Many files:

  Put back old code to check stack direction at configure time

1 files changed, 23 insertions, 0 deletions

diff --git a/config/ac-macros/misc.m4 b/config/ac-macros/misc.m4
index 0619a52fbbf..9f84e06fa46 100644
--- a/config/ac-macros/misc.m4
+++ b/config/ac-macros/misc.m4
@@ -450,6 +450,29 @@ AC_DEFINE([HAVE_BOOL], [1], [bool is not defined by all C++ compilators])
 fi
 ])dnl
 
+AC_DEFUN([MYSQL_STACK_DIRECTION],
+ [AC_CACHE_CHECK(stack direction for C alloca, ac_cv_c_stack_direction,
+ [AC_TRY_RUN([#include <stdlib.h>
+ int find_stack_direction ()
+ {
+   static char *addr = 0;
+   auto char dummy;
+   if (addr == 0)
+     {
+       addr = &dummy;
+       return find_stack_direction ();
+     }
+   else
+     return (&dummy > addr) ? 1 : -1;
+ }
+ int main ()
+ {
+   exit (find_stack_direction() < 0);
+ }], ac_cv_c_stack_direction=1, ac_cv_c_stack_direction=-1,
+   ac_cv_c_stack_direction=)])
+ AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction)
+])dnl
+
 AC_DEFUN([MYSQL_CHECK_LONGLONG_TO_FLOAT],
 [
 AC_MSG_CHECKING(if conversion of longlong to float works)