--- MITgcm/tools/genmake2	2003/10/23 04:41:41	1.22
+++ MITgcm/tools/genmake2	2003/11/14 02:48:18	1.36
@@ -1,6 +1,6 @@
-#!/bin/bash
+#!/bin/sh
 #
-# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/genmake2,v 1.22 2003/10/23 04:41:41 edhill Exp $
+# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/genmake2,v 1.36 2003/11/14 02:48:18 edhill Exp $
 #
 # Makefile generator for MITgcm UV codes
 #   created  by cnh 03/98
@@ -72,7 +72,8 @@
 
     tmp1=`uname`"_"`uname -m`
     tmp2=`echo $tmp1 | sed -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
-    PLATFORM=`echo $tmp2 | sed -e 's/i[3-6]86/ia32/' | sed -e 's/athlon/ia32/'`
+    tmp3=`echo $tmp2 | sed -e 's/power macintosh/ppc/'`
+    PLATFORM=`echo $tmp3 | sed -e 's/i[3-6]86/ia32/' | sed -e 's/athlon/ia32/'`
     OFLIST=`(cd $ROOTDIR/tools/build_options; ls | grep "^$PLATFORM")`
     echo "  The platform appears to be:  $PLATFORM"
 #     if test "x$OFLIST" = x ; then
@@ -103,8 +104,18 @@
 	CPP="cpp -traditional -P"
     fi
 
+    # makedepend is not always available
+    if test "x${MAKEDEPEND}" = x ; then
+      which makedepend >& /dev/null
+      RETVAL=$?
+      if test "x${RETVAL}" = x1 ; then
+         echo "    makedepend was not found. Using xmakedpend instead."
+         MAKEDEPEND='$(TOOLSDIR)/xmakedepend'
+      fi
+    fi
+
     # look for possible fortran compilers
-    tmp="$MITGCM_FC $FC g77 f77 pgf77 pgf95 ifc f90 f95 mpif77 mpf77 mpxlf95"
+    tmp="$MITGCM_FC $FC efc g77 f77 pgf77 pgf95 ifc f90 f95 mpif77 mpf77 mpxlf95"
     p_FC=
     for c in $tmp ; do
 	rm -f ./hello.f ./hello
@@ -205,7 +216,7 @@
     cat $1 | sed -e 's/#.*$//g' \
 	| $AWK 'BEGIN{nn=0;} (NF>0){ for(i=2;i<=NF;i++){nn++; print "PNAME["nn"]="$1"\nDNAME["nn"]="$i} }' \
 	> ./.pd_tmp
-    source ./.pd_tmp
+    . ./.pd_tmp
     rm -f ./.pd_tmp
 
