1 cmake_minimum_required (VERSION 2.8.12 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: ${ns}")
57 list (GET GFLAGS_NAMESPACE_SECONDARY 0 GFLAGS_NAMESPACE)
58 list (REMOVE_AT GFLAGS_NAMESPACE_SECONDARY 0)
60 option (BUILD_SHARED_LIBS "Request build of shared libraries." OFF)
61 option (BUILD_STATIC_LIBS "Request build of static libraries (default if BUILD_SHARED_LIBS is OFF)." OFF)
62 option (BUILD_gflags_LIB "Request build of the multi-threaded gflags library." ON)
63 option (BUILD_gflags_nothreads_LIB "Request build of the single-threaded gflags library." ON)
64 option (BUILD_PACKAGING "Enable build of distribution packages using CPack." OFF)
65 option (BUILD_TESTING "Enable build of the unit tests and their execution using CTest." OFF)
66 option (INSTALL_HEADERS "Request packaging of headers and other development files." ON)
68 mark_as_advanced (CLEAR CMAKE_INSTALL_PREFIX)
69 mark_as_advanced (CMAKE_CONFIGURATION_TYPES
73 mark_as_advanced(CMAKE_OSX_ARCHITECTURES
74 CMAKE_OSX_DEPLOYMENT_TARGET
78 if (NOT BUILD_SHARED_LIBS AND NOT BUILD_STATIC_LIBS)
79 set (BUILD_STATIC_LIBS ON)
81 if (NOT BUILD_gflags_LIB AND NOT BUILD_gflags_nothreads_LIB)
82 message (FATAL_ERROR "At least one of BUILD_gflags_LIB and BUILD_gflags_nothreads_LIB must be ON.")
85 if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CXX_FLAGS)
86 set_property (CACHE CMAKE_BUILD_TYPE PROPERTY VALUE Release)
89 if (NOT GFLAGS_INCLUDE_DIR)
90 set (GFLAGS_INCLUDE_DIR "${PACKAGE_NAME}" CACHE STRING "Name of include directory of installed header files")
91 mark_as_advanced (GFLAGS_INCLUDE_DIR)
93 if (IS_ABSOLUTE GFLAGS_INCLUDE_DIR)
94 message (FATAL_ERROR "GFLAGS_INCLUDE_DIR must be a path relative to CMAKE_INSTALL_PREFIX/include")
96 if (GFLAGS_INCLUDE_DIR MATCHES "^\\.\\.[/\\]")
97 message (FATAL_ERROR "GFLAGS_INCLUDE_DIR must not start with parent directory reference (../)")
101 # ----------------------------------------------------------------------------
103 include (CheckTypeSize)
104 include (CheckIncludeFileCXX)
105 include (CheckCXXSymbolExists)
107 if (WIN32 AND NOT CYGWIN)
114 set (HAVE_SYS_TYPES_H 1)
115 set (HAVE_STDINT_H 1)
116 set (HAVE_STDDEF_H 1) # used by CheckTypeSize module
117 set (HAVE_INTTYPES_H 0)
118 set (HAVE_UNISTD_H 0)
119 set (HAVE_SYS_STAT_H 1)
120 set (HAVE_SHLWAPI_H 1)
122 foreach (fname IN ITEMS unistd stdint inttypes sys/types sys/stat fnmatch)
123 string (TOUPPER "${fname}" FNAME)
124 string (REPLACE "/" "_" FNAME "${FNAME}")
125 if (NOT HAVE_${FNAME}_H)
126 check_include_file_cxx ("${fname}.h" HAVE_${FNAME}_H)
129 # the following are used in #if directives not #ifdef
130 bool_to_int (HAVE_STDINT_H)
131 bool_to_int (HAVE_SYS_TYPES_H)
132 bool_to_int (HAVE_INTTYPES_H)
133 if (NOT HAVE_FNMATCH_H AND OS_WINDOWS)
134 check_include_file_cxx ("shlwapi.h" HAVE_SHLWAPI_H)
138 set (GFLAGS_INTTYPES_FORMAT "" CACHE STRING "Format of integer types: \"C99\" (uint32_t), \"BSD\" (u_int32_t), \"VC7\" (__int32)")
139 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY STRINGS "C99;BSD;VC7")
140 mark_as_advanced (GFLAGS_INTTYPES_FORMAT)
141 if (NOT GFLAGS_INTTYPES_FORMAT)
142 set (TYPES uint32_t u_int32_t)
144 list (INSERT TYPES 0 __int32)
146 foreach (type IN LISTS TYPES)
147 check_type_size (${type} ${type} LANGUAGE CXX)
153 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE C99)
154 elseif (HAVE_u_int32_t)
155 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE BSD)
156 elseif (HAVE___int32)
157 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE VC7)
159 mark_as_advanced (CLEAR GFLAGS_INTTYPES_FORMAT)
160 message (FATAL_ERROR "Do not know how to define a 32-bit integer quantity on your system!"
