cmake_minimum_required (VERSION 3.0)

if (POLICY CMP0042)

  cmake_policy (SET CMP0042 NEW)

endif (POLICY CMP0042)

if (POLICY CMP0063)

  cmake_policy (SET CMP0063 NEW)

endif (POLICY CMP0063)

project (google-glog)

enable_testing ()

set (GLOG_MAJOR_VERSION 0)

set (GLOG_MINOR_VERSION 3)

set (GLOG_PATCH_VERSION 5)

set (GLOG_VERSION

  ${GLOG_MAJOR_VERSION}.${GLOG_MINOR_VERSION}.${GLOG_PATCH_VERSION})

set (CPACK_PACKAGE_NAME glog)

set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "")

set (CPACK_PACKAGE_VERSION_MAJOR ${GLOG_MAJOR_VERSION})

set (CPACK_PACKAGE_VERSION_MINOR ${GLOG_MINOR_VERSION})

set (CPACK_PACKAGE_VERSION_PATCH ${GLOG_PATCH_VERSION})

set (CPACK_PACKAGE_VERSION ${GLOG_VERSION})

option (WITH_GFLAGS "Use gflags" ON)

option (WITH_THREADS "Enable multithreading support" ON)

list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)

include (CheckCSourceCompiles)

include (CheckCXXCompilerFlag)

include (CheckCXXSourceCompiles)

include (CheckFunctionExists)

include (CheckIncludeFile)

include (CheckIncludeFileCXX)

include (CheckLibraryExists)

include (CheckStructHasMember)

include (CheckSymbolExists)

include (CheckTypeSize)

include (CMakePackageConfigHelpers)

include (CPack)

include (CTest)

include (DetermineGflagsNamespace)

set (CMAKE_THREAD_PREFER_PTHREAD 1)

if (WITH_GFLAGS)

  find_package (gflags)

  if (gflags_FOUND)

    set (HAVE_LIB_GFLAGS 1)

    determine_gflags_namespace (gflags_NAMESPACE)

  endif (gflags_FOUND)

endif (WITH_GFLAGS)

if (WITH_THREADS)

  find_package (Threads)

endif (WITH_THREADS)

check_include_file (dlfcn.h HAVE_DLFCN_H)

check_include_file (execinfo.h HAVE_EXECINFO_H)

check_include_file (glob.h HAVE_GLOB_H)

check_include_file (inttypes.h HAVE_INTTYPES_H)

check_include_file (libunwind.h HAVE_LIBUNWIND_H)

check_include_file (memory.h HAVE_MEMORY_H)

check_include_file (pwd.h HAVE_PWD_H)

check_include_file (stdint.h HAVE_STDINT_H)

check_include_file (stdlib.h HAVE_STDLIB_H)

check_include_file (string.h HAVE_STRING_H)

check_include_file (strings.h HAVE_STRINGS_H)

check_include_file (sys/stat.h HAVE_SYS_STAT_H)

check_include_file (sys/syscall.h HAVE_SYS_SYSCALL_H)

check_include_file (sys/time.h HAVE_SYS_TIME_H)

check_include_file (sys/types.h HAVE_SYS_TYPES_H)

check_include_file (sys/utsname.h HAVE_SYS_UTSNAME_H)

check_include_file (syscall.h HAVE_SYSCALL_H)

check_include_file (syslog.h HAVE_SYSLOG_H)

check_include_file (ucontext.h HAVE_UCONTEXT_H)

check_include_file (unistd.h HAVE_UNISTD_H)

check_include_file (unwind.h HAVE_UNWIND_H)

check_include_file_cxx ("ext/hash_map" HAVE_EXT_HASH_MAP)

check_include_file_cxx ("ext/hash_set" HAVE_EXT_HASH_SET)

check_include_file_cxx ("ext/slist" HAVE_EXT_SLIST)

check_include_file_cxx ("tr1/unordered_map" HAVE_TR1_UNORDERED_MAP)

check_include_file_cxx ("tr1/unordered_set" HAVE_TR1_UNORDERED_SET)

