From e1f1d473091e2a33e9a18942dfb1416a27019e0f Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 28 Nov 2011 16:15:03 +0200
Subject: Clear shell variables before appending

---
 m4/mysql.m4  | 2 ++
 m4/oracle.m4 | 2 ++
 m4/pgsql.m4  | 2 ++
 3 files changed, 6 insertions(+)

(limited to 'm4')

diff --git a/m4/mysql.m4 b/m4/mysql.m4
index 102f150..a93efe6 100644
--- a/m4/mysql.m4
+++ b/m4/mysql.m4
@@ -207,6 +207,8 @@ AC_CONFIG_COMMANDS([mysql.options],
    rm -f db.options
    echo '#! /bin/sh' >db-driver
 
+   echo 'opt=' >>db-driver
+
    if test x$mysql_user_set = xyes; then
      echo "--user '$mysql_user'" >>db.options
      echo 'opt="$opt --user='"$mysql_user"'"' >>db-driver
diff --git a/m4/oracle.m4 b/m4/oracle.m4
index bf192e4..24e2724 100644
--- a/m4/oracle.m4
+++ b/m4/oracle.m4
@@ -184,6 +184,8 @@ AC_CONFIG_COMMANDS([oracle.options],
    rm -f db.options
    echo '#! /bin/sh' >db-driver
 
+   echo 'conn_str=' >>db-driver
+
    if test x$oracle_user_set = xyes; then
      echo "--user '$oracle_user'" >>db.options
      echo 'conn_str="'"$oracle_user"'"' >>db-driver
diff --git a/m4/pgsql.m4 b/m4/pgsql.m4
index a75a95e..b38bf34 100644
--- a/m4/pgsql.m4
+++ b/m4/pgsql.m4
@@ -153,6 +153,8 @@ AC_CONFIG_COMMANDS([pgsql.options],
    rm -f db.options
    echo '#! /bin/sh' >db-driver
 
+   echo 'opt=' >>db-driver
+
    if test x$pgsql_user_set = xyes; then
      echo "--username '$pgsql_user'" >>db.options
      echo 'opt="$opt --username='"$pgsql_user"'"' >>db-driver
-- 
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