Check for availability of <dirent.h>.

git-svn-id: http://svn.cactuscode.org/flesh/trunk@2574 17b73243-c579-4c4c-a9d2-2d5706c11dac

3 files changed, 110 insertions, 68 deletions

diff --git a/lib/make/cctk_Config.h.in b/lib/make/cctk_Config.h.in
index a8a64a71..8d037386 100644
--- a/lib/make/cctk_Config.h.in
+++ b/lib/make/cctk_Config.h.in
@@ -100,6 +100,7 @@
 #undef HAVE_ARPA_INET_H
 #undef HAVE_WINSOCK2_H
 #undef HAVE_CRYPT_H
+#undef HAVE_DIRENT_H
 
 #undef TIME_WITH_SYS_TIME
 
diff --git a/lib/make/configure b/lib/make/configure
index f8a52b69..eabccf2f 100755
--- a/lib/make/configure
+++ b/lib/make/configure
@@ -2971,13 +2971,53 @@ else
 fi
 done
 
+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:2979: 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 2984 "configure"
+#include "confdefs.h"
+ 
+#include <$cctk_hdr>
+int main() {
+ 
+; return 0; }
+EOF
+if { (eval echo configure:2992: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  eval "cctk_cv_header_$cctk_safe=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "cctk_cv_header_$cctk_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$cctk_cv_header_'$cctk_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    cctk_tr_hdr=HAVE_`echo $cctk_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
+  cat >> confdefs.h <<EOF
+#define $cctk_tr_hdr 1
+EOF
+ 
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+
 echo $ac_n "checking for regex.h""... $ac_c" 1>&6
-echo "configure:2976: checking for regex.h" >&5
+echo "configure:3016: checking for regex.h" >&5
 if eval "test \"`echo '$''{'cctk_cv_header_regex_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2981 "configure"
+#line 3021 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <regex.h>
@@ -2985,7 +3025,7 @@ int main() {
 return 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2989: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3029: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_regex_h=yes"
 else
@@ -3010,12 +3050,12 @@ for cctk_hdr in sys/socket.h
 do
 cctk_safe=`echo "$cctk_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $cctk_hdr""... $ac_c" 1>&6
-echo "configure:3014: checking for $cctk_hdr" >&5
+echo "configure:3054: 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 3019 "configure"
+#line 3059 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H 
 #include <sys/types.h>
@@ -3025,7 +3065,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3029: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3069: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3052,12 +3092,12 @@ 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:3056: checking for $cctk_hdr" >&5
+echo "configure:3096: 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 3061 "configure"
+#line 3101 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H 
 #include <sys/types.h>
@@ -3067,7 +3107,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3071: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3111: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3094,12 +3134,12 @@ 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:3098: checking for $cctk_hdr" >&5
+echo "configure:3138: 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 3103 "configure"
+#line 3143 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H 
 #include <sys/types.h>
@@ -3109,7 +3149,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3113: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3153: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3136,12 +3176,12 @@ 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:3140: checking for $cctk_hdr" >&5
+echo "configure:3180: 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 3145 "configure"
+#line 3185 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H 
 #include <sys/types.h>
@@ -3151,7 +3191,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3155: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3195: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3178,12 +3218,12 @@ 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:3182: checking for $cctk_hdr" >&5
+echo "configure:3222: 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 3187 "configure"
+#line 3227 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -3191,7 +3231,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3195: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3235: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3218,12 +3258,12 @@ 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:3222: checking for $cctk_hdr" >&5
+echo "configure:3262: 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 3227 "configure"
+#line 3267 "configure"
 #include "confdefs.h"
 #ifdef HAVE_UNISTD_H 
 #include <unistd.h>
@@ -3233,7 +3273,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3237: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3277: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3258,12 +3298,12 @@ done
 
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:3262: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:3302: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3267 "configure"
+#line 3307 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -3272,7 +3312,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:3276: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3316: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -3297,12 +3337,12 @@ fi
 
 # Check if we have socklen_t available 
 echo $ac_n "checking if socklen_t is defined""... $ac_c" 1>&6
-echo "configure:3301: checking if socklen_t is defined" >&5
+echo "configure:3341: checking if socklen_t is defined" >&5
 if eval "test \"`echo '$''{'cctk_cv_have_socklen_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3306 "configure"
+#line 3346 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <stdlib.h>
@@ -3322,7 +3362,7 @@ int main() {
 socklen_t foo; return 0
 ; return 0; }
 EOF
-if { (eval echo configure:3326: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3366: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_have_socklen_t=yes"
 else
@@ -3347,12 +3387,12 @@ fi
 
 # Check if someone has defined SOCKET 
 echo $ac_n "checking if SOCKET is defined""... $ac_c" 1>&6
-echo "configure:3351: checking if SOCKET is defined" >&5
+echo "configure:3391: checking if SOCKET is defined" >&5
 if eval "test \"`echo '$''{'cctk_cv_have_SOCKET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3356 "configure"
+#line 3396 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <stdlib.h>
@@ -3372,7 +3412,7 @@ int main() {
 SOCKET foo; return 0
 ; return 0; }
 EOF
-if { (eval echo configure:3376: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3416: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_have_SOCKET=yes"
 else
@@ -3397,19 +3437,19 @@ fi
 