check_include_file_cxx ("unordered_map" HAVE_UNORDERED_MAP)

check_include_file_cxx ("unordered_set" HAVE_UNORDERED_SET)

check_type_size ("unsigned __int16" HAVE___UINT16)

check_type_size (u_int16_t HAVE_U_INT16_T)

check_type_size (uint16_t HAVE_UINT16_T)

check_function_exists (dladdr HAVE_DLADDR)

check_function_exists (fcntl HAVE_FCNTL)

check_function_exists (pread HAVE_PREAD)

check_function_exists (pwrite HAVE_PWRITE)

check_function_exists (sigaction HAVE_SIGACTION)

check_function_exists (sigaltstack HAVE_SIGALSTACK)

# NOTE gcc does not fail if you pass a non-existent -Wno-* option as an

# argument. However, it will happily fail if you pass the corresponding -W*

# option. So, we check whether options that disable warnings exist by testing

# the availability of the corresponding option that enables the warning. This

# eliminates the need to check for compiler for several (mainly Clang) options.

check_cxx_compiler_flag (-Wdeprecated HAVE_NO_DEPRECATED)

check_cxx_compiler_flag (-Wunnamed-type-template-args

    HAVE_NO_UNNAMED_TYPE_TEMPLATE_ARGS)

# NOTE: Cannot use check_function_exists here since >=vc-14.0 can define

# snprintf as an inline function

check_symbol_exists (snprintf stdio.h HAVE_SNPRINTF)

check_library_exists (unwind get_static_proc_name "" HAVE_LIB_UNWIND)

find_library (UNWIND_LIBRARY NAMES unwind DOC "unwind library")

mark_as_advanced (UNWIND_LIBRARY)

check_c_source_compiles ("

#include <stdlib.h>

static void foo(void) __attribute__ ((unused));

int main(void) { return 0; }

" HAVE___ATTRIBUTE__)

check_c_source_compiles ("

#include <stdlib.h>

static void foo(void) __attribute__ ((visibility(\"default\")));

int main(void) { return 0; }

" HAVE___ATTRIBUTE__VISIBILITY_DEFAULT)

check_c_source_compiles ("

#include <stdlib.h>

static void foo(void) __attribute__ ((visibility(\"hidden\")));

int main(void) { return 0; }

" HAVE___ATTRIBUTE__VISIBILITY_HIDDEN)

check_c_source_compiles ("

int main(void) { if (__builtin_expect(0, 0)) return 1; return 0; }

" HAVE___BUILTIN_EXPECT)

check_c_source_compiles ("

int main(void)

{

  int a; if (__sync_val_compare_and_swap(&a, 0, 1)) return 1; return 0;

}

" HAVE___SYNC_VAL_COMPARE_AND_SWAP)

check_c_source_compiles ("

#define _XOPEN_SOURCE 500

#include <pthread.h>

int main(void)

{

  pthread_rwlock_t l;

  pthread_rwlock_init(&l, NULL);

  pthread_rwlock_rdlock(&l);

  return 0;

}

" HAVE_RWLOCK)

check_c_source_compiles ("

__declspec(selectany) int a;

int main(void) { return 0; }

" HAVE___DECLSPEC)

check_cxx_source_compiles ("

#include <vector>

vector<int> t; int main() { }

" STL_NO_NAMESPACE)

check_cxx_source_compiles ("

#include <vector>

std::vector<int> t; int main() { }

" STL_STD_NAMESPACE)

check_cxx_source_compiles ("

#include <iostream>

std::ostream& operator<<(std::ostream&, struct s);

using ::operator<<;

int main() { }

" HAVE_USING_OPERATOR)

check_cxx_source_compiles ("

namespace Outer { namespace Inner { int i = 0; }}

using namespace Outer::Inner;;

int main() { return i; }

" HAVE_NAMESPACES)

set (_PC_FIELDS

  "gregs[REG_PC]"

  "gregs[REG_EIP]"

  "gregs[REG_RIP]"

  "sc_ip"

  "uc_regs->gregs[PT_NIP]"

  "gregs[R15]"

