Application of patch

	Fortran REAL*16 detection
	http://www.cactuscode.org/old/pipermail/patches/2006-April/000164.html

... a patch that makes Cactus directly detect Fortran support
for a REAL*16 type.

The problem has been that Cactus based CCTK_REAL16 on support for the C type
'long double'.  This would cause it to create Fortran code for REAL*16, a
type which was sometimes not supported.

In particular, on a 64-bit Athlon machine with Gnu 4.1.0, gfortran
defines REAL*8 but not REAL*16, while gcc defines 'long double'.
This caused thorn AEIThorns/Fortran to fail to compile.

This patch causes the configuration to directly compile Fortran code that
features REAL*16, and define CCTK_REAL16 only if that compiles *and* C's
'long double' is supported.

When you make config, you will see a new line about Fortran REAL*16.

I have tested the enclosed patch on
	my laptop with Gnu 4.10 and Intel 9.0 compilers
	64-bit AMD Athlon with same compilers
	POWER4 with IBM XL compilers

BUT NOTE:  I have severe doubts about using REAL*16 on any of these
architectures.  That 16-byte (128-bit) type is not natively supported
on the Xeon, Athlon, or POWER machines.  While some compilers support
such types, calculation is done in software, not on the FPU.


git-svn-id: http://svn.cactuscode.org/flesh/trunk@4314 17b73243-c579-4c4c-a9d2-2d5706c11dac

3 files changed, 338 insertions, 232 deletions

diff --git a/lib/make/aclocal.m4 b/lib/make/aclocal.m4
index 2b8fb597..b066f388 100644
--- a/lib/make/aclocal.m4
+++ b/lib/make/aclocal.m4
@@ -154,7 +154,7 @@ AC_DEFUN(CCTK_PROG_CC_WORKS,
 AC_LANG_SAVE
 AC_LANG_C
 rm -fr conftest*
-AC_TRY_COMPILER([main(){return(0);} PilotMain(){return(0);}], ac_cv_prog_cc_works, ac_cv_prog_cc_cross)
+AC_TRY_COMPILER([main(){return(0);} int PilotMain(){return(0);}], ac_cv_prog_cc_works, ac_cv_prog_cc_cross)
 AC_LANG_RESTORE
 AC_MSG_RESULT($ac_cv_prog_cc_works)
 if test $ac_cv_prog_cc_works = no; then
@@ -181,6 +181,24 @@ AC_MSG_RESULT($ac_cv_prog_cxx_cross)
 cross_compiling=$ac_cv_prog_cxx_cross
 ])
 
+dnl see Autoconf manual: Examining Syntax
+dnl AC_TRY_COMPILE (includes, function-body, [action-if-found [, action-if-not-found]])
+AC_DEFUN(CCTK_PROG_FORTRAN_REAL16_WORKS,
+[AC_MSG_CHECKING([for Fortran REAL*16 ($F77 $F77FLAGS)])
+AC_LANG_SAVE
+AC_LANG_FORTRAN77
+rm -fr conftest*
+AC_TRY_COMPILER([
+      PROGRAM main
+        REAL*16 a
+      END
+      ], ac_cv_real16_works, ac_cv_real16_works_not)
+AC_LANG_RESTORE
+dnl AC_MSG_ERROR([STEEVIE: $ac_cv_real16_works])
+AC_MSG_RESULT($ac_cv_real16_works)
+fortran_does_real16=$ac_cv_real16_works
+])
+
 AC_DEFUN(CCTK_HEADER_REGEX,
 [AC_MSG_CHECKING([for regex.h])
 AC_CACHE_VAL(cctk_cv_header_regex_h,
diff --git a/lib/make/configure b/lib/make/configure
index f2af5aa4..c39c5d14 100755
--- a/lib/make/configure
+++ b/lib/make/configure
@@ -23,6 +23,8 @@
 
 
 
+
+
 # CCTK_CHECK_FUNCS(FUNCTION..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 # ---------------------------------------------------------------------
 
@@ -642,7 +644,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
 fi
 
 echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:646: checking host system type" >&5
+echo "configure:648: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -688,7 +690,7 @@ if test -n "$LIBS" ; then
 fi
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:692: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:694: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -721,7 +723,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:725: checking for $ac_word" >&5
+echo "configure:727: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -753,7 +755,7 @@ done
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:757: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:759: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -765,12 +767,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 rm -fr conftest*
 cat > conftest.$ac_ext << EOF
 
-#line 769 "configure"
+#line 771 "configure"
 #include "confdefs.h"
 
-main(){return(0);} PilotMain(){return(0);}
+main(){return(0);} int PilotMain(){return(0);}
 EOF
-if { (eval echo configure:774: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:776: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -796,12 +798,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:800: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:802: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:805: checking whether we are using GNU C" >&5
+echo "configure:807: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -810,7 +812,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:814: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:816: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -826,7 +828,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:830: checking for $ac_word" >&5
+echo "configure:832: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CXX'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -858,7 +860,7 @@ done
   fi
 
   echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:862: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
+echo "configure:864: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
 
 ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -870,12 +872,12 @@ cross_compiling=$ac_cv_prog_cxx_cross
 rm -fr conftest*
 cat > conftest.$ac_ext << EOF
 