161 " Neither uint32_t, u_int32_t, nor __int32 seem to be available."
162 " Set GFLAGS_INTTYPES_FORMAT to either C99, BSD, or VC7 and try again.")
165 # use of special characters in strings to circumvent bug #0008226
166 if ("^${GFLAGS_INTTYPES_FORMAT}$" STREQUAL "^WIN$")
167 set_property (CACHE GFLAGS_INTTYPES_FORMAT PROPERTY VALUE VC7)
169 if (NOT GFLAGS_INTTYPES_FORMAT MATCHES "^(C99|BSD|VC7)$")
170 message (FATAL_ERROR "Invalid value for GFLAGS_INTTYPES_FORMAT! Choose one of \"C99\", \"BSD\", or \"VC7\"")
172 set (GFLAGS_INTTYPES_FORMAT_C99 0)
173 set (GFLAGS_INTTYPES_FORMAT_BSD 0)
174 set (GFLAGS_INTTYPES_FORMAT_VC7 0)
175 set ("GFLAGS_INTTYPES_FORMAT_${GFLAGS_INTTYPES_FORMAT}" 1)
181 check_cxx_symbol_exists (strtoll stdlib.h HAVE_STRTOLL)
182 if (NOT HAVE_STRTOLL)
183 check_cxx_symbol_exists (strtoq stdlib.h HAVE_STRTOQ)
187 set (CMAKE_THREAD_PREFER_PTHREAD TRUE)
188 find_package (Threads)
189 if (Threads_FOUND AND CMAKE_USE_PTHREADS_INIT)
191 check_type_size (pthread_rwlock_t RWLOCK LANGUAGE CXX)
196 if (UNIX AND NOT HAVE_PTHREAD AND BUILD_gflags_LIB)
197 if (CMAKE_HAVE_PTHREAD_H)
202 message (FATAL_ERROR "Could not find pthread${what}. Check the log file"
203 "\n\t${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log"
204 "\nor disable the build of the multi-threaded gflags library (BUILD_gflags_LIB=OFF).")
207 # ----------------------------------------------------------------------------
208 # source files - excluding root subdirectory and/or .in suffix
212 "gflags_completions.h"
215 if (GFLAGS_NAMESPACE_SECONDARY)
216 set (INCLUDE_GFLAGS_NS_H "// Import gflags library symbols into alternative/deprecated namespace(s)")
217 foreach (ns IN LISTS GFLAGS_NAMESPACE_SECONDARY)
218 string (TOUPPER "${ns}" NS)
219 set (gflags_ns_h "${PROJECT_BINARY_DIR}/include/${GFLAGS_INCLUDE_DIR}/gflags_${ns}.h")
220 configure_file ("${PROJECT_SOURCE_DIR}/src/gflags_ns.h.in" "${gflags_ns_h}" @ONLY)
221 list (APPEND PUBLIC_HDRS "${gflags_ns_h}")
222 set (INCLUDE_GFLAGS_NS_H "${INCLUDE_GFLAGS_NS_H}\n#include \"gflags_${ns}.h\"")
225 set (INCLUDE_GFLAGS_NS_H)
236 "gflags_reporting.cc"
237 "gflags_completions.cc"
241 list (APPEND PRIVATE_HDRS "windows_port.h")
242 list (APPEND GFLAGS_SRCS "windows_port.cc")
245 # ----------------------------------------------------------------------------
246 # configure source files
247 if (CMAKE_COMPILER_IS_GNUCXX)
248 set (GFLAGS_ATTRIBUTE_UNUSED "__attribute((unused))")
250 set (GFLAGS_ATTRIBUTE_UNUSED)
253 # whenever we build a shared library (DLL on Windows), configure the public
254 # headers of the API for use of this library rather than the optionally
255 # also build statically linked library; users can override GFLAGS_DLL_DECL
256 if (BUILD_SHARED_LIBS)
257 set (GFLAGS_IS_A_DLL 1)
259 set (GFLAGS_IS_A_DLL 0)
262 configure_headers (PUBLIC_HDRS ${PUBLIC_HDRS})
263 configure_sources (PRIVATE_HDRS ${PRIVATE_HDRS})
264 configure_sources (GFLAGS_SRCS ${GFLAGS_SRCS})
266 # ----------------------------------------------------------------------------
268 set (CMAKE_RUNTIME_OUTPUT_DIRECTORY "bin")
