Added detection of X library location.

Sets make variables

X_LIB_DIR
X_INC_DIR

Tom


git-svn-id: http://svn.cactuscode.org/flesh/trunk@1377 17b73243-c579-4c4c-a9d2-2d5706c11dac

3 files changed, 370 insertions, 107 deletions

diff --git a/lib/make/configure b/lib/make/configure
index 8c76e7cd..bfd88dd2 100755
--- a/lib/make/configure
+++ b/lib/make/configure
@@ -28,6 +28,8 @@
 ac_help=
 ac_default_prefix=/usr/local
 # Any additions from configure.in:
+ac_help="$ac_help
+  --with-x                use the X Window System"
 
 # Initialize some variables set by options.
 # The variables have the same names as the options, with
@@ -587,7 +589,7 @@ 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:591: checking host system type" >&5
+echo "configure:593: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -608,7 +610,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$host" 1>&6
 
 echo $ac_n "checking target system type""... $ac_c" 1>&6
-echo "configure:612: checking target system type" >&5
+echo "configure:614: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -626,7 +628,7 @@ target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$target" 1>&6
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:630: checking build system type" >&5
+echo "configure:632: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -658,7 +660,7 @@ if test -r $srcdir/known-architectures/$host_os ; then
 fi
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:662: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:664: 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
@@ -689,7 +691,7 @@ fi
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:693: checking for $ac_word" >&5
+echo "configure:695: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -719,7 +721,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:723: checking for $ac_word" >&5
+echo "configure:725: 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
@@ -770,7 +772,7 @@ fi
       # Extract the first word of "cl", so it can be a program name with args.
 set dummy cl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:774: checking for $ac_word" >&5
+echo "configure:776: 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
@@ -802,7 +804,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:806: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:808: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -813,12 +815,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 817 "configure"
+#line 819 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:822: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:824: \"$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
@@ -844,12 +846,12 @@ 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""... $ac_c" 1>&6
-echo "configure:848: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:850: checking whether the C compiler ($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""... $ac_c" 1>&6
-echo "configure:853: checking whether we are using GNU C" >&5
+echo "configure:855: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -858,7 +860,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:862: \"$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:864: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -877,7 +879,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:881: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:883: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -916,7 +918,7 @@ do
 # Extract the first word of "$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:920: checking for $ac_word" >&5
+echo "configure:922: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CXX'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -948,7 +950,7 @@ test -n "$CXX" || CXX="gcc"
 
 
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:952: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
+echo "configure:954: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
 
 ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -959,12 +961,12 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 963 "configure"
+#line 965 "configure"
 #include "confdefs.h"
 
 int main(){return(0);}
 EOF
-if { (eval echo configure:968: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:970: \"$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
@@ -990,12 +992,12 @@ 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""... $ac_c" 1>&6
-echo "configure:994: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:996: checking whether the C++ compiler ($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++""... $ac_c" 1>&6
-echo "configure:999: checking whether we are using GNU C++" >&5
+echo "configure:1001: checking whether we are using GNU C++" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1004,7 +1006,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1008: \"$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:1010: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gxx=yes
 else
   ac_cv_prog_gxx=no
@@ -1023,7 +1025,7 @@ ac_test_CXXFLAGS="${CXXFLAGS+set}"
 ac_save_CXXFLAGS="$CXXFLAGS"
 CXXFLAGS=
 echo $ac_n "checking whether ${CXX-g++} accepts -g""... $ac_c" 1>&6
-echo "configure:1027: checking whether ${CXX-g++} accepts -g" >&5
+echo "configure:1029: checking whether ${CXX-g++} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cxx_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1060,7 +1062,7 @@ if test -z "$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:1064: checking for $ac_word" >&5
+echo "configure:1066: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1096,7 +1098,7 @@ do
 # Extract the first word of "$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:1100: checking for $ac_word" >&5
+echo "configure:1102: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CPP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1140,7 +1142,7 @@ do
 # Extract the first word of "$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:1144: checking for $ac_word" >&5
+echo "configure:1146: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_PERL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1177,7 +1179,7 @@ do
 # Extract the first word of "$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:1181: checking for $ac_word" >&5
+echo "configure:1183: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_F90'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1214,7 +1216,7 @@ do
 # Extract the first word of "$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:1218: checking for $ac_word" >&5
+echo "configure:1220: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_F77'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1251,7 +1253,7 @@ do
 # Extract the first word of "$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:1255: checking for $ac_word" >&5
+echo "configure:1257: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1288,7 +1290,7 @@ do
 # Extract the first word of "$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:1292: checking for $ac_word" >&5
+echo "configure:1294: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_MKDIR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1325,7 +1327,7 @@ do
 # Extract the first word of "$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:1329: checking for $ac_word" >&5
+echo "configure:1331: 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
@@ -1422,7 +1424,7 @@ do
   fi
 done
 
