Add in appropriate checks for inet_aton, and modifications to backend/port/Makefile

to include inet_aton.c if required

src/configure

@@ -2925,13 +2925,66 @@ else
 fi
 done
 
+echo $ac_n "checking for inet_aton""... $ac_c" 1>&6
+echo "configure:2930: checking for inet_aton" >&5
+if eval "test \"`echo '$''{'ac_cv_func_inet_aton'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2935 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char inet_aton(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char inet_aton();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_inet_aton) || defined (__stub___inet_aton)
+choke me
+#else
+inet_aton();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:2958: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  rm -rf conftest*
+  eval "ac_cv_func_inet_aton=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_inet_aton=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'inet_aton`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  cat >> confdefs.h <<\EOF
+#define HAVE_INET_ATON 1
+EOF
+
+else
+  echo "$ac_t""no" 1>&6
+INET_ATON='inet_aton.o'
+fi
+
+
 echo $ac_n "checking for cbrt""... $ac_c" 1>&6
-echo "configure:2930: checking for cbrt" >&5
+echo "configure:2983: checking for cbrt" >&5
 if eval "test \"`echo '$''{'ac_cv_func_cbrt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2935 "configure"
+#line 2988 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char cbrt(); below.  */
@@ -2954,7 +3007,7 @@ cbrt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2958: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3011: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_cbrt=yes"
 else
@@ -2975,7 +3028,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for cbrt in -lm""... $ac_c" 1>&6
-echo "configure:2979: checking for cbrt in -lm" >&5
+echo "configure:3032: checking for cbrt in -lm" >&5
 ac_lib_var=`echo m'_'cbrt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2983,7 +3036,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2987 "configure"
+#line 3040 "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
@@ -2994,7 +3047,7 @@ int main() {
 cbrt()
 ; return 0; }
 EOF
-if { (eval echo configure:2998: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3051: \"$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
@@ -3020,12 +3073,12 @@ fi
 fi
 
 echo $ac_n "checking for rint""... $ac_c" 1>&6
-echo "configure:3024: checking for rint" >&5
+echo "configure:3077: checking for rint" >&5
 if eval "test \"`echo '$''{'ac_cv_func_rint'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3029 "configure"
+#line 3082 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char rint(); below.  */
@@ -3048,7 +3101,7 @@ rint();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3052: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3105: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_rint=yes"
 else
@@ -3069,7 +3122,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for rint in -lm""... $ac_c" 1>&6
-echo "configure:3073: checking for rint in -lm" >&5
+echo "configure:3126: checking for rint in -lm" >&5
 ac_lib_var=`echo m'_'rint | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3077,7 +3130,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3081 "configure"
+#line 3134 "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
@@ -3088,7 +3141,7 @@ int main() {
 rint()
 ; return 0; }
 EOF
-if { (eval echo configure:3092: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3145: \"$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
@@ -3214,7 +3267,7 @@ done
 
 ac_given_srcdir=$srcdir
 
-trap 'rm -fr `echo "GNUmakefile Makefile.global include/config.h" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
+trap 'rm -fr `echo "GNUmakefile Makefile.global backend/port/Makefile include/config.h" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
 EOF
 cat >> $CONFIG_STATUS <<EOF
 
@@ -3273,6 +3326,7 @@ s%@xargs@%$xargs%g
 s%@ipcs@%$ipcs%g
 s%@ipcrm@%$ipcrm%g
 s%@LIBOBJS@%$LIBOBJS%g
+s%@INET_ATON@%$INET_ATON%g
 
 CEOF
 EOF
@@ -3314,7 +3368,7 @@ EOF
 
 cat >> $CONFIG_STATUS <<EOF
 
-CONFIG_FILES=\${CONFIG_FILES-"GNUmakefile Makefile.global"}
+CONFIG_FILES=\${CONFIG_FILES-"GNUmakefile Makefile.global backend/port/Makefile"}
 EOF
 cat >> $CONFIG_STATUS <<\EOF
 for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then

src/configure.in

@@ -149,7 +149,9 @@ AC_FUNC_MEMCMP
 AC_TYPE_SIGNAL
 AC_FUNC_VPRINTF
 AC_CHECK_FUNCS(isinf tzset getrusage vfork memmove sigsetjmp kill sysconf)
+AC_CHECK_FUNC(inet_aton, AC_DEFINE(HAVE_INET_ATON), INET_ATON='inet_aton.o')
+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)))
 
-AC_OUTPUT(GNUmakefile Makefile.global)
+AC_OUTPUT(GNUmakefile Makefile.global backend/port/Makefile)

src/include/config.h.in

@@ -44,6 +44,9 @@
 /* Set to 1 if you have cbrt() */
 #undef HAVE_CBRT
 
+/* Set to 1 if you have cbrt() */
+#undef HAVE_INET_ATON
+
 /* Set to 1 if you have rint() */
 #undef HAVE_RINT