-#line 874 "configure"
+#line 876 "configure"
 #include "confdefs.h"
 
 int main(){return(0);} extern "C" int PilotMain(){return(0);}
 EOF
-if { (eval echo configure:879: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:881: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cxx_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -901,12 +903,12 @@ if test $ac_cv_prog_cxx_works = no; then
   { echo "configure: error: installation or configuration problem: C++ compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:905: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:907: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cxx_cross" 1>&6
 cross_compiling=$ac_cv_prog_cxx_cross
 
   echo $ac_n "checking whether we are using GNU C++""... $ac_c" 1>&6
-echo "configure:910: checking whether we are using GNU C++" >&5
+echo "configure:912: checking whether we are using GNU C++" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -915,7 +917,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:919: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:921: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gxx=yes
 else
   ac_cv_prog_gxx=no
@@ -929,7 +931,7 @@ if test -z "$RANLIB" ; then
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:933: checking for $ac_word" >&5
+echo "configure:935: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -965,7 +967,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:969: checking for $ac_word" >&5
+echo "configure:971: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CPP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1011,7 +1013,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1015: checking for $ac_word" >&5
+echo "configure:1017: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_FPP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1055,7 +1057,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1059: checking for $ac_word" >&5
+echo "configure:1061: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_PERL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1092,7 +1094,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1096: checking for $ac_word" >&5
+echo "configure:1098: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_F90'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1129,7 +1131,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1133: checking for $ac_word" >&5
+echo "configure:1135: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_F77'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1166,7 +1168,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1170: checking for $ac_word" >&5
+echo "configure:1172: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1203,7 +1205,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1207: checking for $ac_word" >&5
+echo "configure:1209: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_MKDIR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1240,7 +1242,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1244: checking for $ac_word" >&5
+echo "configure:1246: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_SHELL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1359,7 +1361,7 @@ unset LDFLAGS
 
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1363: checking how to run the C preprocessor" >&5
+echo "configure:1365: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1374,13 +1376,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1378 "configure"
+#line 1380 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1384: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1386: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1391,13 +1393,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1395 "configure"
+#line 1397 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1401: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1403: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1408,13 +1410,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1412 "configure"
+#line 1414 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1418: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1420: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1439,12 +1441,12 @@ fi
 echo "$ac_t""$CPP" 1>&6
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:1443: checking for ANSI C header files" >&5
+echo "configure:1445: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1448 "configure"
+#line 1450 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -1452,7 +1454,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1456: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1458: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1469,7 +1471,7 @@ rm -f conftest*
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 1473 "configure"
+#line 1475 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -1487,7 +1489,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 1491 "configure"
+#line 1493 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -1508,7 +1510,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 1512 "configure"
+#line 1514 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -1519,7 +1521,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:1523: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1525: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -1546,14 +1548,14 @@ fi
 
 if test "x$cross_compiling" = 'xno' ; then
   echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
-echo "configure:1550: checking whether byte ordering is bigendian" >&5
+echo "configure:1552: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_cv_c_bigendian=unknown
 # See if sys/param.h defines the BYTE_ORDER macro.
 cat > conftest.$ac_ext <<EOF
-#line 1557 "configure"
+#line 1559 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -1564,11 +1566,11 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:1568: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1570: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   # It does; now see whether it defined to BIG_ENDIAN or not.
 cat > conftest.$ac_ext <<EOF
-#line 1572 "configure"
+#line 1574 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -1579,7 +1581,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:1583: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1585: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
@@ -1599,7 +1601,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1603 "configure"
+#line 1605 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -1612,7 +1614,7 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-if { (eval echo configure:1616: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1618: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_bigendian=no
 else
@@ -1655,7 +1657,7 @@ if test "x$cross_compiling" = 'xyes' -a -z "$SIZEOF_LONG_LONG" ; then
 fi
 
 echo $ac_n "checking size of long long""... $ac_c" 1>&6
-echo "configure:1659: checking size of long long" >&5
+echo "configure:1661: checking size of long long" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_long_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1663,9 +1665,10 @@ else
   ac_cv_sizeof_long_long=$SIZEOF_LONG_LONG
 else
   cat > conftest.$ac_ext <<EOF
-#line 1667 "configure"
+#line 1669 "configure"
 #include "confdefs.h"
 #include <stdio.h>
+#include <sys/types.h>
 main()
 {
   FILE *f=fopen("conftestval", "w");
@@ -1674,7 +1677,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1678: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1681: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_long_long=`cat conftestval`
 else
@@ -1699,7 +1702,7 @@ if test "x$cross_compiling" = 'xyes' -a -z "$SIZEOF_LONG_INT" ; then
 fi
 
 echo $ac_n "checking size of long int""... $ac_c" 1>&6
-echo "configure:1703: checking size of long int" >&5
+echo "configure:1706: checking size of long int" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_long_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1707,9 +1710,10 @@ else
   ac_cv_sizeof_long_int=$SIZEOF_LONG_INT
 else
   cat > conftest.$ac_ext <<EOF
-#line 1711 "configure"
+#line 1714 "configure"
 #include "confdefs.h"
 #include <stdio.h>
+#include <sys/types.h>
 main()
 {
   FILE *f=fopen("conftestval", "w");
@@ -1718,7 +1722,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1722: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1726: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_long_int=`cat conftestval`
 else
@@ -1743,7 +1747,7 @@ if test "x$cross_compiling" = 'xyes' -a -z "$SIZEOF_INT" ; then
 fi
 
