Bug 169123 – [WinCairo] '__int128_t': undeclared identifier in MediaTime.cpp

• Component: Web Template Framework
• Status: RESOLVED FIXED

[Fujii Hironori]

[WinCairo] '__int128_t': undeclared identifier in MediaTime.cpp

WinCairo x64 build fails since r213324 (Bug 169098).

> [6/1400] Building CXX object Source\WTF\wtf\CMakeFiles\WTF.dir\MediaTime.cpp.obj
> FAILED: C:\PROGRA~2\MICROS~3.0\VC\bin\amd64\cl.exe   /nologo /TP /DWIN32 /D_WINDOWS /W4 /GR- /EHs- /EHc-  /MT /O2 /Ob2 /D NDEBUG -IDerivedSources\ForwardingHeaders -IDerivedSources -I..\..\WebKitLibraries\win\include -I..\..\Source\bmalloc -I..\..\Source\WTF -I..\..\Source\WTF\wtf -I..\..\Source\WTF\wtf\dtoa -I..\..\Source\WTF\wtf\persistence -I..\..\Source\WTF\wtf\text -I..\..\Source\WTF\wtf\text\icu -I..\..\Source\WTF\wtf\threads -I..\..\Source\WTF\wtf\unicode -I..\..\Source\ThirdParty -I.    /wd4018 /wd4068 /wd4099 /wd4100 /wd4127 /wd4138 /wd4146 /wd4180 /wd4189 /wd4201 /wd4206 /wd4244 /wd4251 /wd4267 /wd4275 /wd4288 /wd4291 /wd4305 /wd4309 /wd4344 /wd4355 /wd4389 /wd4396 /wd4456 /wd4457 /wd4458 /wd4459 /wd4481 /wd4503 /wd4505 /wd4510 /wd4512 /wd4530 /wd4610 /wd4611 /wd4646 /wd4702 /wd4706 /wd4722 /wd4800 /wd4819 /wd4951 /wd4952 /wd4996 /wd6011 /wd6031 /wd6211 /wd6246 /wd6255 /wd6387 /Zi /GS /EHa- /EHc- /EHs- /fp:except- /analyze- /bigobj /Gy- /openmp- /GF- /Oy- /showIncludes -DBUILDING_WITH_CMAKE=1 -DBUILDING_WTF -DHAVE_CONFIG_H=1 -DNOMINMAX -DUNICODE -DWINVER=0x601 -DWTF_EXPORTS -DWTF_PLATFORM_WIN_CAIRO=1 -D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES=1 -D_CRT_SECURE_NO_WARNINGS -D_HAS_EXCEPTIONS=0 -D_UNICODE -D_WINDOWS /FoSource\WTF\wtf\CMakeFiles\WTF.dir\MediaTime.cpp.obj /FdSource\WTF\wtf\CMakeFiles\WTF.dir\ /FS -c ..\..\Source\WTF\wtf\MediaTime.cpp
> ..\..\Source\WTF\wtf\MediaTime.cpp(493): error C2065: '__int128_t': undeclared identifier
> ..\..\Source\WTF\wtf\MediaTime.cpp(493): error C2146: syntax error: missing ';' before identifier 'newValue'
> ..\..\Source\WTF\wtf\MediaTime.cpp(493): error C2065: 'newValue': undeclared identifier
> ..\..\Source\WTF\wtf\MediaTime.cpp(493): error C2061: syntax error: identifier '__int128_t'
> ..\..\Source\WTF\wtf\MediaTime.cpp(494): error C2065: 'newValue': undeclared identifier
> ..\..\Source\WTF\wtf\MediaTime.cpp(495): error C2065: 'newValue': undeclared identifier
> ..\..\Source\WTF\wtf\MediaTime.cpp(497): error C2065: 'newValue': undeclared identifier
> ..\..\Source\WTF\wtf\MediaTime.cpp(502): error C2065: 'newValue': undeclared identifier
> ..\..\Source\WTF\wtf\MediaTime.cpp(518): error C2065: 'newValue': undeclared identifier
> ninja: build stopped: subcommand failed.

[Jer Noble]

Created attachment 303327 [details]
Patch

[Jer Noble]

Would someone with access to a 64-bit Windows builder please try out this patch and verify that it fixes the compiler error?

[Don Olmstead]

Jer Noble would a more effective patch be to actually test for the presence of int128_t? I was looking at this and was thinking of doing a HAVE version of it.

[Jer Noble]

(In reply to comment #3)
> Jer Noble would a more effective patch be to actually test for the presence
> of int128_t? I was looking at this and was thinking of doing a HAVE version
> of it.

I couldn't find a directive I could use for such a test; if you can, more the better!

[Don Olmstead]

Created attachment 303329 [details]
Patch with CMake checks for HAVE

Here's a version that checks for the presence of __int128_t through CMake.

[Alex Christensen]

Comment on attachment 303329 [details]
Patch with CMake checks for HAVE

View in context: https://bugs.webkit.org/attachment.cgi?id=303329&action=review

> Source/WTF/wtf/Platform.h:553
>  #if CPU(X86_64)
>  #define HAVE_NETWORK_EXTENSION 1
>  #define USE_PLUGIN_HOST_PROCESS 1
> +#define HAVE_INT128_T 1

I don't think this properly reflects the fact that Visual Studio doesn't support the __int128_t type.

[Don Olmstead]

All the changes to Platform.h are for the Mac side since its not using CMake.

[Alex Christensen]

Sorry, Don.  Jer's fix passed EWS and was simpler.  If we feel it's worth it to optimize this for Windows, we can do so later, but we need to fix the build.

[Fujii Hironori]

Landed manually.

https://trac.webkit.org/changeset/213419