-# Finish the cctk_extradefs.h file
+# Finish the cctk_Extradefs.h file
 cat >> cctk_Extradefs.h <<EOF
 #endif /*_CCTK_EXTRADEFS_H_*/
 EOF
@@ -1452,7 +1454,7 @@ LDFLAGS=
 
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1456: checking how to run the C preprocessor" >&5
+echo "configure:1458: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1467,13 +1469,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1471 "configure"
+#line 1473 "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:1477: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1479: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1484,13 +1486,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1488 "configure"
+#line 1490 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1494: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1496: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1501,13 +1503,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1505 "configure"
+#line 1507 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1511: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1513: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1532,12 +1534,12 @@ fi
 echo "$ac_t""$CPP" 1>&6
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:1536: checking for ANSI C header files" >&5
+echo "configure:1538: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1541 "configure"
+#line 1543 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -1545,7 +1547,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1549: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1551: \"$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*
@@ -1562,7 +1564,7 @@ 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 1566 "configure"
+#line 1568 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -1580,7 +1582,7 @@ 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 1584 "configure"
+#line 1586 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -1601,7 +1603,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 1605 "configure"
+#line 1607 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -1612,7 +1614,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 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
   :
 else
@@ -1638,14 +1640,14 @@ fi
 
 
 echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
-echo "configure:1642: checking whether byte ordering is bigendian" >&5
+echo "configure:1644: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'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 1649 "configure"
+#line 1651 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -1656,11 +1658,11 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:1660: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1662: \"$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 1664 "configure"
+#line 1666 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -1671,7 +1673,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:1675: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1677: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
@@ -1691,7 +1693,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1695 "configure"
+#line 1697 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -1704,7 +1706,7 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-if { (eval echo configure:1708: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1710: \"$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
@@ -1728,12 +1730,12 @@ EOF
 fi
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:1732: checking for working const" >&5
+echo "configure:1734: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1737 "configure"
+#line 1739 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -1782,7 +1784,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:1786: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1788: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -1803,21 +1805,21 @@ EOF
 fi
 
 echo $ac_n "checking for inline""... $ac_c" 1>&6
-echo "configure:1807: checking for inline" >&5
+echo "configure:1809: checking for inline" >&5
 if eval "test \"`echo '$''{'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 1814 "configure"
+#line 1816 "configure"
 #include "confdefs.h"
 
 int main() {
 } $ac_kw foo() {
 ; return 0; }
 EOF
-if { (eval echo configure:1821: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1823: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_inline=$ac_kw; break
 else
@@ -1843,7 +1845,7 @@ EOF
 esac
 
 echo $ac_n "checking for long double""... $ac_c" 1>&6
-echo "configure:1847: checking for long double" >&5
+echo "configure:1849: checking for long double" >&5
 if eval "test \"`echo '$''{'ac_cv_c_long_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1854,7 +1856,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1858 "configure"
+#line 1860 "configure"
 #include "confdefs.h"
 int main() {
 /* The Stardent Vistra knows sizeof(long double), but does not support it.  */
@@ -1862,7 +1864,7 @@ long double foo = 0.0;
 /* On Ultrix 4.3 cc, long double is 4 and double is 8.  */
 exit(sizeof(long double) < sizeof(double)); }
 EOF
-if { (eval echo configure:1866: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1868: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_long_double=yes
 else
@@ -1888,7 +1890,7 @@ fi
 
