diff --git a/configure b/configure
index 6efc2d91..afc2377b 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.68 for PSBLAS 3.0.
+# Generated by GNU Autoconf 2.66 for PSBLAS 3.0.
 #
 # Report bugs to <salvatore.filippone@uniroma2.it>.
 #
@@ -91,7 +91,6 @@ fi
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
-as_myself=
 case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -217,18 +216,11 @@ IFS=$as_save_IFS
   # We cannot yet assume a decent shell, so we have to provide a
 	# neutralization value for shells without unset; and this also
 	# works around shells that cannot unset nonexistent variables.
-	# Preserve -v and -x to the replacement shell.
 	BASH_ENV=/dev/null
 	ENV=/dev/null
 	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
 	export CONFIG_SHELL
-	case $- in # ((((
-	  *v*x* | *x*v* ) as_opts=-vx ;;
-	  *v* ) as_opts=-v ;;
-	  *x* ) as_opts=-x ;;
-	  * ) as_opts= ;;
-	esac
-	exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
+	exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}
 fi
 
     if test x$as_have_required = xno; then :
@@ -840,9 +832,8 @@ do
   fi
 
   case $ac_option in
-  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
-  *=)   ac_optarg= ;;
-  *)    ac_optarg=yes ;;
+  *=*)	ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *)	ac_optarg=yes ;;
   esac
 
   # Accept the important Cygnus configure options, so we can diagnose typos.
@@ -1182,7 +1173,7 @@ Try \`$0 --help' for more information"
     $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
       $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
-    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
     ;;
 
   esac
@@ -1522,7 +1513,7 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
 PSBLAS configure 3.0
-generated by GNU Autoconf 2.68
+generated by GNU Autoconf 2.66
 
 Copyright (C) 2010 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
@@ -1568,7 +1559,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
 fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   as_fn_set_status $ac_retval
 
 } # ac_fn_fc_try_compile
@@ -1606,7 +1597,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
 fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   as_fn_set_status $ac_retval
 
 } # ac_fn_f77_try_compile
@@ -1644,7 +1635,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
 fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_compile
@@ -1690,7 +1681,7 @@ fi
   # interfere with the next link command; also delete a directory that is
   # left behind by Apple's compiler.  We do this before executing the actions.
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_link
@@ -1703,7 +1694,7 @@ ac_fn_c_check_func ()
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
+if eval "test \"\${$3+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -1758,7 +1749,7 @@ fi
 eval ac_res=\$$3
 	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
 
 } # ac_fn_c_check_func
 
@@ -1803,7 +1794,7 @@ fi
   # interfere with the next link command; also delete a directory that is
   # left behind by Apple's compiler.  We do this before executing the actions.
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   as_fn_set_status $ac_retval
 
 } # ac_fn_fc_try_link
@@ -1849,7 +1840,7 @@ fi
   # interfere with the next link command; also delete a directory that is
   # left behind by Apple's compiler.  We do this before executing the actions.
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   as_fn_set_status $ac_retval
 
 } # ac_fn_f77_try_link
@@ -1891,7 +1882,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
        ac_retval=$ac_status
 fi
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_run
@@ -2069,7 +2060,7 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
 rm -f conftest.val
 
   fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_compute_int
@@ -2095,7 +2086,7 @@ $as_echo "$ac_try_echo"; } >&5
     mv -f conftest.er1 conftest.err
   fi
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } > conftest.i && {
+  test $ac_status = 0; } >/dev/null && {
 	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        }; then :
@@ -2106,7 +2097,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
     ac_retval=1
 fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_cpp
@@ -2120,7 +2111,7 @@ ac_fn_c_check_header_compile ()
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
+if eval "test \"\${$3+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2138,7 +2129,7 @@ fi
 eval ac_res=\$$3
 	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
 
 } # ac_fn_c_check_header_compile
 
@@ -2150,10 +2141,10 @@ $as_echo "$ac_res" >&6; }
 ac_fn_c_check_header_mongrel ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if eval \${$3+:} false; then :
+  if eval "test \"\${$3+set}\"" = set; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
+if eval "test \"\${$3+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 fi
 eval ac_res=\$$3
@@ -2189,7 +2180,7 @@ if ac_fn_c_try_cpp "$LINENO"; then :
 else
   ac_header_preproc=no
 fi
-rm -f conftest.err conftest.i conftest.$ac_ext
+rm -f conftest.err conftest.$ac_ext
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
 $as_echo "$ac_header_preproc" >&6; }
 
@@ -2220,7 +2211,7 @@ $as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
 esac
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
+if eval "test \"\${$3+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   eval "$3=\$ac_header_compiler"
@@ -2229,7 +2220,7 @@ eval ac_res=\$$3
 	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
 fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
 
 } # ac_fn_c_check_header_mongrel
 cat >config.log <<_ACEOF
@@ -2237,7 +2228,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by PSBLAS $as_me 3.0, which was
-generated by GNU Autoconf 2.68.  Invocation command line was
+generated by GNU Autoconf 2.66.  Invocation command line was
 