269 set (CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib")
270 set (CMAKE_ARCHIVE_OUTPUT_DIRECTORY "lib")
272 # ----------------------------------------------------------------------------
273 # installation directories
275 set (RUNTIME_INSTALL_DIR Bin)
276 set (LIBRARY_INSTALL_DIR Lib)
277 set (INCLUDE_INSTALL_DIR Include)
278 set (CONFIG_INSTALL_DIR CMake)
280 set (RUNTIME_INSTALL_DIR bin)
281 # The LIB_INSTALL_DIR and LIB_SUFFIX variables are used by the Fedora
282 # package maintainers. Also package maintainers of other distribution
283 # packages need to be able to specify the name of the library directory.
284 if (NOT LIB_INSTALL_DIR)
285 set (LIB_INSTALL_DIR "lib${LIB_SUFFIX}")
287 set (LIBRARY_INSTALL_DIR "${LIB_INSTALL_DIR}"
288 CACHE PATH "Directory of installed libraries, e.g., \"lib64\""
290 mark_as_advanced (LIBRARY_INSTALL_DIR)
291 set (INCLUDE_INSTALL_DIR include)
292 set (CONFIG_INSTALL_DIR ${LIBRARY_INSTALL_DIR}/cmake/${PACKAGE_NAME})
295 # ----------------------------------------------------------------------------
296 # add library targets
299 foreach (TYPE IN ITEMS STATIC SHARED)
300 if (BUILD_${TYPE}_LIBS)
301 # whether or not targets are a DLL
302 if (OS_WINDOWS AND "^${TYPE}$" STREQUAL "^SHARED$")
303 set (GFLAGS_IS_A_DLL 1)
305 set (GFLAGS_IS_A_DLL 0)
307 string (TOLOWER "${TYPE}" type)
308 # multi-threaded vs. single-threaded
309 foreach (opts IN ITEMS "" _nothreads)
310 if (BUILD_gflags${opts}_LIB)
311 add_library (gflags${opts}-${type} ${TYPE} ${GFLAGS_SRCS} ${PRIVATE_HDRS} ${PUBLIC_HDRS})
312 set (include_dirs "$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>")
314 list (APPEND include_dirs "$<INSTALL_INTERFACE:${INCLUDE_INSTALL_DIR}>")
316 target_include_directories (gflags${opts}-${type}
317 PUBLIC "${include_dirs}"
318 PRIVATE "${PROJECT_SOURCE_DIR}/src;${PROJECT_BINARY_DIR}/include/${GFLAGS_INCLUDE_DIR}"
320 if (opts MATCHES "nothreads")
321 set (defines "GFLAGS_IS_A_DLL=${GFLAGS_IS_A_DLL};NOTHREADS")
323 set (defines "GFLAGS_IS_A_DLL=${GFLAGS_IS_A_DLL}")
324 if (CMAKE_USE_PTHREADS_INIT)
325 target_link_libraries (gflags${opts}-${type} ${CMAKE_THREAD_LIBS_INIT})
328 set_target_properties (
329 gflags${opts}-${type} PROPERTIES COMPILE_DEFINITIONS "${defines}"
330 OUTPUT_NAME "gflags${opts}"
331 VERSION "${PACKAGE_VERSION}"
332 SOVERSION "${PACKAGE_SOVERSION}"
335 target_link_libraries (gflags${opts}-${type} shlwapi.lib)
337 if (NOT TARGET gflags${opts})
338 add_custom_target (gflags${opts})
340 add_dependencies (gflags${opts} gflags${opts}-${type})
341 list (APPEND TARGETS gflags${opts}-${type})
347 # ----------------------------------------------------------------------------
349 file (RELATIVE_PATH INSTALL_PREFIX_REL2CONFIG_DIR "${CMAKE_INSTALL_PREFIX}/${CONFIG_INSTALL_DIR}" "${CMAKE_INSTALL_PREFIX}")
350 configure_file (cmake/config.cmake.in "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-install.cmake" @ONLY)
351 configure_file (cmake/version.cmake.in "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-version.cmake" @ONLY)
