merge(3p/glog): Vendor glog from commit 'afe04691' r/863

1 files changed, 848 insertions, 0 deletions

diff --git a/third_party/glog/CMakeLists.txt b/third_party/glog/CMakeLists.txt
new file mode 100644
index 000000000000..79b4d9ed61c9
--- /dev/null
+++ b/third_party/glog/CMakeLists.txt
@@ -0,0 +1,848 @@
+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(glog VERSION 0.4.0 LANGUAGES C CXX)
+
+set (CPACK_PACKAGE_NAME glog)
+set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "")
+set (CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
+set (CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
+set (CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
+set (CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
+
+option (WITH_GFLAGS "Use gflags" ON)
+option (WITH_THREADS "Enable multithreading support" ON)
+option (WITH_TLS "Enable Thread Local Storage (TLS) support" ON)
+option (BUILD_SHARED_LIBS "Build shared libraries" OFF)
+option (PRINT_UNSYMBOLIZED_STACK_TRACES
+  "Print file offsets in traces instead of symbolizing" OFF)
+option (WITH_PKGCONFIG "Enable pkg-config support" ON)
+option (WITH_UNWIND "Enable libunwind support" ON)
+option (WITH_SYMBOLIZE "Enable symbolize module" ON)
+
+if (NOT WITH_UNWIND)
+  set (CMAKE_DISABLE_FIND_PACKAGE_Unwind ON)
+endif (NOT WITH_UNWIND)
+
+if (NOT WITH_THREADS)
+  set (CMAKE_DISABLE_FIND_PACKAGE_Threads ON)
+endif (NOT WITH_THREADS)
+
+list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
+
+include (CheckCSourceCompiles)
+include (CheckCXXCompilerFlag)
+include (CheckCXXSourceCompiles)
+include (CheckCXXSourceRuns)
+include (CheckFunctionExists)
+include (CheckIncludeFile)
+include (CheckIncludeFileCXX)
+include (CheckLibraryExists)
+include (CheckStructHasMember)
+include (CheckSymbolExists)
+include (CheckTypeSize)
+include (CMakePackageConfigHelpers)
+include (CMakePushCheckState)
+include (CPack)
+include (CTest)
+include (DetermineGflagsNamespace)
+include (GetCacheVariables)
+include (GNUInstallDirs)
+
+set (CMAKE_DEBUG_POSTFIX d)
+set (CMAKE_THREAD_PREFER_PTHREAD 1)
+
+if (WITH_GFLAGS)
+  find_package (gflags 2.2.0)
+
+  if (gflags_FOUND)
+    set (HAVE_LIB_GFLAGS 1)
+    determine_gflags_namespace (gflags_NAMESPACE)
+  endif (gflags_FOUND)
+endif (WITH_GFLAGS)
+
+find_package (Threads)
+find_package (Unwind)
+
+if (Unwind_FOUND)
+  set (HAVE_LIB_UNWIND 1)
+  set (HAVE_UNWIND_H 1)
+endif (Unwind_FOUND)
+
+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 (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 (sys/wait.h HAVE_SYS_WAIT_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 (pwd.h HAVE_PWD_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 (dbghelp UnDecorateSymbolName "" HAVE_DBGHELP)
+
+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)
+
+check_cxx_source_compiles ("
+__thread int tls;
+int main() { }
+" HAVE_GCC_TLS)
+
+check_cxx_source_compiles ("
+__declspec(thread) int tls;
+int main() { }
+" HAVE_MSVC_TLS)
+
+check_cxx_source_compiles ("
+thread_local int tls;
+int main() { }
+" HAVE_CXX11_TLS)
+
+check_cxx_source_compiles ("
+#include <type_traits>
+std::aligned_storage<sizeof(char), alignof(char)>::type data;
+int main() { }
+" HAVE_ALIGNED_STORAGE)
+
+if (WITH_TLS)
+  # Cygwin does not support the thread attribute. Don't bother.
