diff --git a/stim/grids/image_stack.h b/stim/grids/image_stack.h
index f0c3752..1eb7359 100644
--- a/stim/grids/image_stack.h
+++ b/stim/grids/image_stack.h
@@ -33,10 +33,10 @@ public:
 		stim::filename file_path(file_mask);
 
 		//if the file path is relative, update it with the current working directory
-		if(file_path.is_relative()){
-			stim::filename wd = stim::filename::cwd();
-			file_path = wd.get_relative(file_mask);
-		}
+//		if(file_path.is_relative()){
+//			stim::filename wd = stim::filename::cwd();
+//			file_path = wd.get_relative(file_mask);
+//		}
 
 		//get the list of files
 		std::vector<stim::filename> file_list = file_path.get_list();
@@ -134,10 +134,10 @@ public:
 		stim::filename file_path(file_mask);
 
 		//if the file path is relative, update it with the current working directory
-		if(file_path.is_relative()){
-			stim::filename wd = stim::filename::cwd();
-			file_path = wd.get_relative(file_mask);
-		}
+//		if(file_path.is_relative()){
+//			stim::filename wd = stim::filename::cwd();
+//			file_path = wd.get_relative(file_mask);
+//		}
 
 		//create a list of file names
 		std::vector<std::string> file_list = stim::wildcards::increment(file_path.str(), 0, R[3]-1, 1);
diff --git a/stim/math/vec3.h b/stim/math/vec3.h
index 99e3809..80f7257 100644
--- a/stim/math/vec3.h
+++ b/stim/math/vec3.h
@@ -216,7 +216,6 @@ public:
 		return result;
 	}
 
-#ifndef __NVCC__
 	/// Outputs the vector as a string
 	std::string str() const{
 		std::stringstream ss;
@@ -234,7 +233,6 @@ public:
 
 		return ss.str();
 	}
-#endif
 
 	size_t size(){ return 3; }
 
diff --git a/stim/parser/filename.h b/stim/parser/filename.h
index 5303084..0922d67 100644
--- a/stim/parser/filename.h
+++ b/stim/parser/filename.h
@@ -203,6 +203,9 @@ public:
 		operator=(s);
 	}
 
+	bool is_relative(){
+		return false;
+	}
 
 
 	std::string str(){
@@ -331,7 +334,7 @@ public:
 
 #elif BOOST_PRECOMPILED
 
-		boost::filesystem::path p(dir());	//create a path from the current filename
+		boost::filesystem::path p(path());	//create a path from the current filename
 		std::vector<stim::filename> file_list;
 		if(boost::filesystem::exists(p)){
 			if(boost::filesystem::is_directory(p)){
@@ -344,9 +347,9 @@ public:
 				for (vec::const_iterator it(v.begin()), it_end(v.end()); it != it_end; ++it)
 				{
 					//if the filename is a wild card *or* it matches the read file name
-					if( prefix == "*" || prefix == (*it).filename().stem().string()){
+					if( _prefix == "*" || _prefix == (*it).filename().stem().string()){
 						//if the extension is a wild card *or* it matches the read file extension
-						if( ext == "*" || "." + ext == (*it).filename().extension().string()){
+						if( _extension == "*" || "." + _extension == (*it).filename().extension().string()){
 							file_list.push_back((*it).string());	//include it in the final list
 						}
 
@@ -368,4 +371,4 @@ public:
 	}
 };				//end filename
 }				//end namespace stim
-#endif
\ No newline at end of file
+#endif
--
libgit2 0.21.4