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Warn if PUGIXML_STRING_VIEW is set without CMAKE_CXX_STANDARD #638

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merged 1 commit into from
Oct 26, 2024
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Warn if PUGIXML_STRING_VIEW is set without CMAKE_CXX_STANDARD #638

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6 changes: 5 additions & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@ option(PUGIXML_INSTALL "Enable installation rules" ON)
option(PUGIXML_NO_XPATH "Disable XPath" OFF)
option(PUGIXML_NO_STL "Disable STL" OFF)
option(PUGIXML_NO_EXCEPTIONS "Disable Exceptions" OFF)
option(PUGIXML_STRING_VIEW "Enable std::string_view overloads" OFF) # requires C++17 and for PUGI_NO_STL to be OFF
option(PUGIXML_STRING_VIEW "Enable std::string_view overloads" OFF) # requires C++17 and for PUGIXML_NO_STL to be OFF
mark_as_advanced(PUGIXML_NO_XPATH PUGIXML_NO_STL PUGIXML_NO_EXCEPTIONS PUGIXML_STRING_VIEW)

set(PUGIXML_PUBLIC_DEFINITIONS
Expand All @@ -66,6 +66,10 @@ if (NOT DEFINED CMAKE_MSVC_RUNTIME_LIBRARY)
MultiThreaded$<$<CONFIG:Debug>:Debug>$<$<NOT:$<BOOL:${PUGIXML_STATIC_CRT}>>:DLL>)
endif()

if (PUGIXML_STRING_VIEW AND (NOT DEFINED CMAKE_CXX_STANDARD OR CMAKE_CXX_STANDARD LESS 17))
message(WARNING "PUGIXML_STRING_VIEW requires CMAKE_CXX_STANDARD to be set to 17 or later")
endif()

if (NOT DEFINED CMAKE_CXX_STANDARD_REQUIRED)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
endif()
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