 # Check for sizes of integer types
 echo $ac_n "checking size of long int""... $ac_c" 1>&6
-echo "configure:1892: checking size of long int" >&5
+echo "configure:1894: checking size of long int" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_long_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1896,7 +1898,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1900 "configure"
+#line 1902 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -1907,7 +1909,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1911: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1913: \"$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
@@ -1927,7 +1929,7 @@ EOF
 
 
 echo $ac_n "checking size of int""... $ac_c" 1>&6
-echo "configure:1931: checking size of int" >&5
+echo "configure:1933: checking size of int" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1935,7 +1937,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1939 "configure"
+#line 1941 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -1946,7 +1948,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1950: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1952: \"$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
@@ -1966,7 +1968,7 @@ EOF
 
 
 echo $ac_n "checking size of short int""... $ac_c" 1>&6
-echo "configure:1970: checking size of short int" >&5
+echo "configure:1972: checking size of short int" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_short_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1974,7 +1976,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1978 "configure"
+#line 1980 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -1985,7 +1987,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1989: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1991: \"$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
@@ -2007,7 +2009,7 @@ EOF
 
 # Check for sizes of floating point types
 echo $ac_n "checking size of long double""... $ac_c" 1>&6
-echo "configure:2011: checking size of long double" >&5
+echo "configure:2013: checking size of long double" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_long_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2015,7 +2017,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 2019 "configure"
+#line 2021 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2026,7 +2028,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2030: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2032: \"$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
@@ -2046,7 +2048,7 @@ EOF
 
 
 echo $ac_n "checking size of double""... $ac_c" 1>&6
-echo "configure:2050: checking size of double" >&5
+echo "configure:2052: checking size of double" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2054,7 +2056,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 2058 "configure"
+#line 2060 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2065,7 +2067,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2069: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2071: \"$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
@@ -2085,7 +2087,7 @@ EOF
 
 
 echo $ac_n "checking size of float""... $ac_c" 1>&6
-echo "configure:2089: checking size of float" >&5
+echo "configure:2091: checking size of float" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_float'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2093,7 +2095,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 2097 "configure"
+#line 2099 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2104,7 +2106,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2108: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2110: \"$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
@@ -2126,7 +2128,7 @@ EOF
 
 # Check for sizes of pointers.  
 echo $ac_n "checking size of char *""... $ac_c" 1>&6
-echo "configure:2130: checking size of char *" >&5
+echo "configure:2132: checking size of char *" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_char_p'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2134,7 +2136,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 2138 "configure"
+#line 2140 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2145,7 +2147,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2149: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2151: \"$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
@@ -2168,7 +2170,7 @@ EOF
 # See if there's a null device, and what it's called
 
 echo $ac_n "checking for the null device""... $ac_c" 1>&6
-echo "configure:2172: checking for the null device" >&5
+echo "configure:2174: checking for the null device" >&5
 if eval "test \"`echo '$''{'cctk_cv_nulldevice'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2197,6 +2199,249 @@ else
 fi
 