  "arm_pc"

  "mc_eip"

  "mc_rip"

  "__gregs[REG_EIP]"

  "__gregs[REG_RIP]"

  "ss.eip"

  "__ss.__eip"

  "ss.rip"

  "__ss.__rip"

  "ss.srr0"

  "__ss.__srr0"

)

set (_PC_HEADERS ucontext.h signal.h)

if (HAVE_UCONTEXT_H AND NOT PC_FROM_UCONTEXT)

  foreach (_PC_FIELD ${_PC_FIELDS})

    foreach (_PC_HEADER ${_PC_HEADERS})

      set (_TMP

      ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/uctfield.c)

      file (WRITE ${_TMP} "

#define _GNU_SOURCE 1

#include <${_PC_HEADER}>

int main(void)

{

  ucontext_t u;

  return u.${_PC_FIELD} == 0;

}

")

      try_compile (HAVE_PC_FROM_UCONTEXT ${CMAKE_CURRENT_BINARY_DIR} ${_TMP}

        COMPILE_DEFINITIONS _GNU_SOURCE=1)

      if (HAVE_PC_FROM_UCONTEXT)

        set (PC_FROM_UCONTEXT ${_PC_FIELD} CACHE)

      endif (HAVE_PC_FROM_UCONTEXT)

    endforeach (_PC_HEADER)

  endforeach (_PC_FIELD)

endif  (HAVE_UCONTEXT_H AND NOT PC_FROM_UCONTEXT)

if (STL_STD_NAMESPACE)

  set (STL_NAMESPACE std)

else (STL_STD_NAMESPACE)

  set (STL_NAMESPACE "")

endif (STL_STD_NAMESPACE)

set (GOOGLE_NAMESPACE google)

set (_START_GOOGLE_NAMESPACE_ "namespace ${GOOGLE_NAMESPACE} {")

set (_END_GOOGLE_NAMESPACE_ "}")

if (HAVE___UINT16)

  set (ac_cv_have___uint16 1)

else (HAVE___UINT16)

  set (ac_cv_have___uint16 0)

endif (HAVE___UINT16)

if (HAVE_INTTYPES_H)

  set (ac_cv_have_inttypes_h 1)

else (HAVE_INTTYPES_H)

  set (ac_cv_have_inttypes_h 0)

endif (HAVE_INTTYPES_H)

if (HAVE_LIB_GFLAGS)

  set (ac_cv_have_libgflags 1)

else (HAVE_LIB_GFLAGS)

  set (ac_cv_have_libgflags 0)

endif (HAVE_LIB_GFLAGS)

if (HAVE_STDINT_H)

  set (ac_cv_have_stdint_h 1)

else (HAVE_STDINT_H)

  set (ac_cv_have_stdint_h 0)

endif (HAVE_STDINT_H)

if (HAVE_SYS_TYPES_H)

  set (ac_cv_have_systypes_h 1)

else (HAVE_SYS_TYPES_H)

  set (ac_cv_have_systypes_h 0)

endif (HAVE_SYS_TYPES_H)

if (HAVE_U_INT16_T)

  set (ac_cv_have_u_int16_t 1)

else (HAVE_U_INT16_T)

  set (ac_cv_have_u_int16_t 0)

endif (HAVE_U_INT16_T)

if (HAVE_UINT16_T)

  set (ac_cv_have_uint16_t 1)

else (HAVE_UINT16_T)

  set (ac_cv_have_uint16_t 0)

endif (HAVE_UINT16_T)

if (HAVE_UNISTD_H)

  set (ac_cv_have_unistd_h 1)

else (HAVE_UNISTD_H)

  set (ac_cv_have_unistd_h 0)

endif (HAVE_UNISTD_H)

set (ac_google_namespace ${GOOGLE_NAMESPACE})

set (ac_google_end_namespace ${_END_GOOGLE_NAMESPACE_})

set (ac_google_start_namespace ${_START_GOOGLE_NAMESPACE_})

if (HAVE___ATTRIBUTE__)

  set (ac_cv___attribute___noreturn "__attribute__((noreturn))")

  set (ac_cv___attribute___noinline "__attribute__((noinline))")

elseif (HAVE___DECLSPEC)

  set (ac_cv___attribute___noreturn "__declspec(noreturn)")

