MYSQL: Another jab at proper my_bool detection.

The previous check did not work because you cannot
check typedef's with #if(n)def.

1 files changed, 5 insertions, 7 deletions

diff --git a/configure.ac b/configure.ac
index 1472877d1..3e7b42a12 100644
--- a/configure.ac
+++ b/configure.ac
@@ -940,14 +940,12 @@ mysql_bool="bool"
 AS_IF([test "x$mysql" = "xtrue"],
   [AC_MSG_CHECKING([for my_bool])
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
-     [[#include <mysql/mysql.h>]],
-     [[#ifndef my_bool
-#no my_bool found
-#endif]])],
-      [AC_MSG_RESULT([yes])
-       mysql_bool="my_bool"],
+     [[#include <mysql/mysql.h>]
+      [typedef int my_bool;]])], # Hint: this fails if my_bool is defined already
       [AC_MSG_RESULT([no])
-       mysql_bool="bool"])])
+       mysql_bool="bool"],
+      [AC_MSG_RESULT([yes])
+       mysql_bool="my_bool"])])
 
 AC_SUBST([mysql_bool])