 
+# Find the X libraries in case people need them
+
+# If we find X, set shell vars x_includes and x_libraries to the
+# paths, otherwise set no_x=yes.
+# 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""... $ac_c" 1>&6
+echo "configure:2210: checking for X" >&5
+
+# Check whether --with-x or --without-x was given.
+if test "${with_x+set}" = set; then
+  withval="$with_x"
+  :
+fi
+
+# $have_x is `yes', `no', `disabled', or empty when we do not yet know.
+if test "x$with_x" = xno; then
+  # The user explicitly disabled X.
+  have_x=disabled
+else
+  if test "x$x_includes" != xNONE && test "x$x_libraries" != xNONE; then
+    # Both variables are already set.
+    have_x=yes
+  else
+if eval "test \"`echo '$''{'ac_cv_have_x'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  # One or both of the vars are not set, and there is no cached value.
+ac_x_includes=NO ac_x_libraries=NO
+rm -fr conftestdir
+if mkdir conftestdir; then
+  cd conftestdir
+  # Make sure to not put "make" in the Imakefile rules, since we grep it out.
+  cat > Imakefile <<'EOF'
+acfindx:
+	@echo 'ac_im_incroot="${INCROOT}"; ac_im_usrlibdir="${USRLIBDIR}"; ac_im_libdir="${LIBDIR}"'
+EOF
+  if (xmkmf) >/dev/null 2>/dev/null && test -f Makefile; then
+    # GNU make sometimes prints "make[1]: Entering...", which would confuse us.
+    eval `${MAKE-make} acfindx 2>/dev/null | grep -v make`
+    # Open Windows xmkmf reportedly sets LIBDIR instead of USRLIBDIR.
+    for ac_extension in a so sl; do
+      if test ! -f $ac_im_usrlibdir/libX11.$ac_extension &&
+        test -f $ac_im_libdir/libX11.$ac_extension; then
+        ac_im_usrlibdir=$ac_im_libdir; break
+      fi
+    done
+    # Screen out bogus values from the imake configuration.  They are
+    # bogus both because they are the default anyway, and because
+    # using them would break gcc on systems where it needs fixed includes.
+    case "$ac_im_incroot" in
+	/usr/include) ;;
+	*) test -f "$ac_im_incroot/X11/Xos.h" && ac_x_includes="$ac_im_incroot" ;;
+    esac
+    case "$ac_im_usrlibdir" in
+	/usr/lib | /lib) ;;
+	*) test -d "$ac_im_usrlibdir" && ac_x_libraries="$ac_im_usrlibdir" ;;
+    esac
+  fi
+  cd ..
+  rm -fr conftestdir
+fi
+
+if test "$ac_x_includes" = NO; then
+  # Guess where to find include files, by looking for this one X11 .h file.
+  test -z "$x_direct_test_include" && x_direct_test_include=X11/Intrinsic.h
+
+  # First, try using that file with no special directory specified.
+cat > conftest.$ac_ext <<EOF
+#line 2272 "configure"
+#include "confdefs.h"
+#include <$x_direct_test_include>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:2277: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  # We can compile using X headers with no special include directory.
+ac_x_includes=
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  # Look for the header file in a standard set of common directories.
+# Check X11 before X11Rn because it is often a symlink to the current release.
+  for ac_dir in               \
+    /usr/X11/include          \
+    /usr/X11R6/include        \
+    /usr/X11R5/include        \
+    /usr/X11R4/include        \
+                              \
+    /usr/include/X11          \
+    /usr/include/X11R6        \
+    /usr/include/X11R5        \
+    /usr/include/X11R4        \
+                              \
+    /usr/local/X11/include    \
+    /usr/local/X11R6/include  \
+    /usr/local/X11R5/include  \
+    /usr/local/X11R4/include  \
+                              \
+    /usr/local/include/X11    \
+    /usr/local/include/X11R6  \
+    /usr/local/include/X11R5  \
+    /usr/local/include/X11R4  \
+                              \
+    /usr/X386/include         \
+    /usr/x386/include         \
+    /usr/XFree86/include/X11  \
+                              \
+    /usr/include              \
+    /usr/local/include        \
+    /usr/unsupported/include  \
+    /usr/athena/include       \
+    /usr/local/x11r5/include  \
+    /usr/lpp/Xamples/include  \
+                              \
+    /usr/openwin/include      \
+    /usr/openwin/share/include \
+    ; \
+  do
+    if test -r "$ac_dir/$x_direct_test_include"; then
+      ac_x_includes=$ac_dir
+      break
+    fi
+  done
+fi
+rm -f conftest*
+fi # $ac_x_includes = NO
+
+if test "$ac_x_libraries" = NO; then
+  # Check for the libraries.
+
+  test -z "$x_direct_test_library" && x_direct_test_library=Xt
+  test -z "$x_direct_test_function" && x_direct_test_function=XtMalloc
+
+  # See if we find them without any special options.
+  # Don't add to $LIBS permanently.
+  ac_save_LIBS="$LIBS"
+  LIBS="-l$x_direct_test_library $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2346 "configure"
+#include "confdefs.h"
+
+int main() {
+${x_direct_test_function}()
+; return 0; }
+EOF
+if { (eval echo configure:2353: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  LIBS="$ac_save_LIBS"
+# We can link X programs with no special library path.
+ac_x_libraries=
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  LIBS="$ac_save_LIBS"
+# First see if replacing the include by lib works.
+# Check X11 before X11Rn because it is often a symlink to the current release.
+for ac_dir in `echo "$ac_x_includes" | sed s/include/lib/` \
+    /usr/X11/lib          \
+    /usr/X11R6/lib        \
+    /usr/X11R5/lib        \
+    /usr/X11R4/lib        \
+                          \
+    /usr/lib/X11          \
+    /usr/lib/X11R6        \
+    /usr/lib/X11R5        \
+    /usr/lib/X11R4        \
+                          \
+    /usr/local/X11/lib    \
+    /usr/local/X11R6/lib  \
+    /usr/local/X11R5/lib  \
+    /usr/local/X11R4/lib  \
+                          \
+    /usr/local/lib/X11    \
+    /usr/local/lib/X11R6  \
+    /usr/local/lib/X11R5  \
+    /usr/local/lib/X11R4  \
+                          \
+    /usr/X386/lib         \
+    /usr/x386/lib         \
+    /usr/XFree86/lib/X11  \
+                          \
+    /usr/lib              \
+    /usr/local/lib        \
+    /usr/unsupported/lib  \
+    /usr/athena/lib       \
+    /usr/local/x11r5/lib  \
+    /usr/lpp/Xamples/lib  \
+    /lib/usr/lib/X11	  \
+                          \
+    /usr/openwin/lib      \
+    /usr/openwin/share/lib \
+    ; \
+do
+  for ac_extension in a so sl; do
+    if test -r $ac_dir/lib${x_direct_test_library}.$ac_extension; then
+      ac_x_libraries=$ac_dir
+      break 2
+    fi
+  done
+done
+fi
+rm -f conftest*
+fi # $ac_x_libraries = NO
+
+if test "$ac_x_includes" = NO || test "$ac_x_libraries" = NO; then
+  # Didn't find X anywhere.  Cache the known absence of X.
+  ac_cv_have_x="have_x=no"
+else
+  # Record where we found X for the cache.
+  ac_cv_have_x="have_x=yes \
+	        ac_x_includes=$ac_x_includes ac_x_libraries=$ac_x_libraries"
+fi
+fi
+  fi
+  eval "$ac_cv_have_x"
+fi # $with_x != no
+
+if test "$have_x" != yes; then
+  echo "$ac_t""$have_x" 1>&6
+  no_x=yes
+else
+  # If each of the values was on the command line, it overrides each guess.
+  test "x$x_includes" = xNONE && x_includes=$ac_x_includes
+  test "x$x_libraries" = xNONE && x_libraries=$ac_x_libraries
+  # Update the cache value to reflect the command line values.
+  ac_cv_have_x="have_x=yes \
+		ac_x_includes=$x_includes ac_x_libraries=$x_libraries"
+  echo "$ac_t""libraries $x_libraries, headers $x_includes" 1>&6
+fi
+
+
+
+
+
+X_LIB_DIR="$x_libraries"
+X_INC_DIR="$x_includes"
+
 # Various flags
 
