This change is crucial when $(SolutionDir) = "" and includePath is $(SolutionDir)/libs.

Without this change, the include path will be "/libs", which is not the same as "./libs" or "libs".

Author: Felix Faber

lib/importproject.cpp

@@ -193,6 +193,8 @@ ImportProject::Type ImportProject::import(const std::string &filename, Settings
     mPath = Path::getPathFromFilename(Path::fromNativeSeparators(filename));
     if (!mPath.empty() && !endsWith(mPath,'/'))
         mPath += '/';
+    if (mPath.empty())
+        mPath = std::string("./");
 
     const std::vector<std::string> fileFilters =
         settings ? settings->fileFilters : std::vector<std::string>();