QT5 failed due to error: invalid directive: '%param' on MSVC

QT5 build failed due to error: invalid directive: '%param' on MSVC. Could you help look at this? Thanks in advance! We use latest source code form QT5 dev branch. Noted that this issue only found when compiles with unreleased vctoolset, that next release of MSVC will have this behavior.

Repro steps:
1. open a clean x86_amd64 prompt
2. git clone git://code.qt.io/qt/qt5.git D:\QT5\src
3. cd D:\QT5\src
4. git checkout dev
5. perl init-repository
6. cd ..
7. set CL=/D_ENABLE_EXTENDED_ALIGNED_STORAGE
8. configure -developer-build -opensource -release -nomake examples -nomake tests -skip qtwebengine -confirm-license
9. jom

Acutal result:

bison --no-lines --skeleton=yacc.c --defines=release\glslang_tab.h --output=release\glslang_tab.cpp ..\..\..\3rdparty\angle\src\compiler\translator\glslang.y
..\\..\\..\\3rdparty\\angle\\src\\compiler\\translator
glslang.y:54.1-6: error: invalid directive: '%param'
..\\..\\..\\3rdparty\\angle\\src\\compiler\\translator
glslang.y:54.10-24: error: syntax error, unexpected {...}

Generating Code...
 lib /NOLOGO  /OUT:..\..\..\lib\Qt6Bootstrap.lib @C:\Users\vcntwtt\AppData\Local\Temp\Qt6Bootstrap.lib.10640.54625.jom
jom: D:\QT5\src\qtbase\src\angle\src\compiler\Makefile.translator.Release [release\glslang_tab.h] Error 1
jom: D:\QT5\src\qtbase\src\angle\src\compiler\Makefile.translator [release] Error 2
jom: D:\QT5\src\qtbase\src\angle\src\compiler\Makefile [sub-translator-pro-make_first-ordered] Error 2
jom: D:\QT5\src\qtbase\src\angle\src\Makefile [sub-compiler-make_first-ordered] Error 2
jom: D:\QT5\src\qtbase\src\angle\Makefile [sub-src-make_first] Error 2
jom: D:\QT5\src\qtbase\src\Makefile [sub-angle-make_first] Error 2

jom: D:\QT5\src\qtbase\Makefile [sub-src-make_first] Error 2
jom: D:\QT5\src\Makefile [module-qtbase-make_first] Error 2