When I build on my F36 box, I'm seeing this at the very top:

Runnable configure script is not present
Generating runnable configure script at /disk/openjdk/upstream-sources/git/jdk-jdk/build/.configure-support/generated-configure.sh
Using autoconf at /usr/bin/autoconf [autoconf (GNU Autoconf) 2.71]
stdin:225: warning: AC_CHECK_HEADERS($HEADERS_TO_CHECK): you should use literals
./lib/autoconf/headers.m4:217: AC_CHECK_HEADERS is expanded from...
/disk/openjdk/upstream-sources/git/jdk-jdk/make/autoconf/libraries.m4:95: LIB_SETUP_LIBRARIES is expanded from...
stdin:225: the top level
configure: Configuration created at Thu Sep 29 14:06:37 CEST 2022.


Note the 'AC_CHECK_HEADERS' related warning.