 echo $ac_n "checking size of int""... $ac_c" 1>&6
-echo "configure:1747: checking size of int" >&5
+echo "configure:1751: checking size of int" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1751,9 +1755,10 @@ else
   ac_cv_sizeof_int=$SIZEOF_INT
 else
   cat > conftest.$ac_ext <<EOF
-#line 1755 "configure"
+#line 1759 "configure"
 #include "confdefs.h"
 #include <stdio.h>
+#include <sys/types.h>
 main()
 {
   FILE *f=fopen("conftestval", "w");
@@ -1762,7 +1767,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1766: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1771: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_int=`cat conftestval`
 else
@@ -1787,7 +1792,7 @@ if test "x$cross_compiling" = 'xyes' -a -z "$SIZEOF_SHORT_INT" ; then
 fi
 
 echo $ac_n "checking size of short int""... $ac_c" 1>&6
-echo "configure:1791: checking size of short int" >&5
+echo "configure:1796: checking size of short int" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_short_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1795,9 +1800,10 @@ else
   ac_cv_sizeof_short_int=$SIZEOF_SHORT_INT
 else
   cat > conftest.$ac_ext <<EOF
-#line 1799 "configure"
+#line 1804 "configure"
 #include "confdefs.h"
 #include <stdio.h>
+#include <sys/types.h>
 main()
 {
   FILE *f=fopen("conftestval", "w");
@@ -1806,7 +1812,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1810: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1816: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_short_int=`cat conftestval`
 else
@@ -1833,7 +1839,7 @@ if test "x$cross_compiling" = 'xyes' -a -z "$SIZEOF_LONG_DOUBLE" ; then
 fi
 
 echo $ac_n "checking size of long double""... $ac_c" 1>&6
-echo "configure:1837: checking size of long double" >&5
+echo "configure:1843: checking size of long double" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_long_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1841,9 +1847,10 @@ else
   ac_cv_sizeof_long_double=$SIZEOF_LONG_DOUBLE
 else
   cat > conftest.$ac_ext <<EOF
-#line 1845 "configure"
+#line 1851 "configure"
 #include "confdefs.h"
 #include <stdio.h>
+#include <sys/types.h>
 main()
 {
   FILE *f=fopen("conftestval", "w");
@@ -1852,7 +1859,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1856: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1863: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_long_double=`cat conftestval`
 else
@@ -1877,7 +1884,7 @@ if test "x$cross_compiling" = 'xyes' -a -z "$SIZEOF_DOUBLE" ; then
 fi
 
 echo $ac_n "checking size of double""... $ac_c" 1>&6
-echo "configure:1881: checking size of double" >&5
+echo "configure:1888: checking size of double" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1885,9 +1892,10 @@ else
   ac_cv_sizeof_double=$SIZEOF_DOUBLE
 else
   cat > conftest.$ac_ext <<EOF
-#line 1889 "configure"
+#line 1896 "configure"
 #include "confdefs.h"
 #include <stdio.h>
+#include <sys/types.h>
 main()
 {
   FILE *f=fopen("conftestval", "w");
@@ -1896,7 +1904,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1900: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1908: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_double=`cat conftestval`
 else
@@ -1922,7 +1930,7 @@ if test "x$cross_compiling" = 'xyes' -a -z "$SIZEOF_FLOAT" ; then
 fi
 
 echo $ac_n "checking size of float""... $ac_c" 1>&6
-echo "configure:1926: checking size of float" >&5
+echo "configure:1934: checking size of float" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_float'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1930,9 +1938,10 @@ else
   ac_cv_sizeof_float=$SIZEOF_FLOAT
 else
   cat > conftest.$ac_ext <<EOF
-#line 1934 "configure"
+#line 1942 "configure"
 #include "confdefs.h"
 #include <stdio.h>
+#include <sys/types.h>
 main()
 {
   FILE *f=fopen("conftestval", "w");
@@ -1941,7 +1950,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1945: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1954: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_float=`cat conftestval`
 else
@@ -1968,7 +1977,7 @@ if test "x$cross_compiling" = 'xyes' -a -z "$SIZEOF_POINTER" ; then
 fi
 
 echo $ac_n "checking size of char *""... $ac_c" 1>&6
-echo "configure:1972: checking size of char *" >&5
+echo "configure:1981: checking size of char *" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_char_p'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1976,9 +1985,10 @@ else
   ac_cv_sizeof_char_p=$SIZEOF_POINTER
 else
   cat > conftest.$ac_ext <<EOF
-#line 1980 "configure"
+#line 1989 "configure"
 #include "confdefs.h"
 #include <stdio.h>
+#include <sys/types.h>
 main()
 {
   FILE *f=fopen("conftestval", "w");
@@ -1987,7 +1997,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1991: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2001: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_char_p=`cat conftestval`
 else
@@ -2022,7 +2032,7 @@ EOF
 
