commit 4286faefa6fe9ee83e30bacd4e4c498981ac92b7
Author: jorton <jorton@13f79535-47bb-0310-9956-ffa450edef68>
Date:   Fri Feb 3 16:36:17 2023 +0000

    Merge r1906347 from trunk:
    
    Fix configure for compilers which don't accept implicit
    int (no longer part of C since C99).
    
    Submitted by: Florian Weimer <fweimer redhat.com>
    PR: 66396
    
    
    git-svn-id: https://svn.apache.org/repos/asf/apr/apr-util/branches/1.6.x@1907246 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/build/dbm.m4 b/build/dbm.m4
index 57bd131..e8c51b5 100644
--- a/build/dbm.m4
+++ b/build/dbm.m4
@@ -235,7 +235,7 @@ AC_DEFUN([APU_TRY_BERKELEY_DB],
 #include <stdlib.h>
 #include <stdio.h>
 #include <$apu_try_berkeley_db_header>
-main ()
+int main (void)
 {
   int major, minor, patch;