   $ $0 $@
 
@@ -2675,7 +2666,7 @@ ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
 $as_echo_n "checking for a BSD-compatible install... " >&6; }
 if test -z "$INSTALL"; then
-if ${ac_cv_path_install+:} false; then :
+if test "${ac_cv_path_install+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2785,7 +2776,7 @@ if test -n "$ac_tool_prefix"; then
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_FC+:} false; then :
+if test "${ac_cv_prog_FC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$FC"; then
@@ -2829,7 +2820,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_FC+:} false; then :
+if test "${ac_cv_prog_ac_ct_FC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_FC"; then
@@ -3094,7 +3085,7 @@ rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
 ac_clean_files=$ac_clean_files_save
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 $as_echo_n "checking for suffix of object files... " >&6; }
-if ${ac_cv_objext+:} false; then :
+if test "${ac_cv_objext+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.$ac_ext <<_ACEOF
@@ -3143,7 +3134,7 @@ ac_save_ext=$ac_ext
 ac_ext=F
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU Fortran compiler" >&5
 $as_echo_n "checking whether we are using the GNU Fortran compiler... " >&6; }
-if ${ac_cv_fc_compiler_gnu+:} false; then :
+if test "${ac_cv_fc_compiler_gnu+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.$ac_ext <<_ACEOF
@@ -3171,7 +3162,7 @@ ac_save_FCFLAGS=$FCFLAGS
 FCFLAGS=
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $FC accepts -g" >&5
 $as_echo_n "checking whether $FC accepts -g... " >&6; }
-if ${ac_cv_prog_fc_g+:} false; then :
+if test "${ac_cv_prog_fc_g+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   FCFLAGS=-g
@@ -3223,7 +3214,7 @@ if test -n "$ac_tool_prefix"; then
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_F77+:} false; then :
+if test "${ac_cv_prog_F77+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$F77"; then
@@ -3267,7 +3258,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_F77+:} false; then :
+if test "${ac_cv_prog_ac_ct_F77+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_F77"; then
@@ -3349,7 +3340,7 @@ ac_save_ext=$ac_ext
 ac_ext=F
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU Fortran 77 compiler" >&5
 $as_echo_n "checking whether we are using the GNU Fortran 77 compiler... " >&6; }
-if ${ac_cv_f77_compiler_gnu+:} false; then :
+if test "${ac_cv_f77_compiler_gnu+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.$ac_ext <<_ACEOF
@@ -3377,7 +3368,7 @@ ac_save_FFLAGS=$FFLAGS
 FFLAGS=
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $F77 accepts -g" >&5
 $as_echo_n "checking whether $F77 accepts -g... " >&6; }
-if ${ac_cv_prog_f77_g+:} false; then :
+if test "${ac_cv_prog_f77_g+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   FFLAGS=-g
@@ -3435,7 +3426,7 @@ if test -n "$ac_tool_prefix"; then
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
+if test "${ac_cv_prog_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -3479,7 +3470,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CC+:} false; then :
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -3561,7 +3552,7 @@ done
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if ${ac_cv_c_compiler_gnu+:} false; then :
+if test "${ac_cv_c_compiler_gnu+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -3598,7 +3589,7 @@ ac_test_CFLAGS=${CFLAGS+set}
 ac_save_CFLAGS=$CFLAGS
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 $as_echo_n "checking whether $CC accepts -g... " >&6; }
-if ${ac_cv_prog_cc_g+:} false; then :
+if test "${ac_cv_prog_cc_g+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_save_c_werror_flag=$ac_c_werror_flag
@@ -3676,7 +3667,7 @@ else
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if ${ac_cv_prog_cc_c89+:} false; then :
+if test "${ac_cv_prog_cc_c89+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_prog_cc_c89=no
@@ -3831,7 +3822,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MPICC+:} false; then :
+if test "${ac_cv_prog_MPICC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$MPICC"; then
@@ -3880,7 +3871,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MPICC+:} false; then :
+if test "${ac_cv_prog_MPICC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$MPICC"; then
@@ -3924,7 +3915,7 @@ test -n "$MPICC" || MPICC="$CC"
 
 if test x = x"$MPILIBS"; then
 	ac_fn_c_check_func "$LINENO" "MPI_Init" "ac_cv_func_MPI_Init"
-if test "x$ac_cv_func_MPI_Init" = xyes; then :
+if test "x$ac_cv_func_MPI_Init" = x""yes; then :
   MPILIBS=" "
 fi
 
@@ -3933,7 +3924,7 @@ fi
 if test x = x"$MPILIBS"; then
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lmpi" >&5
 $as_echo_n "checking for MPI_Init in -lmpi... " >&6; }
-if ${ac_cv_lib_mpi_MPI_Init+:} false; then :
+if test "${ac_cv_lib_mpi_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -3967,7 +3958,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mpi_MPI_Init" >&5
 $as_echo "$ac_cv_lib_mpi_MPI_Init" >&6; }
-if test "x$ac_cv_lib_mpi_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_mpi_MPI_Init" = x""yes; then :
   MPILIBS="-lmpi"
 fi
 
@@ -3975,7 +3966,7 @@ fi
 if test x = x"$MPILIBS"; then
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lmpich" >&5
 $as_echo_n "checking for MPI_Init in -lmpich... " >&6; }
-if ${ac_cv_lib_mpich_MPI_Init+:} false; then :
+if test "${ac_cv_lib_mpich_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -4009,7 +4000,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mpich_MPI_Init" >&5
 $as_echo "$ac_cv_lib_mpich_MPI_Init" >&6; }
-if test "x$ac_cv_lib_mpich_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_mpich_MPI_Init" = x""yes; then :
   MPILIBS="-lmpich"
 fi
 
@@ -4071,7 +4062,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MPIFC+:} false; then :
+if test "${ac_cv_prog_MPIFC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$MPIFC"; then
@@ -4121,7 +4112,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MPIFC+:} false; then :
+if test "${ac_cv_prog_MPIFC+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$MPIFC"; then
@@ -4186,7 +4177,7 @@ fi
 	if test x = x"$MPILIBS"; then
 		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lfmpi" >&5
 $as_echo_n "checking for MPI_Init in -lfmpi... " >&6; }
-if ${ac_cv_lib_fmpi_MPI_Init+:} false; then :
+if test "${ac_cv_lib_fmpi_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -4207,7 +4198,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_fmpi_MPI_Init" >&5
 $as_echo "$ac_cv_lib_fmpi_MPI_Init" >&6; }
-if test "x$ac_cv_lib_fmpi_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_fmpi_MPI_Init" = x""yes; then :
   MPILIBS="-lfmpi"
 fi
 
