Merge PR#356: Making management of installation directories more structured, more uniform

1 files changed, 11 insertions, 13 deletions

diff --git a/tools/coqdoc/cdglobals.ml b/tools/coqdoc/cdglobals.ml
index 5d48473d8..ef203960b 100644
--- a/tools/coqdoc/cdglobals.ml
+++ b/tools/coqdoc/cdglobals.ml
@@ -70,23 +70,21 @@ let normalize_filename f =
   let dirname = Filename.dirname f in
   normalize_path dirname, basename
 
+(** Add a local installation suffix (unless the suffix is itself
+    absolute in which case the prefix does not matter) *)
+let use_suffix prefix suffix =
+  if String.length suffix > 0 && suffix.[0] = '/' then suffix else prefix / suffix
+
 (** A weaker analog of the function in Envars *)
 
 let guess_coqlib () =
   let file = "theories/Init/Prelude.vo" in
-  match Coq_config.coqlib with
-    | Some coqlib when Sys.file_exists (coqlib / file) -> coqlib
-    | Some _ | None ->
-      let coqbin = normalize_path (Filename.dirname Sys.executable_name) in
-      let prefix = Filename.dirname coqbin in
-      let rpath =
-        if Coq_config.local then []
-        else if Coq_config.arch_is_win32 then ["lib"]
-        else ["lib/coq"]
-      in
-      let coqlib = List.fold_left (/) prefix rpath in
-      if Sys.file_exists (coqlib / file) then coqlib
-      else prefix
+  let coqbin = normalize_path (Filename.dirname Sys.executable_name) in
+  let prefix = Filename.dirname coqbin in
+  let coqlib = use_suffix prefix Coq_config.coqlibsuffix in
+  if Sys.file_exists (coqlib / file) then coqlib else
+  if not Coq_config.local && Sys.file_exists (Coq_config.coqlib / file)
+  then Coq_config.coqlib else prefix
 
 let header_trailer = ref true
 let header_file = ref ""