Enable pointer compression V8 8.6

[Ben Ernst]

Hey all, thank you in advance for any advice here. How does one enable pointer compression? I'm updating from v7.1 to v8.6, and I get this error message (below) at runtime. It is probably something minor I overlooked in the code samples.

#

# Fatal error in ../../src/api/api.cc, line 5696

# Embedder-vs-V8 build configuration mismatch. On embedder side pointer compression is DISABLED while on V8 side it's ENABLED.

#

#

#

#FailureMessage Object: 00000078F51FF0A0

==== C stack trace ===============================

        v8::base::debug::StackTrace::StackTrace [0x00007FF77D4C776B+27]

        v8::platform::DefaultPlatform::PostJob [0x00007FF77D4C4141+401]

        V8_Fatal [0x00007FF77B7A5787+167]

        v8::V8::Initialize [0x00007FF77B73D78D+77]

        v8::V8::Initialize [0x00007FF77B545CE0+176] (C:\Code\Optimatics\justobjects\libs\3rdParty\include\v8.h:9655)

        ezv8::Platform::Impl::Impl [0x00007FF77B54BBC3+259] (C:\Code\Optimatics\justobjects\src\ezv8\platform.cpp:46)

        std::_Construct_in_place<ezv8::Platform::Impl> [0x00007FF77D4A9AB2+98] (C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.27.29110\include\xmemory:231)

        std::_Ref_count_obj2<ezv8::Platform::Impl>::_Ref_count_obj2<ezv8::Platform::Impl><> [0x00007FF77D4A9637+119] (C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.27.29110\include\memory:1428)

        std::make_shared<ezv8::Platform::Impl> [0x00007FF77B54B9F8+120] (C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\MSVC\14.27.29110\include\memory:2072)

        ezv8::Platform::Platform [0x00007FF77D4AA585+69] (C:\Code\Optimatics\justobjects\src\ezv8\platform.cpp:24)

        `dynamic initializer for 'platform'' [0x00007FF77B52CBB7+71] (C:\Code\Optimatics\justobjects\src\ezv8\platform.cpp:70)

[Rodrigo Hernandez]

Hi Ben, 

You need to add - DV8_COMPRES_POINTERS to your compile flags.

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[Ben Ernst]

Thank you Rodrigo, defining V8_COMPRESS_POINTERS was indeed the fix (future readers of this thread note double "S"). 

Cheers,

Ben