[Webkit-unassigned] [Bug 196768] New: SSE2 detection fails during configuration

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=196768

            Bug ID: 196768
           Summary: SSE2 detection fails during configuration
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CMake
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zlatko-webkit at zlatk0.net

Created attachment 367121

  --> https://bugs.webkit.org/attachment.cgi?id=367121&action=review

detailed cmake output of the configuration run

webkit-gtk-2.24.1, cmake-3.5.2, clang-3.8.0 (Slackware's gcc-5.5.0 is too old), Slackware 14.2 (i686/32bit):

> $ mkdir -p build && cd build && cmake .. -DPORT=GTK -DUSE_LD_GOLD=OFF -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_COMPILER=/usr/bin/clang++ -DCMAKE_C_COMPILER=/usr/bin/clang
> -- The C compiler identification is Clang 3.8.0
> -- The CXX compiler identification is Clang 3.8.0
> -- Check for working C compiler: /usr/bin/clang
> -- Check for working C compiler: /usr/bin/clang -- works
> -- Detecting C compiler ABI info
> -- Detecting C compiler ABI info - done
> -- Detecting C compile features
> -- Detecting C compile features - done
> -- Check for working CXX compiler: /usr/bin/clang++
> -- Check for working CXX compiler: /usr/bin/clang++ -- works
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> -- Detecting CXX compile features
> -- Detecting CXX compile features - done
> -- The CMake build type is: Release
> -- Performing Test HAVE_SSE2_EXTENSIONS
> -- Performing Test HAVE_SSE2_EXTENSIONS - Success
> CMake Error at CMakeLists.txt:115 (message):
>   SSE2 support is required to compile WebKit
> 
> 
> -- Configuring incomplete, errors occurred!
> See also "/usr/local/src/webkitgtk-2.24.1/build/CMakeFiles/CMakeOutput.log".

The CMakeOutput.log is attached. Needless to say, my CPU *does* have SSE2 support of course:

> $ grep flags /proc/cpuinfo | uniq | xargs -n1 | grep sse
> sse
> sse2
> ssse3
> sse4_1
> sse4_2

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