qulogic/pidgin

Fix Windows builds and tests

2020-12-22, Elliott Sales de Andrade
48dfed6f4f1f
Fix Windows builds and tests

* Make math library optional.
As the comment says, it should be optional on Windows and Haiku, but the check defaults to required.
* Don't make `unistd.h` required.
* Disable transparency plugin build as it's very busted.
* Add missing headers to fix compile on Windows.
* Use a fixed pref key for test plugin loading instead of `TEST_DATA_DIR`.
The latter is an absolute path, and thus unsuitable as a preference key, since it will not start with `/` on Windows.
* Add a missing pref initialization on Windows.

Testing Done:
Compiled and run tests on Windows.

Reviewed at https://reviews.imfreedom.org/r/308/
if PLUGINS
if x11.found()
gntclipboard = library('gntclipboard', 'gntclipboard.c',
dependencies : [x11, libpurple_dep, libfinch_dep, glib],
name_prefix : '',
install : true, install_dir : FINCH_PLUGINDIR)
gntgf = library('gntgf', 'gntgf.c',
c_args : ncurses_header,
dependencies : [x11, libpurple_dep, libfinch_dep, ncurses, glib],
name_prefix : '',
install : true, install_dir : FINCH_PLUGINDIR)
endif
gnthistory = library('gnthistory', 'gnthistory.c',
dependencies : [libpurple_dep, libfinch_dep, glib],
name_prefix : '',
install : true, install_dir : FINCH_PLUGINDIR)
gntlastlog = library('gntlastlog', 'lastlog.c',
dependencies : [libpurple_dep, libfinch_dep, ncurses, glib],
name_prefix : '',
install : true, install_dir : FINCH_PLUGINDIR)
gnttinyurl = library('gnttinyurl', 'gnttinyurl.c',
dependencies : [libpurple_dep, libfinch_dep, libsoup, glib],
name_prefix : '',
install : true, install_dir : FINCH_PLUGINDIR)
grouping = library('grouping', 'grouping.c',
dependencies : [libpurple_dep, libfinch_dep, glib],
name_prefix : '',
install : true, install_dir : FINCH_PLUGINDIR)
endif # PLUGINS