Creation of LTS branch "lts_2018_12_18"20181200

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  - 29ff6d4860070bf8fcbd39c8805d0c32d56628a3 Removed "warning treated as error" flag from MSVC (#153) by vocaviking <vocaviking@users.noreply.github.com>
  - 083d04dd4a62ebbf037079b06e49b323c5e1192a Export of internal Abseil changes. by Abseil Team <absl-team@google.com>
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  - 92e07e5590752d6b8e67f7f2f86c6286561e8cea Merge pull request #152 from clnperez/fix-multi-defines-p... by Derek Mauro <761129+derekmauro@users.noreply.github.com>
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  - 9acad869d21731f5bc50430a33fe61cc0ffcbb0b Merge pull request #150 from OlafvdSpek/patch-2 by Jonathan Cohen <cohenjon@google.com>
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  - 44aa275286baf97fc13529aca547a88b180beb08 Merge pull request #143 from rongjiecomputer/kernel by Xiaoyi Zhang <zhangxy988@gmail.com>
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  - 16ac2ec2e38cdf47f9330a312e319d57da659c10 Merge pull request #134 from rongjiecomputer/cmake by Alex Strelnikov <strel@google.com>
  - 7efd8dc0f1075356e9c7caa950afd1ecf854e8b9 Export of internal Abseil changes. by Abseil Team <absl-team@google.com>
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GitOrigin-RevId: 44b0fafc62d9b8f192e8180cbe9c4b806b339d57
Change-Id: I2c427b5b41b2d34101922048b00f3d9dafcb498d

1 files changed, 213 insertions, 12 deletions

diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
index e4eafe49..5402bf51 100644
--- a/CMake/AbseilHelpers.cmake
+++ b/CMake/AbseilHelpers.cmake
@@ -15,6 +15,7 @@
 #
 
 include(CMakeParseArguments)
+include(AbseilConfigureCopts)
 
 # The IDE folder for Abseil that will be used if Abseil is included in a CMake
 # project that sets
@@ -48,7 +49,11 @@ function(absl_library)
 
   add_library(${_NAME} STATIC ${ABSL_LIB_SOURCES})
 
-  target_compile_options(${_NAME} PRIVATE ${ABSL_COMPILE_CXXFLAGS} ${ABSL_LIB_PRIVATE_COMPILE_FLAGS})
+  target_compile_options(${_NAME}
+    PRIVATE
+      ${ABSL_LIB_PRIVATE_COMPILE_FLAGS}
+      ${ABSL_DEFAULT_COPTS}
+  )
   target_link_libraries(${_NAME} PUBLIC ${ABSL_LIB_PUBLIC_LIBRARIES})
   target_include_directories(${_NAME}
     PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} ${ABSL_LIB_PUBLIC_INCLUDE_DIRS}
@@ -57,12 +62,199 @@ function(absl_library)
   # Add all Abseil targets to a a folder in the IDE for organization.
   set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
 
+  set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD})
+  set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON)
+
   if(ABSL_LIB_EXPORT_NAME)
     add_library(absl::${ABSL_LIB_EXPORT_NAME} ALIAS ${_NAME})
   endif()
 endfunction()
 
