--- MITgcm/tools/genmake2	2004/06/30 01:19:29	1.82
+++ MITgcm/tools/genmake2	2004/08/09 02:28:51	1.96
@@ -1,6 +1,6 @@
-#! /usr/bin/env sh
+#! /usr/bin/env bash
 #
-# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/genmake2,v 1.82 2004/06/30 01:19:29 cnh Exp $
+# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/genmake2,v 1.96 2004/08/09 02:28:51 edhill Exp $
 #
 # Makefile generator for MITgcm UV codes
 #   created  by cnh 03/98
@@ -122,7 +122,7 @@
       stop
       end
 EOF
-    test -e Makefile  &&  mv -f Makefile Makefile.bak
+    test -f Makefile  &&  mv -f Makefile Makefile.bak
     cat <<EOF >> Makefile
 %.$tfs : %.F
 .SUFFIXES:
@@ -131,7 +131,7 @@
 EOF
     $MAKE "genmake_hello."$tfs > /dev/null 2>&1
     RETVAL=$?
-    if test "x$RETVAL" != x0 -o ! -e "genmake_hello."$tfs ; then
+    if test "x$RETVAL" != x0 -o ! -f "genmake_hello."$tfs ; then
 	if test "x$FS" = x ; then
 	    FS='for'
 	    FS90='fr9'
@@ -149,7 +149,7 @@
 	fi
     fi
     rm -f genmake_hello.* Makefile
-    test -e Makefile  &&  mv -f Makefile.bak Makefile
+    test -f Makefile  &&  mv -f Makefile.bak Makefile
 
     #  If we make it here, use the extensions
     FS=$tfs
@@ -158,6 +158,85 @@
 }
 
 
+look_for_makedepend()  {
+
+    #  The "original" makedepend is part of the Imake system that is
+    #  most often distributed with XFree86 or with an XFree86 source
+    #  package.  As a result, many machines (eg. generic Linux) do not
+    #  have a system-default "makedepend" available.  For those
+    #  systems, we have two fall-back options:
+    #
+    #    1) a makedepend implementation shipped with the cyrus-imapd
+    #       package:  ftp://ftp.andrew.cmu.edu/pub/cyrus-mail/
+    #
+    #    2) a known-buggy xmakedpend shell script
+    #
+    #  So the choices are, in order:
+    #
+    #    1) use the user-specified program
+    #    2) use a system-wide default
+    #    3) locally build and use the cyrus implementation
+    #    4) fall back to the buggy local xmakedpend script
+    #
+    if test "x${MAKEDEPEND}" = x ; then
+	which makedepend > /dev/null 2>&1
+	RV0=$?
+	cat <<EOF >> genmake_tc.f
+      program test
+      write(*,*) 'test'
+      stop
+      end
+EOF
+	makedepend genmake_tc.f > /dev/null 2>&1
+	RV1=$?
+	if test "x${RV0}${RV1}" = x00 ; then
+	    MAKEDEPEND=makedepend
+	else
+	    echo "    a system-default makedepend was not found."
+	    
+	    #  Try to build the cyrus implementation
+	    build_cyrus_makedepend
+	    RETVAL=$?
+	    if test "x$RETVAL" != x0 ; then
+		MAKEDEPEND='$(TOOLSDIR)/xmakedepend'
+	    fi
+	    rm -f ./genmake_cy_md
+	fi
+    else
+	#  echo "MAKEDEPEND=${MAKEDEPEND}"
+	echo "${MAKEDEPEND}" | grep -i cyrus > /dev/null 2>&1
+	RETVAL=$?
+	if test x"$RETVAL" = x0 ; then
+	    build_cyrus_makedepend
+	fi
+    fi
+}
+
+
+build_cyrus_makedepend()  {
+    rm -f ./genmake_cy_md
+    (
+	cd $ROOTDIR/tools/cyrus-imapd-makedepend  \
+	    &&  ./configure > /dev/null 2>&1  \
+	    &&  make > /dev/null 2>&1
+	if test -x ./makedepend.exe ; then
+	    $LN ./makedepend.exe ./makedepend
+	fi
+	./makedepend ifparser.c > /dev/null 2>&1  \
+	    &&  echo "true"
+    ) > ./genmake_cy_md
+    grep true ./genmake_cy_md > /dev/null 2>&1
+    RETVAL=$?
+    rm -f ./genmake_cy_md
+    if test "x$RETVAL" = x0 ; then
+	MAKEDEPEND='$(TOOLSDIR)/cyrus-imapd-makedepend/makedepend'
+	return 0
+    else
+	echo "WARNING: unable to build cyrus-imapd-makedepend"
+	return 1
+    fi
+}
+
 # Guess possible config options for this host
 find_possible_configs()  {
 
