[Webkit-unassigned] [Bug 162056] New: REGRESSION(r206000): [GTK] Build broken with GCC < 5

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=162056

            Bug ID: 162056
           Summary: REGRESSION(r206000): [GTK] Build broken with GCC < 5
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: andersca at apple.com, beidson at apple.com,
                    bugs-noreply at webkitgtk.org

Changes introduced in r206000 are not supported by GCC 4.9. We need to find a workaround or simply bump GCC requirements to 5.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60511

In file included from ../../Source/WebKit2/Platform/IPC/Decoder.h:31:0,
                 from ../../Source/WebKit2/NetworkProcess/Downloads/DownloadID.h:30,
                 from ../../Source/WebKit2/NetworkProcess/NetworkSession.h:34,
                 from ../../Source/WebKit2/Shared/Authentication/AuthenticationManager.h:31,
                 from ../../Source/WebKit2/WebProcess/WebCoreSupport/WebFrameLoaderClient.cpp:29:
../../Source/WTF/wtf/EnumTraits.h: In instantiation of ‘static constexpr bool WTF::EnumValueChecker<T, WTF::EnumValues<E, e, es ...> >::isValidEnum(T) [with T = long unsigned int; E = WebCore::HasInsecureContent; E e = (WebCore::HasInsecureContent)0; E ...es = {}]’:
../../Source/WTF/wtf/EnumTraits.h:45:72:   required from ‘static constexpr bool WTF::EnumValueChecker<T, WTF::EnumValues<E, e, es ...> >::isValidEnum(T) [with T = long unsigned int; E = WebCore::HasInsecureContent; E e = (WebCore::HasInsecureContent)1; E ...es = {(WebCore::HasInsecureContent)0}]’
../../Source/WTF/wtf/EnumTraits.h:62:78:   required from ‘constexpr std::enable_if_t<std::is_enum<_Tp>::value, bool> WTF::isValidEnum(T) [with E = WebCore::HasInsecureContent; T = long unsigned int; std::enable_if_t<std::is_enum<_Tp>::value, bool> = bool]’
../../Source/WebKit2/Platform/IPC/Decoder.h:93:34:   required from ‘std::enable_if_t<std::is_enum<_Tp>::value, bool> IPC::Decoder::decode(E&) [with E = WebCore::HasInsecureContent; std::enable_if_t<std::is_enum<_Tp>::value, bool> = bool]’
../../Source/WebKit2/Platform/IPC/ArgumentCoders.h:135:13:   required from ‘static bool IPC::TupleCoder<index, Elements>::decode(IPC::Decoder&, std::tuple<_Elements ...>&) [with long unsigned int index = 1ul; Elements = {WebCore::HasInsecureContent&}]’
../../Source/WebKit2/Platform/IPC/ArgumentCoders.h:161:83:   required from ‘static bool IPC::ArgumentCoder<std::tuple<_Elements ...> >::decode(IPC::Decoder&, std::tuple<_Elements ...>&) [with Elements = {WebCore::HasInsecureContent&}]’
../../Source/WebKit2/Platform/IPC/Decoder.h:126:49:   required from ‘std::enable_if_t<(! std::is_enum<_Tp>::value), bool> IPC::Decoder::decode(T&) [with T = std::tuple<WebCore::HasInsecureContent&>; std::enable_if_t<(! std::is_enum<_Tp>::value), bool> = bool]’
../../Source/WebKit2/Platform/IPC/Connection.h:389:38:   required from ‘bool IPC::Connection::sendSync(T&&, typename T::Reply&&, uint64_t, std::chrono::milliseconds, WTF::OptionSet<IPC::SendSyncOption>) [with T = Messages::WebPageProxy::HasInsecureContent; typename T::Reply = std::tuple<WebCore::HasInsecureContent&>; uint64_t = long unsigned int; std::chrono::milliseconds = std::chrono::duration<long int, std::ratio<1l, 1000l> >]’
../../Source/WebKit2/Platform/IPC/MessageSender.h:65:125:   required from ‘bool IPC::MessageSender::sendSync(T&&, typename T::Reply&&, uint64_t, std::chrono::milliseconds, WTF::OptionSet<IPC::SendSyncOption>) [with T = Messages::WebPageProxy::HasInsecureContent; typename T::Reply = std::tuple<WebCore::HasInsecureContent&>; uint64_t = long unsigned int; std::chrono::milliseconds = std::chrono::duration<long int, std::ratio<1l, 1000l> >]’
../../Source/WebKit2/Platform/IPC/MessageSender.h:57:121:   required from ‘bool IPC::MessageSender::sendSync(T&&, typename T::Reply&&, std::chrono::milliseconds, WTF::OptionSet<IPC::SendSyncOption>) [with T = Messages::WebPageProxy::HasInsecureContent; typename T::Reply = std::tuple<WebCore::HasInsecureContent&>; std::chrono::milliseconds = std::chrono::duration<long int, std::ratio<1l, 1000l> >]’
