[Webkit-unassigned] [Bug 252898] Fix Compile error: 'bool std::isinf(float)' is not 'constexpr' with GCC 4.6 in C++11 mode

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=252898

Diego Pino <dpino at igalia.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dpino at igalia.com

--- Comment #4 from Diego Pino <dpino at igalia.com> ---
This patch has broken Ubuntu 20.04 post-commit build bot (which uses GCC9.4 and we need to maintain until 20th April 2023):

https://build.webkit.org/#/builders/595/builds/7860

```
In file included from /home/buildbot/worker/GTK-Linux-64-bit-Release-Ubuntu-2004-Build/build/Source/WebCore/PAL/pal/text/TextCodecSingleByte.cpp:30:
/usr/include/c++/9/mutex:666:5: error: ‘void std::call_once(std::once_flag&, _Callable&&, _Args&& ...) [with _Callable = PAL::tableForEncoding() [with const SingleByteDecodeTable& decodeTable = PAL::iso88593; PAL::SingleByteEncodeTable = WTF::IteratorRange<const std::pair<char16_t, unsigned char>*>]::<lambda()>; _Args = {}]’, declared using local type ‘PAL::tableForEncoding() [with const SingleByteDecodeTable& decodeTable = PAL::iso88593; PAL::SingleByteEncodeTable = WTF::IteratorRange<const std::pair<char16_t, unsigned char>*>]::<lambda()>’, is used but never defined [-fpermissive]
  666 |     call_once(once_flag& __once, _Callable&& __f, _Args&&... __args)
      |     ^~~~~~~~~
```

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