  #set (ac_cv___attribute___noinline "__declspec(noinline)")

endif (HAVE___ATTRIBUTE__)

if (HAVE___BUILTIN_EXPECT)

  set (ac_cv_have___builtin_expect 1)

else (HAVE___BUILTIN_EXPECT)

  set (ac_cv_have___builtin_expect 0)

endif (HAVE___BUILTIN_EXPECT)

if (HAVE_USING_OPERATOR)

  set (ac_cv_cxx_using_operator 1)

else (HAVE_USING_OPERATOR)

  set (ac_cv_cxx_using_operator 0)

endif (HAVE_USING_OPERATOR)

set (SIZEOF_VOID_P ${CMAKE_SIZEOF_VOID_P})

if (WITH_THREADS AND Threads_FOUND)

  if (CMAKE_USE_PTHREADS_INIT)

    set (HAVE_PTHREAD 1)

  endif (CMAKE_USE_PTHREADS_INIT)

else (WITH_THREADS AND Threads_FOUND)

  set (NO_THREADS 1)

endif (WITH_THREADS AND Threads_FOUND)

set (TEST_SRC_DIR \"${CMAKE_CURRENT_SOURCE_DIR}\")

configure_file (src/config.h.cmake.in config.h)

configure_file (src/glog/logging.h.in glog/logging.h @ONLY)

configure_file (src/glog/raw_logging.h.in glog/raw_logging.h @ONLY)

configure_file (src/glog/stl_logging.h.in glog/stl_logging.h @ONLY)

configure_file (src/glog/vlog_is_on.h.in glog/vlog_is_on.h @ONLY)

set (CMAKE_CXX_VISIBILITY_PRESET default)

set (CMAKE_VISIBILITY_INLINES_HIDDEN 1)

set (GLOG_PUBLIC_H

  ${CMAKE_CURRENT_BINARY_DIR}/config.h

  ${CMAKE_CURRENT_BINARY_DIR}/glog/logging.h

  ${CMAKE_CURRENT_BINARY_DIR}/glog/raw_logging.h

  ${CMAKE_CURRENT_BINARY_DIR}/glog/stl_logging.h

  ${CMAKE_CURRENT_BINARY_DIR}/glog/vlog_is_on.h

  src/glog/log_severity.h

)

set (GLOG_SRCS

  ${GLOG_PUBLIC_H}

  src/base/commandlineflags.h

  src/base/googleinit.h

  src/base/mutex.h

  src/demangle.cc

  src/demangle.h

  src/logging.cc

  src/raw_logging.cc

  src/symbolize.cc

  src/symbolize.h

  src/utilities.cc

  src/utilities.h

  src/vlog_is_on.cc

)

if (HAVE_PTHREAD)

  list (APPEND GLOG_SRCS src/signalhandler.cc)

endif (HAVE_PTHREAD)

if (WIN32)

  list (APPEND GLOG_SRCS

    src/windows/port.cc

    src/windows/port.h

  )

endif (WIN32)

add_compile_options ($<$<BOOL:${HAVE_NO_UNNAMED_TYPE_TEMPLATE_ARGS}>:-Wno-unnamed-type-template-args>)

add_library (glog

  ${GLOG_SRCS}

)

set_target_properties (glog PROPERTIES POSITION_INDEPENDENT_CODE ON)

if (UNWIND_LIBRARY)

  target_link_libraries (glog PUBLIC ${UNWIND_LIBRARY})

endif (UNWIND_LIBRARY)

if (HAVE_PTHREAD)

  target_link_libraries (glog PUBLIC ${CMAKE_THREAD_LIBS_INIT})

endif (HAVE_PTHREAD)

if (WIN32 AND HAVE_SNPRINTF)

  set_property (SOURCE src/windows/port.cc APPEND PROPERTY COMPILE_DEFINITIONS

    HAVE_SNPRINTF)

endif (WIN32 AND HAVE_SNPRINTF)

if (gflags_FOUND)

  target_include_directories (glog PUBLIC $<BUILD_INTERFACE:${gflags_INCLUDE_DIR}>)

  target_link_libraries (glog PUBLIC ${gflags_LIBRARIES})

  if (NOT BUILD_SHARED_LIBS)

