Bump version to 2.0.0-alpha1

meson.build

@@ -1,4 +1,4 @@
-project('megapixels', 'c', version: '2.0.0')
+project('megapixels', 'c', version: '2.0.0-alpha1')
 
 gnome = import('gnome')
 gtkdep = dependency('gtk4')
@@ -9,8 +9,8 @@ threads = dependency('threads')
 # gl = dependency('gl')
 epoxy      = dependency('epoxy')
 
-libmp = dependency('libmegapixels')
-libdng = dependency('libdng')
+libmp = dependency('libmegapixels', version: '>=1.0.0')
+libdng = dependency('libdng', version: '>=1.1.0')
 
 # We only build in support for Wayland/X11 if GTK did so
 optdeps = []
@@ -43,12 +43,6 @@ if get_option('buildtype') == 'debug'
   add_global_arguments('-DDEBUG', language: 'c')
 endif
 
-# Workaround for libtiff having ABI changes but not changing the internal
-# version number
-if get_option('tiffcfapattern')
-  add_global_arguments('-DLIBTIFF_CFA_PATTERN', language: 'c')
-endif
-
 executable('megapixels',
   'src/camera.c',
   'src/flash.c',