Exporter.qbs: Prevent passing an empty string to FileInfo.relativePath()

Change-Id: I55a5daf06dfc89a302914a3e3a0734540e2b401e
Reviewed-by: Alexander Jakobi <alex.jakobi@qt.io>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/share/qbs/modules/Exporter/qbs/qbsexporter.js b/share/qbs/modules/Exporter/qbs/qbsexporter.js
index 45324bb4e..16408174b 100644
--- a/share/qbs/modules/Exporter/qbs/qbsexporter.js
+++ b/share/qbs/modules/Exporter/qbs/qbsexporter.js
@@ -154,7 +154,7 @@ function stringifyValue(project, product, moduleInstallDir, prop, value)
         var deployedModuleInstallDir = moduleInstallDir.slice(fullInstallPrefix.length);
         return "FileInfo.cleanPath(FileInfo.joinPaths(path, FileInfo.relativePath("
                 + JSON.stringify(deployedModuleInstallDir) + ", "
-                + JSON.stringify(value.slice(valuePrefixToStrip.length)) + ")))";
+                + JSON.stringify(value.slice(valuePrefixToStrip.length) || "/") + ")))";
     }
 
     return JSON.stringify(value);