@@ -4215,7 +4206,7 @@ fi
 	if test x = x"$MPILIBS"; then
 		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lmpichf90" >&5
 $as_echo_n "checking for MPI_Init in -lmpichf90... " >&6; }
-if ${ac_cv_lib_mpichf90_MPI_Init+:} false; then :
+if test "${ac_cv_lib_mpichf90_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -4236,7 +4227,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mpichf90_MPI_Init" >&5
 $as_echo "$ac_cv_lib_mpichf90_MPI_Init" >&6; }
-if test "x$ac_cv_lib_mpichf90_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_mpichf90_MPI_Init" = x""yes; then :
   MPILIBS="-lmpichf90"
 fi
 
@@ -4245,7 +4236,7 @@ fi
 if test x = x"$MPILIBS"; then
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lmpi" >&5
 $as_echo_n "checking for MPI_Init in -lmpi... " >&6; }
-if ${ac_cv_lib_mpi_MPI_Init+:} false; then :
+if test "${ac_cv_lib_mpi_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -4266,7 +4257,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mpi_MPI_Init" >&5
 $as_echo "$ac_cv_lib_mpi_MPI_Init" >&6; }
-if test "x$ac_cv_lib_mpi_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_mpi_MPI_Init" = x""yes; then :
   MPILIBS="-lmpi"
 fi
 
@@ -4274,7 +4265,7 @@ fi
 if test x = x"$MPILIBS"; then
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lmpich" >&5
 $as_echo_n "checking for MPI_Init in -lmpich... " >&6; }
-if ${ac_cv_lib_mpich_MPI_Init+:} false; then :
+if test "${ac_cv_lib_mpich_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -4295,7 +4286,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mpich_MPI_Init" >&5
 $as_echo "$ac_cv_lib_mpich_MPI_Init" >&6; }
-if test "x$ac_cv_lib_mpich_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_mpich_MPI_Init" = x""yes; then :
   MPILIBS="-lmpich"
 fi
 
@@ -4349,7 +4340,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MPIF77+:} false; then :
+if test "${ac_cv_prog_MPIF77+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$MPIF77"; then
@@ -4398,7 +4389,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_MPIF77+:} false; then :
+if test "${ac_cv_prog_MPIF77+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$MPIF77"; then
@@ -4463,7 +4454,7 @@ fi
 	if test x = x"$MPILIBS"; then
 		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lfmpi" >&5
 $as_echo_n "checking for MPI_Init in -lfmpi... " >&6; }
-if ${ac_cv_lib_fmpi_MPI_Init+:} false; then :
+if test "${ac_cv_lib_fmpi_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -4484,7 +4475,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_fmpi_MPI_Init" >&5
 $as_echo "$ac_cv_lib_fmpi_MPI_Init" >&6; }
-if test "x$ac_cv_lib_fmpi_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_fmpi_MPI_Init" = x""yes; then :
   MPILIBS="-lfmpi"
 fi
 
@@ -4492,7 +4483,7 @@ fi
 	if test x = x"$MPILIBS"; then
 		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lfmpich" >&5
 $as_echo_n "checking for MPI_Init in -lfmpich... " >&6; }
-if ${ac_cv_lib_fmpich_MPI_Init+:} false; then :
+if test "${ac_cv_lib_fmpich_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -4513,7 +4504,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_fmpich_MPI_Init" >&5
 $as_echo "$ac_cv_lib_fmpich_MPI_Init" >&6; }
-if test "x$ac_cv_lib_fmpich_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_fmpich_MPI_Init" = x""yes; then :
   MPILIBS="-lfmpich"
 fi
 
@@ -4522,7 +4513,7 @@ fi
 if test x = x"$MPILIBS"; then
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lmpi" >&5
 $as_echo_n "checking for MPI_Init in -lmpi... " >&6; }
-if ${ac_cv_lib_mpi_MPI_Init+:} false; then :
+if test "${ac_cv_lib_mpi_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -4543,7 +4534,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mpi_MPI_Init" >&5
 $as_echo "$ac_cv_lib_mpi_MPI_Init" >&6; }
-if test "x$ac_cv_lib_mpi_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_mpi_MPI_Init" = x""yes; then :
   MPILIBS="-lmpi"
 fi
 
@@ -4551,7 +4542,7 @@ fi
 if test x = x"$MPILIBS"; then
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MPI_Init in -lmpich" >&5
 $as_echo_n "checking for MPI_Init in -lmpich... " >&6; }
-if ${ac_cv_lib_mpich_MPI_Init+:} false; then :
+if test "${ac_cv_lib_mpich_MPI_Init+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -4572,7 +4563,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mpich_MPI_Init" >&5
 $as_echo "$ac_cv_lib_mpich_MPI_Init" >&6; }
-if test "x$ac_cv_lib_mpich_MPI_Init" = xyes; then :
+if test "x$ac_cv_lib_mpich_MPI_Init" = x""yes; then :
   MPILIBS="-lmpich"
 fi
 