    # Don't use __declspec(dllexport|dllimport) if this is a static build

    targeT_compile_definitions (glog PUBLIC GFLAGS_DLL_DECLARE_FLAG= GFLAGS_DLL_DEFINE_FLAG=)

  endif (NOT BUILD_SHARED_LIBS)

endif (gflags_FOUND)

set_target_properties (glog PROPERTIES VERSION ${GLOG_MAJOR_VERSION})

set_target_properties (glog PROPERTIES SOVERSION ${GLOG_VERSION})

if (WIN32)

  target_compile_definitions (glog PUBLIC GLOG_NO_ABBREVIATED_SEVERITIES)

endif (WIN32)

set_target_properties (glog PROPERTIES PUBLIC_HEADER "${GLOG_PUBLIC_H}")

target_include_directories (glog BEFORE PUBLIC

  "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>"

  "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>"

  "$<INSTALL_INTERFACE:include>"

  PRIVATE ${CMAKE_CURRENT_BINARY_DIR}

  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)

if (WIN32)

  target_include_directories (glog PUBLIC

    "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src/windows>"

    PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src/windows)

endif (WIN32)

set_target_properties (glog PROPERTIES DEFINE_SYMBOL LIBGLOG_EXPORTS)

if (NOT BUILD_SHARED_LIBS)

  target_compile_definitions (glog PUBLIC GOOGLE_GLOG_DLL_DECL=)

else (NOT BUILD_SHARED_LIBS)

  target_compile_definitions (glog PRIVATE GOOGLE_GLOG_IS_A_DLL=1)

  if (HAVE___ATTRIBUTE__VISIBILITY_DEFAULT)

    set (_EXPORT "__attribute__((visibility(\"default\")))")

    set (_IMPORT "")

  elseif (HAVE___DECLSPEC)

    set (_EXPORT "__declspec(dllexport)")

    set (_IMPORT "__declspec(dllimport)")

  endif (HAVE___ATTRIBUTE__VISIBILITY_DEFAULT)

  target_compile_definitions (glog PRIVATE

    "GOOGLE_GLOG_DLL_DECL=${_EXPORT}")

  target_compile_definitions (glog INTERFACE

    "GOOGLE_GLOG_DLL_DECL=${_IMPORT}")

  target_compile_definitions (glog INTERFACE

    "GOOGLE_GLOG_DLL_DECL_FOR_UNITTESTS=${_IMPORT}")

endif (NOT BUILD_SHARED_LIBS)

if (HAVE_EXECINFO_H)

  set (HAVE_STACKTRACE 1)

endif (HAVE_EXECINFO_H)

if (UNIX OR (APPLE AND HAVE_DLADDR))

  set (HAVE_SYMBOLIZE 1)

endif (UNIX OR (APPLE AND HAVE_DLADDR))

# Unit testing

if (BUILD_TESTING)

  add_executable (logging_unittest

    src/logging_unittest.cc

  )

  target_link_libraries (logging_unittest PRIVATE glog)

  add_executable (stl_logging_unittest

    src/stl_logging_unittest.cc

  )

  target_link_libraries (stl_logging_unittest PRIVATE glog)

  if (HAVE_NO_DEPRECATED)

    set_property (TARGET stl_logging_unittest APPEND PROPERTY COMPILE_OPTIONS

      -Wno-deprecated)

  endif (HAVE_NO_DEPRECATED)

  if (HAVE_UNORDERED_MAP AND HAVE_UNORDERED_SET)

    target_compile_definitions (stl_logging_unittest PRIVATE

      GLOG_STL_LOGGING_FOR_UNORDERED)

  endif (HAVE_UNORDERED_MAP AND HAVE_UNORDERED_SET)