+  if (HAVE_GCC_TLS)
+    set (GLOG_THREAD_LOCAL_STORAGE "__thread")
+  elseif (HAVE_MSVC_TLS)
+    set (GLOG_THREAD_LOCAL_STORAGE "__declspec(thread)")
+  elseif (HAVE_CXX11_TLS)
+    set (GLOG_THREAD_LOCAL_STORAGE thread_local)
+  endif (HAVE_GCC_TLS)
+endif (WITH_TLS)
+
+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)
+
+if (HAVE_EXECINFO_H)
+  set (HAVE_STACKTRACE 1)
+endif (HAVE_EXECINFO_H)
+
+if (WITH_SYMBOLIZE)
+  if (WIN32 OR CYGWIN)
+    cmake_push_check_state (RESET)
+    set (CMAKE_REQUIRED_LIBRARIES DbgHelp)
+
+    check_cxx_source_runs ([=[
+    #include <windows.h>
+    #include <dbghelp.h>
+    #include <cstdlib>
+
+    void foobar() { }
+
+    int main()
+    {
+        HANDLE process = GetCurrentProcess();
+
+        if (!SymInitialize(process, NULL, TRUE))
+            return EXIT_FAILURE;
+
+        char buf[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
+        SYMBOL_INFO *symbol = reinterpret_cast<SYMBOL_INFO *>(buf);
+        symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
+        symbol->MaxNameLen = MAX_SYM_NAME;
+
+        void* const pc = reinterpret_cast<void*>(&foobar);
+        BOOL ret = SymFromAddr(process, reinterpret_cast<DWORD64>(pc), 0, symbol);
+
+        return ret ? EXIT_SUCCESS : EXIT_FAILURE;
+    }
+    ]=] HAVE_SYMBOLIZE)
+
+  cmake_pop_check_state ()
+
+    if (HAVE_SYMBOLIZE)
+      set (HAVE_STACKTRACE 1)
+    endif (HAVE_SYMBOLIZE)
+  elseif (UNIX OR (APPLE AND HAVE_DLADDR))
+    set (HAVE_SYMBOLIZE 1)
+  endif (WIN32 OR CYGWIN)
+endif (WITH_SYMBOLIZE)
+
+check_cxx_source_compiles ("
+#include <cstdlib>
+#include <time.h>
+int main()
+{
+    time_t timep;
+    struct tm result;
+    localtime_r(&timep, &result);
+    return EXIT_SUCCESS;
+}
+" HAVE_LOCALTIME_R)
+
+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)
+if (WITH_PKGCONFIG)
+  set (VERSION ${PROJECT_VERSION})
+  set (prefix ${CMAKE_INSTALL_PREFIX})
+  set (exec_prefix ${CMAKE_INSTALL_FULL_BINDIR})
+  set (libdir ${CMAKE_INSTALL_FULL_LIBDIR})
+  set (includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
+
+  configure_file (
+    "${PROJECT_SOURCE_DIR}/libglog.pc.in"
+    "${PROJECT_BINARY_DIR}/libglog.pc"
+    @ONLY
+  )
+
+  unset (VERSION)
+  unset (prefix)
+  unset (exec_prefix)
+  unset (libdir)
+  unset (includedir)
+endif (WITH_PKGCONFIG)
+
+set (CMAKE_CXX_VISIBILITY_PRESET default)
+set (CMAKE_VISIBILITY_INLINES_HIDDEN 1)
+
+set (GLOG_PUBLIC_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
+  ${GLOG_PUBLIC_H}
+  src/base/commandlineflags.h
+  src/base/googleinit.h
+  src/base/mutex.h
+  src/demangle.cc
+  src/demangle.h
+  src/logging.cc
+  src/raw_logging.cc
+  src/symbolize.cc
+  src/symbolize.h
+  src/utilities.cc
+  src/utilities.h
+  src/vlog_is_on.cc
+)
+
+if (HAVE_PTHREAD OR WIN32)
+  list (APPEND GLOG_SRCS src/signalhandler.cc)
+endif (HAVE_PTHREAD OR WIN32)
+
+if (WIN32)
+  list (APPEND GLOG_SRCS
+    src/windows/port.cc
+    src/windows/port.h
+  )
+endif (WIN32)
+
+add_compile_options ($<$<AND:$<BOOL:${HAVE_NO_UNNAMED_TYPE_TEMPLATE_ARGS}>,$<NOT:$<CXX_COMPILER_ID:GNU>>>:-Wno-unnamed-type-template-args>)