353 install (TARGETS ${TARGETS} DESTINATION ${LIBRARY_INSTALL_DIR} EXPORT gflags-lib)
355 install (FILES ${PUBLIC_HDRS} DESTINATION ${INCLUDE_INSTALL_DIR}/${GFLAGS_INCLUDE_DIR})
357 FILES "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-install.cmake"
358 RENAME ${PACKAGE_NAME}-config.cmake
359 DESTINATION ${CONFIG_INSTALL_DIR}
362 FILES "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config-version.cmake"
363 DESTINATION ${CONFIG_INSTALL_DIR}
365 install (EXPORT gflags-lib DESTINATION ${CONFIG_INSTALL_DIR} FILE ${PACKAGE_NAME}-export.cmake)
367 install (PROGRAMS src/gflags_completions.sh DESTINATION ${RUNTIME_INSTALL_DIR})
371 # ----------------------------------------------------------------------------
372 # support direct use of build tree
373 set (INSTALL_PREFIX_REL2CONFIG_DIR .)
374 export (TARGETS ${TARGETS} FILE "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-export.cmake")
375 export (PACKAGE gflags)
376 configure_file (cmake/config.cmake.in "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-config.cmake" @ONLY)
378 # ----------------------------------------------------------------------------
379 # testing - MUST follow the generation of the build tree config file
383 add_subdirectory (test)
386 # ----------------------------------------------------------------------------
390 if (NOT BUILD_SHARED_LIBS AND NOT INSTALL_HEADERS)
391 message (WARNING "Package will contain static libraries without headers!"
392 "\nRecommended options for generation of runtime package:"
393 "\n BUILD_SHARED_LIBS=ON"
394 "\n BUILD_STATIC_LIBS=OFF"
395 "\n INSTALL_HEADERS=OFF"
396 "\nRecommended options for generation of development package:"
397 "\n BUILD_SHARED_LIBS=ON"
398 "\n BUILD_STATIC_LIBS=ON"
399 "\n INSTALL_HEADERS=ON")
402 # default package generators
404 set (PACKAGE_GENERATOR "PackageMaker")
405 set (PACKAGE_SOURCE_GENERATOR "TGZ;ZIP")
407 set (PACKAGE_GENERATOR "DEB;RPM")
408 set (PACKAGE_SOURCE_GENERATOR "TGZ;ZIP")
410 set (PACKAGE_GENERATOR "ZIP")
411 set (PACKAGE_SOURCE_GENERATOR "ZIP")
414 # used package generators
415 set (CPACK_GENERATOR "${PACKAGE_GENERATOR}" CACHE STRING "List of binary package generators (CPack).")
416 set (CPACK_SOURCE_GENERATOR "${PACKAGE_SOURCE_GENERATOR}" CACHE STRING "List of source package generators (CPack).")
417 mark_as_advanced (CPACK_GENERATOR CPACK_SOURCE_GENERATOR)
419 # some package generators (e.g., PackageMaker) do not allow .md extension
420 configure_file ("${CMAKE_CURRENT_LIST_DIR}/README.md" "${CMAKE_CURRENT_BINARY_DIR}/README.txt" COPYONLY)
422 # common package information
423 set (CPACK_PACKAGE_VENDOR "Andreas Schuh")
424 set (CPACK_PACKAGE_CONTACT "google-gflags@googlegroups.com")
425 set (CPACK_PACKAGE_NAME "${PACKAGE_NAME}")
426 set (CPACK_PACKAGE_VERSION "${PACKAGE_VERSION}")
427 set (CPACK_PACKAGE_VERSION_MAJOR "${PACKAGE_VERSION_MAJOR}")
428 set (CPACK_PACKAGE_VERSION_MINOR "${PACKAGE_VERSION_MINOR}")
429 set (CPACK_PACKAGE_VERSION_PATCH "${PACKAGE_VERSION_PATCH}")
430 set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "A commandline flags library that allows for distributed flags.")
