mysql_client: needs thread support

Fixes:

   http://autobuild.buildroot.org/results/9b1/9b19b312651d21ea2fd54f364b11b01e4aa25e4b/build-end.log

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/collectd/Config.in

@@ -235,6 +235,7 @@ config BR2_PACKAGE_COLLECTD_MYSQL
 	bool "mysql"
 	depends on BR2_INSTALL_LIBSTDCPP # mysql
 	depends on BR2_USE_MMU # mysql
+	depends on BR2_TOOLCHAIN_HAS_THREADS # mysql
 	select BR2_PACKAGE_MYSQL_CLIENT
 	help
 	  Connects to a MySQL database and issues a "show status" command.

package/mysql_client/Config.in

@@ -2,10 +2,11 @@ config BR2_PACKAGE_MYSQL_CLIENT
 	bool "MySQL client"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_MMU # fork()
+	depends on BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_PACKAGE_NCURSES
 	select BR2_PACKAGE_READLINE
 	help
 	  MySQL client
 
-comment "Mysql client requires a toolchain with C++ support enabled"
-	depends on !BR2_INSTALL_LIBSTDCPP
+comment "Mysql client requires a toolchain with C++ and thread support"
+	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS

package/php/Config.ext

@@ -106,6 +106,7 @@ config BR2_PACKAGE_PHP_EXT_MYSQL
 	bool "Mysql"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_MMU # mysql
+	depends on BR2_TOOLCHAIN_HAS_THREADS # mysql
 	select BR2_PACKAGE_MYSQL_CLIENT
 	help
 	  MySQL support
@@ -114,6 +115,7 @@ config BR2_PACKAGE_PHP_EXT_MYSQLI
 	bool "Mysqli"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_MMU # mysql
+	depends on BR2_TOOLCHAIN_HAS_THREADS # mysql
 	select BR2_PACKAGE_MYSQL_CLIENT
 	select BR2_PACKAGE_PHP_EXT_MYSQL
 	help
@@ -130,6 +132,7 @@ config BR2_PACKAGE_PHP_EXT_PDO_MYSQL
 	bool "MySQL"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_MMU # mysql
+	depends on BR2_TOOLCHAIN_HAS_THREADS # mysql
 	select BR2_PACKAGE_MYSQL_CLIENT
 	help
 	  PDO driver for MySQL