 
@@ -2213,12 +2458,12 @@ fi
 for ac_func in mkdir
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2217: checking for $ac_func" >&5
+echo "configure:2462: 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 2222 "configure"
+#line 2467 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2241,7 +2486,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2245: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2490: \"$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
@@ -2268,12 +2513,12 @@ done
 
 
 echo $ac_n "checking for availability of gettimeofday timing""... $ac_c" 1>&6
-echo "configure:2272: checking for availability of gettimeofday timing" >&5
+echo "configure:2517: checking for availability of gettimeofday timing" >&5
 if eval "test \"`echo '$''{'cctk_cv_time_gettimeofday'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2277 "configure"
+#line 2522 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -2281,7 +2526,7 @@ gettimeofday();
  return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2285: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2530: \"$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
@@ -2303,12 +2548,12 @@ else
 fi
 if eval "test \"`echo '$cctk_cv_time_gettimeofday'`\" = yes"; then
 echo $ac_n "checking if gettimeofday needs timezone""... $ac_c" 1>&6
-echo "configure:2307: checking if gettimeofday needs timezone" >&5
+echo "configure:2552: checking if gettimeofday needs timezone" >&5
 if eval "test \"`echo '$''{'cctk_cv_time_gettimeofday_timezone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2312 "configure"
+#line 2557 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/time.h>
@@ -2321,7 +2566,7 @@ struct timeval tp;
  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:2570: \"$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
@@ -2344,12 +2589,12 @@ fi
 fi
 