@@ -188,62 +267,49 @@
 	CPP="cpp -traditional -P"
     fi
 
-    #  The "original" makedepend is part of the Imake system that is
-    #  most often distributed with XFree86 or with an XFree86 source
-    #  package.  As a result, many machines (eg. generic Linux) do not
-    #  have a system-default "makedepend" available.  For those
-    #  systems, we have two fall-back options:
-    #
-    #    1) a makedepend implementation shipped with the cyrus-imapd
-    #       package:  ftp://ftp.andrew.cmu.edu/pub/cyrus-mail/
-    #
-    #    2) a known-buggy xmakedpend shell script
-    #
-    #  So the choices are, in order:
-    #
-    #    1) use the user-specified program
-    #    2) use a system-wide default
-    #    3) locally build and use the cyrus implementation
-    #    4) fall back to the buggy local xmakedpend script
-    #
-    if test "x${MAKEDEPEND}" = x ; then
-      which makedepend > /dev/null 2>&1
-      RV0=$?
-      cat <<EOF >> genmake_tc.f
-      program test
-      write(*,*) 'test'
-      stop
-      end
+    look_for_makedepend
+
+    #================================================================
+    #  look for possible C compilers
+    tmp="$MITGCM_CC $CC gcc c89 cc c99 mpicc"
+    p_CC=
+    for c in $tmp ; do
+	rm -f ./genmake_hello.c  ./genmake_hello
+	cat >> genmake_hello.c << EOF
+#include <stdio.h>
+int main(int argc, char **argv) {
+  printf("Hello!\n");
+  return 0;
+}
 EOF
-      makedepend genmake_tc.f > /dev/null 2>&1
-      RV1=$?
-      if test ! "x${RV0}${RV1}" = x00 ; then
-         echo "    a system-default makedepend was not found."
-
-	 #  Try to build the cyrus impl
-	 rm -f ./genmake_cy_md
-	 (
-	     cd $ROOTDIR/tools/cyrus-imapd-makedepend  \
-		 &&  ./configure > /dev/null 2>&1  \
-		 &&  make > /dev/null 2>&1
-	     if test -x ./makedepend.exe ; then
-		 $LN ./makedepend.exe ./makedepend
-	     fi
-	     ./makedepend ifparser.c > /dev/null 2>&1  \
-		 &&  echo "true"
-	 ) > ./genmake_cy_md
-	 grep true ./genmake_cy_md > /dev/null 2>&1
-	 RETVAL=$?
-	 if test "x$RETVAL" = x0 ; then
-	     MAKEDEPEND='$(TOOLSDIR)/cyrus-imapd-makedepend/makedepend'
-	 else
-	     MAKEDEPEND='$(TOOLSDIR)/xmakedepend'
-	 fi
-	 rm -f ./genmake_cy_md
-      fi
+	$c -o genmake_hello genmake_hello.c > /dev/null 2>&1
+	RETVAL=$?
+	if test "x${RETVAL}" = x0 ; then
+	    p_CC="$p_CC $c"
+	fi
+    done
+    rm -f ./genmake_hello.c ./genmake_hello
+    if test "x${p_CC}" = x ; then
+	cat 1>&2 <<EOF
+
+Error: No C compilers were found in your path.  Please specify one using:
+
+    1) an "optfile" on (eg. "-optfile=path/to/OPTFILE"),
+    2) the CC or MITGCM_CC environment variables.
+
+EOF
+	exit 1
+    else
+	echo "  The possible C compilers found in your path are:"
+	echo "   "$p_CC
+	if test "x$CC" = x ; then
+	    CC=`echo $p_CC | $AWK '{print $1}'`
+	    echo "  Setting C compiler to: "$CC
+	fi
     fi
 