 else
   echo $ac_n "checking for the null device""... $ac_c" 1>&6
-echo "configure:2026: checking for the null device" >&5
+echo "configure:2036: checking for the null device" >&5
 if eval "test \"`echo '$''{'cctk_cv_nulldevice'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2085,12 +2095,12 @@ ac_link='${CC-cc} -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_
 for ac_func in gethostbyname
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2089: checking for $ac_func" >&5
+echo "configure:2099: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2094 "configure"
+#line 2104 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2113,7 +2123,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2117: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2127: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2135,7 +2145,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for gethostbyname in library nsl""... $ac_c" 1>&6
-echo "configure:2139: checking for gethostbyname in library nsl" >&5
+echo "configure:2149: checking for gethostbyname in library nsl" >&5
 ac_lib_var=`echo nsl'_'gethostbyname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2144,7 +2154,7 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="nsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2148 "configure"
+#line 2158 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2155,7 +2165,7 @@ int main() {
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:2159: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2169: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2186,12 +2196,12 @@ done
 
 # Check if we have mode_t available
 echo $ac_n "checking if mode_t is defined""... $ac_c" 1>&6
-echo "configure:2190: checking if mode_t is defined" >&5
+echo "configure:2200: checking if mode_t is defined" >&5
 if eval "test \"`echo '$''{'cctk_cv_have_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2195 "configure"
+#line 2205 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <stdlib.h>
@@ -2201,7 +2211,7 @@ int main() {
 mode_t foo; return 0
 ; return 0; }
 EOF
-if { (eval echo configure:2205: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2215: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_have_mode_t=yes"
 else
@@ -2227,12 +2237,12 @@ fi
 
 
 echo $ac_n "checking for availability of gettimeofday timing""... $ac_c" 1>&6
-echo "configure:2231: checking for availability of gettimeofday timing" >&5
+echo "configure:2241: checking for availability of gettimeofday timing" >&5
 if eval "test \"`echo '$''{'cctk_cv_time_gettimeofday'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2236 "configure"
+#line 2246 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -2240,7 +2250,7 @@ gettimeofday(0, 0);
  return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2244: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2254: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "cctk_cv_time_gettimeofday=yes"
 else
@@ -2262,12 +2272,12 @@ else
 fi
 if eval "test \"`echo '$cctk_cv_time_gettimeofday'`\" = yes"; then
 echo $ac_n "checking if gettimeofday needs timezone""... $ac_c" 1>&6
-echo "configure:2266: checking if gettimeofday needs timezone" >&5
+echo "configure:2276: checking if gettimeofday needs timezone" >&5
 if eval "test \"`echo '$''{'cctk_cv_time_gettimeofday_timezone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2271 "configure"
+#line 2281 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/time.h>
@@ -2280,7 +2290,7 @@ struct timeval tp;
  return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2284: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2294: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "cctk_cv_time_gettimeofday_timezone=yes"
 else
@@ -2303,12 +2313,12 @@ fi
 fi
 
 echo $ac_n "checking for availability of getrusage timing""... $ac_c" 1>&6
-echo "configure:2307: checking for availability of getrusage timing" >&5
+echo "configure:2317: checking for availability of getrusage timing" >&5
 if eval "test \"`echo '$''{'cctk_cv_time_getrusage'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2312 "configure"
+#line 2322 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/time.h>
@@ -2321,7 +2331,7 @@ struct rusage ru;
  return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2325: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2335: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "cctk_cv_time_getrusage=yes"
 else
@@ -2343,12 +2353,12 @@ else
 fi
 
 echo $ac_n "checking for availability of _ftime timing""... $ac_c" 1>&6
-echo "configure:2347: checking for availability of _ftime timing" >&5
+echo "configure:2357: checking for availability of _ftime timing" >&5
 if eval "test \"`echo '$''{'cctk_cv_time_ftime'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2352 "configure"
+#line 2362 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <time.h>
@@ -2361,7 +2371,7 @@ int main() {
   return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2365: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2375: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "cctk_cv_time_ftime=yes"
 else
@@ -2388,12 +2398,12 @@ for cctk_hdr in time.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2392: checking for $cctk_hdr" >&5
+echo "configure:2402: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2397 "configure"
+#line 2407 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -2401,7 +2411,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2405: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2415: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2428,12 +2438,12 @@ for cctk_hdr in sys/time.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2432: checking for $cctk_hdr" >&5
+echo "configure:2442: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2437 "configure"
+#line 2447 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -2441,7 +2451,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2445: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2455: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2468,12 +2478,12 @@ for cctk_hdr in sys/types.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2472: checking for $cctk_hdr" >&5
+echo "configure:2482: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2477 "configure"
+#line 2487 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -2481,7 +2491,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2485: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2495: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2508,12 +2518,12 @@ for cctk_hdr in unistd.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2512: checking for $cctk_hdr" >&5
+echo "configure:2522: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2517 "configure"
+#line 2527 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -2521,7 +2531,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2525: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2535: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2548,12 +2558,12 @@ for cctk_hdr in string.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2552: checking for $cctk_hdr" >&5
+echo "configure:2562: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2557 "configure"
+#line 2567 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -2561,7 +2571,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2565: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2575: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2588,12 +2598,12 @@ for cctk_hdr in assert.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2592: checking for $cctk_hdr" >&5
+echo "configure:2602: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2597 "configure"
+#line 2607 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -2601,7 +2611,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2605: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2615: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2628,12 +2638,12 @@ for cctk_hdr in sys/stat.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2632: checking for $cctk_hdr" >&5
+echo "configure:2642: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2637 "configure"
+#line 2647 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -2641,7 +2651,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2645: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2655: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2668,12 +2678,12 @@ for cctk_hdr in getopt.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2672: checking for $cctk_hdr" >&5
+echo "configure:2682: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2677 "configure"
+#line 2687 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -2681,7 +2691,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2685: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2695: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2708,12 +2718,12 @@ for cctk_hdr in dirent.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2712: checking for $cctk_hdr" >&5
+echo "configure:2722: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2717 "configure"
+#line 2727 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -2721,7 +2731,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2725: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2735: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2745,12 +2755,12 @@ fi
 done
 