     echo -n "PNAME = "${}
@@ -263,24 +274,84 @@
     exit 1
 }
 
-#eh3 # This is the generic configuration.
-#eh3 set LN         = ( 'ln -s' )
-#eh3 set CPP        = ( '/lib/cpp -P' )
-#eh3 set S64        = ( '$(TOOLSDIR)/set64bitConst.sh' )
-#eh3 set KPP        = (  )
-#eh3 set FC         = ( 'f77' )
-#eh3 set LINK       = $FC
-#eh3 set MAKEDEPEND = ( 'makedepend' )
-#eh3 set INCLUDES   = ( -I. )
-#eh3 set FFLAGS     = (  )
-#eh3 set FOPTIM     = (  )
-#eh3 set CFLAGS     = (  )
-#eh3 set KFLAGS1    = (  )
-#eh3 set KFLAGS2    = (  )
-#eh3 set LIBS       = (  )
-#eh3 set KPPFILES   = (  )
-#eh3 if (! $?NOOPTFILES ) set NOOPTFILES = (  )
-#eh3 if (! $?NOOPTFLAGS ) set NOOPTFLAGS = (  )
+#  Build a CPP macro to automate calling C routines from FORTRAN
+get_fortran_c_namemangling()  {
+    default_nm="#define FC_NAMEMANGLE(X) X ## _"
+    
+    cat > genmake_test.c <<EOF
+void tcall( char * string ) { tsub( string ); }
+EOF
+    $MAKE genmake_test.o > genmake_test.log 2>&1
+    RETVAL=$?
+    if test "x$RETVAL" != x0 ; then
+	cat genmake_test.log >> genmake_errors
+	FC_NAMEMANGLE=$default_nm
+	echo
+	echo "WARNING: C test compile fails -- please see \"genmake_errors\""
+	echo "WARNING: We'll try to use: FC_NAMEMANGLE='$FC_NAMEMANGLE'"
+	echo "WARNING: Please contact <MITgcm-support@mitgcm.org> if you need help here."
+	return 1
+    fi
+    c_tcall=`nm genmake_test.o | grep tcall | cut -d ' ' -f 3`
+    RETVAL=$?
+    if test "x$RETVAL" != x0 ; then
+	FC_NAMEMANGLE=$default_nm
+	echo
+	echo "WARNING: The \"nm\" command failed."
+	echo "WARNING: We'll try to use: FC_NAMEMANGLE='$FC_NAMEMANGLE'"
+	echo "WARNING: Please contact <MITgcm-support@mitgcm.org> if you need help here."
+	return 1
+    fi
+    cat > genmake_tcomp.f <<EOF
+      subroutine tcall( string )
+      character*(*) string
+      call tsub( string )
+      end
+EOF
+    $FC $FFLAGS $DEFINES -c genmake_tcomp.f > genmake_tcomp.log 2>&1
+    RETVAL=$?
+    if test "x$RETVAL" != x0 ; then
+	cat genmake_tcomp.log >> genmake_errors
+	FC_NAMEMANGLE=$default_nm
+	echo
+	echo "WARNING: FORTRAN test compile fails -- please see \"genmake_errors\""
+	echo "WARNING: We'll try to use: FC_NAMEMANGLE='$FC_NAMEMANGLE'"
+	echo "WARNING: Please contact <MITgcm-support@mitgcm.org> if you need help here."
+	return 1
+    fi
+    f_tcall=`nm genmake_tcomp.o | grep tcall | cut -d ' ' -f 3`
+    RETVAL=$?
+    if test "x$RETVAL" != x0 ; then
+	FC_NAMEMANGLE=$default_nm
+	echo
+	echo "WARNING: The \"nm\" command failed."
+	echo "WARNING: We'll try to use: FC_NAMEMANGLE='$FC_NAMEMANGLE'"
+	echo "WARNING: Please contact <MITgcm-support@mitgcm.org> if you need help here."
+	return 1
+    fi
+
+    c_a=`echo $c_tcall | sed -e 's|tcall|Y Y|' | cut -d ' ' -f 1 | sed -e 's|Y||'`
+    f_a=`echo $f_tcall | sed -e 's|tcall|Y Y|' | cut -d ' ' -f 1 | sed -e 's|Y||'`
+    c_b=`echo $c_tcall | sed -e 's|tcall|Y Y|' | cut -d ' ' -f 2 | sed -e 's|Y||'`
+    f_b=`echo $f_tcall | sed -e 's|tcall|Y Y|' | cut -d ' ' -f 2 | sed -e 's|Y||'`
+
+    nmangle="X"
+    if test "x$c_a" != "x$f_a" ; then
+	comm="echo x$f_a | sed -e 's|x$c_a||'"
+	a=`eval $comm`
+	nmangle="$a ## $nmangle"
+    fi
+    if test "x$c_b" != "x$f_b" ; then
+	comm="echo x$f_b | sed -e 's|x$c_b||'"
+	b=`eval $comm`
+	nmangle="$nmangle ## $b"
+    fi
+
+    FC_NAMEMANGLE="#define FC_NAMEMANGLE(X)  $nmangle"
+
+    #  cleanup the testing files
+    rm -f genmake_tcomp.* genmake_test.*
+}
 
 #  Set defaults here
 COMMANDL="$0 $@"
@@ -291,7 +362,8 @@
 KPP=
 FC=
 LINK=
-DEFINES="-DWORDLENGTH=4"
+# DEFINES="-DWORDLENGTH=4"
+DEFINES=
 PACKAGES=
 ENABLE=
 DISABLE=
@@ -312,6 +384,11 @@
 NOOPTFILES=
 NOOPTFLAGS=
 
+# DEFINES checked by test compilation
+HAVE_SYSTEM=
+HAVE_FDATE=
+FC_NAMEMANGLE=
+
 MODS=
 TOOLSDIR=
 SOURCEDIRS=
@@ -357,13 +434,15 @@
 gm_s4="CFLAGS KFLAGS1 KFLAGS2 LIBS KPPFILES NOOPTFILES NOOPTFLAGS"
 gm_s5="TOOLSDIR SOURCEDIRS INCLUDEDIRS PWD MAKE THISHOSTNAME THISDATE MACHINE"
 gm_s6="EXECUTABLE EXEHOOK EXEDIR PACKAGES_CONF"
+gm_s7="HAVE_SYSTEM HAVE_FDATE FC_NAMEMANGLE"
 