-    # look for possible fortran compilers
+    #================================================================
+    #  look for possible FORTRAN compilers
     tmp="$MITGCM_FC $FC efc g77 f77 pgf77 pgf95 ifc f90 f95 mpif77 mpf77 mpxlf95"
     p_FC=
     for c in $tmp ; do
@@ -269,7 +335,7 @@
 
     1) an "optfile" on (eg. "-optfile=path/to/OPTFILE"),
     2) a command-line option (eg. "-fc NAME"), or
-    3) the MITGCM_FC environment variable.
+    3) the FC or MITGCM_FC environment variables.
 
 EOF
 	exit 1
@@ -440,6 +506,11 @@
           will search for a working compiler by trying a list of
           "usual suspects" such as g77, f77, etc.
 
+    -cc NAME | --cc NAME | -cc=NAME | --cc=NAME
+          Use "NAME" as the C compiler.  By default, genmake 
+          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 
@@ -449,8 +520,8 @@
           Include MPI header files and link to MPI libraries
     -mpi=PATH | --mpi=PATH
           Include MPI header files and link to MPI libraries using MPI_ROOT
-          set to PATH. i.e. Include files from $PATH/include, link to libraries
-          from $PATH/lib and use binaries from $PATH/bin.
+          set to PATH. i.e. Include files from \$PATH/include, link to libraries
+          from \$PATH/lib and use binaries from \$PATH/bin.
 
     -bash NAME
           Explicitly specify the Bourne or BASH shell to use
@@ -475,6 +546,12 @@
 
 #  Build a CPP macro to automate calling C routines from FORTRAN
 get_fortran_c_namemangling()  {
+
+    #echo "FC_NAMEMANGLE = \"$FC_NAMEMANGLE\""
+    if test ! "x$FC_NAMEMANGLE" = x ; then
+        return 0
+    fi
+
     default_nm="#define FC_NAMEMANGLE(X) X ## _"
     
     cat > genmake_test.c <<EOF
@@ -492,7 +569,7 @@
 EOF
 	return 1
     fi
-    c_tcall=`nm genmake_test.o | grep 'T ' | grep tcall | cut -d ' ' -f 3`
+    c_tcall=`nm genmake_test.o 2>/dev/null | grep 'T ' | grep tcall | cut -d ' ' -f 3`
     RETVAL=$?
     if test "x$RETVAL" != x0 ; then
 	FC_NAMEMANGLE=$default_nm
@@ -522,7 +599,7 @@
 EOF
 	return 1
     fi
-    f_tcall=`nm genmake_tcomp.o | grep 'T ' | grep tcall | cut -d ' ' -f 3`
+    f_tcall=`nm genmake_tcomp.o 2>/dev/null | grep 'T ' | grep tcall | cut -d ' ' -f 3`
     RETVAL=$?
     if test "x$RETVAL" != x0 ; then
 	FC_NAMEMANGLE=$default_nm
@@ -599,6 +676,7 @@
 