 echo $ac_n "checking for regex.h""... $ac_c" 1>&6
-echo "configure:2749: checking for regex.h" >&5
+echo "configure:2759: checking for regex.h" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_regex_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2754 "configure"
+#line 2764 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <regex.h>
@@ -2758,7 +2768,7 @@ int main() {
 return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2762: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2772: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_regex_h=yes"
 else
@@ -2783,12 +2793,12 @@ for cctk_hdr in sys/filio.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2787: checking for $cctk_hdr" >&5
+echo "configure:2797: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2792 "configure"
+#line 2802 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
@@ -2798,7 +2808,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2802: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2812: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2825,12 +2835,12 @@ for cctk_hdr in sys/ioctl.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2829: checking for $cctk_hdr" >&5
+echo "configure:2839: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2834 "configure"
+#line 2844 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
@@ -2840,7 +2850,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2844: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2854: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2867,12 +2877,12 @@ for cctk_hdr in sys/socket.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2871: checking for $cctk_hdr" >&5
+echo "configure:2881: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2876 "configure"
+#line 2886 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
@@ -2882,7 +2892,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2886: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2896: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2909,12 +2919,12 @@ for cctk_hdr in netinet/in.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2913: checking for $cctk_hdr" >&5
+echo "configure:2923: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2918 "configure"
+#line 2928 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
@@ -2924,7 +2934,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2928: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2938: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2951,12 +2961,12 @@ for cctk_hdr in netdb.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2955: checking for $cctk_hdr" >&5
+echo "configure:2965: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2960 "configure"
+#line 2970 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
@@ -2966,7 +2976,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:2970: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2980: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2993,12 +3003,12 @@ for cctk_hdr in arpa/inet.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:2997: checking for $cctk_hdr" >&5
+echo "configure:3007: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3002 "configure"
+#line 3012 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
@@ -3008,7 +3018,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3012: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3022: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3035,12 +3045,12 @@ for cctk_hdr in winsock2.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:3039: checking for $cctk_hdr" >&5
+echo "configure:3049: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3044 "configure"
+#line 3054 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -3048,7 +3058,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3052: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3062: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3075,12 +3085,12 @@ for cctk_hdr in crypt.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:3079: checking for $cctk_hdr" >&5
+echo "configure:3089: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3084 "configure"
+#line 3094 "configure"
 #include "confdefs.h"
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
@@ -3090,7 +3100,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3094: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3104: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3117,12 +3127,12 @@ for cctk_hdr in signal.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:3121: checking for $cctk_hdr" >&5
+echo "configure:3131: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3126 "configure"
+#line 3136 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -3130,7 +3140,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3134: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3144: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3155,12 +3165,12 @@ done
 
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:3159: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:3169: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3164 "configure"
+#line 3174 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -3169,7 +3179,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:3173: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3183: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -3194,12 +3204,12 @@ fi
 
 # Check if we have socklen_t available
 echo $ac_n "checking if socklen_t is defined""... $ac_c" 1>&6
-echo "configure:3198: checking if socklen_t is defined" >&5
+echo "configure:3208: checking if socklen_t is defined" >&5
 if eval "test \"`echo '$''{'cctk_cv_have_socklen_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3203 "configure"
+#line 3213 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <stdlib.h>
@@ -3219,7 +3229,7 @@ int main() {
 socklen_t foo; return 0
 ; return 0; }
 EOF
-if { (eval echo configure:3223: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3233: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_have_socklen_t=yes"
 else
@@ -3244,12 +3254,12 @@ fi
 
 # Check if someone has defined SOCKET
 echo $ac_n "checking if SOCKET is defined""... $ac_c" 1>&6
-echo "configure:3248: checking if SOCKET is defined" >&5
+echo "configure:3258: checking if SOCKET is defined" >&5
 if eval "test \"`echo '$''{'cctk_cv_have_SOCKET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3253 "configure"
+#line 3263 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <stdlib.h>
@@ -3269,7 +3279,7 @@ int main() {
 SOCKET foo; return 0
 ; return 0; }
 EOF
-if { (eval echo configure:3273: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3283: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_have_SOCKET=yes"
 else
@@ -3294,19 +3304,19 @@ fi
 