  if (HAVE_TR1_UNORDERED_MAP AND HAVE_TR1_UNORDERED_SET)

    target_compile_definitions (stl_logging_unittest PRIVATE

      GLOG_STL_LOGGING_FOR_TR1_UNORDERED)

  endif (HAVE_TR1_UNORDERED_MAP AND HAVE_TR1_UNORDERED_SET)

  if (HAVE_EXT_HASH_MAP AND HAVE_EXT_HASH_SET)

    target_compile_definitions (stl_logging_unittest PRIVATE

      GLOG_STL_LOGGING_FOR_EXT_HASH)

  endif (HAVE_EXT_HASH_MAP AND HAVE_EXT_HASH_SET)

  if (HAVE_EXT_SLIST)

    target_compile_definitions (stl_logging_unittest PRIVATE

      GLOG_STL_LOGGING_FOR_EXT_SLIST)

  endif (HAVE_EXT_SLIST)

  if (HAVE_SYMBOLIZE)

    add_executable (symbolize_unittest

      src/symbolize_unittest.cc

    )

    target_link_libraries (symbolize_unittest PRIVATE glog)

  endif (HAVE_SYMBOLIZE)

  add_executable (demangle_unittest

    src/demangle_unittest.cc

  )

  target_link_libraries (demangle_unittest PRIVATE glog)

  if (HAVE_STACKTRACE)

    add_executable (stacktrace_unittest

      src/stacktrace_unittest.cc

    )

    target_link_libraries (stacktrace_unittest PRIVATE glog)

  endif (HAVE_STACKTRACE)

  add_executable (utilities_unittest

    src/utilities_unittest.cc

  )

  target_link_libraries (utilities_unittest PRIVATE glog)

  if (HAVE_STACKTRACE AND HAVE_SYMBOLIZE)

    add_executable (signalhandler_unittest

      src/signalhandler_unittest.cc

    )

    target_link_libraries (signalhandler_unittest PRIVATE glog)

  endif (HAVE_STACKTRACE AND HAVE_SYMBOLIZE)

  add_test (NAME demangle COMMAND demangle_unittest)

  add_test (NAME logging COMMAND logging_unittest)

  if (TARGET signalhandler_unittest)

    add_test (NAME signalhandler COMMAND signalhandler_unittest)

  endif (TARGET signalhandler_unittest)

  if (TARGET stacktrace_unittest)

    add_test (NAME stacktrace COMMAND stacktrace_unittest)

  endif (TARGET stacktrace_unittest)

  add_test (NAME stl_logging COMMAND stl_logging_unittest)

  if (TARGET symbolize_unittest)

    add_test (NAME symbolize COMMAND symbolize_unittest)

  endif (TARGET symbolize_unittest)

endif (BUILD_TESTING)

install (TARGETS glog

  EXPORT glog-targets

  RUNTIME DESTINATION bin

  PUBLIC_HEADER DESTINATION include/glog

  LIBRARY DESTINATION lib

  ARCHIVE DESTINATION lib)

if (gflags_FOUND)

  set (gflags_DEPENDENCY "find_dependency (gflags ${gflags_VERSION})")

endif (gflags_FOUND)

configure_package_config_file (glog-config.cmake.in

  ${CMAKE_CURRENT_BINARY_DIR}/glog-config.cmake

  INSTALL_DESTINATION lib/cmake/glog

  NO_CHECK_REQUIRED_COMPONENTS_MACRO)

write_basic_package_version_file (glog-config-version.cmake VERSION

  ${GLOG_VERSION} COMPATIBILITY SameMajorVersion)

export (TARGETS glog NAMESPACE glog:: FILE glog-targets.cmake)

export (PACKAGE glog)

install (FILES

  ${CMAKE_CURRENT_BINARY_DIR}/glog-config.cmake

  ${CMAKE_CURRENT_BINARY_DIR}/glog-config-version.cmake

  DESTINATION lib/cmake/glog)

install (EXPORT glog-targets NAMESPACE glog:: DESTINATION lib/cmake/glog)