@@ -4817,7 +4808,7 @@ if test -n "$ac_tool_prefix"; then
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_RANLIB+:} false; then :
+if test "${ac_cv_prog_RANLIB+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$RANLIB"; then
@@ -4857,7 +4848,7 @@ if test -z "$ac_cv_prog_RANLIB"; then
 set dummy ranlib; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
+if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_RANLIB"; then
@@ -5008,7 +4999,7 @@ if test "$cross_compiling" != no; then
 set dummy ${ac_tool_prefix}strip; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_STRIP+:} false; then :
+if test "${ac_cv_prog_STRIP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$STRIP"; then
@@ -5048,7 +5039,7 @@ if test -z "$ac_cv_prog_STRIP"; then
 set dummy strip; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_STRIP"; then
@@ -5101,7 +5092,7 @@ INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
 $as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
 if test -z "$MKDIR_P"; then
-  if ${ac_cv_path_mkdir+:} false; then :
+  if test "${ac_cv_path_mkdir+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5152,7 +5143,7 @@ do
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_AWK+:} false; then :
+if test "${ac_cv_prog_AWK+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$AWK"; then
@@ -5192,7 +5183,7 @@ done
 $as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
 set x ${MAKE-make}
 ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
-if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
+if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat >conftest.make <<\_ACEOF
@@ -5355,7 +5346,7 @@ depcc="$CC"   am_compiler_list=
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
 $as_echo_n "checking dependency style of $depcc... " >&6; }
-if ${am_cv_CC_dependencies_compiler_type+:} false; then :
+if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
@@ -5641,7 +5632,7 @@ if test -n "$CPP" && test -d "$CPP"; then
   CPP=
 fi
 if test -z "$CPP"; then
-  if ${ac_cv_prog_CPP+:} false; then :
+  if test "${ac_cv_prog_CPP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
       # Double quotes because CPP needs to be expanded
@@ -5671,7 +5662,7 @@ else
   # Broken: fails on valid input.
 continue
 fi
-rm -f conftest.err conftest.i conftest.$ac_ext
+rm -f conftest.err conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
@@ -5687,11 +5678,11 @@ else
 ac_preproc_ok=:
 break
 fi
-rm -f conftest.err conftest.i conftest.$ac_ext
+rm -f conftest.err conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.$ac_ext
 if $ac_preproc_ok; then :
   break
 fi
@@ -5730,7 +5721,7 @@ else
   # Broken: fails on valid input.
 continue
 fi
-rm -f conftest.err conftest.i conftest.$ac_ext
+rm -f conftest.err conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
@@ -5746,11 +5737,11 @@ else
 ac_preproc_ok=:
 break
 fi
-rm -f conftest.err conftest.i conftest.$ac_ext
+rm -f conftest.err conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.$ac_ext
 if $ac_preproc_ok; then :
 
 else
@@ -5769,7 +5760,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
 $as_echo_n "checking for grep that handles long lines and -e... " >&6; }
-if ${ac_cv_path_GREP+:} false; then :
+if test "${ac_cv_path_GREP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -z "$GREP"; then
@@ -5832,7 +5823,7 @@ $as_echo "$ac_cv_path_GREP" >&6; }
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
 $as_echo_n "checking for egrep... " >&6; }
-if ${ac_cv_path_EGREP+:} false; then :
+if test "${ac_cv_path_EGREP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
@@ -5899,7 +5890,7 @@ $as_echo "$ac_cv_path_EGREP" >&6; }
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
 $as_echo_n "checking for ANSI C header files... " >&6; }
-if ${ac_cv_header_stdc+:} false; then :
+if test "${ac_cv_header_stdc+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6032,7 +6023,7 @@ done
 # This bug is HP SR number 8606223364.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
 $as_echo_n "checking size of void *... " >&6; }
-if ${ac_cv_sizeof_void_p+:} false; then :
+if test "${ac_cv_sizeof_void_p+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"; then :
@@ -6074,7 +6065,7 @@ if test "X$psblas_cv_fc" == X"pg" ; then
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Fortran name-mangling scheme" >&5
 $as_echo_n "checking for Fortran name-mangling scheme... " >&6; }
-if ${ac_cv_fc_mangling+:} false; then :
+if test "${ac_cv_fc_mangling+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.$ac_ext <<_ACEOF
@@ -6423,7 +6414,7 @@ else
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking fortran 90 modules extension" >&5
 $as_echo_n "checking fortran 90 modules extension... " >&6; }
-if ${ax_cv_f90_modext+:} false; then :
+if test "${ax_cv_f90_modext+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_ext=${ac_fc_srcext-f}
@@ -6475,7 +6466,7 @@ $as_echo "$ax_cv_f90_modext" >&6; }
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking fortran 90 modules inclusion flag" >&5
 $as_echo_n "checking fortran 90 modules inclusion flag... " >&6; }
-if ${ax_cv_f90_modflag+:} false; then :
+if test "${ax_cv_f90_modflag+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_ext=${ac_fc_srcext-f}
@@ -6893,6 +6884,44 @@ $as_echo "no" >&6; }
 fi
 rm -f conftest*
 
+ac_exeext=''
+ac_ext='f90'
+ac_link='${MPIFC-$FC} -o conftest${ac_exeext} $FCFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking support for Fortran ISO_C_BINDING module" >&5
+$as_echo_n "checking support for Fortran ISO_C_BINDING module... " >&6; }
+i=0
+while test \( -f tmpdir_$i \) -o \( -d tmpdir_$i \) ; do
+  i=`expr $i + 1`
+done
+mkdir tmpdir_$i
+cd tmpdir_$i
+cat > conftest.$ac_ext <<EOF
+program conftest
+  use iso_c_binding
+end program conftest
+EOF
+if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext}; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+  FDEFINES="$psblas_cv_define_prepend-DHAVE_ISO_C_BINDING $FDEFINES"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+
+  as_fn_error $? "Sorry, cannot build PSBLAS without support for ISO_C_BINDING.
+ Please get a Fortran compiler that supports it, e.g. GNU Fortran 4.6." "$LINENO" 5
+
+fi
+cd ..
+rm -fr tmpdir_$i
+
 #
 # Optional features
 #
@@ -6996,41 +7025,6 @@ $as_echo "no" >&6; }
 fi
 rm -f conftest*
 