 # Check if we have __int64
 echo $ac_n "checking if __int64 is defined""... $ac_c" 1>&6
-echo "configure:3298: checking if __int64 is defined" >&5
+echo "configure:3308: checking if __int64 is defined" >&5
 if eval "test \"`echo '$''{'cctk_cv_have___int64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3303 "configure"
+#line 3313 "configure"
 #include "confdefs.h"
 
 int main() {
 __int64 foo; return 0
 ; return 0; }
 EOF
-if { (eval echo configure:3310: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3320: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_have___int64=yes"
 else
@@ -3341,12 +3351,12 @@ cross_compiling=$ac_cv_prog_cxx_cross
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:3345: checking for $cctk_hdr" >&5
+echo "configure:3355: checking for $cctk_hdr" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_$cctk_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3350 "configure"
+#line 3360 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -3354,7 +3364,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3358: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3368: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3393,12 +3403,12 @@ ac_link='${CC-cc} -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_
 for ac_func in getopt_long_only
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3397: checking for $ac_func" >&5
+echo "configure:3407: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3402 "configure"
+#line 3412 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3421,7 +3431,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3425: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3435: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3464,12 +3474,12 @@ else
 fi
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:3468: checking for working const" >&5
+echo "configure:3478: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3473 "configure"
+#line 3483 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -3518,7 +3528,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:3522: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3532: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -3539,21 +3549,21 @@ EOF
 fi
 
 echo $ac_n "checking for inline""... $ac_c" 1>&6
-echo "configure:3543: checking for inline" >&5
+echo "configure:3553: checking for inline" >&5
 if eval "test \"`echo '$''{'ac_cv_c_inline'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_cv_c_inline=no
 for ac_kw in inline __inline__ __inline; do
   cat > conftest.$ac_ext <<EOF
-#line 3550 "configure"
+#line 3560 "configure"
 #include "confdefs.h"
 
 int main() {
 } $ac_kw foo() {
 ; return 0; }
 EOF
-if { (eval echo configure:3557: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3567: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_inline=$ac_kw; break
 else
@@ -3580,14 +3590,14 @@ esac
 
 
 echo $ac_n "checking for C restrict""... $ac_c" 1>&6
-echo "configure:3584: checking for C restrict" >&5
+echo "configure:3594: checking for C restrict" >&5
 if eval "test \"`echo '$''{'cctk_cv_c_restrict'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cctk_cv_c_restrict=no
 for ac_kw in restrict __restrict__ __restrict; do
   cat > conftest.$ac_ext <<EOF
-#line 3591 "configure"
+#line 3601 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -3598,7 +3608,7 @@ struct tux { char * $ac_kw arr[3]; };
 
 ; return 0; }
 EOF
-if { (eval echo configure:3602: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3612: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cctk_cv_c_restrict=$ac_kw; break
 else
@@ -3624,7 +3634,7 @@ EOF
 esac
 
 echo $ac_n "checking for C++ restrict""... $ac_c" 1>&6
-echo "configure:3628: checking for C++ restrict" >&5
+echo "configure:3638: checking for C++ restrict" >&5
 if eval "test \"`echo '$''{'cctk_cv_cxx_restrict'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3639,7 +3649,7 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 for ac_kw in restrict __restrict__ __restrict; do
   cat > conftest.$ac_ext <<EOF
-#line 3643 "configure"
+#line 3653 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -3650,7 +3660,7 @@ struct tux { char * $ac_kw arr[3]; };
 
 ; return 0; }
 EOF
-if { (eval echo configure:3654: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3664: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cctk_cv_cxx_restrict=$ac_kw; break
 else
@@ -3684,20 +3694,20 @@ esac
 
 
 echo $ac_n "checking for C bool""... $ac_c" 1>&6
-echo "configure:3688: checking for C bool" >&5
+echo "configure:3698: checking for C bool" >&5
 if eval "test \"`echo '$''{'cctk_cv_have_c_bool'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cctk_cv_have_c_bool=no
 cat > conftest.$ac_ext <<EOF
-#line 3694 "configure"
+#line 3704 "configure"
 #include "confdefs.h"
 
 int main() {
 bool foo;
 ; return 0; }
 EOF
-if { (eval echo configure:3701: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3711: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cctk_cv_have_c_bool=yes
 else
@@ -3719,7 +3729,7 @@ EOF
 fi
 
 echo $ac_n "checking for CXX bool""... $ac_c" 1>&6
-echo "configure:3723: checking for CXX bool" >&5
+echo "configure:3733: checking for CXX bool" >&5
 if eval "test \"`echo '$''{'cctk_cv_have_cxx_bool'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3733,14 +3743,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
 cat > conftest.$ac_ext <<EOF
-#line 3737 "configure"
+#line 3747 "configure"
 #include "confdefs.h"
 
 int main() {
 bool foo;
 ; return 0; }
 EOF
-if { (eval echo configure:3744: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3754: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cctk_cv_have_cxx_bool=yes
 else
@@ -3769,14 +3779,80 @@ EOF
 fi
 
