patch 9.0.0834: warning for missing return type

Problem:    Warning for missing return type.
Solution:   Add "int". (San James, closes #11496)
diff --git a/src/auto/configure b/src/auto/configure
index bcb40a7..644daae 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -12420,7 +12420,7 @@
 /* end confdefs.h.  */
 
 #include <signal.h>
-test_sig()
+int test_sig()
 {
     struct sigcontext *scont;
     scont = (struct sigcontext *)0;
diff --git a/src/configure.ac b/src/configure.ac
index e63c685..16ecd10 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -3654,7 +3654,7 @@
 AC_MSG_CHECKING(for struct sigcontext)
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
 #include <signal.h>
-test_sig()
+int test_sig()
 {
     struct sigcontext *scont;
     scont = (struct sigcontext *)0;
diff --git a/src/version.c b/src/version.c
index e852ea1..9a8928c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    834,
+/**/
     833,
 /**/
     832,