 # Check if we have __int64 
 echo $ac_n "checking if __int64 is defined""... $ac_c" 1>&6
-echo "configure:3401: checking if __int64 is defined" >&5
+echo "configure:3441: checking if __int64 is defined" >&5
 if eval "test \"`echo '$''{'cctk_cv_have___int64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3406 "configure"
+#line 3446 "configure"
 #include "confdefs.h"
 
 int main() {
 __int64 foo; return 0
 ; return 0; }
 EOF
-if { (eval echo configure:3413: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3453: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_have___int64=yes"
 else
@@ -3444,12 +3484,12 @@ cross_compiling=$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:3448: checking for $cctk_hdr" >&5
+echo "configure:3488: 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 3453 "configure"
+#line 3493 "configure"
 #include "confdefs.h"
  
 #include <$cctk_hdr>
@@ -3457,7 +3497,7 @@ int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:3461: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3501: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "cctk_cv_header_$cctk_safe=yes"
 else
@@ -3497,14 +3537,14 @@ 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 3501 "configure"
+#line 3541 "configure"
 #include "confdefs.h"
 
 int main() {
 bool foo;
 ; return 0; }
 EOF
-if { (eval echo configure:3508: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3548: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_BOOL 1
@@ -3530,12 +3570,12 @@ ac_link='${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:3534: checking for $ac_func" >&5
+echo "configure:3574: 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 3539 "configure"
+#line 3579 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3558,7 +3598,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3562: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3602: \"$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
@@ -3603,12 +3643,12 @@ 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""... $ac_c" 1>&6
-echo "configure:3607: checking for crypt" >&5
+echo "configure:3647: checking for crypt" >&5
 if eval "test \"`echo '$''{'ac_cv_func_crypt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3612 "configure"
+#line 3652 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char crypt(); below.  */
@@ -3631,7 +3671,7 @@ crypt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3635: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3675: \"$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
@@ -3649,7 +3689,7 @@ 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""... $ac_c" 1>&6
-echo "configure:3653: checking for crypt in library crypt" >&5
+echo "configure:3693: checking for crypt in library crypt" >&5
 ac_lib_var=`echo crypt'_'crypt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3658,7 +3698,7 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="crypt  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3662 "configure"
+#line 3702 "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
@@ -3669,7 +3709,7 @@ int main() {
 crypt()
 ; return 0; }
 EOF
-if { (eval echo configure:3673: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3713: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3711,12 +3751,12 @@ ac_link='${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:3715: checking for $ac_func" >&5
+echo "configure:3755: 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 3720 "configure"
+#line 3760 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3739,7 +3779,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3743: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3783: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3761,7 +3801,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for finite in library m""... $ac_c" 1>&6
-echo "configure:3765: checking for finite in library m" >&5
+echo "configure:3805: checking for finite in library m" >&5
 ac_lib_var=`echo m'_'finite | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3770,7 +3810,7 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="m  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3774 "configure"
+#line 3814 "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
@@ -3781,7 +3821,7 @@ int main() {
 finite()
 ; return 0; }
 EOF
-if { (eval echo configure:3785: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3825: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3824,12 +3864,12 @@ ac_link='${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:3828: checking for $ac_func" >&5
+echo "configure:3868: 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 3833 "configure"
+#line 3873 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3852,7 +3892,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3856: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3896: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3874,7 +3914,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for isnan in library m""... $ac_c" 1>&6
-echo "configure:3878: checking for isnan in library m" >&5
+echo "configure:3918: checking for isnan in library m" >&5
 ac_lib_var=`echo m'_'isnan | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3883,7 +3923,7 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="m  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3887 "configure"
+#line 3927 "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
@@ -3894,7 +3934,7 @@ int main() {
 isnan()
 ; return 0; }
 EOF
-if { (eval echo configure:3898: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3938: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3936,7 +3976,7 @@ done
 if test "X$PTHREADS" = "Xyes"; then
   PTHREAD_LIBS=
   echo $ac_n "checking for main in library c_r""... $ac_c" 1>&6
-echo "configure:3940: checking for main in library c_r" >&5
+echo "configure:3980: checking for main in library c_r" >&5
 ac_lib_var=`echo c_r'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3945,14 +3985,14 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="c_r  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3949 "configure"
+#line 3989 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:3956: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3996: \"$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
@@ -3973,7 +4013,7 @@ else
 fi
 
   echo $ac_n "checking for main in library pthread""... $ac_c" 1>&6
-echo "configure:3977: checking for main in library pthread" >&5
+echo "configure:4017: checking for main in library pthread" >&5
 ac_lib_var=`echo pthread'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3982,14 +4022,14 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="pthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3986 "configure"
+#line 4026 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:3993: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4033: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4008,7 +4048,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for main in library pthreads""... $ac_c" 1>&6
-echo "configure:4012: checking for main in library pthreads" >&5
+echo "configure:4052: checking for main in library pthreads" >&5
 ac_lib_var=`echo pthreads'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4017,14 +4057,14 @@ else
 ac_save_LIBS="$LIBS"
 LIBS="pthreads  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4021 "configure"
+#line 4061 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4028: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4068: \"$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
diff --git a/lib/make/configure.in b/lib/make/configure.in
index 07377756..43295b2e 100644
--- a/lib/make/configure.in
+++ b/lib/make/configure.in
@@ -368,6 +368,7 @@ CCTK_CHECK_HEADERS(string.h)
 CCTK_CHECK_HEADERS(assert.h)
 CCTK_CHECK_HEADERS(sys/stat.h)
 CCTK_CHECK_HEADERS(getopt.h)
+CCTK_CHECK_HEADERS(dirent.h)
 CCTK_HEADER_REGEX
 CCTK_CHECK_HEADERS(sys/socket.h,[#ifdef HAVE_SYS_TYPES_H 
 #include <sys/types.h>