+# CMake function to imitate Bazel's cc_library rule.
+#
+# Parameters:
+# NAME: name of target (see Note)
+# HDRS: List of public header files for the library
+# SRCS: List of source files for the library
+# DEPS: List of other libraries to be linked in to the binary targets
+# COPTS: List of private compile options
+# DEFINES: List of public defines
+# LINKOPTS: List of link options
+# PUBLIC: Add this so that this library will be exported under absl:: (see Note).
+# Also in IDE, target will appear in Abseil folder while non PUBLIC will be in Abseil/internal.
+# TESTONLY: When added, this target will only be built if user passes -DABSL_RUN_TESTS=ON to CMake.
+#
+# Note:
+# By default, absl_cc_library will always create a library named absl_internal_${NAME},
+# and alias target absl::${NAME}.
+# This is to reduce namespace pollution.
+#
+# absl_cc_library(
+#   NAME
+#     awesome
+#   HDRS
+#     "a.h"
+#   SRCS
+#     "a.cc"
+# )
+# absl_cc_library(
+#   NAME
+#     fantastic_lib
+#   SRCS
+#     "b.cc"
+#   DEPS
+#     absl_internal_awesome # not "awesome"!
+# )
+#
+# If PUBLIC is set, absl_cc_library will instead create a target named
+# absl_${NAME} and still an alias absl::${NAME}.
+#
+# absl_cc_library(
+#   NAME
+#     main_lib
+#   ...
+#   PUBLIC
+# )
+#
+# User can then use the library as absl::main_lib (although absl_main_lib is defined too).
+#
+# TODO: Implement "ALWAYSLINK"
+function(absl_cc_library)
+  cmake_parse_arguments(ABSL_CC_LIB
+    "DISABLE_INSTALL;PUBLIC;TESTONLY"
+    "NAME"
+    "HDRS;SRCS;COPTS;DEFINES;LINKOPTS;DEPS"
+    ${ARGN}
+  )
+
+  if (NOT ABSL_CC_LIB_TESTONLY OR ABSL_RUN_TESTS)
+    if (ABSL_CC_LIB_PUBLIC)
+      set(_NAME "absl_${ABSL_CC_LIB_NAME}")
+    else()
+      set(_NAME "absl_internal_${ABSL_CC_LIB_NAME}")
+    endif()
+
+    # Check if this is a header-only library
+    if ("${ABSL_CC_LIB_SRCS}" STREQUAL "")
+      set(ABSL_CC_LIB_IS_INTERFACE 1)
+    else()
+      set(ABSL_CC_LIB_IS_INTERFACE 0)
+    endif()
+
+    if(NOT ABSL_CC_LIB_IS_INTERFACE)
+      add_library(${_NAME} STATIC "")
+      target_sources(${_NAME} PRIVATE ${ABSL_CC_LIB_SRCS} ${ABSL_CC_LIB_HDRS})
+      target_include_directories(${_NAME}
+        PUBLIC ${ABSL_COMMON_INCLUDE_DIRS})
+      target_compile_options(${_NAME}
+        PRIVATE ${ABSL_CC_LIB_COPTS})
+      target_link_libraries(${_NAME}
+        PUBLIC ${ABSL_CC_LIB_DEPS}
+        PRIVATE ${ABSL_CC_LIB_LINKOPTS}
+      )
+      target_compile_definitions(${_NAME} PUBLIC ${ABSL_CC_LIB_DEFINES})
+
+      # Add all Abseil targets to a a folder in the IDE for organization.
+      if(ABSL_CC_LIB_PUBLIC)
+        set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
+      elseif(ABSL_CC_LIB_TESTONLY)
+        set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/test)
+      else()
+        set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/internal)
+      endif()
+
+      # INTERFACE libraries can't have the CXX_STANDARD property set
+      set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD})
+      set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON)
+    else()
+      # Generating header-only library
+      add_library(${_NAME} INTERFACE)
+      target_include_directories(${_NAME}
+        INTERFACE ${ABSL_COMMON_INCLUDE_DIRS})
+      target_link_libraries(${_NAME}
+        INTERFACE ${ABSL_CC_LIB_DEPS} ${ABSL_CC_LIB_LINKOPTS}
+      )
+      target_compile_definitions(${_NAME} INTERFACE ${ABSL_CC_LIB_DEFINES})
+    endif()
+
+    add_library(absl::${ABSL_CC_LIB_NAME} ALIAS ${_NAME})
+  endif()
+endfunction()
+
+# absl_cc_test()
+#
+# CMake function to imitate Bazel's cc_test rule.
+#
+# Parameters:
+# NAME: name of target (see Usage below)
+# SRCS: List of source files for the binary
+# DEPS: List of other libraries to be linked in to the binary targets
+# COPTS: List of private compile options
+# DEFINES: List of public defines
+# LINKOPTS: List of link options
+#
+# Note:
+# By default, absl_cc_test will always create a binary named absl_${NAME}.
+# This will also add it to ctest list as absl_${NAME}.
+#
+# Usage:
+# absl_cc_library(
+#   NAME
+#     awesome
+#   HDRS
+#     "a.h"
+#   SRCS
+#     "a.cc"
+#   PUBLIC
+# )
+#
+# absl_cc_test(
+#   NAME
+#     awesome_test
+#   SRCS
+#     "awesome_test.cc"
+#   DEPS
+#     absl::awesome
+#     gmock
+#     gtest_main
+# )
+function(absl_cc_test)
+  if(NOT ABSL_RUN_TESTS)
+    return()
+  endif()
+
+  cmake_parse_arguments(ABSL_CC_TEST
+    ""
+    "NAME"
+    "SRCS;COPTS;DEFINES;LINKOPTS;DEPS"
+    ${ARGN}
+  )
 