-ac_exeext=''
-ac_ext='f90'
-ac_link='${MPIFC-$FC} -o conftest${ac_exeext} $FCFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking support for Fortran ISO_C_BINDING module" >&5
-$as_echo_n "checking support for Fortran ISO_C_BINDING module... " >&6; }
-i=0
-while test \( -f tmpdir_$i \) -o \( -d tmpdir_$i \) ; do
-  i=`expr $i + 1`
-done
-mkdir tmpdir_$i
-cd tmpdir_$i
-cat > conftest.$ac_ext <<EOF
-program conftest
-  use iso_c_binding
-end program conftest
-EOF
-if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s conftest${ac_exeext}; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-
-  FDEFINES="$psblas_cv_define_prepend-DHAVE_ISO_C_BINDING $FDEFINES"
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-fi
-cd ..
-rm -fr tmpdir_$i
-
-
 ac_exeext=''
 ac_ext='f90'
 ac_link='${MPIFC-$FC} -o conftest${ac_exeext} $FCFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
@@ -7272,7 +7266,7 @@ ac_link='$F77 -o conftest$ac_exeext $FFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_f77_compiler_gnu
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to get verbose linking output from $F77" >&5
 $as_echo_n "checking how to get verbose linking output from $F77... " >&6; }
-if ${ac_cv_prog_f77_v+:} false; then :
+if test "${ac_cv_prog_f77_v+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.$ac_ext <<_ACEOF
@@ -7302,8 +7296,7 @@ $as_echo "$as_me:${as_lineno-$LINENO}: $*" >&5
 # gfortran 4.3 outputs lines setting COLLECT_GCC_OPTIONS, COMPILER_PATH,
 # LIBRARY_PATH; skip all such settings.
 ac_f77_v_output=`eval $ac_link 5>&1 2>&1 |
-  sed '/^Driving:/d; /^Configured with:/d;
-      '"/^[_$as_cr_Letters][_$as_cr_alnum]*=/d"`
+  grep -v 'Driving:' | grep -v "^[_$as_cr_Letters][_$as_cr_alnum]*="`
 $as_echo "$ac_f77_v_output" >&5
 FFLAGS=$ac_save_FFLAGS
 
@@ -7368,7 +7361,7 @@ fi
 $as_echo "$ac_cv_prog_f77_v" >&6; }
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Fortran 77 libraries of $F77" >&5
 $as_echo_n "checking for Fortran 77 libraries of $F77... " >&6; }
-if ${ac_cv_f77_libs+:} false; then :
+if test "${ac_cv_f77_libs+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test "x$FLIBS" != "x"; then
@@ -7393,8 +7386,7 @@ $as_echo "$as_me:${as_lineno-$LINENO}: $*" >&5
 # gfortran 4.3 outputs lines setting COLLECT_GCC_OPTIONS, COMPILER_PATH,
 # LIBRARY_PATH; skip all such settings.
 ac_f77_v_output=`eval $ac_link 5>&1 2>&1 |
-  sed '/^Driving:/d; /^Configured with:/d;
-      '"/^[_$as_cr_Letters][_$as_cr_alnum]*=/d"`
+  grep -v 'Driving:' | grep -v "^[_$as_cr_Letters][_$as_cr_alnum]*="`
 $as_echo "$ac_f77_v_output" >&5
 FFLAGS=$ac_save_FFLAGS
 
@@ -7484,7 +7476,7 @@ fi
 	  ;;
 	  # Ignore these flags.
 	-lang* | -lcrt*.o | -lc | -lgcc* | -lSystem | -libmil | -little \
-	  |-LANG:=* | -LIST:* | -LNO:* | -link)
+	  |-LANG:=* | -LIST:* | -LNO:*)
 	  ;;
 	-lkernel32)
 	  test x"$CYGWIN" != xyes && ac_cv_f77_libs="$ac_cv_f77_libs $ac_arg"
@@ -7582,7 +7574,7 @@ ac_compiler_gnu=$ac_cv_f77_compiler_gnu
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dummy main to link with Fortran 77 libraries" >&5
 $as_echo_n "checking for dummy main to link with Fortran 77 libraries... " >&6; }
-if ${ac_cv_f77_dummy_main+:} false; then :
+if test "${ac_cv_f77_dummy_main+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_f77_dm_save_LIBS=$LIBS
@@ -7694,7 +7686,7 @@ ac_link='$F77 -o conftest$ac_exeext $FFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_f77_compiler_gnu
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Fortran 77 name-mangling scheme" >&5
 $as_echo_n "checking for Fortran 77 name-mangling scheme... " >&6; }
-if ${ac_cv_f77_mangling+:} false; then :
+if test "${ac_cv_f77_mangling+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   cat > conftest.$ac_ext <<_ACEOF
@@ -7956,7 +7948,7 @@ fi
 if test $pac_blas_ok = no; then
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ATL_xerbla in -latlas" >&5
 $as_echo_n "checking for ATL_xerbla in -latlas... " >&6; }
-if ${ac_cv_lib_atlas_ATL_xerbla+:} false; then :
+if test "${ac_cv_lib_atlas_ATL_xerbla+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -7998,7 +7990,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_atlas_ATL_xerbla" >&5
 $as_echo "$ac_cv_lib_atlas_ATL_xerbla" >&6; }
-if test "x$ac_cv_lib_atlas_ATL_xerbla" = xyes; then :
+if test "x$ac_cv_lib_atlas_ATL_xerbla" = x""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 $LIBS >&5'
@@ -8006,7 +7998,7 @@ ac_compiler_gnu=$ac_cv_fc_compiler_gnu
 