 
+echo $ac_n "checking for Fortran REAL*16 ($F77 $F77FLAGS)""... $ac_c" 1>&6
+echo "configure:3784: checking for Fortran REAL*16 ($F77 $F77FLAGS)" >&5
+
+ac_ext=f
+ac_compile='${F77-f77} -c $FFLAGS conftest.$ac_ext 1>&5'
+ac_link='${F77-f77} -o conftest${ac_exeext} $FFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_f77_cross
+
+rm -fr conftest*
+cat > conftest.$ac_ext << EOF
+
+
+      PROGRAM main
+        REAL*16 a
+      END
+      
+EOF
+if { (eval echo configure:3800: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  ac_cv_real16_works=yes
+  # If we can't run a trivial program, we are probably using a cross compiler.
+  if (./conftest; exit) 2>/dev/null; then
+    ac_cv_real16_works_not=no
+  else
+    ac_cv_real16_works_not=yes
+  fi
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_cv_real16_works=no
+fi
+rm -fr conftest*
+ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+echo "$ac_t""$ac_cv_real16_works" 1>&6
+fortran_does_real16=$ac_cv_real16_works
+
+echo $ac_n "checking whether we are using GNU C++""... $ac_c" 1>&6
+echo "configure:3825: checking whether we are using GNU C++" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.C <<EOF
+#ifdef __GNUC__
+  yes;
+#endif
+EOF
+if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:3834: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+  ac_cv_prog_gxx=yes
+else
+  ac_cv_prog_gxx=no
+fi
+fi
+
+echo "$ac_t""$ac_cv_prog_gxx" 1>&6
+if test "$fortran_does_real16" = 'yes'; then
+  cat >> confdefs.h <<\EOF
+#define HAVE_FORTRAN_REAL16 1
+EOF
+
+fi
+
 ac_link='${CC-cc} -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext `CCTK_Wrap "$LIBDIR_PREFIX" "$LIBDIR_SUFFIX" "$LIBDIRS"` `CCTK_Wrap "$LIBLINK_PREFIX" "$LIBLINK_SUFFIX" "$LIBS"` >&5'
 echo $ac_n "checking for crypt""... $ac_c" 1>&6
-echo "configure:3775: checking for crypt" >&5
+echo "configure:3851: checking for crypt" >&5
 if eval "test \"`echo '$''{'ac_cv_func_crypt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3780 "configure"
+#line 3856 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char crypt(); below.  */
@@ -3799,7 +3875,7 @@ crypt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3803: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3879: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_crypt=yes"
 else
@@ -3817,7 +3893,7 @@ if eval "test \"`echo '$ac_cv_func_'crypt`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for crypt in library crypt""... $ac_c" 1>&6
-echo "configure:3821: checking for crypt in library crypt" >&5
+echo "configure:3897: checking for crypt in library crypt" >&5
 ac_lib_var=`echo crypt'_'crypt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3826,7 +3902,7 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="crypt  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3830 "configure"
+#line 3906 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3837,7 +3913,7 @@ int main() {
 crypt()
 ; return 0; }
 EOF
-if { (eval echo configure:3841: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3917: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3878,12 +3954,12 @@ ac_link='${CC-cc} -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_
 for ac_func in finite
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3882: checking for $ac_func" >&5
+echo "configure:3958: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3887 "configure"
+#line 3963 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3906,7 +3982,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3910: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3986: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3928,7 +4004,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for finite in library m""... $ac_c" 1>&6
-echo "configure:3932: checking for finite in library m" >&5
+echo "configure:4008: checking for finite in library m" >&5
 ac_lib_var=`echo m'_'finite | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3937,7 +4013,7 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="m  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3941 "configure"
+#line 4017 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3948,7 +4024,7 @@ int main() {
 finite()
 ; return 0; }
 EOF
-if { (eval echo configure:3952: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4028: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3990,12 +4066,12 @@ ac_link='${CC-cc} -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_
 for ac_func in isnan
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3994: checking for $ac_func" >&5
+echo "configure:4070: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3999 "configure"
+#line 4075 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4018,7 +4094,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4022: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4098: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4040,7 +4116,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for isnan in library m""... $ac_c" 1>&6
-echo "configure:4044: checking for isnan in library m" >&5
+echo "configure:4120: checking for isnan in library m" >&5
 ac_lib_var=`echo m'_'isnan | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4049,7 +4125,7 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="m  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4053 "configure"
+#line 4129 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4060,7 +4136,7 @@ int main() {
 isnan()
 ; return 0; }
 EOF
-if { (eval echo configure:4064: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4140: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4102,12 +4178,12 @@ ac_link='${CC-cc} -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_
 for ac_func in mkstemp
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4106: checking for $ac_func" >&5
+echo "configure:4182: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4111 "configure"
+#line 4187 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4130,7 +4206,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4134: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4210: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4152,7 +4228,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for mkstemp in library c""... $ac_c" 1>&6
-echo "configure:4156: checking for mkstemp in library c" >&5
+echo "configure:4232: checking for mkstemp in library c" >&5
 ac_lib_var=`echo c'_'mkstemp | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4161,7 +4237,7 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="c  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4165 "configure"
+#line 4241 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4172,7 +4248,7 @@ int main() {
 mkstemp()
 ; return 0; }
 EOF
-if { (eval echo configure:4176: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4252: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4211,19 +4287,19 @@ done
 