 
 check_netcdf_libs()  {
+    echo "" > genmake_tnc.log
     cat <<EOF > genmake_tnc.for
       program fgennc
 #include "netcdf.inc"
@@ -611,8 +689,12 @@
       IF (iret .NE. NF_NOERR) write(*,*) NF_STRERROR(iret)
       end
 EOF
-    $CPP genmake_tnc.for > genmake_tnc.f  \
-	&&  $FC $FFLAGS $FOPTIM -o genmake_tnc genmake_tnc.f $LIBS >> genmake_tnc.log 2>&1
+    #echo "$CPP $DEFINES $INCLUDES genmake_tnc.for > genmake_tnc.f"
+    #echo "$FC $FFLAGS $FOPTIM -c genmake_tnc.f"
+    #echo "$LINK -o genmake_tnc.o $LIBS"
+    $CPP $DEFINES $INCLUDES genmake_tnc.for > genmake_tnc.f 2>/dev/null  \
+	&&  $FC $FFLAGS $FOPTIM -c genmake_tnc.f  \
+	&&  $LINK -o genmake_tnc genmake_tnc.o $LIBS >> genmake_tnc.log 2>&1
     RET_COMPILE=$?
     test -x ./genmake_tnc  &&  ./genmake_tnc >> genmake_tnc.log 2>&1
     RETVAL=$?
@@ -620,7 +702,7 @@
 	HAVE_NETCDF=t
     else
 	# try again with "-lnetcdf" added to the libs
-	$CPP genmake_tnc.for > genmake_tnc.f  \
+	$CPP $DEFINES $INCLUDES genmake_tnc.for > genmake_tnc.f 2>/dev/null  \
 	    &&  $FC $FFLAGS $FOPTIM -o genmake_tnc genmake_tnc.f \
 	    $LIBS -lnetcdf >> genmake_tnc_2.log 2>&1
 	RET_COMPILE=$?
@@ -650,6 +732,7 @@
 S64=
 KPP=
 FC=
+#CC=gcc
 CPP=
 LINK=
 DEFINES=
@@ -657,7 +740,7 @@
 ENABLE=
 DISABLE=
 MAKEFILE=
-MAKEDEPEND=
+#MAKEDEPEND=
 PDEPEND=
 DUMPSTATE=t
 PDEFAULT=
@@ -763,7 +846,7 @@
     fi
 done
 printf "  getting local config information:  "
-if test -e $gm_local ; then
+if test -f $gm_local ; then
     echo "using $gm_local"
     . $gm_local
     # echo "DISABLE=$DISABLE"
@@ -784,7 +867,7 @@
 #done
 #parse_options
 ac_prev=
-for ac_option ; do
+for ac_option in $@ ; do
 
     G2ARGS="$G2ARGS \"$ac_option\""
 
@@ -880,7 +963,12 @@
 #		ac_prev=cpp ;;
 #	    -cpp=* | --cpp=*)
 #		CPP=$ac_optarg ;;
-	    
+	
+	-cc | --cc)
+	    ac_prev=CC ;;
+	-cc=* | --cc=*)
+	    CC=$ac_optarg ;;
+	
 	-fortran | --fortran | -fc | --fc)
 	    ac_prev=FC ;;
 	-fc=* | --fc=*)
@@ -952,7 +1040,8 @@
 fi
 
 if test "x${ROOTDIR}" = x ; then
-    if test "${PWD##/*/}" = "bin" -a -d ../model -a -d ../eesup -a -d ../pkg ; then
+    tmp=`echo $PWD | sed -e 's/\// /g' | awk '{print $NR}'`
+    if test "x$tmp" = "xbin" -a -d ../model -a -d ../eesup -a -d ../pkg ; then
 	ROOTDIR=".."
     else
 	for d in . .. ../.. ../../.. ../../../.. ../../../../.. ; do
@@ -1035,7 +1124,7 @@
     fi
 fi
 
