pidgin/pidgin

Use LT_LIB_M to determine if we need to link to the math library and link Pidgin to the X11 libraries
release-2.x.y
2021-04-11, Gary Kramlich
132d17234930
Use LT_LIB_M to determine if we need to link to the math library and link Pidgin to the X11 libraries

Gentoo ran into an issue with the gold linker without -lm. The original patch
and work came from Justin Lechner. https://bugs.gentoo.org/386079

Gentoo also ran into an issue with X11_LIBS not being added to pidgin. This
should already be implicit everywhere except for homebrew which patches X11
out of their build. Original patch/work came from and. https://bugs.gentoo.org/500762

Testing Done:
Installed and ran locally.

Reviewed at https://reviews.imfreedom.org/r/608/
/** @page gtkimhtml-signals GtkIMHtml Signals
@signals
@signal url_clicked
@signal format_buttons_update
@signal format_function_clear
@signal format_function_toggle
@signal format_function_update
@signal paste
@endsignals
@see gtkimhtml.h
<hr>
@signaldef url_clicked
@signalproto
void (*url_clicked)(GtkIMHtml *imhtml, char *uri);
@endsignalproto
@signaldesc Emitted when a link is clicked
@param imhtml The GtkIMHtml emitting the signal.
@param url The uri.
@endsignaldef
@signaldef format_buttons_update
@signalproto
void (*format_buttons_update)(GtkIMHtml *imhtml, GtkIMHtmlButtons buttons, gpointer data);
@endsignalproto
@signaldesc Emitted when allowed formatting has changed.
@param imhtml The GtkIMHtml emitting the signal.
@param buttons GtkIMHtmlButtons for the GtkIMHtml.
@param data User defined data.
@endsignaldef
@signaldef format_function_clear
@signalproto
void (*format_function_clear)(GtkIMHtml *imhtml, gpointer data);
@endsignalproto
@signaldesc Emitted when clearing the formatting for the GtkIMHtml.
@param imhtml The GtkIMHtml emitting the signal.
@param data User defined data.
@endsignaldef
@signaldef format_function_toggle
@signalproto
void (*format_function_toggle)(GtkIMHtml *imhtml, GtkIMHtmlButtons buttons, gpointer data);
@endsignalproto
@signaldesc Emitted when a format has been toggled.
@param imhtml The GtkIMHtml emitting the signal.
@param buttons GtkIMHtmlButtons for the GtkIMHtml.
@param data User defined data.
@endsignaldef
@signaldef format_function_update
@signalproto
void (*format_function_update)(GtkIMHtml *imhtml, gpointer data);
@endsignalproto
@signaldesc Emitted when the cursor has moved and formatting has changed
@param imhtml The GtkIMHtml emitting the signal.
@param data User defined data.
@signaldef paste
@signalproto
void (*paste) (GtkIMHtml *imhtml, char *format)
@endsignalproto
@signaldesc Emitted when paste from the clipboard is requested.
@param imhtml The GtkIMHtml emitting the signal.
@param format If 'text', then the formatting of the clipboard content
will be removed before pasting. If empty or 'html', then
the formatting will not be removed. Any other value for
this parameter is ignored and nothing is pasted.
@endsignaldef
*/
// vim: syntax=c.doxygen tw=75 et