"Failed to register an intel toolset!" despite "iclvars.bat" intel64 ran.

[boost@…]

Moin Moin.

Despite I ran

"iclvars.bat" intel64

I do receive an.: "Failed to register an intel toolset!" despite Message in "tools\build\src\tools\intel-win.jam" due to.:

if ! [ feature.values <toolset-intel:version> ]

being true (, hence failing). I tried to google the syntax, but did not find any expression-list explaining.:

[ feature.values <toolset-intel:version> ]

Is there a syntax to print out the expressions.: Using.:

ECHO $feature.values ; ECHO $(feature.values) ; ECHO <toolset-intel:version> ; ECHO $(<toolset-intel:version>) ;

just yields.: $feature.values

<toolset-intel:version>

So at least $feature.values does seem to be empty.

But typing in

call "%VT_DLL_DIR%\..\..\..\compilers_and_libraries\windows\bin\iclvars.bat" intel64

bootstrap.bat does compile a functional b2.exe/bjam.exe pair. Does anyone know, what happened here, or can someone privide help(-files) on the syntax used for the if-statement, please. 8⁾⁾⁾

Tschüß,

Michael.