jruby installation broken since 0.17.3

Description

Reproduction steps

1. Install the latest jruby (e.g. rbenv install jruby-9.4.8.0)
2. Try to install the latest ruby-lsp: gem install ruby-lsp
3. It will fail building the native extension

Code snippet or error message

Building native extensions. This could take a while...
ERROR:  Error installing ruby-lsp:
	ERROR: Failed to build gem native extension.

    current directory: /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/gems/shared/gems/rbs-3.5.2/ext/rbs_extension
/Users/rolando/.rbenv/versions/jruby-9.4.8.0/bin/jruby -I /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib extconf.rb
checking for whether -std=gnu99 is accepted as CFLAGS... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
	--with-opt-dir
	--without-opt-dir
	--with-opt-include
	--without-opt-include=${opt-dir}/include
	--with-opt-lib
	--without-opt-lib=${opt-dir}/lib
	--with-make-prog
	--without-make-prog
	--srcdir=.
	--curdir
	--ruby=/Users/rolando/.rbenv/versions/jruby-9.4.8.0/bin/jruby
RuntimeError: The compiler failed to generate an executable file.
You have to install development tools first.

         try_do at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:456
    try_compile at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:571
    with_werror at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:522
    try_compile at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:571
     try_cflags at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:635
  append_cflags at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:641
   checking_for at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:942
       postpone at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:350
           open at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:320
       postpone at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:350
           open at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:320
       postpone at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:346
   checking_for at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:941
  append_cflags at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:640
           each at org/jruby/RubyArray.java:1981
  append_cflags at /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/stdlib/mkmf.rb:639
         <main> at extconf.rb:3

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/gems/shared/extensions/universal-java-22/3.1.0/rbs-3.5.2/mkmf.log

mkmf.log:

" -o conftest -I/include/universal-java22 -I/Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/include/ruby/backward -I/Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib/ruby/include -I.  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE     -DTARGET_RT_MAC_CFM=0  -fno-omit-frame-pointer -fno-strict-aliasing  -fexceptions  conftest.c  -L. -L/Users/rolando/.rbenv/versions/jruby-9.4.8.0/lib    -arch arm64      "
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <ruby.h>
4: int main(int argc, char **argv)
5: {
6:   return 0;
7: }
/* end */

Last known version to build seems to be 0.17.2:

gem install ruby-lsp -v 0.17.2
Successfully installed ruby-lsp-0.17.2
Parsing documentation for ruby-lsp-0.17.2
Done installing documentation for ruby-lsp after 2 seconds
1 gem installed

Reproduce the failure with JRuby 9.4.8.0 and the latest ruby-lsp, then inspect the reported mkmf.log and rbs-3.5.2/ext/rbs_extension/extconf.rb. Compare the successful ruby-lsp 0.17.2 installation with the failing version; done means the latest gem installs successfully on JRuby.