Attempting to install a specific version Mysql2 Gem. And I get this:
sudo gem install mysql2 -v '0.3.20'
Building native extensions. This could take a while...
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
/usr/local/var/rbenv/versions/2.2.3/bin/ruby -r ./siteconf20161017-56699-1dsu6v9.rb extconf.rb
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
-----
Using mysql_config at /usr/local/bin/mysql_config
-----
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
-----
Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
-----
-----
Setting libpath to /usr/local/Cellar/mysql/5.7.16/lib
-----
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
compiling client.c
compiling infile.c
compiling mysql2_ext.c
compiling result.c
linking shared-object mysql2/mysql2.bundle
ld: library not found for -lssl
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [mysql2.bundle] Error 1
make failed, exit code 2
For reference I ran brew install mysql beforehand and it ran successfully. Also I tried uninstalling all versions of brew's mysql references just in case.
Is there something im missing? I've looked around and most pages point back to making sure you run brew install mysql which I have.
In case I wasn't more clear with my above explanation, the failure I am getting is after successfully running brew install mysql the error is from trying to install the gem afterwards via gem install mysql2 -v '0.3.20'
Any idea?
Thanks
How to make it work on MacOS Mojave.
Make sure openssl is installed on Mac via Homebrew:
brew install openssl
Then install mysql2 gem following this special way:
gem install mysql2 -v 'x.x.x' -- --with-ldflags=-L/usr/local/opt/openssl/lib --with-cppflags=-I/usr/local/opt/openssl/include
where x.x.x - specified version of the mysql2 gem.
Just for reference what ended up working was xcode-select --install which seemed to install the OpenSSL libraries which took care of the ld: library not found for -lssl issue.
Related
I'm trying to install mysql2 gem (0.4.5) on macOS Sierra (10.12.1) and getting the error. I don't have local mysql server, it's remote.
Here is error log:
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
-----
Using mysql_config at /usr/local/bin/mysql_config
-----
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
-----
Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
-----
-----
Setting libpath to /usr/local/Cellar/mysql-connector-c/6.1.9/lib
-----
creating Makefile
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/Users/user/.rbenv/versions/2.3.4/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-16/2.3.0-static/mysql2-0.4.4/mkmf.log
current directory: /Users/user/.rbenv/versions/2.3.4/lib/ruby/gems/2.3.0/gems/mysql2-0.4.4/ext/mysql2
make "DESTDIR=" clean
current directory: /Users/user/.rbenv/versions/2.3.4/lib/ruby/gems/2.3.0/gems/mysql2-0.4.4/ext/mysql2
make "DESTDIR="
compiling client.c
compiling infile.c
compiling mysql2_ext.c
compiling result.c
compiling statement.c
linking shared-object mysql2/mysql2.bundle
ld: library not found for -l-lpthread
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [mysql2.bundle] Error 1
make failed, exit code 2
Did anyone meet similar error?
Fix:
Edit /usr/local/Cellar/mysql-connector-c/6.1.10/bin/mysql_config, find this line:
libs="$libs -l "
and change it to
libs="$libs -l mysqlclient "
Explanation:
-l-lpthread
The linker does not understand the option -l-lpthread. Two -l-l linker options are jammed up against each other. It is because the library name mysqlclientis missing from the generated make file.
I ran into this issue when trying to build the native extensions for the mysql2 gem on Ruby 2.4.1 using the mysql-connector-c from Home Brew
This was on MacOS 10.12.5.
The generated LIBS variable should look something this:
LIBS = $(LIBRUBYARG_SHARED) -L/usr/local/Cellar/mysql-connector-c/6.1.10/lib -l mysqlclient -lpthread -ldl -lobjc
It appears the variable is expanded from the file /usr/local/Cellar/mysql-connector-c/6.1.10/bin/mysql_config
The libs var in the file mysql_config should contain:
libs="$libs -l mysqlclient "
instead of
libs="$libs -l "
The var embedded_libs may be wrong too?
The mysql-connector-c lib installs and build fine via Home Brew it just appears the file mysql_config is incorrect or generated incorrectly.
Not sure the cause of the issue. Possibly Home Brew, mysql-connector-c, mysql2 gem build process, user environment?
The issue is that you're missing a library as the error message indicates
ld: library not found for -l-lpthread
EDIT:
There seem to be other errors related that may be fixed with the instructions below, namely:
ld: library not found for -lssl
My guess is that you did not install xcode yet which happens to install a few more libraries. Please make sure to install xcode through the official app-store.