+
+set (_glog_CMake_BINDIR ${CMAKE_INSTALL_BINDIR})
+set (_glog_CMake_INCLUDE_DIR ${CMAKE_INSTALL_INCLUDEDIR})
+set (_glog_CMake_LIBDIR ${CMAKE_INSTALL_LIBDIR})
+set (_glog_CMake_INSTALLDIR ${_glog_CMake_LIBDIR}/cmake/glog)
+
+set (_glog_CMake_DIR glog/cmake)
+set (_glog_CMake_DATADIR ${CMAKE_INSTALL_DATAROOTDIR}/${_glog_CMake_DIR})
+set (_glog_BINARY_CMake_DATADIR
+  ${CMAKE_CURRENT_BINARY_DIR}/${_glog_CMake_DATADIR})
+
+# Add additional CMake find modules here.
+set (_glog_CMake_MODULES)
+
+if (Unwind_FOUND)
+  # Copy the module only if libunwind is actually used.
+  list (APPEND _glog_CMake_MODULES ${CMAKE_CURRENT_SOURCE_DIR}/cmake/FindUnwind.cmake)
+endif (Unwind_FOUND)
+
+# Generate file name for each module in the binary directory
+foreach (_file ${_glog_CMake_MODULES})
+  get_filename_component (_module "${_file}" NAME)
+
+  list (APPEND _glog_BINARY_CMake_MODULES
+    ${_glog_BINARY_CMake_DATADIR}/${_module})
+endforeach (_file)
+
+if (_glog_CMake_MODULES)
+  # Copy modules to binary directory during the build
+  add_custom_command (OUTPUT ${_glog_BINARY_CMake_MODULES}
+    COMMAND ${CMAKE_COMMAND} -E make_directory
+    ${_glog_BINARY_CMake_DATADIR}
+    COMMAND ${CMAKE_COMMAND} -E copy ${_glog_CMake_MODULES}
+    ${_glog_BINARY_CMake_DATADIR}
+    DEPENDS ${_glog_CMake_MODULES}
+    COMMENT "Copying find modules..."
+  )
+endif (_glog_CMake_MODULES)
+
+add_library (glog
+  ${GLOG_SRCS}
+  ${_glog_BINARY_CMake_MODULES}
+)
+
+add_library(glog::glog ALIAS glog)
+
+set_target_properties (glog PROPERTIES POSITION_INDEPENDENT_CODE ON)
+
+if (Unwind_FOUND)
+  target_link_libraries (glog PUBLIC unwind::unwind)
+  set (Unwind_DEPENDENCY "find_dependency (Unwind ${Unwind_VERSION})")
+endif (Unwind_FOUND)
+
+if (HAVE_DBGHELP)
+   target_link_libraries (glog PUBLIC dbghelp)
+endif (HAVE_DBGHELP)
+
+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_link_libraries (glog PUBLIC gflags)
+
+  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 ${PROJECT_VERSION})
+set_target_properties (glog PROPERTIES SOVERSION ${PROJECT_VERSION_MAJOR})
+
+if (WIN32)
+  target_compile_definitions (glog PUBLIC GLOG_NO_ABBREVIATED_SEVERITIES)
+endif (WIN32)
+
+set_target_properties (glog PROPERTIES PUBLIC_HEADER "${GLOG_PUBLIC_H}")
+
+target_include_directories (glog BEFORE PUBLIC
+  "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>"
+  "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>"
+  "$<INSTALL_INTERFACE:${_glog_CMake_INCLUDE_DIR}>"
+  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 ${CMAKE_CURRENT_SOURCE_DIR}/src/windows)
+endif (WIN32)
+
+set_target_properties (glog PROPERTIES DEFINE_SYMBOL LIBGLOG_EXPORTS)
+
+if (NOT BUILD_SHARED_LIBS)
+  target_compile_definitions (glog PUBLIC GOOGLE_GLOG_DLL_DECL=)
+else (NOT BUILD_SHARED_LIBS)
+  target_compile_definitions (glog PRIVATE GOOGLE_GLOG_IS_A_DLL=1)
+
+  if (HAVE___DECLSPEC)
+    set (_EXPORT "__declspec(dllexport)")
+    set (_IMPORT "__declspec(dllimport)")
+  elseif (HAVE___ATTRIBUTE__VISIBILITY_DEFAULT)
