update autoconf scripts to check MySQL..1.91

moved autoconf DEFUN macros to m4 subdirectory
autogen.sh calls aclocal to include m4 directory.
merged in changes from 1.19b1
fixed log_sql_merge_config bug in 1.19b1
release 1.91

1 files changed, 6 insertions, 1 deletions

diff --git a/configure.ac b/configure.ac
index 4fa277a..56f648c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 dnl Required initializer
-AC_INIT(mod_log_sql, 1.90)
+AC_INIT(mod_log_sql, 1.91)
 AC_PREREQ(2.53)
 AC_CONFIG_HEADERS(config.h)
 
@@ -14,6 +14,11 @@ CHECK_PATH_APACHE($APACHE_VERSION,
                 AC_MSG_ERROR([*** Apache version $APACHE_VERSION not found!])
                 )
 
+CHECK_PATH_MYSQL(:,
+                AC_MSG_ERROR([*** Mysql client libraries not found!])
+                )
+
+
 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
 
 dnl Write config.status and the Makefile