fix(dependencies): include glib2

Closes #11

README.md

@@ -110,7 +110,7 @@ The following lines can be used as swappy's default:
 
 ## Building from source
 
-Install dependencies:
+Install dependencies (on Arch, name can vary for other distros):
 
 - meson
 - ninja
@@ -118,13 +118,14 @@ Install dependencies:
 - cairo
 - pango
 - gtk
+- glib2
+- scdoc
 
 Optional dependencies:
 
 - wayland-protocols (for the `-g` option to work with [wlr-screencopy-unstable-v1] protocol)
 - wl-clipboard (to make sure the copy is saved if you close swappy)
 - libnotify (not get notified when swappshot is copied or saved)
-- scdoc to generate the man page
 
 Then run:
 

meson.build

@@ -27,6 +27,7 @@ pango = dependency('pango')
 math = cc.find_library('m')
 realtime = cc.find_library('rt')
 gtk = dependency('gtk+-3.0', version: '>=3.20.0')
+gio = cc.find_library('gio-2.0')
 wayland_client = dependency('wayland-client')
 wayland_cursor = dependency('wayland-cursor')
 wayland_protos = dependency('wayland-protocols', version: '>=1.14', required: false)
@@ -67,6 +68,7 @@ executable(
 		cairo,
 		pango,
 		client_protos,
+		gio,
 		gtk,
 		libnotify,
 		math,