Fortran2003

c78ed73e · Uwe Schulzweida · 9845b1c9 · c78ed73e · c78ed73e · c78ed73e
Commit c78ed73e authored Nov 11, 2009 by Uwe Schulzweida
--- a/Makefile.am
+++ b/Makefile.am
@@ -4,4 +4,6 @@ SUBDIRS = src app examples tests
 #
 EXTRA_DIST=config/default doc/cdi_cman.pdf doc/cdi_fman.pdf src/cfortran.doc
 #
+ACLOCAL_AMFLAGS = -I m4
+#
 CLEANFILES  = `ls *~`
--- a/Makefile.in
+++ b/Makefile.in
@@ -39,8 +39,8 @@ DIST_COMMON = README $(am__configure_deps) $(srcdir)/Makefile.am \
 	config/depcomp config/install-sh config/missing \
 	config/mkinstalldirs
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
-	$(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/acx_sl_mod_suffix.m4 \
+	$(top_srcdir)/acinclude.m4 $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
@@ -96,6 +96,8 @@ EGREP = @EGREP@
 EXEEXT = @EXEEXT@
 F77 = @F77@
 FC = @FC@
+FCFLAGS = @FCFLAGS@
+FCMODEXT = @FCMODEXT@
 FFLAGS = @FFLAGS@
 GREP = @GREP@
 INSTALL = @INSTALL@
@@ -128,6 +130,7 @@ abs_top_builddir = @abs_top_builddir@
 abs_top_srcdir = @abs_top_srcdir@
 ac_ct_CC = @ac_ct_CC@
 ac_ct_F77 = @ac_ct_F77@
+ac_ct_FC = @ac_ct_FC@
 am__include = @am__include@
 am__leading_dot = @am__leading_dot@
 am__quote = @am__quote@
@@ -182,6 +185,8 @@ SUBDIRS = src app examples tests
 #
 EXTRA_DIST = config/default doc/cdi_cman.pdf doc/cdi_fman.pdf src/cfortran.doc
 #
+ACLOCAL_AMFLAGS = -I m4
+#
 CLEANFILES = `ls *~`
 all: all-recursive


--- a/aclocal.m4
+++ b/aclocal.m4
@@ -872,4 +872,5 @@ AC_SUBST([am__tar])
 AC_SUBST([am__untar])
 ]) # _AM_PROG_TAR

+m4_include([m4/acx_sl_mod_suffix.m4])
 m4_include([acinclude.m4])
--- a/app/Makefile.in
+++ b/app/Makefile.in
@@ -38,8 +38,8 @@ noinst_PROGRAMS = createtable$(EXEEXT)
 subdir = app
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
-	$(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/acx_sl_mod_suffix.m4 \
+	$(top_srcdir)/acinclude.m4 $(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(SHELL) $(top_srcdir)/config/mkinstalldirs
@@ -90,6 +90,8 @@ EGREP = @EGREP@
 EXEEXT = @EXEEXT@
 F77 = @F77@
 FC = @FC@
+FCFLAGS = @FCFLAGS@
+FCMODEXT = @FCMODEXT@
 FFLAGS = @FFLAGS@
 GREP = @GREP@
 INSTALL = @INSTALL@
@@ -122,6 +124,7 @@ abs_top_builddir = @abs_top_builddir@
 abs_top_srcdir = @abs_top_srcdir@
 ac_ct_CC = @ac_ct_CC@
 ac_ct_F77 = @ac_ct_F77@
+ac_ct_FC = @ac_ct_FC@
 am__include = @am__include@
 am__leading_dot = @am__leading_dot@
 am__quote = @am__quote@

--- a/configure
+++ b/configure
@@ -710,7 +710,12 @@ RANLIB
 CPP
 GREP
 EGREP
+CREATE_ISOC_TRUE
+CREATE_ISOC_FALSE
 FC
+FCFLAGS
+ac_ct_FC
+FCMODEXT
 LIBOBJS
 LTLIBOBJS'
 ac_subst_files=''
@@ -726,7 +731,10 @@ LIBS
 CPPFLAGS
 F77
 FFLAGS
-CPP'
+CPP
+FC
+FCFLAGS
+FCMODEXT'


 # Initialize some variables set by options.
@@ -1311,6 +1319,10 @@ Optional Features:
  --enable-dependency-tracking   do not reject slow dependency extractors
  --disable-largefile     omit support for large files
  --enable-grib           GRIB support [default=yes]
+  --enable-iso-c-interface
+                          Create Fortran Interface via iso_c_bindings facility
+                          of F2003 [default=no].
+
  --enable-dap            Build OPeNDAP/DODS-enabled clients if possible
                          [default=no]

