-fp-model precise should be -fp-model=precise
$ pwd
/home/jczhang/openfoam/wmake/rules
$ grep -r fp-model *
linux64Icc/c++:c++ARCH := -pthread -fp-trap=common -fp-model precise
linux64Icx/c++:c++ARCH := -fp-model precise
linuxIcc/c++:c++ARCH := -pthread -fp-trap=common -fp-model precise
But according to https://www.intel.com/content/www/us/en/docs/cpp-compiler/developer-guide-reference/2021-8/fp-model-fp.html, it should be -fp-model=precise