--- MITgcm/tools/genmake2	2011/01/15 19:16:32	1.219
+++ MITgcm/tools/genmake2	2011/06/03 19:53:45	1.220
@@ -1,6 +1,6 @@
 #! /usr/bin/env bash
 #
-# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/genmake2,v 1.219 2011/01/15 19:16:32 jmc Exp $
+# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/genmake2,v 1.220 2011/06/03 19:53:45 jmc Exp $
 # $Name:  $
 #
 # Makefile generator for MITgcm UV codes
@@ -96,11 +96,6 @@
           will search for a working compiler by trying a list of
           "usual suspects" such as gcc, c89, cc, etc.
 
-    -[no]ieee | --[no]ieee
-          Do or don't use IEEE numerics.  Note that this option
-          *only* works if it is supported by the OPTFILE that
-          is being used.
-
     -use_real4 | -use_r4 | -ur4 | --use_real4 | --use_r4 | --ur4
           Use "real*4" type for _RS variable (#undef REAL4_IS_SLOW)
           *only* works if CPP_EEOPTIONS.h allows this.
@@ -126,10 +121,14 @@
     -hpmt | --hpmt
           Performance analysis with the HPM Toolkit
 
-    -gsl | --gsl
-          Use GSL to control floating point rounding and precision
+    -ieee | --ieee
+          use IEEE numerics.  Note that this option *only* works
+          if it is supported by the OPTFILE that is being used.
     -devel | --devel
           Add additional warning and debugging flags for development
+          (if supported by the OPTFILE); also switch to IEEE numerics.
+    -gsl | --gsl
+          Use GSL to control floating point rounding and precision
 
     -mpi | --mpi
           Include MPI header files and link to MPI libraries
@@ -1147,7 +1146,7 @@
 
 #  The following state can be set directly by command-line switches
 gm_s1="OPTFILE PKG_DEPEND PKG_GROUPS MAKEFILE MAKEDEPEND PLATFORM ROOTDIR MODS DISABLE ENABLE"
-gm_s2="FC CC IEEE USE_R4 TS PAPIS PCLS PAPI PCL HPMT GSL DEVEL MPI OMP DUMPSTATE STANDARDDIRS"
+gm_s2="FC CC USE_R4 TS PAPIS PCLS PAPI PCL HPMT IEEE DEVEL GSL MPI OMP DUMPSTATE STANDARDDIRS"
 
 #  The following state is not directly set by command-line switches
 gm_s3="LN S64 LINK MAKE PACKAGES INCLUDES FFLAGS FOPTIM FEXTRAFLAGS"
@@ -1311,13 +1310,17 @@
 	-fs90=* | --fs90=*)
 	    FS90=$ac_optarg ;;
 	
+	-use_real4 | -use_r4 | -ur4 | --use_real4 | --use_r4 | --ur4 )
+	    USE_R4=true ;;
+
 	-ieee | --ieee)
 	    IEEE=true ;;
 	-noieee | --noieee)
-	    IEEE= ;;
-
-	-use_real4 | -use_r4 | -ur4 | --use_real4 | --use_r4 | --ur4 )
-	    USE_R4=true ;;
+	    echo "Warning: ignore option '$ac_option' (default is already without '-ieee')" ;;
+        -devel | --devel)
+	    IEEE=true ; DEVEL=true ;;
+        -gsl | --gsl)
+	    GSL=true ;;
 
 	-ts | --ts)
 	    TS=true ;;
@@ -1334,12 +1337,6 @@
 	-hpmt | --hpmt)
 	    HPMT=true ;;
 
-        -gsl | --gsl)
-	    GSL=true ;;
-
-        -devel | --devel)
-	    DEVEL=true ;;
-
 	-mpi | --mpi)
 	    MPI=true ;;
 	-mpi=* | --mpi=*)
@@ -1390,7 +1387,7 @@
     echo "WARNING: genmake2 has detected a copy of the old-style \"./.genmakerc\""
     echo "  file.  This file format is no longer supported.  For directions on"
     echo "  how to setup and use the new \"genmake2\" script, please see:"
-    echo "    http://mitgcm.org/devel_HOWTO/"
+    echo "    http://mitgcm.org/public/devel_HOWTO/"
     echo "  and send an email to MITgcm-support@mitgcm.org if you need help."
     echo "WARNING: ignore \"./.genmakerc\" and continue."
     echo