macOS 10.14 install + Brew 更新后，我的开发系统坏了。
我无法安装 mysql gem。尝试安装时，我得到：
$ gem install mysql -v '2.8.1' --source 'http://rubygems.org/'
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
current directory: /Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/gems/mysql-2.8.1/ext/mysql_api
/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/bin/ruby -r ./siteconf20180926-49343-waujia-0.rb extconf.rb
checking for mysql_ssl_set()... yes
checking for rb_str_set_len()... yes
checking for rb_thread_start_timer()... yes
checking for mysql.h... no
checking for mysql/mysql.h... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/bin/ruby
--with-mysql-config
--without-mysql-config
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/extensions/x86-darwin-14/1.8/mysql-2.8.1/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/gems/mysql-2.8.1 for inspection.
Results logged to /Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/extensions/x86-darwin-14/1.8/mysql-2.8.1/gem_make.out
相对的 mkmf.log 是：
have_func: checking for mysql_ssl_set()... -------------------- yes
"/usr/local/bin/gcc-4.9 -o conftest -I. -I/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib/ruby/1.8/i686-darwin14.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/local/Cellar/mysql/5.7.21/include/mysql -I/usr/local/opt/libyaml/include -I/usr/local/opt/readline/include -I/usr/local/opt/libksba/include -I/usr/local/opt/openssl098/include -O2 -fno-tree-dce -fno-optimize-sibling-calls -fno-common -pipe -fno-common conftest.c -L. -L/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib -L. -L/usr/local/opt/libyaml/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/openssl098/lib -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -lruby-static -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -ldl -lobjc "
conftest.c: In function 't':
conftest.c:3:53: error: 'mysql_ssl_set' undeclared (first use in this function)
int t() { void ((*volatile p)()); p = (void ((*)()))mysql_ssl_set; return 0; }
^
conftest.c:3:53: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))mysql_ssl_set; return 0; }
/* end */
"/usr/local/bin/gcc-4.9 -o conftest -I. -I/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib/ruby/1.8/i686-darwin14.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/local/Cellar/mysql/5.7.21/include/mysql -I/usr/local/opt/libyaml/include -I/usr/local/opt/readline/include -I/usr/local/opt/libksba/include -I/usr/local/opt/openssl098/include -O2 -fno-tree-dce -fno-optimize-sibling-calls -fno-common -pipe -fno-common conftest.c -L. -L/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib -L. -L/usr/local/opt/libyaml/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/openssl098/lib -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -lruby-static -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -ldl -lobjc "
ld: warning: directory not found for option '-L/usr/local/opt/openssl098/lib'
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { mysql_ssl_set(); return 0; }
/* end */
--------------------
have_func: checking for rb_str_set_len()... -------------------- yes
"/usr/local/bin/gcc-4.9 -o conftest -I. -I/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib/ruby/1.8/i686-darwin14.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/local/Cellar/mysql/5.7.21/include/mysql -I/usr/local/opt/libyaml/include -I/usr/local/opt/readline/include -I/usr/local/opt/libksba/include -I/usr/local/opt/openssl098/include -O2 -fno-tree-dce -fno-optimize-sibling-calls -fno-common -pipe -fno-common conftest.c -L. -L/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib -L. -L/usr/local/opt/libyaml/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/openssl098/lib -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -lruby-static -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -ldl -lobjc "
conftest.c: In function 't':
conftest.c:3:53: error: 'rb_str_set_len' undeclared (first use in this function)
int t() { void ((*volatile p)()); p = (void ((*)()))rb_str_set_len; return 0; }
^
conftest.c:3:53: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))rb_str_set_len; return 0; }
/* end */
"/usr/local/bin/gcc-4.9 -o conftest -I. -I/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib/ruby/1.8/i686-darwin14.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/local/Cellar/mysql/5.7.21/include/mysql -I/usr/local/opt/libyaml/include -I/usr/local/opt/readline/include -I/usr/local/opt/libksba/include -I/usr/local/opt/openssl098/include -O2 -fno-tree-dce -fno-optimize-sibling-calls -fno-common -pipe -fno-common conftest.c -L. -L/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib -L. -L/usr/local/opt/libyaml/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/openssl098/lib -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -lruby-static -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -ldl -lobjc "
ld: warning: directory not found for option '-L/usr/local/opt/openssl098/lib'
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { rb_str_set_len(); return 0; }
/* end */
--------------------