 #  The following are all related to adjoint/tangent-linear stuff
-gm_s7="AUTODIFF_PKG_USED AD_OPTFILE TAMC TAF AD_TAMC_FLAGS AD_TAF_FLAGS"
-gm_s8="FTL_TAMC_FLAGS FTL_TAF_FLAGS SVD_TAMC_FLAGS SVD_TAF_FLAGS"
-gm_s9="TAF_EXTRA TAMC_EXTRA"
+gm_s10="AUTODIFF_PKG_USED AD_OPTFILE TAMC TAF AD_TAMC_FLAGS AD_TAF_FLAGS"
+gm_s11="FTL_TAMC_FLAGS FTL_TAF_FLAGS SVD_TAMC_FLAGS SVD_TAF_FLAGS"
+gm_s12="TAF_EXTRA TAMC_EXTRA"
 
-gm_state="COMMANDL $gm_s1 $gm_s2 $gm_s3 $gm_s4 $gm_s5 $gm_s6 $gm_s7 $gm_s8 $gm_s9"
+gm_state="COMMANDL $gm_s1 $gm_s2 $gm_s3 $gm_s4 $gm_s5 $gm_s6 $gm_s7"
+gm_state="$gm_state $gm_s10 $gm_s11 $gm_s12"
 
 
 echo
@@ -371,14 +450,14 @@
 gm_local="genmake_local"
 for i in . $MODS ; do
     if test -r $i/$gm_local ; then
-	source $i/$gm_local
+	. $i/$gm_local
 	break
     fi
 done
 echo -n "  getting local config information:  "
 if test -e $gm_local ; then
     echo "using $gm_local"
-    source $gm_local
+    . $gm_local
     # echo "DISABLE=$DISABLE"
     # echo "ENABLE=$ENABLE"
 else
@@ -582,7 +661,7 @@
 if test "x$OPTFILE" != xNONE ; then
     if test -f "$OPTFILE" -a -r "$OPTFILE" ; then
 	echo "    using OPTFILE=\"$OPTFILE\""
-	source "$OPTFILE"
+	. "$OPTFILE"
 	RETVAL=$?
 	if test "x$RETVAL" != x0 ; then
 	    echo -n "Error: failed to source OPTFILE \"$OPTFILE\""
@@ -609,7 +688,7 @@
 if test "x${AD_OPTFILE}" != xNONE ; then
     if test -f "$AD_OPTFILE" -a -r "$AD_OPTFILE" ; then
 	echo "    using AD_OPTFILE=\"$AD_OPTFILE\""
-	source "$AD_OPTFILE"
+	. "$AD_OPTFILE"
 	RETVAL=$?
 	if test "x$RETVAL" != x0 ; then
 	    echo -n "Error: failed to source AD_OPTFILE \"$AD_OPTFILE\""
@@ -625,8 +704,8 @@
     fi
 fi
 
-#  Check that FC, LINK, CPP, and S64 are defined.  If not, complain 
-#  and abort!
+#  Check that FC, LINK, CPP, S64, and LN are defined.  If not,
+#  complain and abort!
 if test "x$FC" = x ; then
     cat <<EOF 1>&2
 
@@ -652,6 +731,7 @@
 
   1) within the options file ("CPP=...") as specified by "-of=OPTFILE"
   2) the "./genmake_local" file
+  3) with the CPP environment variable
 
