ruby on rails - Cannot install mysql2 gem on openshift scaled app

Question

I'm trying to install mysql2 gem with ruby on rails 4/ruby 2.0 OpenShift scaled app. But, bundle install fails, trying "gem install mysql2", which leads to the following error:

gem install mysql2
Fetching: mysql2-0.4.1.gem (100%)
Building native extensions.  This could take a while...
ERROR:  Error installing mysql2:
    ERROR: Failed to build gem native extension.

    /opt/rh/ruby200/root/usr/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
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Using mysql_config at /opt/rh/mysql55/root/usr/bin/mysql_config
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checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
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Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
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Setting libpath to /opt/rh/mysql55/root/usr/lib64/mysql
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creating Makefile

make "DESTDIR="
gcc -I. -I/opt/rh/ruby200/root/usr/include -I/opt/rh/ruby200/root/usr/include/ruby/backward -I/opt/rh/ruby200/root/usr/include -I. -I/opt/rh/mysql55/root/usr/include/mysql -DHAVE_RUBY_THREAD_H -DHAVE_RB_THREAD_CALL_WITHOUT_GVL -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_RB_WAIT_FOR_SINGLE_FD -DHAVE_RB_HASH_DUP -DHAVE_RB_INTERN3 -DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H    -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -mtune=generic -fPIC  -m64 -o client.o -c client.c
gcc -I. -I/opt/rh/ruby200/root/usr/include -I/opt/rh/ruby200/root/usr/include/ruby/backward -I/opt/rh/ruby200/root/usr/include -I. -I/opt/rh/mysql55/root/usr/include/mysql -DHAVE_RUBY_THREAD_H -DHAVE_RB_THREAD_CALL_WITHOUT_GVL -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_RB_WAIT_FOR_SINGLE_FD -DHAVE_RB_HASH_DUP -DHAVE_RB_INTERN3 -DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H    -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -mtune=generic -fPIC  -m64 -o infile.o -c infile.c
gcc -I. -I/opt/rh/ruby200/root/usr/include -I/opt/rh/ruby200/root/usr/include/ruby/backward -I/opt/rh/ruby200/root/usr/include -I. -I/opt/rh/mysql55/root/usr/include/mysql -DHAVE_RUBY_THREAD_H -DHAVE_RB_THREAD_CALL_WITHOUT_GVL -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_RB_WAIT_FOR_SINGLE_FD -DHAVE_RB_HASH_DUP -DHAVE_RB_INTERN3 -DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H    -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -mtune=generic -fPIC  -m64 -o mysql2_ext.o -c mysql2_ext.c
gcc -I. -I/opt/rh/ruby200/root/usr/include -I/opt/rh/ruby200/root/usr/include/ruby/backward -I/opt/rh/ruby200/root/usr/include -I. -I/opt/rh/mysql55/root/usr/include/mysql -DHAVE_RUBY_THREAD_H -DHAVE_RB_THREAD_CALL_WITHOUT_GVL -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_RB_WAIT_FOR_SINGLE_FD -DHAVE_RB_HASH_DUP -DHAVE_RB_INTERN3 -DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H    -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -mtune=generic -fPIC  -m64 -o result.o -c result.c
gcc -I. -I/opt/rh/ruby200/root/usr/include -I/opt/rh/ruby200/root/usr/include/ruby/backward -I/opt/rh/ruby200/root/usr/include -I. -I/opt/rh/mysql55/root/usr/include/mysql -DHAVE_RUBY_THREAD_H -DHAVE_RB_THREAD_CALL_WITHOUT_GVL -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_RB_WAIT_FOR_SINGLE_FD -DHAVE_RB_HASH_DUP -DHAVE_RB_INTERN3 -DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H    -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -mtune=generic -fPIC  -m64 -o statement.o -c statement.c
rm -f mysql2.so
gcc -shared -o mysql2.so client.o infile.o mysql2_ext.o result.o statement.o -L. -L/opt/rh/ruby200/root/usr/lib64 -L/opt/rh/mysql55/root/usr/lib64/mysql -L. -fstack-protector -rdynamic -Wl,-export-dynamic  -m64  -lruby -L/opt/rh/mysql55/root/usr/lib64/mysql -lmysqlclient -lpthread -lz -lm -lrt -lssl -lcrypto -ldl  -lpthread -lrt -ldl -lcrypt -lm   -lc
/usr/bin/ld: cannot find -lmysqlclient
collect2: ld returned 1 exit status
make: *** [mysql2.so] Error 1


Gem files will remain installed in /var/lib/openshift/541424415004469f3a000b85/.gem/gems/mysql2-0.4.1 for inspection.
Results logged to /var/lib/openshift/541424415004469f3a000b85/.gem/gems/mysql2-0.4.1/ext/mysql2/gem_make.out

MySQL libraries/SDK are supposed to be maintained/provided by RedHat in the PaaS offering, so I'm a bit stuck. Interestingly enough, until tonight, it worked well.

EDIT: The first answers revealed, that I missed an important point in the question. In OpenShift one does not have root access to the gear, so I cannot execute yum install as suggested below. It is really an OpenShift specific question, not a general one. I definitely know how to install MySQL development libraries. Sorry about the confusion, caused by the missing piece of information.

Answer 1

On Mac OS X, and is using Homebrew:

brew install mysql

or if you're on Red Hat or CentOS or other distributions using yum:

sudo yum install mysql-devel

and finally, if you're on Ubuntu or Debian or other distributions using aptitude:

sudo apt-get install libmysqlclient-dev