base: Pass the correct load path to the 'evaluate' command.

The previous load path was potentially incorrect since commit
2fe7ff87e23b18d49bd33cffc4766b7eaa382054.

* src/cuirass/base.scm (evaluate)[tokenize, load-path]: New variables.
Assume #:load-path is colon-separated.  Pass LOAD-PATH as the second
argument to 'evaluate'.
* doc/cuirass.texi (Database): Adjust documentation.

1 files changed, 10 insertions, 5 deletions

diff --git a/doc/cuirass.texi b/doc/cuirass.texi
index fcebef6..b5b27e8 100644
--- a/doc/cuirass.texi
+++ b/doc/cuirass.texi
@@ -11,7 +11,8 @@ This manual is for Cuirass version @value{VERSION}, a build automation
 server.
 
 Copyright @copyright{} 2016, 2017 Mathieu Lirzin@*
-Copyright @copyright{} 2017 Mathieu Othacehe
+Copyright @copyright{} 2017 Mathieu Othacehe@*
+Copyright @copyright{} 2018 Ludovic Courtès
 
 @quotation
 Permission is granted to copy, distribute and/or modify this document
@@ -248,12 +249,16 @@ specification itself.
 The URL of the repository.
 
 @item load_path
-This text field holds the name of the subdirectory in the checked out
-repository that is passed to the @code{evaluate} tool as the Guile load
-path.  This directory is interpreted relative to the repository in the
-Cuirass cache directory.  This will usually be the current directory
+This field holds a colon-separated list of directories that are
+prepended to the Guile load path when evaluating @code{file} (see
+below.)
+
+Each entry that is not an absolute file name is interpreted relative to
+the source code checkout.  Often, @code{load_path} has just one entry,
 @code{"."}.
 
+When @code{load_path} is empty, the load path is left unchanged.
+
 @item file
 The absolute name of the Scheme file containing PROC.