@@ -1355,6 +1367,9 @@ Some influential environment variables:
  F77         Fortran 77 compiler command
  FFLAGS      Fortran 77 compiler flags
  CPP         C preprocessor
+  FC          Fortran compiler command
+  FCFLAGS     Fortran compiler flags
+  FCMODEXT    file extension of compiled Fortran module files

 Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
@@ -6316,6 +6331,386 @@ echo $ECHO_N "checking for SERVICE support... $ECHO_C" >&6; }
 { echo "$as_me:$LINENO: result: $with_service" >&5
 echo "${ECHO_T}$with_service" >&6; }

+#  ----------------------------------------------------------------------
+#  Create the Fortran Interface via iso_c_binding module (Fortran 2003 Standard)
+#
+# Check whether --enable-iso-c-interface was given.
+if test "${enable_iso_c_interface+set}" = set; then
+  enableval=$enable_iso_c_interface; enable_isoc=${enableval}
+else
+  enable_isoc=no
+fi
+
+ if test $enable_isoc = 'yes'; then
+  CREATE_ISOC_TRUE=
+  CREATE_ISOC_FALSE='#'
+else
+  CREATE_ISOC_TRUE='#'
+  CREATE_ISOC_FALSE=
+fi
+
+if test "${enable_isoc}" = "yes"; then
+  ac_ext=${ac_fc_srcext-f}
+ac_compile='$FC -c $FCFLAGS $ac_fcflags_srcext conftest.$ac_ext >&5'
+ac_link='$FC -o conftest$ac_exeext $FCFLAGS $LDFLAGS $ac_fcflags_srcext conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_fc_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in gfortran g95 xlf95 f95 fort ifort ifc efc pgf95 lf95 ftn xlf90 f90 pgf90 pghpf epcf90 g77 xlf f77 frt pgf77 cf77 fort77 fl32 af77
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_FC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$FC"; then
+  ac_cv_prog_FC="$FC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_FC="$ac_tool_prefix$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+FC=$ac_cv_prog_FC
+if test -n "$FC"; then
+  { echo "$as_me:$LINENO: result: $FC" >&5
+echo "${ECHO_T}$FC" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+    test -n "$FC" && break
+  done
+fi
+if test -z "$FC"; then
+  ac_ct_FC=$FC
+  for ac_prog in gfortran g95 xlf95 f95 fort ifort ifc efc pgf95 lf95 ftn xlf90 f90 pgf90 pghpf epcf90 g77 xlf f77 frt pgf77 cf77 fort77 fl32 af77
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_ac_ct_FC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_FC"; then
+  ac_cv_prog_ac_ct_FC="$ac_ct_FC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_FC="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_FC=$ac_cv_prog_ac_ct_FC
+if test -n "$ac_ct_FC"; then
+  { echo "$as_me:$LINENO: result: $ac_ct_FC" >&5
+echo "${ECHO_T}$ac_ct_FC" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+  test -n "$ac_ct_FC" && break
+done
+
+  if test "x$ac_ct_FC" = x; then
+    FC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&5
+echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+ac_tool_warned=yes ;;
+esac
+    FC=$ac_ct_FC
+  fi
+fi
+
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO: checking for Fortran compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (ac_try="$ac_compiler --version >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compiler --version >&5") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (ac_try="$ac_compiler -v >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compiler -v >&5") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (ac_try="$ac_compiler -V >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compiler -V >&5") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+rm -f a.out
+
+# If we don't use `.F' as extension, the preprocessor is not run on the
+# input file.  (Note that this only needs to work for GNU compilers.)
+ac_save_ext=$ac_ext
+ac_ext=F
+{ echo "$as_me:$LINENO: checking whether we are using the GNU Fortran compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU Fortran compiler... $ECHO_C" >&6; }
+if test "${ac_cv_fc_compiler_gnu+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+      program main
+#ifndef __GNUC__
+       choke me
+#endif
+
+      end
