MySQL|MySQL 源码阅读 —— 问题 expanded from macro MYSQL_VERSION_MAJOR
问题描述
在执行
make
构建时可能会报错
Building C object storage/myisam/CMakeFiles/myisam.dir/mi_rfirst.c.o
In file included from /path/to/mysql-5.7.35/storage/perfschema/cursor_by_account.cc:28:
In file included from /path/to/mysql-5.7.35/include/my_global.h:57:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX11.3.sdk/usr/include/c++/v1/math.h:309:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX11.3.sdk/usr/include/c++/v1/type_traits:417:
In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX11.3.sdk/usr/include/c++/v1/cstddef:37:
/path/to/mysql-5.7.35/version:1:1: error: expected unqualified-id
MYSQL_VERSION_MAJOR=5
^
/path/to/mysql-5.7.35/include/my_config.h:404:29: note: expanded from macro 'MYSQL_VERSION_MAJOR'
#define MYSQL_VERSION_MAJOR 5
^
原因排查 通过 Homebrew 的 mysql@5.7.rb,找到了一个 PATCH。
在 MySQL 的 Commit 记录 Bug #31466846 RENAME THE VERSION FILE TO MYSQL_VERSION 找到了答案:
Bug #31466846 RENAME THE VERSION FILE TO MYSQL_VERSION
With new versions of boost, the build is broken on windows.
is a header file which is part of C++11, but on win we
include our own VERSION instead, and the build breaks.The solution is 'git mv VERSION MYSQL_VERSION', and adapt
cmake code accordingly.Change-Id: I5211cf41fa83e879a25d4110dbb8933cd58da2f9
8.0
mysql-cluster-8.0.26mysql-cluster-8.0.25 mysql-cluster-8.0.24 mysql-cluster-8.0.23 mysql-cluster-8.0.22 mysql-8.0.26 mysql-8.0.25 mysql-8.0.24 mysql-8.0.23 mysql-8.0.22
Tor Didriksen committed on 10 Jun 2020
1 parent 6653b43 commit 51675ddb41661163c23e802a3e5eedb1344ce023
大概意思是:
【MySQL|MySQL 源码阅读 —— 问题 expanded from macro MYSQL_VERSION_MAJOR】在version
是C++11
的一个头文件,但 MySQL 以往都是用VERSION
表示的版本号,在引入文件时又因 macOS 不区分文件大小写,产生了冲突,导致编译时报错中断。
macOS Big Sur 11.5
中的 SDK 是 MacOSX11.3.sdk
,确实在 include
下存在 version
这么个头文件:/Library/Developer/CommandLineTools/SDKs/MacOSX11.3.sdk/usr/include/c++/v1/version
但在
MacOSX11.1.sdk
及更老版本中,却没有这个文件。每个版本的 Mac SDK 情况,可以参考下这个项目:所以产生问题的条件是:
https://github.com/phracker/M...
MacOSX11.1.sdk
及以下系统中编译MySQL 8.0.21
及更老版本(包括5.7.*
)时,没问题;MacOSX11.3.sdk
及以上版本中编译MySQL 8.0.22
及更新版本时,没问题;- 但
MacOSX11.3.sdk
及以上版本中编译MySQL 8.0.21
及更老版本(包括5.7.*
)时,有问题;
XCode
或 xcode-select
有关系。可以通过
/Library/Developer/CommandLineTools/SDKs
目录来判断 SDK 版本。解决方案
MySQL 8.0.22
及更新版本,官方已经修改了,但老版本怎么办?就按官方的方式修改下即可。在执行
cmake
前,先修改2个地方:- 文件
VERSION
重命名为MYSQL_VERSION
- 文件
cmake/mysql_version.cmake
中 2 处代码,VERSION
替换为MYSQL_VERSION
diff --git a/cmake/mysql_version.cmake b/cmake/mysql_version.cmake
index 43d731e..3031258 100644
--- a/cmake/mysql_version.cmake
+++ b/cmake/mysql_version.cmake
@@ -31,7 +31,7 @@ SET(DOT_FRM_VERSION "6") # Generate "something" to trigger cmake rerun when VERSION changes
CONFIGURE_FILE(
-${CMAKE_SOURCE_DIR}/VERSION
+${CMAKE_SOURCE_DIR}/MYSQL_VERSION
${CMAKE_BINARY_DIR}/VERSION.dep
)@@ -39,7 +39,7 @@ CONFIGURE_FILE( MACRO(MYSQL_GET_CONFIG_VALUE keyword var)
IF(NOT ${var})
-FILE (STRINGS ${CMAKE_SOURCE_DIR}/VERSION str REGEX "^[ ]*${keyword}=")
+FILE (STRINGS ${CMAKE_SOURCE_DIR}/MYSQL_VERSION str REGEX "^[ ]*${keyword}=")
IF(str)
STRING(REPLACE "${keyword}=" "" str ${str})
STRING(REGEX REPLACE"[ ].*" ""str "${str}")
写好的脚本直接用:
mv VERSION MYSQL_VERSION
sed -i '' 's|${CMAKE_SOURCE_DIR}/VERSION|${CMAKE_SOURCE_DIR}/MYSQL_VERSION|g' cmake/mysql_version.cmake
参考资料
- Homebrew/homebrew-core/Formula/mysql@5.7.rb
- mysql/mysql-server@Bug #31466846 RENAME THE VERSION FILE TO MYSQL_VERSION
感谢您的阅读,觉得内容不错,点个赞吧
原文地址: https://shockerli.net/post/mysql-source-version-conflict-in-cpp-11/
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