 EOF
     exit 1
@@ -661,6 +741,76 @@
 if test "x$MAKEDEPEND" = x ; then
     MAKEDEPEND=makedepend
 fi
+if test "x$LN" = x ; then
+    LN="ln -s"
+fi
+echo "test" > genmake_test_ln
+$LN genmake_test_ln genmake_tlink
+RETVAL=$?
+if test "x$RETVAL" != x0 ; then
+    cat <<EOF 1>&2
+
+Error: The command "ln -s" failed -- please specify a working soft-link
+  command in the optfile.
+
+EOF
+    exit 1
+fi
+rm -f genmake_test_ln genmake_tlink
+
+printf "\n===  Checking system libraries  ===\n"
+echo -n "  Do we have the system() command using $FC...  "
+cat > genmake_tcomp.f <<EOF
+      program hello
+      call system('echo hi')
+      end
+EOF
+$FC $FFLAGS $DEFINES -o genmake_tcomp genmake_tcomp.f > genmake_tcomp.log 2>&1
+RETVAL=$?
+if test "x$RETVAL" = x0 ; then
+    HAVE_SYSTEM=t
+    DEFINES="$DEFINES -DHAVE_SYSTEM"
+    echo "yes"
+else
+    HAVE_SYSTEM=
+    echo "no"
+fi
+rm -f genmake_tcomp*
+
+echo -n "  Do we have the fdate() command using $FC...  "
+cat > genmake_tcomp.f <<EOF
+      program hello
+      CHARACTER(128) string
+      string = ' '
+      call fdate( string )
+      print *, string
+      end
+EOF
+$FC $FFLAGS $DEFINES -o genmake_tcomp genmake_tcomp.f > genmake_tcomp.log 2>&1
+RETVAL=$?
+if test "x$RETVAL" = x0 ; then
+    HAVE_FDATE=t
+    DEFINES="$DEFINES -DHAVE_FDATE"
+    echo "yes"
+else
+    HAVE_FDATE=
+    echo "no"
+fi
+rm -f genmake_tcomp*
+
+echo "  The name mangling convention for $FC is...  "
+#FC_NAMEMANGLE="#define FC_NAMEMANGLE(X) X ## _"
+if test "x$FC_NAMEMANGLE" = x ; then
+    get_fortran_c_namemangling
+fi
+echo "    '$FC_NAMEMANGLE'"
+echo "$FC_NAMEMANGLE" > FC_NAMEMANGLE.h.template
+cmp FC_NAMEMANGLE.h FC_NAMEMANGLE.h.template > /dev/null 2>&1
+RETVAL=$?
+if test "x$RETVAL" != x0 ; then
+    mv -f FC_NAMEMANGLE.h.template FC_NAMEMANGLE.h
+fi
+
 
 printf "\n===  Setting defaults  ===\n"
 echo -n "  Adding MODS directories:  "
@@ -714,7 +864,7 @@
 #  they appear as regular source code
 if test -r $ROOTDIR"/eesupp/src/Makefile" ; then
     echo "  Making source files in eesupp from templates"
-    $MAKE -C $ROOTDIR"/eesupp/src/" > make_eesupp.errors 2>&1
+    ( cd $ROOTDIR"/eesupp/src/" && $MAKE ) > make_eesupp.errors 2>&1
     RETVAL=$?
     if test "x${RETVAL}" = x0 ; then
 	rm -f make_eesupp.errors
@@ -751,7 +901,7 @@
     echo "Error: unable to parse package dependencies -- please check PDEPEND=\"$PDEPEND\""
     exit 1
 fi
-source ./.pd_tmp
+. ./.pd_tmp
 rm -f ./.pd_tmp
 
 #  Search for default packages.  Note that a "$ROOTDIR/pkg/pkg_groups"
@@ -909,24 +1059,6 @@
     fi
 done
 
-#  This is compatible with the old genmake.  The "DISABLE_*" flags
-#  need to be replaced by the "ALLOW_*" flags set below.
-#
-# echo -n "  Setting package-specific CPP flags:  "
-# pkrm=( mom_fluxform mom_vecinv generic_advdiff )
-# pkrmdef=( -DDISABLE_MOM_FLUXFORM -DDISABLE_MOM_VECINV -DDISABLE_GENERIC_ADVDIFF -DDISABLE_DEBUGMODE )
-# echo -n "  "
-# i=0
-# while test $i -lt "${#pkrm[@]}" ; do
-#     echo "$PACKAGES" | grep "${pk[$i]}" > /dev/null 2>&1
-#     RETVAL=$?
-#     if test "x$RETVAL" = x1 ; then
-# 	DEFINES="$DEFINES ${pkdef[$i]}"
-# 	echo -n " ${pkdef[$i]}"
-#     fi
-#     i=$(( $i + 1 ))
-# done
-# echo
 
 # Create a list of #define and #undef to enable/disable packages
 PACKAGES_DOT_H=PACKAGES_CONFIG.h
@@ -960,22 +1092,6 @@
 	if test "x$has_pack" = xf ; then
 	    undef=`echo "ALLOW_$n" | $AWK '{print toupper($0)}'`
 	    echo "#undef $undef" >> $PACKAGES_DOT_H".tmp"
-#           DEFINES="$DEFINES -U$undef"
-
-#EH3  WARNING :  This is an UGLY HACK that needs to be removed!!!
-	    case $n in 
-		mom_fluxform)
-		    DEFINES="$DEFINES -DDISABLE_MOM_FLUXFORM"
-		    ;;
-		mom_vecinv)
-		    DEFINES="$DEFINES -DDISABLE_MOM_VECINV"
-		    ;;
-		debug)
-		    DEFINES="$DEFINES -DDISABLE_DEBUGMODE"
-		    ;;
-	    esac
-#EH3  WARNING :  This is an UGLY HACK that needs to be removed!!!
-
 	fi
     fi
 done
@@ -1364,16 +1480,13 @@
 
 cat >>$MAKEFILE <<EOF
 
-AD_CONFIG.h:
-	cat AD_CONFIG.template > AD_CONFIG.h
-
 # ... AD ...
-ad: ad_taf
-ad_taf_f: ad_taf_output.f
-ad_tamc_f: ad_tamc_output.f
+adall: ad_taf
+adtaf: ad_taf_output.f
+adtamc: ad_tamc_output.f
 
