diff --git a/src/configure b/src/configure
index a21822da3581078bf1bb045cab79996e65a23e84..b81240d7770ad6502f8c755d49aeeffb8aabb65a 100755
--- a/src/configure
+++ b/src/configure
@@ -3103,23 +3103,24 @@ fi
 
 if eval "test \"`echo '$ac_cv_func_'strdup`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-  STRDUP='../../utils/strdup.o' cat >> confdefs.h <<\EOF
+  cat >> confdefs.h <<\EOF
 #define HAVE_STRDUP 1
 EOF
 
 else
   echo "$ac_t""no" 1>&6
+STRDUP='../../utils/strdup.o'
 fi
 
 
 
 echo $ac_n "checking for cbrt""... $ac_c" 1>&6
-echo "configure:3118: checking for cbrt" >&5
+echo "configure:3119: checking for cbrt" >&5
 if eval "test \"`echo '$''{'ac_cv_func_cbrt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3123 "configure"
+#line 3124 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char cbrt(); below.  */
@@ -3142,7 +3143,7 @@ cbrt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3146: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3147: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_cbrt=yes"
 else
@@ -3163,7 +3164,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for cbrt in -lm""... $ac_c" 1>&6
-echo "configure:3167: checking for cbrt in -lm" >&5
+echo "configure:3168: checking for cbrt in -lm" >&5
 ac_lib_var=`echo m'_'cbrt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3171,7 +3172,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3175 "configure"
+#line 3176 "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
@@ -3182,7 +3183,7 @@ int main() {
 cbrt()
 ; return 0; }
 EOF
-if { (eval echo configure:3186: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3187: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3208,12 +3209,12 @@ fi
 fi
 
 echo $ac_n "checking for rint""... $ac_c" 1>&6
-echo "configure:3212: checking for rint" >&5
+echo "configure:3213: checking for rint" >&5
 if eval "test \"`echo '$''{'ac_cv_func_rint'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3217 "configure"
+#line 3218 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char rint(); below.  */
@@ -3236,7 +3237,7 @@ rint();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3240: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3241: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_rint=yes"
 else
@@ -3257,7 +3258,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for rint in -lm""... $ac_c" 1>&6
-echo "configure:3261: checking for rint in -lm" >&5
+echo "configure:3262: checking for rint in -lm" >&5
 ac_lib_var=`echo m'_'rint | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3265,7 +3266,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3269 "configure"
+#line 3270 "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
@@ -3276,7 +3277,7 @@ int main() {
 rint()
 ; return 0; }
 EOF
-if { (eval echo configure:3280: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3281: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3461,8 +3462,8 @@ s%@xargs@%$xargs%g
 s%@ipcs@%$ipcs%g
 s%@ipcrm@%$ipcrm%g
 s%@LIBOBJS@%$LIBOBJS%g
-s%@INET_ATON@%$INET_ATON%g
 s%@STRDUP@%$STRDUP%g
+s%@INET_ATON@%$INET_ATON%g
 
 CEOF
 EOF
diff --git a/src/configure.in b/src/configure.in
index 2ffae4339c2d82c0b9299540f756a8f260b60993..272223075881deb5b88746072c05fb13b3daa703 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -160,9 +160,9 @@ AC_FUNC_VPRINTF
 AC_CHECK_FUNCS(isinf tzset getrusage vfork memmove sigsetjmp kill sysconf)
 AC_CHECK_FUNCS(sigprocmask waitpid setsid)
 AC_CHECK_FUNC(inet_aton, AC_DEFINE(HAVE_INET_ATON), INET_ATON='inet_aton.o')
-AC_CHECK_FUNC(strdup, [STRDUP='../../utils/strdup.o' AC_DEFINE(HAVE_STRDUP)])
-AC_SUBST(INET_ATON)
+AC_CHECK_FUNC(strdup, AC_DEFINE(HAVE_STRDUP), STRDUP='../../utils/strdup.o')
 AC_SUBST(STRDUP)
+AC_SUBST(INET_ATON)
 AC_CHECK_FUNC(cbrt, AC_DEFINE(HAVE_CBRT), AC_CHECK_LIB(m, cbrt, AC_DEFINE(HAVE_CBRT)))
 AC_CHECK_FUNC(rint, AC_DEFINE(HAVE_RINT), AC_CHECK_LIB(m, rint, AC_DEFINE(HAVE_RINT)))