-#  Check that FC, LINK, CPP, S64, LN, and MAKE are defined.  If not,
+#  Check that FC, CC, LINK, CPP, S64, LN, and MAKE are defined.  If not,
 #  either set defaults or complain and abort!
 if test ! "x$BASH" = x ; then
     # add a trailing space so that it works within the Makefile syntax (see below)
@@ -1051,6 +1140,16 @@
 EOF
     exit 1
 fi
+if test "x$CC" = x ; then
+    CC=cc
+#     cat <<EOF 1>&2
+# Error: no C compiler: please specify using one of the following:
+#   1) within the options file ("CC=...") as specified by "-of=OPTFILE"
+#   2) the "-cc=XXX" command-line option
+#   3) the "./genmake_local" file
+# EOF
+#     exit 1
+fi
 if test "x$LINK" = x ; then
     LINK=$FC
 fi
@@ -1085,9 +1184,7 @@
 else
     rm -f test_cpp
 fi
-if test "x$MAKEDEPEND" = x ; then
-    MAKEDEPEND=makedepend
-fi
+look_for_makedepend
 if test "x$LN" = x ; then
     LN="ln -s"
 fi
@@ -1216,7 +1313,8 @@
 fi
 
 if test "x${EXEDIR}" = x ; then
-    if test "${PWD##/*/}" = "bin" -a -d ../exe -a $ROOTDIR = .. ; then
+    tmp=`echo $PWD | sed -e 's/\// /g' | awk '{print $NR}'`
+    if test "x$tmp" = "xbin" -a -d ../exe -a $ROOTDIR = .. ; then
 	EXEDIR=../exe
     else
 	EXEDIR=.
@@ -1334,7 +1432,8 @@
 	    PACKAGES="$PACKAGES $i"
 	done
 	echo "    before group expansion packages are: $PACKAGES"
-	while ! expand_pkg_groups; do echo > /dev/null; done
+	RET=1
+        while test $RET = 1 ; do expand_pkg_groups; RET=$?; done
 	echo "    after group expansion packages are:  $PACKAGES"
     fi
 fi
@@ -1443,7 +1542,8 @@
 	    echo "  the dependency rules for \"$dname\""
 	    exit 1
 	fi
-	i=$(( $i + 1 ))
+        i=`echo "$i + 1" | bc -l`
+	#i=$(( $i + 1 ))
     done
     ck=$ck"t"
 done
@@ -1605,9 +1705,7 @@
 echo "===  Creating the Makefile  ==="
 echo "  setting INCLUDES"
 for i in $INCLUDEDIRS ; do
-    if ! test -d $i ; then
-#	INCLUDES="$INCLUDES -I$i"
-#   else
+    if test ! -d $i ; then
 	echo "Warning: can't find INCLUDEDIRS=\"$i\""
     fi
 done
@@ -1682,7 +1780,7 @@
 echo "" >> hlist.inc
 echo "" >> ad_flow_files.inc
 
-if test -e $MAKEFILE ; then
+if test -f $MAKEFILE ; then
     mv -f $MAKEFILE "$MAKEFILE.bak"
 fi
 echo "  Writing makefile: $MAKEFILE"
@@ -1758,6 +1856,8 @@
 FC = ${FC}
 # Fortran compiler
 F90C = ${F90C}
+# C compiler
+CC = ${CC}
 # Link editor
 LINK = ${LINK} ${LDADD}
 
@@ -1797,7 +1897,7 @@
 echo 'OBJFILES =  $(SRCFILES:.F=.o) $(CSRCFILES:.c=.o) $(F90SRCFILES:.F90=.o)' >> $MAKEFILE
 echo >> $MAKEFILE
 echo '.SUFFIXES:' >> $MAKEFILE
-echo '.SUFFIXES: .o .F .p .'$FS' .c .F90 .'$FS90 >> $MAKEFILE
+echo '.SUFFIXES: .o .'$FS' .p .F .c .'$FS90' .F90' >> $MAKEFILE
 rm -f srclist.inc csrclist.inc hlist.inc flist.tmp clist.tmp f90srclist.inc
 rm -f ad_flow_files.inc