+    set (_EXPORT "__attribute__((visibility(\"default\")))")
+    set (_IMPORT "")
+  endif (HAVE___DECLSPEC)
+
+  target_compile_definitions (glog PRIVATE
+    "GOOGLE_GLOG_DLL_DECL=${_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)
+
+# 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)
+    set_tests_properties(stacktrace PROPERTIES TIMEOUT 30)
+  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)
+
+  # Generate an initial cache
+
+  get_cache_variables (_CACHEVARS EXCLUDE CMAKE_MAKE_PROGRAM)
+
+  set (_INITIAL_CACHE
+    ${CMAKE_CURRENT_BINARY_DIR}/test_package_config/glog_package_config_initial_cache.cmake)
+
+  # Package config test
+
+  add_test (NAME cmake_package_config_init COMMAND ${CMAKE_COMMAND}
+    -DTEST_BINARY_DIR=${CMAKE_CURRENT_BINARY_DIR}/test_package_config
+    -DINITIAL_CACHE=${_INITIAL_CACHE}
+    -DCACHEVARS=${_CACHEVARS}
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestInitPackageConfig.cmake
+  )
+
+  add_test (NAME cmake_package_config_generate COMMAND ${CMAKE_COMMAND}
+    -DPATH=$ENV{PATH}
+    -DINITIAL_CACHE=${_INITIAL_CACHE}
+    -DTEST_BINARY_DIR=${CMAKE_CURRENT_BINARY_DIR}/test_package_config/working_config
+    -DSOURCE_DIR=${CMAKE_CURRENT_SOURCE_DIR}/src/package_config_unittest/working_config
+    -DPACKAGE_DIR=${CMAKE_CURRENT_BINARY_DIR}
+    -DGENERATOR=${CMAKE_GENERATOR}
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestPackageConfig.cmake
+  )
+
+  add_test (NAME cmake_package_config_build COMMAND
+    ${CMAKE_COMMAND} --build ${CMAKE_CURRENT_BINARY_DIR}/test_package_config/working_config
+  )
+
+  add_test (NAME cmake_package_config_cleanup COMMAND ${CMAKE_COMMAND} -E
+    remove_directory
+    ${CMAKE_CURRENT_BINARY_DIR}/test_package_config
+  )
+
+  # Fixtures setup
+  set_tests_properties (cmake_package_config_init PROPERTIES FIXTURES_SETUP
+    cmake_package_config)
+  set_tests_properties (cmake_package_config_generate PROPERTIES FIXTURES_SETUP
+    cmake_package_config_working)
+
+  # Fixtures cleanup
+  set_tests_properties (cmake_package_config_cleanup PROPERTIES FIXTURES_CLEANUP
+    cmake_package_config)
+
+  # Fixture requirements
+  set_tests_properties (cmake_package_config_generate PROPERTIES
+    FIXTURES_REQUIRED cmake_package_config)
+  set_tests_properties (cmake_package_config_build PROPERTIES
+    FIXTURES_REQUIRED "cmake_package_config;cmake_package_config_working")
+endif (BUILD_TESTING)
+
+install (TARGETS glog
+  EXPORT glog-targets
+  RUNTIME DESTINATION ${_glog_CMake_BINDIR}
+  PUBLIC_HEADER DESTINATION ${_glog_CMake_INCLUDE_DIR}/glog
+  LIBRARY DESTINATION ${_glog_CMake_LIBDIR}
+  ARCHIVE DESTINATION ${_glog_CMake_LIBDIR})
+
+if (WITH_PKGCONFIG)
+  install (
+    FILES "${PROJECT_BINARY_DIR}/libglog.pc"
+    DESTINATION "${_glog_CMake_LIBDIR}/pkgconfig"
+  )
+endif (WITH_PKGCONFIG)
+
+set (glog_CMake_VERSION 3.0)
+
+if (gflags_FOUND)
+  # Ensure clients locate only the package config and not third party find
+  # modules having the same name. This avoid cmake_policy PUSH/POP errors.
