From 5ef2ff1707a70a2c41691bb23ae58b17437dbd77 Mon Sep 17 00:00:00 2001
From: Anders Johansson <anders@roxen.com>
Date: Wed, 11 Sep 2013 13:35:52 +0200
Subject: [PATCH 1/2] Added --source-map-basepath option

---
 bin/lessc                | 7 ++++++-
 lib/less/lessc_helper.js | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/bin/lessc b/bin/lessc
index c830488b3..166f7ce3e 100755
--- a/bin/lessc
+++ b/bin/lessc
@@ -150,6 +150,11 @@ args = args.filter(function (arg) {
                 options.sourceMapRootpath = match[2];
             }
             break;
+        case 'source-map-basepath':
+            if (checkArgFunc(arg, match[2])) {
+                options.sourceMapBasepath = match[2];
+            }
+            break;
         case 'source-map-inline':
             options.outputSourceFiles = true;
             break;
@@ -197,7 +202,7 @@ if (output) {
     }
 }
 
-options.sourceMapBasepath = process.cwd();
+options.sourceMapBasepath = options.sourceMapBasepath || process.cwd();
 
 if (options.sourceMap === true) {
     if (!output) {
diff --git a/lib/less/lessc_helper.js b/lib/less/lessc_helper.js
index 14e70cca3..d180f4060 100644
--- a/lib/less/lessc_helper.js
+++ b/lib/less/lessc_helper.js
@@ -53,6 +53,7 @@ var lessc_helper = {
         sys.puts("                          format, and 'all' which will do both.");
         sys.puts("  --source-map[=FILENAME] Outputs a v3 sourcemap to the filename (or output filename.map)");
         sys.puts("  --source-map-rootpath=X adds this path onto the sourcemap filename and less file paths");
+        sys.puts("  --source-map-basepath=X Sets sourcemap base path, defaults to current working directory.");
         sys.puts("  --source-map-inline     puts the less files into the map instead of referencing them");
         sys.puts("  -rp, --rootpath=URL     Set rootpath for url rewriting in relative imports and urls.");
         sys.puts("                          Works with or without the relative-urls option.");

From bab31952ff77bfa9de09ed0551ed306275df620d Mon Sep 17 00:00:00 2001
From: Anders Johansson <anders@roxen.com>
Date: Wed, 11 Sep 2013 13:48:50 +0200
Subject: [PATCH 2/2] Normalize path for sourceMappingURL.

---
 lib/less/source-map-output.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/less/source-map-output.js b/lib/less/source-map-output.js
index 8d2b7c6ef..821cfc9f3 100644
--- a/lib/less/source-map-output.js
+++ b/lib/less/source-map-output.js
@@ -80,11 +80,11 @@
             this._writeSourceMap(JSON.stringify(this._sourceMapGenerator.toJSON()));
 
             if (this._sourceMapFilename) {
-                this._css.push("/*# sourceMappingURL=" + this._sourceMapRootpath + this._sourceMapFilename + " */");
+                this._css.push("/*# sourceMappingURL=" + this.normalizeFilename(this._sourceMapFilename) + " */");
             }
         }
 
         return this._css.join('');
     };
 
-})(require('./tree'));
\ No newline at end of file
+})(require('./tree'));