 		 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sgemm in -lf77blas" >&5
 $as_echo_n "checking for sgemm in -lf77blas... " >&6; }
-if ${ac_cv_lib_f77blas_sgemm+:} false; then :
+if test "${ac_cv_lib_f77blas_sgemm+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8027,7 +8019,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_f77blas_sgemm" >&5
 $as_echo "$ac_cv_lib_f77blas_sgemm" >&6; }
-if test "x$ac_cv_lib_f77blas_sgemm" = xyes; then :
+if test "x$ac_cv_lib_f77blas_sgemm" = x""yes; then :
   ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -8036,7 +8028,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 		 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cblas_dgemm in -lcblas" >&5
 $as_echo_n "checking for cblas_dgemm in -lcblas... " >&6; }
-if ${ac_cv_lib_cblas_cblas_dgemm+:} false; then :
+if test "${ac_cv_lib_cblas_cblas_dgemm+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8078,7 +8070,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_cblas_cblas_dgemm" >&5
 $as_echo "$ac_cv_lib_cblas_cblas_dgemm" >&6; }
-if test "x$ac_cv_lib_cblas_cblas_dgemm" = xyes; then :
+if test "x$ac_cv_lib_cblas_cblas_dgemm" = x""yes; then :
   pac_blas_ok=yes
 			 BLAS_LIBS="-lcblas -lf77blas -latlas"
 fi
@@ -8105,7 +8097,7 @@ ac_compiler_gnu=$ac_cv_fc_compiler_gnu
 
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sgemm in -lblas" >&5
 $as_echo_n "checking for sgemm in -lblas... " >&6; }
-if ${ac_cv_lib_blas_sgemm+:} false; then :
+if test "${ac_cv_lib_blas_sgemm+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8126,10 +8118,10 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_blas_sgemm" >&5
 $as_echo "$ac_cv_lib_blas_sgemm" >&6; }
-if test "x$ac_cv_lib_blas_sgemm" = xyes; then :
+if test "x$ac_cv_lib_blas_sgemm" = x""yes; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dgemm in -ldgemm" >&5
 $as_echo_n "checking for dgemm in -ldgemm... " >&6; }
-if ${ac_cv_lib_dgemm_dgemm+:} false; then :
+if test "${ac_cv_lib_dgemm_dgemm+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8150,10 +8142,10 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dgemm_dgemm" >&5
 $as_echo "$ac_cv_lib_dgemm_dgemm" >&6; }
-if test "x$ac_cv_lib_dgemm_dgemm" = xyes; then :
+if test "x$ac_cv_lib_dgemm_dgemm" = x""yes; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sgemm in -lsgemm" >&5
 $as_echo_n "checking for sgemm in -lsgemm... " >&6; }
-if ${ac_cv_lib_sgemm_sgemm+:} false; then :
+if test "${ac_cv_lib_sgemm_sgemm+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8174,7 +8166,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_sgemm_sgemm" >&5
 $as_echo "$ac_cv_lib_sgemm_sgemm" >&6; }
-if test "x$ac_cv_lib_sgemm_sgemm" = xyes; then :
+if test "x$ac_cv_lib_sgemm_sgemm" = x""yes; then :
   pac_blas_ok=yes; BLAS_LIBS="-lsgemm -ldgemm -lblas"
 fi
 
@@ -8195,7 +8187,7 @@ if test $pac_blas_ok = no; then
 	as_ac_Lib=`$as_echo "ac_cv_lib_cxml_$sgemm" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $sgemm in -lcxml" >&5
 $as_echo_n "checking for $sgemm in -lcxml... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8249,7 +8241,7 @@ if test $pac_blas_ok = no; then
 	as_ac_Lib=`$as_echo "ac_cv_lib_dxml_$sgemm" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $sgemm in -ldxml" >&5
 $as_echo_n "checking for $sgemm in -ldxml... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8304,7 +8296,7 @@ if test $pac_blas_ok = no; then
 	if test "x$GCC" != xyes; then # only works with Sun CC
 		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for acosp in -lsunmath" >&5
 $as_echo_n "checking for acosp in -lsunmath... " >&6; }
-if ${ac_cv_lib_sunmath_acosp+:} false; then :
+if test "${ac_cv_lib_sunmath_acosp+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8346,11 +8338,11 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_sunmath_acosp" >&5
 $as_echo "$ac_cv_lib_sunmath_acosp" >&6; }
-if test "x$ac_cv_lib_sunmath_acosp" = xyes; then :
+if test "x$ac_cv_lib_sunmath_acosp" = x""yes; then :
   as_ac_Lib=`$as_echo "ac_cv_lib_sunperf_$sgemm" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $sgemm in -lsunperf" >&5
 $as_echo_n "checking for $sgemm in -lsunperf... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8409,7 +8401,7 @@ if test $pac_blas_ok = no; then
 	as_ac_Lib=`$as_echo "ac_cv_lib_scs_$sgemm" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $sgemm in -lscs" >&5
 $as_echo_n "checking for $sgemm in -lscs... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8463,7 +8455,7 @@ if test $pac_blas_ok = no; then
 	as_ac_Lib=`$as_echo "ac_cv_lib_complib.sgimath_$sgemm" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $sgemm in -lcomplib.sgimath" >&5
 $as_echo_n "checking for $sgemm in -lcomplib.sgimath... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8517,7 +8509,7 @@ if test $pac_blas_ok = no; then
 	as_ac_Lib=`$as_echo "ac_cv_lib_blas_$sgemm" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $sgemm in -lblas" >&5
 $as_echo_n "checking for $sgemm in -lblas... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8564,7 +8556,7 @@ if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
   as_ac_Lib=`$as_echo "ac_cv_lib_essl_$sgemm" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $sgemm in -lessl" >&5
 $as_echo_n "checking for $sgemm in -lessl... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8662,7 +8654,7 @@ ac_compiler_gnu=$ac_cv_fc_compiler_gnu
 