../../Source/WebKit2/WebProcess/WebCoreSupport/WebFrameLoaderClient.cpp:1291:142:   required from here
../../Source/WTF/wtf/EnumTraits.h:46:5: error: body of constexpr function ‘static constexpr bool WTF::EnumValueChecker<T, WTF::EnumValues<E, e, es ...> >::isValidEnum(T) [with T = long unsigned int; E = WebCore::HasInsecureContent; E e = (WebCore::HasInsecureContent)0; E ...es = {}]’ not a return-statement
     }
     ^
../../Source/WTF/wtf/EnumTraits.h: In instantiation of ‘static constexpr bool WTF::EnumValueChecker<T, WTF::EnumValues<E, e, es ...> >::isValidEnum(T) [with T = long unsigned int; E = WebCore::HasInsecureContent; E e = (WebCore::HasInsecureContent)1; E ...es = {(WebCore::HasInsecureContent)0}]’:
../../Source/WTF/wtf/EnumTraits.h:62:78:   required from ‘constexpr std::enable_if_t<std::is_enum<_Tp>::value, bool> WTF::isValidEnum(T) [with E = WebCore::HasInsecureContent; T = long unsigned int; std::enable_if_t<std::is_enum<_Tp>::value, bool> = bool]’
../../Source/WebKit2/Platform/IPC/Decoder.h:93:34:   required from ‘std::enable_if_t<std::is_enum<_Tp>::value, bool> IPC::Decoder::decode(E&) [with E = WebCore::HasInsecureContent; std::enable_if_t<std::is_enum<_Tp>::value, bool> = bool]’
../../Source/WebKit2/Platform/IPC/ArgumentCoders.h:135:13:   required from ‘static bool IPC::TupleCoder<index, Elements>::decode(IPC::Decoder&, std::tuple<_Elements ...>&) [with long unsigned int index = 1ul; Elements = {WebCore::HasInsecureContent&}]’
../../Source/WebKit2/Platform/IPC/ArgumentCoders.h:161:83:   required from ‘static bool IPC::ArgumentCoder<std::tuple<_Elements ...> >::decode(IPC::Decoder&, std::tuple<_Elements ...>&) [with Elements = {WebCore::HasInsecureContent&}]’
../../Source/WebKit2/Platform/IPC/Decoder.h:126:49:   required from ‘std::enable_if_t<(! std::is_enum<_Tp>::value), bool> IPC::Decoder::decode(T&) [with T = std::tuple<WebCore::HasInsecureContent&>; std::enable_if_t<(! std::is_enum<_Tp>::value), bool> = bool]’
../../Source/WebKit2/Platform/IPC/Connection.h:389:38:   required from ‘bool IPC::Connection::sendSync(T&&, typename T::Reply&&, uint64_t, std::chrono::milliseconds, WTF::OptionSet<IPC::SendSyncOption>) [with T = Messages::WebPageProxy::HasInsecureContent; typename T::Reply = std::tuple<WebCore::HasInsecureContent&>; uint64_t = long unsigned int; std::chrono::milliseconds = std::chrono::duration<long int, std::ratio<1l, 1000l> >]’
../../Source/WebKit2/Platform/IPC/MessageSender.h:65:125:   required from ‘bool IPC::MessageSender::sendSync(T&&, typename T::Reply&&, uint64_t, std::chrono::milliseconds, WTF::OptionSet<IPC::SendSyncOption>) [with T = Messages::WebPageProxy::HasInsecureContent; typename T::Reply = std::tuple<WebCore::HasInsecureContent&>; uint64_t = long unsigned int; std::chrono::milliseconds = std::chrono::duration<long int, std::ratio<1l, 1000l> >]’
../../Source/WebKit2/Platform/IPC/MessageSender.h:57:121:   required from ‘bool IPC::MessageSender::sendSync(T&&, typename T::Reply&&, std::chrono::milliseconds, WTF::OptionSet<IPC::SendSyncOption>) [with T = Messages::WebPageProxy::HasInsecureContent; typename T::Reply = std::tuple<WebCore::HasInsecureContent&>; std::chrono::milliseconds = std::chrono::duration<long int, std::ratio<1l, 1000l> >]’
../../Source/WebKit2/WebProcess/WebCoreSupport/WebFrameLoaderClient.cpp:1291:142:   required from here
../../Source/WTF/wtf/EnumTraits.h:46:5: error: body of constexpr function ‘static constexpr bool WTF::EnumValueChecker<T, WTF::EnumValues<E, e, es ...> >::isValidEnum(T) [with T = long unsigned int; E = WebCore::HasInsecureContent; E e = (WebCore::HasInsecureContent)1; E ...es = {(WebCore::HasInsecureContent)0}]’ not a return-statement
[5473/6080] Building CXX object Source/WebKit2/CMakeFiles/WebKit2.dir/WebProcess/WebPage/WebPage.cpp.o

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