diff --git a/stim/envi/binary.h b/stim/envi/binary.h
index e2eb6b4..1c0dc6c 100644
--- a/stim/envi/binary.h
+++ b/stim/envi/binary.h
@@ -542,7 +542,7 @@ public:
 		size_t size_bytes = sx * sy * sz * sizeof(T);					//size of the block to read in bytes
 
 		size_t start = z * R[0] * R[1] + y * R[0] + x;						//calculate the start postion
-		size_t start_bytes = start * sizeof(T);							//start position in bytes
+		//size_t start_bytes = start * sizeof(T);							//start position in bytes
 		file.seekg(start * sizeof(T), std::ios::beg);					//seek to the start position
 
 		
diff --git a/stim/envi/envi.h b/stim/envi/envi.h
index 28e58bd..dc04811 100644
--- a/stim/envi/envi.h
+++ b/stim/envi/envi.h
@@ -110,6 +110,7 @@ public:
 			std::cout << "ERROR: unidentified file type" << std::endl;
 			exit(1);
 		}
+		return false;
 	}
 
 	//test to determine if the specified file is an ENVI file
@@ -1993,7 +1994,7 @@ public:
 
 	void fft(std::string outfile, double band_min, double band_max, size_t samples = 0, void* ratio = NULL, size_t rx = 0, size_t ry = 0, bool PROGRESS = false, int cuda_device = 0){
 		if(samples == 0) samples = header.bands;
-		double B = (double)header.bands;
+		//double B = (double)header.bands;
 		double delta = header.wavelength[1] - header.wavelength[0];					//calculate spacing in the current domain
 		double span = samples * delta;											//calculate the span in the current domain
 		double fft_delta = 1.0 / span;												//calculate the span in the FFT domain
--
libgit2 0.21.4