-# if the library source code has changed, increment revision
-m4_define([libva_lt_revision], [8])
-# if any interface was added/removed/changed, then inc current, reset revision
-m4_define([libva_lt_current], [1])
-# if any interface was added since last public release, then increment age
-# if any interface was removed since last public release, then set age to 0
-m4_define([libva_lt_age], [0])
+# libva library version number (generated, do not change)
+# XXX: we want the SONAME to remain at libva.so.1 for VA-API major == 0
+#
+# The library name is generated libva.<x>.<y>.0 where
+# <x> = VA-API major version + 1
+# <y> = 100 * VA-API minor version + VA-API micro version
+#
+# For example:
+# VA-API 0.32.0 generates libva.so.1.3200.0
+# VA-API 0.34.1 generates libva.so.1.3401.0
+# VA-API 1.2.13 generates libva.so.2.213.0
+m4_define([libva_interface_bias], [m4_eval(va_api_major_version + 1)])
+m4_define([libva_interface_age], [0])
+m4_define([libva_binary_age],
+ [m4_eval(100 * va_api_minor_version + va_api_micro_version - libva_interface_age)])
+
+m4_define([libva_lt_current],
+ [m4_eval(100 * va_api_minor_version + va_api_micro_version + libva_interface_bias)])
+m4_define([libva_lt_revision],
+ [m4_eval(libva_interface_age)])
+m4_define([libva_lt_age],
+ [m4_eval(libva_binary_age - libva_interface_age)])
+
+# libdrm minimun version requirement
+m4_define([libdrm_version], [2.4])
+
+# Wayland minimum version number
+m4_define([wayland_api_version], [1.0.0])