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sgemm in -lblas" >&5
 $as_echo_n "checking for sgemm in -lblas... " >&6; }
-if ${ac_cv_lib_blas_sgemm+:} false; then :
+if test "${ac_cv_lib_blas_sgemm+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8683,7 +8675,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_blas_sgemm" >&5
 $as_echo "$ac_cv_lib_blas_sgemm" >&6; }
-if test "x$ac_cv_lib_blas_sgemm" = xyes; then :
+if test "x$ac_cv_lib_blas_sgemm" = x""yes; then :
   pac_blas_ok=yes; BLAS_LIBS="-lblas"
 fi
 
@@ -8697,7 +8689,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
     as_ac_Lib=`$as_echo "ac_cv_lib_blas_$sgemm" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $sgemm in -lblas" >&5
 $as_echo_n "checking for $sgemm in -lblas... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8898,7 +8890,7 @@ ac_compiler_gnu=$ac_cv_fc_compiler_gnu
 		as_ac_Lib=`$as_echo "ac_cv_lib_$lapack''_cheev" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cheev in -l$lapack" >&5
 $as_echo_n "checking for cheev in -l$lapack... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -9028,7 +9020,7 @@ if test "x$psblas_cv_metis" != "x" ; then
 	as_ac_Lib=`$as_echo "ac_cv_lib_"m"''_METIS_PartGraphRecursive" | $as_tr_sh`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for METIS_PartGraphRecursive in -l\"m\"" >&5
 $as_echo_n "checking for METIS_PartGraphRecursive in -l\"m\"... " >&6; }
-if eval \${$as_ac_Lib+:} false; then :
+if eval "test \"\${$as_ac_Lib+set}\"" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -9082,7 +9074,7 @@ else
 	LIBS="-lm $LIBS";
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for METIS_PartGraphRecursive in -lmetis" >&5
 $as_echo_n "checking for METIS_PartGraphRecursive in -lmetis... " >&6; }
-if ${ac_cv_lib_metis_METIS_PartGraphRecursive+:} false; then :
+if test "${ac_cv_lib_metis_METIS_PartGraphRecursive+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -9124,7 +9116,7 @@ LIBS=$ac_check_lib_save_LIBS
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_metis_METIS_PartGraphRecursive" >&5
 $as_echo "$ac_cv_lib_metis_METIS_PartGraphRecursive" >&6; }
-if test "x$ac_cv_lib_metis_METIS_PartGraphRecursive" = xyes; then :
+if test "x$ac_cv_lib_metis_METIS_PartGraphRecursive" = x""yes; then :
   psblas_cv_have_metis=yes;METIS_LIBS="-lmetis"
 else
   psblas_cv_have_metis=no
@@ -9195,7 +9187,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: amd dir $psblas_cv_amddir" >&5
 $as_echo "$as_me: amd dir $psblas_cv_amddir" >&6;}
 ac_fn_c_check_header_mongrel "$LINENO" "amd.h" "ac_cv_header_amd_h" "$ac_includes_default"
-if test "x$ac_cv_header_amd_h" = xyes; then :
+if test "x$ac_cv_header_amd_h" = x""yes; then :
   pac_amd_header_ok=yes
 else
   pac_amd_header_ok=no; AMD_INCLUDES=""
@@ -9210,7 +9202,7 @@ if test "x$pac_amd_header_ok" == "xno" ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for amd_h in $AMD_INCLUDES" >&5
 $as_echo_n "checking for amd_h in $AMD_INCLUDES... " >&6; }
  ac_fn_c_check_header_mongrel "$LINENO" "amd.h" "ac_cv_header_amd_h" "$ac_includes_default"
-if test "x$ac_cv_header_amd_h" = xyes; then :
+if test "x$ac_cv_header_amd_h" = x""yes; then :
   pac_amd_header_ok=yes
 else
   pac_amd_header_ok=no; AMD_INCLUDES=""
@@ -9223,7 +9215,7 @@ if test "x$pac_amd_header_ok" == "xno" ; then
    AMD_INCLUDES="-I$psblas_cv_amddir/UFconfig -I$psblas_cv_amddir/AMD/Include -I$psblas_cv_amddir/AMD/Include"
    CPPFLAGS="$AMD_INCLUDES $SAVE_CPPFLAGS"
    ac_fn_c_check_header_mongrel "$LINENO" "amd.h" "ac_cv_header_amd_h" "$ac_includes_default"
-if test "x$ac_cv_header_amd_h" = xyes; then :
+if test "x$ac_cv_header_amd_h" = x""yes; then :
   pac_amd_header_ok=yes
 else
   pac_amd_header_ok=no; AMD_INCLUDES=""
@@ -9529,21 +9521,10 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      :end' >>confcache
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
-    if test "x$cache_file" != "x/dev/null"; then
+    test "x$cache_file" != "x/dev/null" &&
       { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
 $as_echo "$as_me: updating cache $cache_file" >&6;}
-      if test ! -f "$cache_file" || test -h "$cache_file"; then
-	cat confcache >"$cache_file"
-      else
-        case $cache_file in #(
-        */* | ?:*)
-	  mv -f confcache "$cache_file"$$ &&
-	  mv -f "$cache_file"$$ "$cache_file" ;; #(
-        *)
-	  mv -f confcache "$cache_file" ;;
-	esac
-      fi
-    fi
+    cat confcache >$cache_file
   else
     { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
 $as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
@@ -9627,7 +9608,7 @@ else
 fi
 
