Index: /issm/trunk-jpl/src/m/coordsystems/gdaltransform.m
===================================================================
--- /issm/trunk-jpl/src/m/coordsystems/gdaltransform.m	(revision 20519)
+++ /issm/trunk-jpl/src/m/coordsystems/gdaltransform.m	(revision 20520)
@@ -23,4 +23,7 @@
 
 	[s,r]=system(['gdaltransform -s_srs ',proj_in,' -t_srs ',proj_out,'  < ' temproot '/.rand1234.txt > ' temproot '/.rand1235.txt']);
+	if s~=0 | ~isempty(deblank(r)),
+		error(r);
+	end
 	A=textread([temproot '/.rand1235.txt']);
 	xout=A(:,1);