-ad_input_code.f: \$(SRCFILES)
-	cat ad_config.template > AD_CONFIG.h
+ad_input_code.f: \$(AD_FILES) \$(HEADERFILES)
+	cmp ad_config.template AD_CONFIG.h || cat ad_config.template > AD_CONFIG.h
 	@make \$(F77FILES)
 	@make \$(AD_FLOW_FILES)
 	cat \$(AD_FLOW_FILES) \$(AD_FILES) > ad_input_code.f
@@ -1394,12 +1507,13 @@
 
 
 # ... FTL ...
-ftl: ftl_taf
-ftl_taf_f: ftl_taf_output.f
-ftl_tamc_f: ftl_tamc_output.f
+ftlall: ftl_taf
+ftltaf: ftl_taf_output.f
+ftltamc: ftl_tamc_output.f
 
-ftl_input_code.f: \$(SRCFILES)
-	cat ftl_config.template > AD_CONFIG.h
+ftl_input_code.f: \$(AD_FILES) \$(HEADERFILES)
+	cmp ftl_config.template AD_CONFIG.h || cat ftl_config.template > AD_CONFIG.h
+	@make \$(F77FILES)
 	@make \$(AD_FLOW_FILES)
 	cat \$(AD_FLOW_FILES) \$(AD_FILES) > ftl_input_code.f
 
@@ -1423,7 +1537,8 @@
 svd_taf_f: svd_taf_output.f
 
 svd_input_code.f: \$(SRCFILES)
-	cat svd_config.template > AD_CONFIG.h
+	cmp svd_config.template AD_CONFIG.h || cat svd_config.template > AD_CONFIG.h
+	@make \$(F77FILES)
 	@make \$(AD_FLOW_FILES)
 	cat \$(AD_FLOW_FILES) \$(AD_FILES) > svd_input_code.f
 
@@ -1474,37 +1589,37 @@
 printf "\n===  Done  ===\n"
 
 #  Write the "template" files for the adjoint builds
-cat >>AD_CONFIG.template <<EOF
+cat >AD_CONFIG.template <<EOF
 C  WARNING: This file is automatically generated by genmake2 and 
 C    used by the Makefile rules.  Please DO NOT EDIT this file 
-C    unless you are CERTAIN that you know what you're doing.
+C    unless you are CERTAIN that you know what you are doing.
 
 #undef ALLOW_ADJOINT_RUN
 #undef ALLOW_TANGENTLINEAR_RUN
 #undef ALLOW_ECCO_OPTIMIZATION
 EOF
-cat >>ad_config.template <<EOF
+cat >ad_config.template <<EOF
 C  WARNING: This file is automatically generated by genmake2 and 
 C    used by the Makefile rules.  Please DO NOT EDIT this file 
-C    unless you are CERTAIN that you know what you're doing.
+C    unless you are CERTAIN that you know what you are doing.
 
-#undef ALLOW_ADJOINT_RUN
+#define ALLOW_ADJOINT_RUN
 #undef ALLOW_TANGENTLINEAR_RUN
 #undef ALLOW_ECCO_OPTIMIZATION
 EOF
-cat >>ftl_config.template <<EOF
+cat >ftl_config.template <<EOF
 C  WARNING: This file is automatically generated by genmake2 and 
 C    used by the Makefile rules.  Please DO NOT EDIT this file 
-C    unless you are CERTAIN that you know what you're doing.
+C    unless you are CERTAIN that you know what you are doing.
 
 #undef ALLOW_ADJOINT_RUN
-#undef ALLOW_TANGENTLINEAR_RUN
+#define ALLOW_TANGENTLINEAR_RUN
 #undef ALLOW_ECCO_OPTIMIZATION
 EOF
-cat >>svd_config.template <<EOF
+cat >svd_config.template <<EOF
 C  WARNING: This file is automatically generated by genmake2 and 
 C    used by the Makefile rules.  Please DO NOT EDIT this file 
-C    unless you are CERTAIN that you know what you're doing.
+C    unless you are CERTAIN that you know what you are doing.
 
 #undef ALLOW_ADJOINT_RUN
 #undef ALLOW_TANGENTLINEAR_RUN