pidgin/pidgin

Fix a compilation error on windows and many warnings

17 months ago, Gary Kramlich
e128168d9ea5
Fix a compilation error on windows and many warnings

SIG_ACK is macro for handling signals on windows. We just want to use it as a
constant, so we #undef if we see it.

Mark a bunch of parameters as unused.

Fix a bunch of warnings about type casting function pointers.

Testing Done:
Compiled and ran on windows.

Reviewed at https://reviews.imfreedom.org/r/2106/
subdir('reference')
if ENABLE_GTK
pidgin_man = configure_file(
input : 'pidgin3.1.in',
output : 'pidgin3.1',
configuration : man_conf,
install : true,
install_dir : get_option('mandir') / 'man1')
endif
if enable_consoleui
finch_man = configure_file(
input : 'finch3.1.in',
output : 'finch3.1',
configuration : man_conf,
install : true,
install_dir : get_option('mandir') / 'man1')
endif