It might be necessary to re-install the command-line tools again as well (even if you had xcode installed and just updated it at some point).
xcode-select --install
Let me know if this helped!
I'm not sure if the issue is that the mysql-connector-c formula is broken in Homebrew, or if the issues lies in the mysql2 gem, but you can work around the issue by installing the mysql formula.
Even if you don't need a local MySQL server for development, the version of mysql_config from the mysql formula correctly returns the list of libraries required to link the gem's native extension.
If you already have mysql-connector-c installed:
brew unlink mysql-connector-c
# OR
brew uninstall mysql-connector-c
Install the mysql formula:
brew install mysql
I'm trying to install mysql2 gem for rails applications but it gives me following error while running sudo gem install mysql2
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
current directory: /Users/ateeq/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mysql2-0.4.5/ext/mysql2
/Users/ateeq/.rbenv/versions/2.3.1/bin/ruby -r ./siteconf20161103-83594-10ft58j.rb extconf.rb
checking for rb_absint_size()... yes
checking for rb_absint_singlebit_p()... yes
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
checking for rb_big_cmp()... yes
-----
Using mysql_config at /usr/local/bin/mysql_config
-----
checking for mysql.h... yes
checking for SSL_MODE_DISABLED in mysql.h... yes
checking for SSL_MODE_PREFERRED in mysql.h... yes
checking for SSL_MODE_REQUIRED in mysql.h... yes
checking for SSL_MODE_VERIFY_CA in mysql.h... yes
checking for SSL_MODE_VERIFY_IDENTITY in mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
-----
Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
-----
-----
Setting libpath to /usr/local/Cellar/mysql/5.7.16/lib
-----
creating Makefile
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/Users/ateeq/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-16/2.3.0-static/mysql2-0.4.5/mkmf.log
current directory: /Users/ateeq/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mysql2-0.4.5/ext/mysql2
make "DESTDIR=" clean
current directory: /Users/ateeq/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mysql2-0.4.5/ext/mysql2
make "DESTDIR="
compiling client.c
compiling infile.c
compiling mysql2_ext.c
compiling result.c
compiling statement.c
linking shared-object mysql2/mysql2.bundle
ld: library not found for -lssl
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [mysql2.bundle] Error 1
make failed, exit code 2
Gem files will remain installed in /Users/ateeq/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mysql2-0.4.5 for inspection.
Results logged to /Users/ateeq/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-16/2.3.0-static/mysql2-0.4.5/gem_make.out
I installed rails via brew & rbenv. Versions are mentioned below:
Ruby Version: ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin16]
Rails Version: Rails 4.2.6
MySql Version: mysql-5.7.16
Pull up an instance of Terminal and run:
brew doctor
It's likely that one or more dependencies for building the mysql gem are out of date.
You'll have to run:
brew update
You probably also upgraded to the Sierra release of OS X recently. Make sure your XCode command line tools is up to date. Run:
xcode-select --install
Make sure you accept the license for the new version of XCode by running:
sudo xcodebuild -license
Here is my solution for above error:
I just uninstalled mysql by running brew remove mysql and then run following command to install mysql2 gem sudo gem install mysql2. It worked for me. After this, I reinstalled mysql by running brew install mysql.
P.s. I don't know about this behaviour. If anyone can explain, it'd be great.
I have recently installed rvm to use rails5 along with rails3.x version in my current system. When i tried to create new rails5 application, i have got the below error
Could not find proper version of railties (3.2.13) in any of the sources
Run `bundle install` to install missing gems.
And when i try to do bundle install, i got stuck with this
gem install mysql2 -v '0.3.11'
Building native extensions. This could take a while...
