buildroot mysql mysql.mk hacking

/***********************************************************************
 *　　　　　　　　buildroot mysql mysql.mk hacking
 * 说明：
 *     大致看一下buildroot中mysql是如何进行配置，主要是看运行./configure
 * 的时候配置，有时候配置buildroot的时候，有些选项不知道，也可以到这些
 * mk文件去看看，这样就知道在make menuconfig中打开什么选项了。
 *
 *                                  2017-2-10 深圳 南山平山村 曾剑锋
 **********************************************************************/

################################################################################
#
# mysql
#
################################################################################

# mysql主版本号
MYSQL_VERSION_MAJOR = 5.1
# mysql次版本号+次版本号
MYSQL_VERSION = $(MYSQL_VERSION_MAJOR).
# mysql源代码包名称
MYSQL_SOURCE = mysql-$(MYSQL_VERSION).tar.gz
# mysql源代码路径
MYSQL_SITE = http://dev.mysql.com/get/Downloads/MySQL-$(MYSQL_VERSION_MAJOR)
MYSQL_INSTALL_STAGING = YES
MYSQL_DEPENDENCIES = readline ncurses
MYSQL_AUTORECONF = YES
MYSQL_LICENSE = GPLv2
MYSQL_LICENSE_FILES = README COPYING

# Unix socket. This variable can also be consulted by other buildroot packages
MYSQL_SOCKET = /run/mysql/mysql.sock

MYSQL_CONF_ENV = \
    ac_cv_sys_restartable_syscalls=yes \
    ac_cv_path_PS=/bin/ps \
    ac_cv_FIND_PROC="/bin/ps p \$\$PID | grep -v grep | grep mysqld > /dev/null" \
    ac_cv_have_decl_HAVE_IB_ATOMIC_PTHREAD_T_GCC=yes \
    ac_cv_have_decl_HAVE_IB_ATOMIC_PTHREAD_T_SOLARIS=no \
    ac_cv_have_decl_HAVE_IB_GCC_ATOMIC_BUILTINS=yes \
    mysql_cv_new_rl_interface=yes

MYSQL_CONF_OPTS = \
    --without-ndb-binlog \
    --without-docs \
    --without-man \
    --without-libedit \
    --without-readline \
    --with-low-memory \
    --enable-thread-safe-client \
    --with-unix-socket-path=$(MYSQL_SOCKET) \
    --disable-mysql-maintainer-mode

# host-mysql only installs what is needed to build mysql, i.e. the
# gen_lex_hash tool, and it only builds the parts that are needed to
# create this tool
HOST_MYSQL_DEPENDENCIES = host-zlib host-ncurses

HOST_MYSQL_CONF_OPTS = \
    --with-embedded-server \
    --disable-mysql-maintainer-mode

define HOST_MYSQL_BUILD_CMDS
    $(HOST_MAKE_ENV) $(MAKE) -C $(@D)/include my_config.h
    $(HOST_MAKE_ENV) $(MAKE) -C $(@D)/mysys libmysys.a
    $(HOST_MAKE_ENV) $(MAKE) -C $(@D)/strings libmystrings.a
    $(HOST_MAKE_ENV) $(MAKE) -C $(@D)/vio libvio.a
    $(HOST_MAKE_ENV) $(MAKE) -C $(@D)/dbug libdbug.a
    $(HOST_MAKE_ENV) $(MAKE) -C $(@D)/regex libregex.a
    $(HOST_MAKE_ENV) $(MAKE) -C $(@D)/sql gen_lex_hash
endef

define HOST_MYSQL_INSTALL_CMDS
    $(INSTALL) -m   $(@D)/sql/gen_lex_hash $(HOST_DIR)/usr/bin/
endef

ifeq ($(BR2_PACKAGE_OPENSSL),y)
MYSQL_DEPENDENCIES += openssl
endif

ifeq ($(BR2_PACKAGE_ZLIB),y)
MYSQL_DEPENDENCIES += zlib
endif

ifeq ($(BR2_PACKAGE_MYSQL_SERVER),y)
MYSQL_DEPENDENCIES += host-mysql host-bison

MYSQL_CONF_OPTS += \
    --localstatedir=/var/mysql \
    --with-atomic-ops=up \
    --with-embedded-server \
    --without-query-cache \
    --without-plugin-partition \
    --without-plugin-daemon_example \
    --without-plugin-ftexample \
    --without-plugin-archive \
    --without-plugin-blackhole \
    --without-plugin-example \
    --without-plugin-federated \
    --without-plugin-ibmdb2i \
    --without-plugin-innobase \
    --without-plugin-innodb_plugin \
    --without-plugin-ndbcluster

# Debugging is only available for the server, so no need for
# this if-block outside of the server if-block
ifeq ($(BR2_ENABLE_DEBUG),y)
MYSQL_CONF_OPTS += --with-debug=full
else
MYSQL_CONF_OPTS += --without-debug
endif

define MYSQL_USERS
    mysql - nogroup - * /var/mysql - - MySQL daemon
endef

define MYSQL_ADD_FOLDER
    $(INSTALL) -d $(TARGET_DIR)/var/mysql
endef

MYSQL_POST_INSTALL_TARGET_HOOKS += MYSQL_ADD_FOLDER

# 安装mysql的SysV开机自启动文件
define MYSQL_INSTALL_INIT_SYSV
    $(INSTALL) -D -m  package/mysql/S97mysqld \
        $(TARGET_DIR)/etc/init.d/S97mysqld
endef

# 安装mysql的Systemd开机自启动文件
define MYSQL_INSTALL_INIT_SYSTEMD
    $(INSTALL) -D -m  package/mysql/mysqld.service \
        $(TARGET_DIR)/usr/lib/systemd/system/mysqld.service
    mkdir -p $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants
    ln -sf ../../../../usr/lib/systemd/system/mysqld.service \
        $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants/mysqld.service
endef

else
MYSQL_CONF_OPTS += \
    --without-server
endif

define MYSQL_REMOVE_TEST_PROGS
    rm -rf $(TARGET_DIR)/usr/mysql-test $(TARGET_DIR)/usr/sql-bench
endef

MYSQL_POST_INSTALL_TARGET_HOOKS += MYSQL_REMOVE_TEST_PROGS

$(eval $(autotools-package))
$(eval $(host-autotools-package))