 
-: "${CONFIG_STATUS=./config.status}"
+: ${CONFIG_STATUS=./config.status}
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
@@ -9728,7 +9709,6 @@ fi
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
-as_myself=
 case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -10036,7 +10016,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # values after options handling.
 ac_log="
 This file was extended by PSBLAS $as_me 3.0, which was
-generated by GNU Autoconf 2.68.  Invocation command line was
+generated by GNU Autoconf 2.66.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -10093,7 +10073,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
 PSBLAS config.status 3.0
-configured by $0, generated by GNU Autoconf 2.68,
+configured by $0, generated by GNU Autoconf 2.66,
   with options \\"\$ac_cs_config\\"
 
 Copyright (C) 2010 Free Software Foundation, Inc.
@@ -10114,16 +10094,11 @@ ac_need_defaults=:
 while test $# != 0
 do
   case $1 in
-  --*=?*)
+  --*=*)
     ac_option=`expr "X$1" : 'X\([^=]*\)='`
     ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
     ac_shift=:
     ;;
-  --*=)
-    ac_option=`expr "X$1" : 'X\([^=]*\)='`
-    ac_optarg=
-    ac_shift=:
-    ;;
   *)
     ac_option=$1
     ac_optarg=$2
@@ -10145,7 +10120,6 @@ do
     $ac_shift
     case $ac_optarg in
     *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
-    '') as_fn_error $? "missing file argument" ;;
     esac
     as_fn_append CONFIG_FILES " '$ac_optarg'"
     ac_need_defaults=false;;
@@ -10235,10 +10209,9 @@ fi
 # after its creation but before its name has been assigned to `$tmp'.
 $debug ||
 {
-  tmp= ac_tmp=
+  tmp=
   trap 'exit_status=$?
-  : "${ac_tmp:=$tmp}"
-  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+  { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
 ' 0
   trap 'as_fn_exit 1' 1 2 13 15
 }
@@ -10246,13 +10219,12 @@ $debug ||
 
 {
   tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
-  test -d "$tmp"
+  test -n "$tmp" && test -d "$tmp"
 }  ||
 {
   tmp=./conf$$-$RANDOM
   (umask 077 && mkdir "$tmp")
 } || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
-ac_tmp=$tmp
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
@@ -10274,7 +10246,7 @@ else
   ac_cs_awk_cr=$ac_cr
 fi
 
-echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+echo 'BEGIN {' >"$tmp/subs1.awk" &&
 _ACEOF
 
 
@@ -10302,7 +10274,7 @@ done
 rm -f conf$$subs.sh
 
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+cat >>"\$tmp/subs1.awk" <<\\_ACAWK &&
 _ACEOF
 sed -n '
 h
@@ -10350,7 +10322,7 @@ t delim
 rm -f conf$$subs.awk
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 _ACAWK
-cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+cat >>"\$tmp/subs1.awk" <<_ACAWK &&
   for (key in S) S_is_set[key] = 1
   FS = ""
 
@@ -10382,7 +10354,7 @@ if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
   sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
 else
   cat
-fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+fi < "$tmp/subs1.awk" > "$tmp/subs.awk" \
   || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
 _ACEOF
 
@@ -10441,7 +10413,7 @@ do
     for ac_f
     do
       case $ac_f in
-      -) ac_f="$ac_tmp/stdin";;
+      -) ac_f="$tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
 	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
 	 # because $ac_f cannot contain `:'.
@@ -10476,7 +10448,7 @@ $as_echo "$as_me: creating $ac_file" >&6;}
     esac
 
     case $ac_tag in
-    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+    *:-:* | *:-) cat >"$tmp/stdin" \
       || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
     esac
     ;;
@@ -10613,22 +10585,21 @@ s&@INSTALL@&$ac_INSTALL&;t t
 s&@MKDIR_P@&$ac_MKDIR_P&;t t
 $ac_datarootdir_hack
 "
-eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
-  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$tmp/subs.awk" >$tmp/out \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
 
 test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
-  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
-  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
-      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' "$tmp/out"`; test -z "$ac_out"; } &&
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
 $as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
-  rm -f "$ac_tmp/stdin"
+  rm -f "$tmp/stdin"
   case $ac_file in
-  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
-  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  -) cat "$tmp/out" && rm -f "$tmp/out";;
+  *) rm -f "$ac_file" && mv "$tmp/out" "$ac_file";;
   esac \
   || as_fn_error $? "could not create $ac_file" "$LINENO" 5
  ;;
diff --git a/configure.ac b/configure.ac
index ab92e0c9..c9a0f02f 100755
--- a/configure.ac
+++ b/configure.ac
@@ -559,6 +559,12 @@ PAC_FORTRAN_HAVE_MOVE_ALLOC(
  Please get a Fortran compiler that supports it, e.g. GNU Fortran 4.6.])]
 )
 
+PAC_FORTRAN_TEST_ISO_C_BIND( 
+	[FDEFINES="$psblas_cv_define_prepend-DHAVE_ISO_C_BINDING $FDEFINES"],
+        [AC_MSG_ERROR([Sorry, cannot build PSBLAS without support for ISO_C_BINDING. 
+ Please get a Fortran compiler that supports it, e.g. GNU Fortran 4.6.])]
+)
+
 #
 # Optional features
 #
@@ -575,11 +581,6 @@ PAC_FORTRAN_TEST_ISO_FORTRAN_ENV(
 	[FDEFINES="$psblas_cv_define_prepend-DHAVE_ISO_FORTRAN_ENV $FDEFINES"],
 )
 
-PAC_FORTRAN_TEST_ISO_C_BIND( 
-	[FDEFINES="$psblas_cv_define_prepend-DHAVE_ISO_C_BINDING $FDEFINES"],
-)
-
-
 PAC_FORTRAN_TEST_FINAL( 
 	[FDEFINES="$psblas_cv_define_prepend-DHAVE_FINAL $FDEFINES"],
 )