 echo $ac_n "checking for availability of getrusage timing""... $ac_c" 1>&6
-echo "configure:2348: checking for availability of getrusage timing" >&5
+echo "configure:2593: checking for availability of getrusage timing" >&5
 if eval "test \"`echo '$''{'cctk_cv_time_getrusage'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2353 "configure"
+#line 2598 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/time.h>
@@ -2362,7 +2607,7 @@ struct rusage ru;
  return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2366: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2611: \"$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
@@ -2384,12 +2629,12 @@ else
 fi
 
 echo $ac_n "checking for availability of _ftime timing""... $ac_c" 1>&6
-echo "configure:2388: checking for availability of _ftime timing" >&5
+echo "configure:2633: checking for availability of _ftime timing" >&5
 if eval "test \"`echo '$''{'cctk_cv_time_ftime'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2393 "configure"
+#line 2638 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <time.h>
@@ -2402,7 +2647,7 @@ int main() {
   return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2406: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2651: \"$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
@@ -2429,19 +2674,19 @@ 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:2433: checking for $cctk_hdr" >&5
+echo "configure:2678: 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 2438 "configure"
+#line 2683 "configure"
 #include "confdefs.h"
 #include <$cctk_hdr>
 int main() {
 return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2445: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2690: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2468,19 +2713,19 @@ 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:2472: checking for $cctk_hdr" >&5
+echo "configure:2717: 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 2722 "configure"
 #include "confdefs.h"
 #include <$cctk_hdr>
 int main() {
 return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2484: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2729: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -2504,12 +2749,12 @@ fi
 done
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:2508: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:2753: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2513 "configure"
+#line 2758 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -2518,7 +2763,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:2522: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2767: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -2998,6 +3243,8 @@ s%@F77@%$F77%g
 s%@AR@%$AR%g
 s%@MKDIR@%$MKDIR%g
 s%@LD@%$LD%g
+s%@X_LIB_DIR@%$X_LIB_DIR%g
+s%@X_INC_DIR@%$X_INC_DIR%g
 s%@ARFLAGS@%$ARFLAGS%g
 s%@F90FLAGS@%$F90FLAGS%g
 s%@F77FLAGS@%$F77FLAGS%g
diff --git a/lib/make/configure.in b/lib/make/configure.in
index 12e701bc..b1a35397 100644
--- a/lib/make/configure.in
+++ b/lib/make/configure.in
@@ -198,6 +198,16 @@ AC_CHECK_SIZEOF(char *)
 
 CCTK_FIND_NULLDEVICE
 
+# Find the X libraries in case people need them
+
+AC_PATH_X
+
+AC_SUBST(X_LIB_DIR)
+AC_SUBST(X_INC_DIR)
+
+X_LIB_DIR="$x_libraries"
+X_INC_DIR="$x_includes"
+
 # Various flags
 
 AC_SUBST(ARFLAGS)
diff --git a/lib/make/make.config.defn.in b/lib/make/make.config.defn.in
index d887bfd7..afb5f1a9 100644
--- a/lib/make/make.config.defn.in
+++ b/lib/make/make.config.defn.in
@@ -99,6 +99,12 @@ OS     = @host_os@
 CPU    = @host_cpu@
 VENDOR = @host_vendor@
 
+# X stuff
+
+X_LIB_DIR  = @X_LIB_DIR@
+X_INC_DIR  = @X_INC_DIR@
+
+
 # Where the CCTK puts things
 PACKAGE_DIR = $(CCTK_HOME)/@PACKAGE_DIR@
 BUILD_DIR   = $(TOP)/@BUILD_DIR@