ERROR: Error installing fillable-pdf

[joyboy67]

Hello, I have an issue in the installation

$ gem install fillable-pdf

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

    current directory: /usr/local/lib/ruby/gems/3.2/gems/rjb-1.6.7/ext
/usr/local/bin/ruby32 extconf.rb
*** 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=/usr/local/bin/$(RUBY_BASE_NAME)32
extconf.rb:54:in `<main>': JAVA_HOME is not set. (RuntimeError)

extconf failed, exit code 1

Gem files will remain installed in /usr/local/lib/ruby/gems/3.2/gems/rjb-1.6.7 for inspection.
Results logged to /usr/local/lib/ruby/gems/3.2/extensions/x86_64-openbsd/3.2/rjb-1.6.7/gem_make.out

Do I need to install Java or set a JAVA_HOME env var ?

Ruby and Gem version: 3.2
OS: OpenBSD 7.3

[vkononov]

@joyboy67 Have you read the installation instructions?

[joyboy67]

@joyboy67 Have you read the installation instructions?

ah yes I didn't see that part ! thank you