Index: configure
--- configure.orig
+++ configure
@@ -634,7 +634,7 @@ else
 cat > conftest.$ac_ext <<EOF
 #line 636 "configure"
 #include "confdefs.h"
-main(){return(0);}
+int main(void){return(0);}
 EOF
 eval $ac_link
 if test -s conftest && (./conftest; exit) 2>/dev/null; then
@@ -660,7 +660,7 @@ cat > conftest.$ac_ext <<EOF
 #line 661 "configure"
 #include "confdefs.h"
 #include <stdio.h>
-main()
+int main(void)
 {
   FILE *f=fopen("conftestval", "w");
   if (!f) exit(1);
@@ -694,7 +694,7 @@ cat > conftest.$ac_ext <<EOF
 #line 695 "configure"
 #include "confdefs.h"
 #include <stdio.h>
-main()
+int main(void)
 {
   FILE *f=fopen("conftestval", "w");
   if (!f) exit(1);
@@ -728,7 +728,7 @@ cat > conftest.$ac_ext <<EOF
 #line 729 "configure"
 #include "confdefs.h"
 #include <stdio.h>
-main()
+int main(void)
 {
   FILE *f=fopen("conftestval", "w");
   if (!f) exit(1);
@@ -762,7 +762,7 @@ cat > conftest.$ac_ext <<EOF
 #line 763 "configure"
 #include "confdefs.h"
 #include <stdio.h>
-main()
+int main(void)
 {
   FILE *f=fopen("conftestval", "w");
   if (!f) exit(1);
