https://sourceforge.net/p/xbae/patches/3/

diff --git a/acinclude.m4 b/acinclude.m4
index 36b4569680ea8531..0bda82ef7480beaf 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -334,7 +334,7 @@ Display *display=NULL;
 short   major_version, minor_version;
 Status rc;
 rc=XpQueryVersion(display, &major_version, &minor_version);
-exit(0);
+return 0;
 }
 ],
 lt_cv_libxp=yes,
diff --git a/configure b/configure
index f43d920c33b055ff..5e82cda106a450e8 100755
--- a/configure
+++ b/configure
@@ -2937,7 +2937,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   for ac_declaration in \
-   '' \
+   '#include <stdlib.h>' \
    'extern "C" void std::exit (int) throw (); using std::exit;' \
    'extern "C" void std::exit (int); using std::exit;' \
    'extern "C" void exit (int) throw ();' \
@@ -4120,7 +4120,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   for ac_declaration in \
-   '' \
+   '#include <stdlib.h>' \
    'extern "C" void std::exit (int) throw (); using std::exit;' \
    'extern "C" void std::exit (int); using std::exit;' \
    'extern "C" void exit (int) throw ();' \
@@ -4477,8 +4477,8 @@ main ()
   for (i = 0; i < 256; i++)
     if (XOR (islower (i), ISLOWER (i))
 	|| toupper (i) != TOUPPER (i))
-      exit(2);
-  exit (0);
+      return 2;
+  return 0;
 }
 _ACEOF
 rm -f conftest$ac_exeext
@@ -21418,7 +21418,7 @@ Display *display=NULL;
 short   major_version, minor_version;
 Status rc;
 rc=XpQueryVersion(display, &major_version, &minor_version);
-exit(0);
+return 0;
 }
 
   ;