Comment 1 for bug 2031433

- webkitgtk 2.41.90
- Ubuntu 23.10
- https://salsa.debian.org/webkit-team/webkit/-/blob/wk2/experimental/debian/rules
- https://salsa.debian.org/webkit-team/webkit/-/blob/wk2/experimental/debian/control

webkitgtk 2.41.90 fails to build on riscv64 but seems to build ok on our other architectures.

Full build log
---------------
https://launchpad.net/ubuntu/+source/webkit2gtk/2.41.90-1ubuntu1

Build log excerpt
------------------

In file included from JavaScriptCore/DerivedSources/unified-sources/UnifiedSource-15db4ad9-1.cpp:1:
/<<PKGBUILDDIR>>/Source/JavaScriptCore/wasm/WasmB3IRGenerator.cpp: In member function
 ‘JSC::Wasm::B3IRGenerator::PartialResult JSC::Wasm::B3IRGenerator::addI32Popcnt(ExpressionType, JSC::B3::Variable*&)’:
/<<PKGBUILDDIR>>/Source/JavaScriptCore/wasm/WasmB3IRGenerator.cpp:5214:25:
 error: ‘supportsCountPopulation’ is not a member of ‘JSC::MacroAssembler’
 5214 | if (MacroAssembler::supportsCountPopulation()) {
      | ^~~~~~~~~~~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/Source/JavaScriptCore/wasm/WasmB3IRGenerator.cpp: In lambda function:
/<<PKGBUILDDIR>>/Source/JavaScriptCore/wasm/WasmB3IRGenerator.cpp:5224:17:
 error: ‘class JSC::CCallHelpers’ has no member named ‘countPopulation32’
 5224 | jit.countPopulation32(params[1].gpr(), params[0].gpr(), params.fpScratch(0));
      | ^~~~~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/Source/JavaScriptCore/wasm/WasmB3IRGenerator.cpp: In member function
 ‘JSC::Wasm::B3IRGenerator::PartialResult JSC::Wasm::B3IRGenerator::addI64Popcnt(ExpressionType, JSC::B3::Variable*&)’:
/<<PKGBUILDDIR>>/Source/JavaScriptCore/wasm/WasmB3IRGenerator.cpp:5241:25:
 error: ‘supportsCountPopulation’ is not a member of ‘JSC::MacroAssembler’
 5241 | if (MacroAssembler::supportsCountPopulation()) {
      | ^~~~~~~~~~~~~~~~~~~~~~~
/<<PKGBUILDDIR>>/Source/JavaScriptCore/wasm/WasmB3IRGenerator.cpp: In lambda function:
/<<PKGBUILDDIR>>/Source/JavaScriptCore/wasm/WasmB3IRGenerator.cpp:5251:17:
 error: ‘class JSC::CCallHelpers’ has no member named ‘countPopulation64’
 5251 | jit.countPopulation64(params[1].gpr(), params[0].gpr(), params.fpScratch(0));
      | ^~~~~~~~~~~~~~~~~