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_fc_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_compiler_gnu=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_compiler_gnu=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_fc_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_fc_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_fc_compiler_gnu" >&6; }
+ac_ext=$ac_save_ext
+ac_test_FFLAGS=${FCFLAGS+set}
+ac_save_FFLAGS=$FCFLAGS
+FCFLAGS=
+{ echo "$as_me:$LINENO: checking whether $FC accepts -g" >&5
+echo $ECHO_N "checking whether $FC accepts -g... $ECHO_C" >&6; }
+if test "${ac_cv_prog_fc_g+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  FCFLAGS=-g
+cat >conftest.$ac_ext <<_ACEOF
+      program main
+
+      end
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_fc_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_prog_fc_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_prog_fc_g=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_prog_fc_g" >&5
+echo "${ECHO_T}$ac_cv_prog_fc_g" >&6; }
+if test "$ac_test_FFLAGS" = set; then
+  FCFLAGS=$ac_save_FFLAGS
+elif test $ac_cv_prog_fc_g = yes; then
+  if test "x$ac_cv_fc_compiler_gnu" = xyes; then
+    FCFLAGS="-g -O2"
+  else
+    FCFLAGS="-g"
+  fi
+else
+  if test "x$ac_cv_fc_compiler_gnu" = xyes; then
+    FCFLAGS="-O2"
+  else
+    FCFLAGS=
+  fi
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+else
+  FC=$F77
+
+fi
+#  Check the module extension of the fortran compiler
+
+{ echo "$as_me:$LINENO: checking for suffix of module files" >&5
+echo $ECHO_N "checking for suffix of module files... $ECHO_C" >&6; }
+
+   ac_fc_mod_uppercase=no
+   ac_ext=${ac_fc_srcext-f}
+ac_compile='$FC -c $FCFLAGS $ac_fcflags_srcext conftest.$ac_ext >&5'
+ac_link='$FC -o conftest$ac_exeext $FCFLAGS $LDFLAGS $ac_fcflags_srcext conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_fc_compiler_gnu
+
+   cat >conftest.$ac_ext <<_ACEOF
+
+      module conftest
+       implicit none
+       integer :: i
+      end module conftest
+
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_fc_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   while :; do
+     acx_fc_mod_name=
+        if test -n "conftest.$FCMODEXT" -a -f "conftest.$FCMODEXT"; then
+          acx_fc_mod_name="conftest.$FCMODEXT" ; break
+fi
+
+          if test -n "conftest.mod" -a -f "conftest.mod"; then
+          acx_fc_mod_name="conftest.mod" ; break
+fi
+
+          if test -n "conftest.MOD" -a -f "conftest.MOD"; then
+          acx_fc_mod_name="conftest.MOD" ; break
+fi
+
+          if test -n "conftest.M" -a -f "conftest.M"; then
+          acx_fc_mod_name="conftest.M" ; break
+fi
+
+          if test -n "CONFTEST.MOD" -a -f "CONFTEST.MOD"; then
+          acx_fc_mod_name="CONFTEST.MOD" ; break
+fi
+
+
+     break
+   done
+   rm -f conftest*
+   ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+   case "$acx_fc_mod_name" in
+       conftest.$FCMODEXT) : ;;
+  CONFTEST.$FCMODEXT) ac_fc_mod_uppercase=yes ;;
+  conftest.mod) FCMODEXT=mod ;;
+  conftest.MOD) FCMODEXT=MOD ;;
+  conftest.M) FCMODEXT=M ;;
+  CONFTEST.MOD) FCMODEXT=MOD
+        ac_fc_mod_uppercase=yes ;;
+esac
+
+   { echo "$as_me:$LINENO: result: ${FCMODEXT-not found}" >&5
+echo "${ECHO_T}${FCMODEXT-not found}" >&6; }
+   test "${FCMODEXT+set}" = set
+   if test $ac_fc_mod_uppercase = yes; then
+  { echo "$as_me:$LINENO: Fortran module filenames are uppercase." >&5
+echo "$as_me: Fortran module filenames are uppercase." >&6;}
+fi
+
+
+
+
 #  ----------------------------------------------------------------------
 #  Compile interface with internal EXTRA library
 #
@@ -7072,8 +7467,6 @@ fi



-FC=$F77
-



@@ -7190,6 +7583,13 @@ echo "$as_me: error: conditional \"am__fastdepCC\" was never defined.
 Usually this means the macro was only invoked conditionally." >&2;}
   { (exit 1); exit 1; }; }
 fi
+if test -z "${CREATE_ISOC_TRUE}" && test -z "${CREATE_ISOC_FALSE}"; then
+  { { echo "$as_me:$LINENO: error: conditional \"CREATE_ISOC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"CREATE_ISOC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+   { (exit 1); exit 1; }; }
+fi

