--- /Users/Shared/src/GRASS/svn/grass/scripts/r.in.srtm/r.in.srtm	2007-12-12 09:08:44.000000000 -0600
+++ /Applications/GRASS-6.3.app/Contents/MacOS/scripts/r.in.srtm	2008-02-05 15:56:00.000000000 -0600
@@ -134,7 +134,7 @@
     fi
 
     # really a ZIP file?
-    if [ "`file -ib "$FILE.hgt.zip"`" != "application/x-zip" ] ; then
+    if [ "`file -b --mime "$FILE.hgt.zip"`" != "application/x-zip" ] ; then
 	g.message -e "'$FILE.hgt.zip' does not appear to be a valid zip file."
 	exit 1
     fi