qulogic/pidgin

Fix introspection meson option.

2020-12-09, Elliott Sales de Andrade
ce42c0efab90
Fix introspection meson option.

It is no longer a disabler, so passing it to required: does not turn off that
dependency like it should. Also, the options in the projects were renamed.

Testing Done:
`meson configure -Dintrospection=false`, plus a bunch of plugin options off too since that need introspection.

Reviewed at https://reviews.imfreedom.org/r/266/
subdir('libpurple')
subdir('protocols')
if ENABLE_GTK
subdir('pidgin')
else
pidgin_doc = []
endif
if enable_consoleui
subdir('finch')
else
finch_doc = []
endif
if meson.version().version_compare('>=0.52.0')
alias_target('doc', libpurple_doc, protocols_doc, pidgin_doc, finch_doc)
endif