have_func: checking for rb_thread_start_timer()... -------------------- yes
"/usr/local/bin/gcc-4.9 -o conftest -I. -I/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib/ruby/1.8/i686-darwin14.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/local/Cellar/mysql/5.7.21/include/mysql -I/usr/local/opt/libyaml/include -I/usr/local/opt/readline/include -I/usr/local/opt/libksba/include -I/usr/local/opt/openssl098/include -O2 -fno-tree-dce -fno-optimize-sibling-calls -fno-common -pipe -fno-common conftest.c -L. -L/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib -L. -L/usr/local/opt/libyaml/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/openssl098/lib -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -lruby-static -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -ldl -lobjc "
conftest.c: In function 't':
conftest.c:3:53: error: 'rb_thread_start_timer' undeclared (first use in this function)
int t() { void ((*volatile p)()); p = (void ((*)()))rb_thread_start_timer; return 0; }
^
conftest.c:3:53: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))rb_thread_start_timer; return 0; }
/* end */
"/usr/local/bin/gcc-4.9 -o conftest -I. -I/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib/ruby/1.8/i686-darwin14.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/local/Cellar/mysql/5.7.21/include/mysql -I/usr/local/opt/libyaml/include -I/usr/local/opt/readline/include -I/usr/local/opt/libksba/include -I/usr/local/opt/openssl098/include -O2 -fno-tree-dce -fno-optimize-sibling-calls -fno-common -pipe -fno-common conftest.c -L. -L/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib -L. -L/usr/local/opt/libyaml/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/openssl098/lib -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -lruby-static -L/usr/local/Cellar/mysql/5.7.21/lib -lmysqlclient -lssl -lcrypto -ldl -lobjc "
ld: warning: directory not found for option '-L/usr/local/opt/openssl098/lib'
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { rb_thread_start_timer(); return 0; }
/* end */
--------------------
have_header: checking for mysql.h... -------------------- no
"/usr/local/bin/gcc-4.9 -E -I. -I/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib/ruby/1.8/i686-darwin14.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/local/Cellar/mysql/5.7.21/include/mysql -I/usr/local/opt/libyaml/include -I/usr/local/opt/readline/include -I/usr/local/opt/libksba/include -I/usr/local/opt/openssl098/include -O2 -fno-tree-dce -fno-optimize-sibling-calls -fno-common -pipe -fno-common conftest.c -o conftest.i"
In file included from conftest.c:1:0:
/usr/local/Cellar/mysql/5.7.21/include/mysql/mysql.h:35:23: fatal error: sys/types.h: No such file or directory
#include <sys/types.h>
^
compilation terminated.
checked program was:
/* begin */
1: #include <mysql.h>
/* end */
--------------------
have_header: checking for mysql/mysql.h... -------------------- no
"/usr/local/bin/gcc-4.9 -E -I. -I/Users/MYACCOUNT/.rvm/rubies/ruby-1.8.7-p374/lib/ruby/1.8/i686-darwin14.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/local/Cellar/mysql/5.7.21/include/mysql -I/usr/local/opt/libyaml/include -I/usr/local/opt/readline/include -I/usr/local/opt/libksba/include -I/usr/local/opt/openssl098/include -O2 -fno-tree-dce -fno-optimize-sibling-calls -fno-common -pipe -fno-common conftest.c -o conftest.i"
In file included from conftest.c:1:0:
/usr/local/include/mysql/mysql.h:35:23: fatal error: sys/types.h: No such file or directory
#include <sys/types.h>
^
compilation terminated.
checked program was:
/* begin */
1: #include <mysql/mysql.h>
/* end */
--------------------
我通过 Brew 安装了 mysql 并保持 mysql、mysql@5.6 或 mysql@5.7 处于活动状态。路径在 .bash_profile 中设置：
### Customize path for MYSQL
MYSQL=/usr/local/mysql/bin
export PATH=$PATH:$MYSQL
export DYLD_LIBRARY_PATH=/usr/local/mysql/lib:$DYLD_LIBRARY_PATH
当我切换到 mysql@5.6 或 5.7 时，我会相应地更改路径。一般来说，mysql似乎存在一些问题。
当 Ruby 1.8.7、Rails 3.2.5 和 mysql 数据库中的一个 webapp 正在运行时，其他两个具有相同技术堆栈的 webapp 无法重新安装 mysql gem 或连接到数据库。
$ rake db:migrate --trace
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
rake aborted!
Mysql::Error: Table 'dev_WEBPROJECT.safts' doesn't exist: SHOW FULL FIELDS FROM `safts`
/Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/gems/activerecord-3.2.5/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:243:in `query'
/Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/gems/activerecord-3.2.5/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:243:in `execute'
/Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/gems/activerecord-3.2.5/lib/active_record/connection_adapters/abstract_adapter.rb:280:in `log'
.
.
.
/Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/gems/rake-0.9.6/lib/rake/application.rb:70:in `run'
/Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/gems/rake-0.9.6/bin/rake:37
/Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/bin/rake:22:in `load'
/Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/bin/rake:22
/Users/MYACCOUNT/.rvm/gems/ruby-1.8.7-p374@WEBPROJECT/bin/ruby_executable_hooks:15
Tasks: TOP => db:migrate => environment
任何人都可以帮忙吗？