+  set(_NAME "absl_${ABSL_CC_TEST_NAME}")
+  add_executable(${_NAME} "")
+  target_sources(${_NAME} PRIVATE ${ABSL_CC_TEST_SRCS})
+  target_include_directories(${_NAME}
+    PUBLIC ${ABSL_COMMON_INCLUDE_DIRS}
+    PRIVATE ${GMOCK_INCLUDE_DIRS} ${GTEST_INCLUDE_DIRS}
+  )
+  target_compile_definitions(${_NAME}
+    PUBLIC ${ABSL_CC_TEST_DEFINES}
+  )
+  target_compile_options(${_NAME}
+    PRIVATE ${ABSL_CC_TEST_COPTS}
+  )
+  target_link_libraries(${_NAME}
+    PUBLIC ${ABSL_CC_TEST_DEPS}
+    PRIVATE ${ABSL_CC_TEST_LINKOPTS}
+  )
+  # Add all Abseil targets to a a folder in the IDE for organization.
+  set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/test)
+
+  set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD})
+  set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON)
+
+  add_test(NAME ${_NAME} COMMAND ${_NAME})
+endfunction()
 
 #
 # header only virtual target creation
@@ -103,13 +295,15 @@ function(absl_header_library)
   # Add all Abseil targets to a a folder in the IDE for organization.
   set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
 
+  set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD})
+  set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON)
+
   if(ABSL_HO_LIB_EXPORT_NAME)
     add_library(absl::${ABSL_HO_LIB_EXPORT_NAME} ALIAS ${_NAME})
   endif()
 
 endfunction()
 
-
 #
 # create an abseil unit_test and add it to the executed test list
 #
@@ -123,7 +317,7 @@ endfunction()
 #
 # all tests will be register for execution with add_test()
 #
-# test compilation and execution is disable when BUILD_TESTING=OFF
+# test compilation and execution is disable when ABSL_RUN_TESTS=OFF
 #
 function(absl_test)
 
@@ -135,25 +329,32 @@ function(absl_test)
   )
 
 
-  if(BUILD_TESTING)
+  if(ABSL_RUN_TESTS)
 
-    set(_NAME ${ABSL_TEST_TARGET})
+    set(_NAME "absl_${ABSL_TEST_TARGET}")
     string(TOUPPER ${_NAME} _UPPER_NAME)
 
-    add_executable(${_NAME}_bin ${ABSL_TEST_SOURCES})
+    add_executable(${_NAME} ${ABSL_TEST_SOURCES})
 
-    target_compile_options(${_NAME}_bin PRIVATE ${ABSL_COMPILE_CXXFLAGS} ${ABSL_TEST_PRIVATE_COMPILE_FLAGS})
-    target_link_libraries(${_NAME}_bin PUBLIC ${ABSL_TEST_PUBLIC_LIBRARIES} ${ABSL_TEST_COMMON_LIBRARIES})
-    target_include_directories(${_NAME}_bin
+    target_compile_options(${_NAME}
+      PRIVATE
+        ${ABSL_TEST_PRIVATE_COMPILE_FLAGS}
+        ${ABSL_TEST_COPTS}
+    )
+    target_link_libraries(${_NAME} PUBLIC ${ABSL_TEST_PUBLIC_LIBRARIES} ${ABSL_TEST_COMMON_LIBRARIES})
+    target_include_directories(${_NAME}
       PUBLIC ${ABSL_COMMON_INCLUDE_DIRS} ${ABSL_TEST_PUBLIC_INCLUDE_DIRS}
       PRIVATE ${GMOCK_INCLUDE_DIRS} ${GTEST_INCLUDE_DIRS}
     )
 
     # Add all Abseil targets to a a folder in the IDE for organization.
-    set_property(TARGET ${_NAME}_bin PROPERTY FOLDER ${ABSL_IDE_FOLDER})
+    set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
+
+    set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD})
+    set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON)
 
-    add_test(${_NAME} ${_NAME}_bin)
-  endif(BUILD_TESTING)
+    add_test(NAME ${_NAME} COMMAND ${_NAME})
+  endif(ABSL_RUN_TESTS)
 
 endfunction()