------------
384 # support direct use of build tree
385 set (INSTALL_PREFIX_REL2CONFIG_DIR .)
386 export (TARGETS ${TARGETS} FILE "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-export.cmake")
387 export (PACKAGE gflags)
388 configure_file (cmake/config.cmake.in "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config.cmake" @ONLY)
390 # ----------------------------------------------------------------------------
391 # testing - MUST follow the generation of the build tree config file
395 add_subdirectory (test)
398 # ----------------------------------------------------------------------------
402 if (NOT BUILD_SHARED_LIBS AND NOT INSTALL_HEADERS)
403 message (WARNING "Package will contain static libraries without headers!"
404 "\nRecommended options for generation of runtime package:"
405 "\n BUILD_SHARED_LIBS=ON"
406 "\n BUILD_STATIC_LIBS=OFF"
407 "\n INSTALL_HEADERS=OFF"
408 "\nRecommended options for generation of development package:"
409 "\n BUILD_SHARED_LIBS=ON"
410 "\n BUILD_STATIC_LIBS=ON"
411 "\n INSTALL_HEADERS=ON")
414 # default package generators
416 set (PACKAGE_GENERATOR "PackageMaker")
417 set (PACKAGE_SOURCE_GENERATOR "TGZ;ZIP")
419 set (PACKAGE_GENERATOR "DEB;RPM")
420 set (PACKAGE_SOURCE_GENERATOR "TGZ;ZIP")
422 set (PACKAGE_GENERATOR "ZIP")
423 set (PACKAGE_SOURCE_GENERATOR "ZIP")
426 # used package generators
427 set (CPACK_GENERATOR "${PACKAGE_GENERATOR}" CACHE STRING "List of binary package generators (CPack).")
428 set (CPACK_SOURCE_GENERATOR "${PACKAGE_SOURCE_GENERATOR}" CACHE STRING "List of source package generators (CPack).")
429 mark_as_advanced (CPACK_GENERATOR CPACK_SOURCE_GENERATOR)
431 # common package information
432 set (CPACK_PACKAGE_VENDOR "Andreas Schuh")
433 set (CPACK_PACKAGE_CONTACT "google-gflags@googlegroups.com")
434 set (CPACK_PACKAGE_NAME "${PACKAGE_NAME}")
435 set (CPACK_PACKAGE_VERSION "${PACKAGE_VERSION}")
436 set (CPACK_PACKAGE_VERSION_MAJOR "${PACKAGE_VERSION_MAJOR}")
437 set (CPACK_PACKAGE_VERSION_MINOR "${PACKAGE_VERSION_MINOR}")
438 set (CPACK_PACKAGE_VERSION_PATCH "${PACKAGE_VERSION_PATCH}")
439 set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "A commandline flags library that allows for distributed flags.")
440 set (CPACK_RESOURCE_FILE_WELCOME "${CMAKE_CURRENT_LIST_DIR}/README.md")
441 set (CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_LIST_DIR}/COPYING.txt")
442 set (CPACK_PACKAGE_DESCRIPTION_FILE "${CMAKE_CURRENT_LIST_DIR}/README.md")
443 set (CPACK_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
444 set (CPACK_OUTPUT_FILE_PREFIX packages)
445 set (CPACK_PACKAGE_RELOCATABLE TRUE)
446 set (CPACK_MONOLITHIC_INSTALL TRUE)
448 # RPM package information -- used in cmake/package.cmake.in also for DEB
449 set (CPACK_RPM_PACKAGE_GROUP "Development/Libraries")
450 set (CPACK_RPM_PACKAGE_LICENSE "BSD")
451 set (CPACK_RPM_PACKAGE_URL "http://schuhschuh.github.com/gflags")
452 set (CPACK_RPM_CHANGELOG_FILE "${CMAKE_CURRENT_LIST_DIR}/ChangeLog.txt")
455 set (CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_LIST_DIR}/doc/index.html")
457 set (CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_LIST_DIR}/cmake/README_runtime.txt")
460 # system/architecture
463 set (CPACK_SYSTEM_NAME "win64")
465 set (CPACK_SYSTEM_NAME "win32")
467 set (CPACK_PACKAGE_ARCHITECTURE)
469 set (CPACK_PACKAGE_ARCHITECTURE darwin)
471 string (TOLOWER "${CMAKE_SYSTEM_NAME}" CPACK_SYSTEM_NAME)
472 if (CMAKE_CXX_FLAGS MATCHES "-m32")
473 set (CPACK_PACKAGE_ARCHITECTURE i386)
476 COMMAND dpkg --print-architecture
478 OUTPUT_VARIABLE CPACK_PACKAGE_ARCHITECTURE
481 string (STRIP "${CPACK_PACKAGE_ARCHITECTURE}" CPACK_PACKAGE_ARCHITECTURE)
483 execute_process (COMMAND uname -m OUTPUT_VARIABLE CPACK_PACKAGE_ARCHITECTURE)
484 if (CPACK_PACKAGE_ARCHITECTURE MATCHES "x86_64")
485 set (CPACK_PACKAGE_ARCHITECTURE amd64)
487 set (CPACK_PACKAGE_ARCHITECTURE i386)
493 # source package settings
494 set (CPACK_SOURCE_TOPLEVEL_TAG "source")
495 set (CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
496 set (CPACK_SOURCE_IGNORE_FILES "/\\\\.git/;\\\\.swp$;\\\\.#;/#;\\\\.*~;cscope\\\\.*;/[Bb]uild[.+-_a-zA-Z0-9]*/")
498 # default binary package settings
499 set (CPACK_INCLUDE_TOPLEVEL_DIRECTORY TRUE)
500 set (CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}-${CPACK_SYSTEM_NAME}")
501 if (CPACK_PACKAGE_ARCHITECTURE)
502 set (CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_FILE_NAME}-${CPACK_PACKAGE_ARCHITECTURE}")
505 # generator specific configuration file
507 # allow package maintainers to use their own configuration file
508 # $ cmake -DCPACK_PROJECT_CONFIG_FILE:FILE=/path/to/package/config
509 if (NOT CPACK_PROJECT_CONFIG_FILE)
511 "${CMAKE_CURRENT_LIST_DIR}/cmake/package.cmake.in"
512 "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-package.cmake" @ONLY
514 set (CPACK_PROJECT_CONFIG_FILE "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-package.cmake")
519 endif () # BUILD_PACKAGING