/home/himanth/.rvm/rubies/ruby-2.3.1/lib/ruby/site_ruby/2.3.0/rubygems/ext/builder.rb:73: warning: Insecure world writable dir /home/himanth/.rvm/gems in PATH, mode 040777
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
/home/himanth/.rvm/rubies/ruby-2.3.1/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... yes
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
compiling mysql2_ext.c
In file included from ./client.h:11:0,
from ./mysql2_ext.h:39,
from mysql2_ext.c:1:
/home/himanth/.rvm/rubies/ruby-2.3.1/include/ruby-2.3.0/ruby/backward/rubysig.h:14:2: warning: #warning rubysig.h is obsolete [-Wcpp]
In file included from ./mysql2_ext.h:39:0,
from mysql2_ext.c:1:
./client.h: In function 'rb_thread_blocking_region':
./client.h:23:3: error: 'TRAP_BEG' undeclared (first use in this function)
./client.h:23:3: note: each undeclared identifier is reported only once for each function it appears in
./client.h:25:3: error: 'TRAP_END' undeclared (first use in this function)
mysql2_ext.c: At top level:
./client.h:16:1: warning: 'rb_thread_blocking_region' defined but not used [-Wunused-function]
make: *** [mysql2_ext.o] Error 1
make failed, exit code 2
Gem files will remain installed in /home/himanth/.rvm/gems/ruby-2.3.1#rails5/gems/mysql2-0.3.11 for inspection.
Results logged to /home/himanth/.rvm/gems/ruby-2.3.1#rails5/extensions/x86_64-linux/2.3.0/mysql2-0.3.11/gem_make.out
An error occurred while installing mysql2 (0.3.11), and Bundler cannot continue.
Make sure that `gem install mysql2 -v '0.3.11'` succeeds before bundling.
Got stuck with this for quite some time, any help would be much appreciated.
From Terminal try following:
For Ubuntu:
sudo apt-get install mysql-client libmysqlclient-dev
sudo gem install mysql2
For Mac:
brew install mysql
sudo gem install mysql2
try the below:
gem install rails
After that install mysql server
sudo apt-get install mysql-client libmysqlclient-dev
then bundle install
When trying to run a rails server in my current directory (which is a new rails project), it says that I need to install the mysql2 gem. At first, I had no idea what this meant... Then, I did some poking around, and finally decided to install the gem. However, I am getting this super pesky error (seeing as I just spent 2 hours trying to investigate, and solve another error). I am on the brink of giving up, but I really want to try rails. Please help!
Currently, if I run sudo gem install mysql2, or even as some people told me to do online, gem install mysql -- \ --with-mysql-config=/Applications/MAMP/Library/bin/mysql_config (I have MAMP), it gives me the following error:
Building native extensions. This could take a while...
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
/Users/vicky/.rvm/rubies/ruby-2.0.0-p247/bin/ruby extconf.rb
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
-----
Using mysql_config at /Applications/MAMP/Library/bin/mysql_config
-----
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
-----
Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
-----
-----
Setting libpath to /Applications/MAMP/Library/lib
-----
creating Makefile
make "DESTDIR="
compiling client.c
compiling mysql2_ext.c
compiling result.c
linking shared-object mysql2/mysql2.bundle
ld: warning: directory not found for option '-L/Users/mpapis/.sm/pkg/active/lib'
ld: library not found for -lmysqlclient
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [mysql2.bundle] Error 1
Gem files will remain installed in /Users/username/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/gems/2.0.0/gems/mysql2-0.3.14 for inspection.
Results logged to /Users/username/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/gems/2.0.0/gems/mysql2-0.3.14/ext/mysql2/gem_make.out
Have you considered installing MySQL with homebrew (http://brew.sh/)? MAMP stands for Mac-Apache-MySQL-PHP (the last part of this being the most important). I would suggest just installing MySQL directly on your box (homebrew takes care of all the heavy lifting) and afterwards I doubt you'll have any difficulty installing that gem.
To install homebrew --
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
Run brew doctor follow any instructions and then afterwards to install MySQL run brew install mysql and follow any of the instructions it provides for setting up a user, etc...
============= UPDATE ==============
SO, what you'll want to do is use brew this way to install MySQL and then install the gem in the normal fashion - sudo gem install mysql2 assuming this works, then you will be able to switch back to the old MySQL install through MAMP via -
sudo nano /etc/paths
then add this line to the top of the document -
/Applications/MAMP/Library/bin
restart your terminal and then run mysql to double check that you are using the MAMP installation of MySQL, and you'll be good to go.
I have a clean build system as follows
Ubuntu 11.04
Rvm 1.13.5
Ruby 1.9.3p194
Rails 3.2.3
Gem 1.8.24
MySql 5.5.24-1 (installed in /usr/local)
I am trying to install the mysql2 gem (0.3.11) and getting the following problem:
pal#smurf01:~$ sudo gem install mysql2
[sudo] password for pal:
Building native extensions. This could take a while...