431 set (CPACK_RESOURCE_FILE_WELCOME "${CMAKE_CURRENT_BINARY_DIR}/README.txt")
432 set (CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_LIST_DIR}/COPYING.txt")
433 set (CPACK_PACKAGE_DESCRIPTION_FILE "${CMAKE_CURRENT_BINARY_DIR}/README.txt")
434 set (CPACK_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
435 set (CPACK_OUTPUT_FILE_PREFIX packages)
436 set (CPACK_PACKAGE_RELOCATABLE TRUE)
437 set (CPACK_MONOLITHIC_INSTALL TRUE)
439 # RPM package information -- used in cmake/package.cmake.in also for DEB
440 set (CPACK_RPM_PACKAGE_GROUP "Development/Libraries")
441 set (CPACK_RPM_PACKAGE_LICENSE "BSD")
442 set (CPACK_RPM_PACKAGE_URL "http://schuhschuh.github.com/gflags")
443 set (CPACK_RPM_CHANGELOG_FILE "${CMAKE_CURRENT_LIST_DIR}/ChangeLog.txt")
446 set (CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_LIST_DIR}/doc/index.html")
448 set (CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_LIST_DIR}/cmake/README_runtime.txt")
451 # system/architecture
454 set (CPACK_SYSTEM_NAME "win64")
456 set (CPACK_SYSTEM_NAME "win32")
458 set (CPACK_PACKAGE_ARCHITECTURE)
460 set (CPACK_PACKAGE_ARCHITECTURE darwin)
462 string (TOLOWER "${CMAKE_SYSTEM_NAME}" CPACK_SYSTEM_NAME)
463 if (CMAKE_CXX_FLAGS MATCHES "-m32")
464 set (CPACK_PACKAGE_ARCHITECTURE i386)
467 COMMAND dpkg --print-architecture
469 OUTPUT_VARIABLE CPACK_PACKAGE_ARCHITECTURE
472 string (STRIP "${CPACK_PACKAGE_ARCHITECTURE}" CPACK_PACKAGE_ARCHITECTURE)
474 execute_process (COMMAND uname -m OUTPUT_VARIABLE CPACK_PACKAGE_ARCHITECTURE)
475 if (CPACK_PACKAGE_ARCHITECTURE MATCHES "x86_64")
476 set (CPACK_PACKAGE_ARCHITECTURE amd64)
478 set (CPACK_PACKAGE_ARCHITECTURE i386)
484 # source package settings
485 set (CPACK_SOURCE_TOPLEVEL_TAG "source")
486 set (CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
487 set (CPACK_SOURCE_IGNORE_FILES "/\\\\.git/;\\\\.swp$;\\\\.#;/#;\\\\.*~;cscope\\\\.*;/[Bb]uild[.+-_a-zA-Z0-9]*/")
489 # default binary package settings
490 set (CPACK_INCLUDE_TOPLEVEL_DIRECTORY TRUE)
491 set (CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}-${CPACK_SYSTEM_NAME}")
492 if (CPACK_PACKAGE_ARCHITECTURE)
493 set (CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_FILE_NAME}-${CPACK_PACKAGE_ARCHITECTURE}")
496 # generator specific configuration file
498 # allow package maintainers to use their own configuration file
499 # $ cmake -DCPACK_PROJECT_CONFIG_FILE:FILE=/path/to/package/config
500 if (NOT CPACK_PROJECT_CONFIG_FILE)
502 "${CMAKE_CURRENT_LIST_DIR}/cmake/package.cmake.in"
503 "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-package.cmake" @ONLY
505 set (CPACK_PROJECT_CONFIG_FILE "${PROJECT_BINARY_DIR}/${PACKAGE_NAME}-package.cmake")
510 endif () # BUILD_PACKAGING