[Meson] Change jack-devel option to be boolean

meson_options.txt

@@ -52,8 +52,8 @@ option('pipewire-jack',
        value: 'enabled')
 option('jack-devel',
        description: 'Install jack development files',
-       type: 'feature',
-       value: 'disabled')
+       type: 'boolean',
+       value: 'false')
 option('libjack-path',
        description: 'Where to install the libjack.so library',
        type: 'string')

pipewire-jack/meson.build

@@ -1,5 +1,5 @@
 jack_inc = include_directories('.')
-if get_option('jack-devel').enabled()
+if get_option('jack-devel') == true
   install_subdir('jack', install_dir: get_option('includedir'), strip_directory: false)
 endif
 subdir('src')

pipewire-jack/src/meson.build

@@ -68,7 +68,7 @@ pipewire_jackserver = shared_library('jacknet',
     install_dir : libjack_path,
 )
 
-if get_option('jack-devel').enabled()
+if get_option('jack-devel') == true
   pkgconfig.generate(filebase : 'jack',
   libraries : [pipewire_jack, pipewire_jackserver],
   name : 'jack',