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
/usr/local/rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... yes
checking for rb_wait_for_single_fd()... yes
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
creating Makefile
make
compiling client.c
client.c: In function 'rb_raise_mysql2_error':
client.c:98:3: warning: ISO C90 forbids mixed declarations and code
client.c: In function 'rb_mysql_client_socket':
client.c:590:3: warning: ISO C90 forbids mixed declarations and code
compiling mysql2_ext.c
compiling result.c
linking shared-object mysql2/mysql2.so
/usr/bin/ld: skipping incompatible /usr/local/mysql/lib/libmysqlclient_r.so when searching for -lmysqlclient_r
/usr/bin/ld: skipping incompatible /usr/local/mysql/lib/libmysqlclient_r.a when searching for -lmysqlclient_r
/usr/bin/ld: cannot find -lmysqlclient_r
collect2: ld returned 1 exit status
make: *** [mysql2.so] Error 1
Gem files will remain installed in /usr/local/rvm/gems/ruby-1.9.3-p194/gems/mysql2-0.3.11 for inspection.
Results logged to /usr/local/rvm/gems/ruby-1.9.3-p194/gems/mysql2-0.3.11/ext/mysql2/gem_make.out
pal#smurf01:~$
First question: Has anyone got Rails mysql2 running with MySql 5.5.1 on Ubuntu? I have it running on another system with 5.1. The gem description is vague on supported MySql versions.
Second question: Has anyone encountered this problem? I± have battled various library issues with the mysql2 gem over the passed year or so but this seems to be different.
Any assistance is gratefully recieved.
BTW: Reverting back to MySql 5.1 is a valid solution!
Regards
Peter
Or just apt-get install libmysqlclient-dev and then gem install mysql2
So the problem appears to have been a missing library and some links. Doing the following solved the issue.
Get the new and install the libmysqlclient-dev deb package kindly provided by Nathan Rennie Waldock
wget http://ppa.launchpad.net/nathan-renniewaldock/ppa/ubuntu/pool/main/m/mysql-5.5/libmysqlclient-dev_5.5.24-1~ppa1~natty_amd64.deb./;l
dpkg -i libmysqlclient-dev_5.5.24-1~ppa1~natty_amd64.deb
Then create some links that mysql2 needs as it can't seem to follow the mysql path
cd /usr/lib/
ln -s /usr/local/mysql-5.5.24-linux2.6-x86_64/lib/libmysqlclient_r.a .
ln -s /usr/local/mysql-5.5.24-linux2.6-x86_64/lib/libmysqlclient_r.so .
ln -s /usr/local/mysql-5.5.24-linux2.6-x86_64/lib/libmysqlclient_r.so.18 .
ln -s /usr/local/mysql-5.5.24-linux2.6-x86_64/lib/libmysqlclient_r.so.18.0.0 .
Now happily install the mysql2 gem
sudo gem install mysql2
Fetching: mysql2-0.3.11.gem (100%)
Building native extensions. This could take a while...
Successfully installed mysql2-0.3.11
1 gem installed
Installing ri documentation for mysq2l-0.3.11...
Installing RDoc documentation for mysql2-0.3.11...
Had the same issue in Ubuntu 12.04 also using the ppa mentioned in the accepted answer.
But also there was no libmysqlclient file on my system with _r in the name.
Googling around I found out that package builders have started to drop the _r suffix from the files, so that might have happened between 11.10 and 12.04.
Also the paths were a bit different to the once mentioned so these are the symlinks that I had to create:
ln -s /usr/lib/x86_64-linux-gnu/libmysqlclient.a ./libmysqlclient_r.a
ln -s /usr/lib/x86_64-linux-gnu/libmysqlclient.so ./libmysqlclient_r.so
ln -s /usr/lib/x86_64-linux-gnu/libmysqlclient.so.18 ./libmysqlclient_r.so.18
ln -s /usr/lib/x86_64-linux-gnu/libmysqlclient.so.18.0.0 ./libmysqlclient_r.so.18.0.0
I had this problem as well...
I did dpkg -r mysql-devel as when I was trying to do apt-get install libmysqlclient-dev I got an error saying:
Unpacking libmysqlclient-dev (from .../libmysqlclient-dev_5.5.24-0ubuntu0.12.04.1_i386.deb) ... dpkg:
error processing
/var/cache/apt/archives/libmysqlclient-dev_5.5.24-0ubuntu0.12.04.1_i386.deb
(--unpack): trying to overwrite '/usr/bin/mysql_config', which is
also in package mysql-devel 5.5.28-2
After doing this, gem install mysql2 worked! yay :)