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/
/* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "internal.h"
#include "version.h"
const guint purple_major_version = PURPLE_MAJOR_VERSION;
const guint purple_minor_version = PURPLE_MINOR_VERSION;
const guint purple_micro_version = PURPLE_MICRO_VERSION;
const char *purple_version_check(guint required_major, guint required_minor, guint required_micro)
{
if (required_major > PURPLE_MAJOR_VERSION)
return "libpurple version too old (major mismatch)";
if (required_major < PURPLE_MAJOR_VERSION)
return "libpurple version too new (major mismatch)";
if (required_minor > PURPLE_MINOR_VERSION)
return "libpurple version too old (minor mismatch)";
if ((required_minor == PURPLE_MINOR_VERSION) && (required_micro > PURPLE_MICRO_VERSION))
return "libpurple version too old (micro mismatch)";
return NULL;
}