File festival-configure-c99.patch of Package festival

diff -urp festival.orig/configure festival/configure
--- festival.orig/configure	2017-09-04 10:54:08.000000000 -0500
+++ festival/configure	2024-08-22 10:00:47.633011215 -0500
@@ -760,7 +760,7 @@ cat > conftest.$ac_ext << EOF
 #line 761 "configure"
 #include "confdefs.h"
 
-main(){return(0);}
+int main(){return(0);}
 EOF
 if { (eval echo configure:766: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
@@ -980,7 +980,7 @@ else
   cat > conftest.$ac_ext <<EOF
 #line 982 "configure"
 #include "confdefs.h"
-main () {
+int main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
   union
   {