 
 echo $ac_n "checking for va_copy""... $ac_c" 1>&6
-echo "configure:4215: checking for va_copy" >&5
+echo "configure:4291: checking for va_copy" >&5
 if eval "test \"`echo '$''{'cctk_cv_have_va_copy'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4220 "configure"
+#line 4296 "configure"
 #include "confdefs.h"
 #include <stdarg.h>
 int main() {
 va_list src, dest; va_copy(dest, src); return 0
 ; return 0; }
 EOF
-if { (eval echo configure:4227: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4303: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "cctk_cv_have_va_copy=yes"
 else
@@ -4250,7 +4326,7 @@ fi
 if test "X$PTHREADS" = 'Xyes'; then
   PTHREAD_LIBS=
   echo $ac_n "checking for main in library c_r""... $ac_c" 1>&6
-echo "configure:4254: checking for main in library c_r" >&5
+echo "configure:4330: checking for main in library c_r" >&5
 ac_lib_var=`echo c_r'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4259,14 +4335,14 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="c_r  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4263 "configure"
+#line 4339 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4270: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4346: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4287,7 +4363,7 @@ else
 fi
 
   echo $ac_n "checking for main in library pthread""... $ac_c" 1>&6
-echo "configure:4291: checking for main in library pthread" >&5
+echo "configure:4367: checking for main in library pthread" >&5
 ac_lib_var=`echo pthread'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4296,14 +4372,14 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="pthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4300 "configure"
+#line 4376 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4307: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4383: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4322,7 +4398,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for main in library pthreads""... $ac_c" 1>&6
-echo "configure:4326: checking for main in library pthreads" >&5
+echo "configure:4402: checking for main in library pthreads" >&5
 ac_lib_var=`echo pthreads'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4331,14 +4407,14 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="pthreads  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4335 "configure"
+#line 4411 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4342: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4418: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4463,7 +4539,10 @@ EOF
 fi
 
 # Float types
-
+echo "Float types"
+echo "x$ac_cv_sizeof_long_double"
+echo "x$ac_cv_sizeof_double"
+echo "x$ac_cv_sizeof_float"
 case "x$ac_cv_sizeof_long_double" in
     'x16')
       CCTK_REAL16='long double' ;;
@@ -4495,7 +4574,7 @@ if test "x$DISABLE_REAL16" != 'xyes' -a "x$DISABLE_REAL16" != 'xno' -a "x$DISABL
     { echo "configure: error: Didn't recognise setting of DISABLE_REAL16=\"$DISABLE_REAL16\"; should be either \"yes\" or \"no\" or \"\" (empty)" 1>&2; exit 1; }
 fi
 
-if test -n "$CCTK_REAL16" -a "x$DISABLE_REAL16" != 'xyes' ; then
+if test -n "$CCTK_REAL16" -a "x$DISABLE_REAL16" != 'xyes' -a -n "$HAVE_FORTRAN_REAL16" ; then
   cat >> confdefs.h <<EOF
 #define CCTK_REAL16 $CCTK_REAL16
 EOF
@@ -4919,7 +4998,7 @@ if test "x$CCTK_NEED_X" = 'xyes' ; then
 # Uses ac_ vars as temps to allow command line to override cache and checks.
 # --without-x overrides everything else, but does not touch the cache.
 echo $ac_n "checking for X""... $ac_c" 1>&6
-echo "configure:4923: checking for X" >&5
+echo "configure:5002: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -4981,12 +5060,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 4985 "configure"
+#line 5064 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4990: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5069: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5055,14 +5134,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5059 "configure"
+#line 5138 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:5066: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5145: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
diff --git a/lib/make/configure.in b/lib/make/configure.in
index 69321abb..1e7edd42 100644
--- a/lib/make/configure.in
+++ b/lib/make/configure.in
@@ -528,6 +528,12 @@ CCTK_CHECK_CXX_RESTRICT
 CCTK_C_BOOL
 CCTK_CXX_BOOL
 
+CCTK_PROG_FORTRAN_REAL16_WORKS
+AC_PROG_CXX_GNU
+if test "$fortran_does_real16" = 'yes'; then
+  AC_DEFINE(HAVE_FORTRAN_REAL16)
+fi
+
 dnl Do we have crypt(3)
 CCTK_CHECK_FUNC(crypt, , CCTK_CHECK_LIB_FUNC(crypt, crypt))
 
@@ -646,7 +652,10 @@ if test -n "$CCTK_INT1" ; then
 fi
 
 # Float types
-
+echo "Float types"
+echo "x$ac_cv_sizeof_long_double"
+echo "x$ac_cv_sizeof_double"
+echo "x$ac_cv_sizeof_float"
 case "x$ac_cv_sizeof_long_double" in
     'x16')
       CCTK_REAL16='long double' ;;
@@ -678,7 +687,7 @@ if test "x$DISABLE_REAL16" != 'xyes' -a "x$DISABLE_REAL16" != 'xno' -a "x$DISABL
     AC_ERROR([Didn't recognise setting of DISABLE_REAL16=\"$DISABLE_REAL16\"; should be either \"yes\" or \"no\" or \"\" (empty)])
 fi
 
-if test -n "$CCTK_REAL16" -a "x$DISABLE_REAL16" != 'xyes' ; then
+if test -n "$CCTK_REAL16" -a "x$DISABLE_REAL16" != 'xyes' -a -n "$HAVE_FORTRAN_REAL16" ; then
   AC_DEFINE_UNQUOTED(CCTK_REAL16, $CCTK_REAL16)
   AC_DEFINE(HAVE_CCTK_REAL16)
 fi