diff --git a/src/.gitignore b/src/.gitignore
new file mode 100644
index 00000000..5761abcf
--- /dev/null
+++ b/src/.gitignore
@@ -0,0 +1 @@
+*.o
diff --git a/src/README.md b/src/README.md
new file mode 100644
index 00000000..8048434a
--- /dev/null
+++ b/src/README.md
@@ -0,0 +1,9 @@
+Linux Compilation Instructions
+==============================
+
+Type `make` on the command line to initiate compilation.
+
+It may be necessary to modify `makefile`:
+
+ * Uncomment the line `INCDIRS=-I/usr/lib/openmpi/include -I/usr/include/gdal`
+ * On the line beginning with `all :` remove the `clean` target from the end
\ No newline at end of file
diff --git a/src/flood.cpp b/src/flood.cpp
index 13b3bb29..505823e4 100644
--- a/src/flood.cpp
+++ b/src/flood.cpp
@@ -113,7 +113,7 @@ int flood( char* demfile, char* felfile, char *sfdrfile, int usesfdr, bool verbo
 	if(verbose)  // debug writes
 	{
 		printf("Header read\n");
-		printf("Process: %d, totalX: %d, totalY: %d\n",rank,totalX,totalY);
+		printf("Process: %d, totalX: %ld, totalY: %ld\n",rank,totalX,totalY);
 		printf("Process: %d, nx: %d, ny: %d\n",rank,nx,ny);
 		printf("Process: %d, xstart: %d, ystart: %d\n",rank,xstart,ystart);
     if (use_mask)
@@ -149,7 +149,7 @@ int flood( char* demfile, char* felfile, char *sfdrfile, int usesfdr, bool verbo
 		long nxm=nx/2;
 		long nym=ny/2;
 		elevDEM->getData(nxm,nym,tempFloat);
-		printf("Midpoint of partition: %d, nxm: %d, nym: %d, value: %f\n",rank,nxm,nym,tempFloat);
+		printf("Midpoint of partition: %d, nxm: %ld, nym: %ld, value: %f\n",rank,nxm,nym,tempFloat);
 		fflush(stdout);
 	}
 	
@@ -486,7 +486,7 @@ int flood( char* demfile, char* felfile, char *sfdrfile, int usesfdr, bool verbo
 		long nxm=nx/2;
 		long nym=ny/2;
 		planchon->getData(nxm,nym,tempFloat);
-		printf("Result midpoint of partition: %ld, nxm: %ld, nym: %d, value: %f\n",rank,nxm,nym,tempFloat);
+		printf("Result midpoint of partition: %d, nxm: %ld, nym: %ld, value: %f\n",rank,nxm,nym,tempFloat);
 		fflush(stdout);
 	}
 
diff --git a/src/streamnet.cpp b/src/streamnet.cpp
index 722c6776..d690bb39 100644
--- a/src/streamnet.cpp
+++ b/src/streamnet.cpp
@@ -498,7 +498,7 @@ int netsetup(char *pfile,char *srcfile,char *ordfile,char *ad8file,char *elevfil
 		if(verbose)  // debug writes
 		{
 			printf("Files read\n");
-			printf("Process: %d, TotalX: %d, TotalY: %d\n",rank,TotalX,TotalY);
+			printf("Process: %d, TotalX: %ld, TotalY: %ld\n",rank,TotalX,TotalY);
 			printf("Process: %d, nx: %d, ny: %d\n",rank,nx,ny);
 			printf("Process: %d, xstart: %d, ystart: %d\n",rank,xstart,ystart);
 			printf("Process: %d, numOutlets: %d\n",rank,numOutlets);
@@ -1131,7 +1131,7 @@ int netsetup(char *pfile,char *srcfile,char *ordfile,char *ad8file,char *elevfil
 			long dotinc=myNumLinks/ndots;
 
 			for(ilink=0;ilink<myNumLinks;ilink++){//only once per link
-				fprintf(fTreeOut,"\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n",LinkIdU1U2DMagShapeidCoords[ilink][0],LinkIdU1U2DMagShapeidCoords[ilink][1],LinkIdU1U2DMagShapeidCoords[ilink][2],LinkIdU1U2DMagShapeidCoords[ilink][3],LinkIdU1U2DMagShapeidCoords[ilink][4],LinkIdU1U2DMagShapeidCoords[ilink][5],LinkIdU1U2DMagShapeidCoords[ilink][6],LinkIdU1U2DMagShapeidCoords[ilink][7],LinkIdU1U2DMagShapeidCoords[ilink][8]);
+				fprintf(fTreeOut,"\t%ld\t%ld\t%ld\t%ld\t%ld\t%ld\t%ld\t%ld\t%ld\n",LinkIdU1U2DMagShapeidCoords[ilink][0],LinkIdU1U2DMagShapeidCoords[ilink][1],LinkIdU1U2DMagShapeidCoords[ilink][2],LinkIdU1U2DMagShapeidCoords[ilink][3],LinkIdU1U2DMagShapeidCoords[ilink][4],LinkIdU1U2DMagShapeidCoords[ilink][5],LinkIdU1U2DMagShapeidCoords[ilink][6],LinkIdU1U2DMagShapeidCoords[ilink][7],LinkIdU1U2DMagShapeidCoords[ilink][8]);
 				//fflush(fTreeOut);
 				long i1=LinkIdU1U2DMagShapeidCoords[ilink][1];
 				long i2=LinkIdU1U2DMagShapeidCoords[ilink][2];
@@ -1183,7 +1183,7 @@ int netsetup(char *pfile,char *srcfile,char *ordfile,char *ad8file,char *elevfil
 					nextdot=0;
 					for(ilink=0;ilink<procNumLinks;++ilink){
 						MPI_Recv(&treeBuf,9,MPI_LONG,i,1,MCW,&mystatus);
-						fprintf(fTreeOut,"\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n",treeBuf[0],treeBuf[1]+numPointsPrinted,treeBuf[2]+numPointsPrinted,treeBuf[3],treeBuf[4],treeBuf[5],treeBuf[6],treeBuf[7],treeBuf[8]);
+						fprintf(fTreeOut,"\t%ld\t%ld\t%ld\t%ld\t%ld\t%ld\t%ld\t%ld\t%ld\n",treeBuf[0],treeBuf[1]+numPointsPrinted,treeBuf[2]+numPointsPrinted,treeBuf[3],treeBuf[4],treeBuf[5],treeBuf[6],treeBuf[7],treeBuf[8]);
 
 						MPI_Recv(&procNumPoints,1,MPI_INT,i,0,MCW,&mystatus);//get points one at a time and print them to file
 				// Variables for shape
diff --git a/src/streamnetmn.cpp b/src/streamnetmn.cpp
index 2e49a478..39240572 100644
--- a/src/streamnetmn.cpp
+++ b/src/streamnetmn.cpp
@@ -167,7 +167,7 @@ int main(int argc,char **argv)
 			i++;
 			if(argc > i)
 			{
-				sscanf(argv[i],"%d",&lyrno);
+				sscanf(argv[i],"%ld",&lyrno);
 				i++;											
 			}
 			else goto errexit;
diff --git a/src/tiffIO.cpp b/src/tiffIO.cpp
index cae63824..cb80a458 100644
--- a/src/tiffIO.cpp
+++ b/src/tiffIO.cpp
@@ -46,7 +46,7 @@ email:  dtarb@usu.edu
 #include "ogr_api.h"
 // #include "tiffIO.h"  Part of commonLib.h
 #include <ogr_spatialref.h>
-#include<math.h>;
+#include <math.h>
 #include "commonLib.h"
 #include <iostream>
 using namespace std;