+  if (CMAKE_VERSION VERSION_LESS 3.9)
+    set (gflags_DEPENDENCY "find_dependency (gflags ${gflags_VERSION})")
+  else (CMAKE_VERSION VERSION_LESS 3.9)
+    # Passing additional find_package arguments to find_dependency is possible
+    # starting with CMake 3.9.
+    set (glog_CMake_VERSION 3.9)
+    set (gflags_DEPENDENCY "find_dependency (gflags ${gflags_VERSION} NO_MODULE)")
+  endif (CMAKE_VERSION VERSION_LESS 3.9)
+endif (gflags_FOUND)
+
+configure_package_config_file (glog-config.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-config.cmake
+  INSTALL_DESTINATION ${_glog_CMake_INSTALLDIR}
+  NO_CHECK_REQUIRED_COMPONENTS_MACRO)
+
+write_basic_package_version_file (glog-config-version.cmake VERSION
+  ${PROJECT_VERSION} COMPATIBILITY SameMajorVersion)
+
+export (TARGETS glog NAMESPACE glog:: FILE glog-targets.cmake)
+export (PACKAGE glog)
+
+get_filename_component (_PREFIX "${CMAKE_INSTALL_PREFIX}" ABSOLUTE)
+
+# Directory containing the find modules relative to the config install
+# directory.
+file (RELATIVE_PATH glog_REL_CMake_MODULES
+  ${_PREFIX}/${_glog_CMake_INSTALLDIR}
+  ${_PREFIX}/${_glog_CMake_DATADIR}/glog-modules.cmake)
+
+get_filename_component (glog_REL_CMake_DATADIR ${glog_REL_CMake_MODULES}
+  DIRECTORY)
+
+set (glog_FULL_CMake_DATADIR
+  ${CMAKE_CURRENT_BINARY_DIR}/${_glog_CMake_DATADIR})
+
+configure_file (glog-modules.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-modules.cmake @ONLY)
+
+install (CODE
+"
+set (glog_FULL_CMake_DATADIR \"\\\${CMAKE_CURRENT_LIST_DIR}/${glog_REL_CMake_DATADIR}\")
+configure_file (${CMAKE_CURRENT_SOURCE_DIR}/glog-modules.cmake.in
+  \"${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/glog-modules.cmake\" @ONLY)
+file (INSTALL
+  \"${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/glog-modules.cmake\"
+  DESTINATION
+  \"\${CMAKE_INSTALL_PREFIX}/${_glog_CMake_INSTALLDIR}\")
+"
+  COMPONENT Development
+)
+
+install (FILES
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-config.cmake
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-config-version.cmake
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-modules.cmake
+  DESTINATION ${_glog_CMake_INSTALLDIR})
+
+# Find modules in share/glog/cmake
+install (DIRECTORY ${_glog_BINARY_CMake_DATADIR}
+  DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/glog
+  COMPONENT Development
+  FILES_MATCHING PATTERN "*.cmake"
+)
+
+install (EXPORT glog-targets NAMESPACE glog:: DESTINATION
+  ${_glog_CMake_INSTALLDIR})