--- MITgcm/tools/f90mkdepend	2010/04/30 19:55:17	1.4
+++ MITgcm/tools/f90mkdepend	2010/05/01 17:48:17	1.5
@@ -1,10 +1,10 @@
 #!/bin/bash
-# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/f90mkdepend,v 1.4 2010/04/30 19:55:17 jahn Exp $
+# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/f90mkdepend,v 1.5 2010/05/01 17:48:17 jahn Exp $
 # $Name:  $
 #
 # Generate some make file dependency entries for a Fortran 90 file that employs "use".
 #
-# For every "use" statement, generate a dependency on lowercase(modulename).o
+# For every "use" statement, generate a dependency on tolower(modulename).o
 #
 # Note: We assume that the name of a module and the same of source are the same.
 #       The name of the source file should be all lower case (except for the extension).
@@ -16,7 +16,7 @@
 
 for filename in *.F90 *.F *.h; do
   # quick check for "use" to speed up processing
-  if grep -q -i '^ *use ' $filename; then
+  if grep -i '^ *use ' $filename > /dev/null; then
     # extract module name in lower case
     modreflist=$(grep -i '^ *use ' $filename | awk '{sub(/,.*/,"",$2); print tolower($2)}')