X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=generator%2Fgenerator_api_versions.mli;h=0932a6714ff4ea4a15124c1ea635700f06454b30;hp=03e8777f919a174815b9542a52364577e5d96d99;hb=5a10318ac808fb3cb0bf9071e0cf6b63a0b3eb6a;hpb=7e3d76e41b3c2862ae04744b01e5e23b245393e4

diff --git a/generator/generator_api_versions.mli b/generator/generator_api_versions.mli
index 03e8777..0932a67 100644
--- a/generator/generator_api_versions.mli
+++ b/generator/generator_api_versions.mli
@@ -25,7 +25,8 @@
 val load_api_versions : string -> unit
 (** Load the data from the named file. *)
 
-val lookup_api_version : string -> string
+val lookup_api_version : string -> string option
 (** [lookup_api_version c_api] looks up the version that the C API call
     (which must be the full C name, eg. ["guestfs_launch"]) was
-    added.  This returns the version string, eg. ["0.3"]. *)
+    added.  This returns the version string, eg. [Some "0.3"], or
+    [None] if no version could be found. *)