Compiling /home/jvanek/hg/jdk8u-dev/hotspot/src/share/vm/opto/parse3.cpp
/home/jvanek/hg/jdk8u-dev/hotspot/src/os/linux/vm/os_linux.cpp: In static member function ‘static void os::Linux::check_signal_handler(int)’:
/home/jvanek/hg/jdk8u-dev/hotspot/src/os/linux/vm/os_linux.cpp:4999:15: error: ‘%s’ directive argument is null [-Werror=format-overflow=]
 4999 | tty->print("Warning: %s handler ", exception_name(sig, buf, O_BUFLEN));
      | ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Compiling /home/jvanek/hg/jdk8u-dev/hotspot/src/share/vm/opto/parseHelper.cpp
cc1plus: all warnings being treated as errors
gmake[6]: *** [/home/jvanek/hg/jdk8u-dev/hotspot/make/linux/makefiles/rules.make:151: os_linux.o] Error 1


You need to build as
make WARNINGS_ARE_ERRORS="-Wno-error=format-overflow"

This is older issue, and is not present on jdk11,16 or 18