 : ${CONFIG_STATUS=./config.status}
 ac_clean_files_save=$ac_clean_files
@@ -7822,7 +8222,7 @@ RANLIB!$RANLIB$ac_delim
 CPP!$CPP$ac_delim
 GREP!$GREP$ac_delim
 EGREP!$EGREP$ac_delim
-FC!$FC$ac_delim
+CREATE_ISOC_TRUE!$CREATE_ISOC_TRUE$ac_delim
 _ACEOF

  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -7864,11 +8264,16 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
  cat >conf$$subs.sed <<_ACEOF
+CREATE_ISOC_FALSE!$CREATE_ISOC_FALSE$ac_delim
+FC!$FC$ac_delim
+FCFLAGS!$FCFLAGS$ac_delim
+ac_ct_FC!$ac_ct_FC$ac_delim
+FCMODEXT!$FCMODEXT$ac_delim
 LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF

-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 2; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 7; then
    break
  elif $ac_last_try; then
    { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5

--- a/configure.ac
+++ b/configure.ac
@@ -188,6 +188,22 @@ fi
 AC_MSG_CHECKING([for SERVICE support])
 AC_MSG_RESULT($with_service)

+#  ----------------------------------------------------------------------
+#  Create the Fortran Interface via iso_c_binding module (Fortran 2003 Standard)
+#
+AC_ARG_ENABLE(iso-c-interface,
+              AS_HELP_STRING([--enable-iso-c-interface],
+                             [Create Fortran Interface via iso_c_bindings facility of F2003 [[default=no]]]).
+              ,enable_isoc=${enableval},enable_isoc=no)
+AM_CONDITIONAL([CREATE_ISOC],[test $enable_isoc = 'yes'])
+if test "${enable_isoc}" = "yes"; then
+  AC_PROG_FC
+else
+  AC_SUBST([FC],$F77)
+fi
+#  Check the module extension of the fortran compiler
+ACX_SL_FC_MOD_SUFFIX(,[FCMODEXT=mod])
+
 #  ----------------------------------------------------------------------
 #  Compile interface with internal EXTRA library
 #
@@ -327,7 +343,6 @@ esac
 #  Check C / Fortran interface
 UD_CHECK_CFINT([$srcdir/src/cfortran.h])

-AC_SUBST([FC],$F77)
 AC_SUBST([CFINT])
 AC_SUBST([CPPFLAGS])
 AC_SUBST([AR])

--- a/doc/tex/bib.tex
+++ b/doc/tex/bib.tex
 \begin{thebibliography}{xx}

-\label{ECHAM}
 \bibitem[ECHAM]{ECHAM} \ \\
  \href{http://www.mpimet.mpg.de/wissenschaft/publikationen/reports.html}
       {The atmospheric general circulation model ECHAM5},
@@ -8,29 +7,24 @@
  \href{http://www.mpimet.mpg.de}
       {Max Planck Institute for Meteorologie}

-\label{GRIB}
 \bibitem[GRIB]{GRIB} \ \\
  \href{http://www.wmo.ch/web/www/WMOCodes/Guides/GRIB/GRIB1-Contents.html}
       {GRIB version 1},
  from the World Meteorological Organisation
  (\href{http://www.wmo.ch}{WMO})

-\label{NetCDF}
 \bibitem[NetCDF]{NetCDF} \ \\
  \href{http://www.unidata.ucar.edu/packages/netcdf/index.html}{NetCDF Software Package},
  from the
  \href{http://www.unidata.ucar.edu}{UNIDATA}
  Program Center of the University Corporation for Atmospheric Research

-\label{MPIOM}
 \bibitem[MPIOM]{MPIOM} \ \\
  The ocean model MPIOM,
  from the
  \href{http://www.mpimet.mpg.de}
       {Max Planck Institute for Meteorologie}

-
-\label{REMO}
 \bibitem[REMO]{REMO} \ \\
  The regional climate model REMO,
  from the

--- a/doc/tex/c_ref.tex
+++ b/doc/tex/c_ref.tex
--- a/doc/tex/cdi_cman.tex
+++ b/doc/tex/cdi_cman.tex
 \documentclass[DIV16,BCOR1cm,11pt,a4paper,fleqn,twoside]{scrreprt}         % for pdf output
 %\documentclass[DIV16,BCOR1cm,11pt,a4paper,fleqn]{report}         % for pdf output