mirror of
https://github.com/microsoft/vcpkg.git
synced 2024-12-11 22:13:48 +08:00
97 lines
2.8 KiB
Diff
97 lines
2.8 KiB
Diff
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diff --git a/CMake/abslConfig.cmake.in b/CMake/abslConfig.cmake.in
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index 62d246d..00947cf 100644
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--- a/CMake/abslConfig.cmake.in
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+++ b/CMake/abslConfig.cmake.in
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@@ -6,3 +6,5 @@ find_dependency(Threads)
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@PACKAGE_INIT@
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include ("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")
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+
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+set(ABSL_USE_CXX17 @ABSL_USE_CXX17@)
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\ No newline at end of file
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diff --git a/CMakeLists.txt b/CMakeLists.txt
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index f0af6f6..927f4ed 100644
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--- a/CMakeLists.txt
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+++ b/CMakeLists.txt
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@@ -57,6 +57,23 @@ else()
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option(ABSL_ENABLE_INSTALL "Enable install rule" ON)
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endif()
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+# CXX standard
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+option(ABSL_USE_CXX17 "Enable CXX 17 standard" OFF)
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+
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+if (ABSL_USE_CXX17)
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+ set(CMAKE_CXX_STANDARD 17)
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+ set(STD_ANY 1)
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+ set(STD_OPTIONAL 1)
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+ set(STD_STRING_VIEW 1)
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+ set(STD_VARIANT 1)
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+else()
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+ set(CMAKE_CXX_STANDARD 11)
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+ set(STD_ANY 0)
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+ set(STD_OPTIONAL 0)
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+ set(STD_STRING_VIEW 0)
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+ set(STD_VARIANT 0)
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+endif()
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+
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list(APPEND CMAKE_MODULE_PATH
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${CMAKE_CURRENT_LIST_DIR}/CMake
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${CMAKE_CURRENT_LIST_DIR}/absl/copts
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diff --git a/absl/base/CMakeLists.txt b/absl/base/CMakeLists.txt
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index 9ff5aa2..315bee4 100644
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--- a/absl/base/CMakeLists.txt
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+++ b/absl/base/CMakeLists.txt
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@@ -87,6 +87,12 @@ absl_cc_library(
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absl::errno_saver
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)
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+if (NOT EXISTS ${CMAKE_CURRENT_LIST_DIR}/options.h.in)
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+ file(RENAME ${CMAKE_CURRENT_LIST_DIR}/options.h ${CMAKE_CURRENT_LIST_DIR}/options.h.in)
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+endif()
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+file(REMOVE ${CMAKE_CURRENT_LIST_DIR}/options.h)
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+configure_file(${CMAKE_CURRENT_LIST_DIR}/options.h.in ${CMAKE_CURRENT_LIST_DIR}/options.h @ONLY)
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+
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absl_cc_library(
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NAME
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config
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diff --git a/absl/base/options.h b/absl/base/options.h
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index 6a0fb07..54a9780 100644
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--- a/absl/base/options.h
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+++ b/absl/base/options.h
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@@ -100,7 +100,7 @@
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// User code should not inspect this macro. To check in the preprocessor if
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// absl::any is a typedef of std::any, use the feature macro ABSL_USES_STD_ANY.
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-#define ABSL_OPTION_USE_STD_ANY 2
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+#define ABSL_OPTION_USE_STD_ANY @STD_ANY@
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// ABSL_OPTION_USE_STD_OPTIONAL
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@@ -127,7 +127,7 @@
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// absl::optional is a typedef of std::optional, use the feature macro
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// ABSL_USES_STD_OPTIONAL.
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-#define ABSL_OPTION_USE_STD_OPTIONAL 2
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+#define ABSL_OPTION_USE_STD_OPTIONAL @STD_OPTIONAL@
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// ABSL_OPTION_USE_STD_STRING_VIEW
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@@ -154,7 +154,7 @@
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// absl::string_view is a typedef of std::string_view, use the feature macro
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// ABSL_USES_STD_STRING_VIEW.
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-#define ABSL_OPTION_USE_STD_STRING_VIEW 2
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+#define ABSL_OPTION_USE_STD_STRING_VIEW @STD_STRING_VIEW@
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// ABSL_OPTION_USE_STD_VARIANT
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//
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@@ -180,7 +180,7 @@
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// absl::variant is a typedef of std::variant, use the feature macro
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// ABSL_USES_STD_VARIANT.
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-#define ABSL_OPTION_USE_STD_VARIANT 2
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+#define ABSL_OPTION_USE_STD_VARIANT @STD_VARIANT@
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// ABSL_OPTION_USE_INLINE_NAMESPACE
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