Error installing ruby ​​using jemalloc

I am on ubuntu 12.04.5 LTS and tried to install ruby ​​with jemalloc. Jemalloc was installed successfully ( https://blog.scalingo.com/2017/05/02/improve-ruby-application-memory-jemalloc.html ) but when installing ruby ​​2.3.4 it gave the following error.

>rvm install 2.3.4 -C --with-jemalloc

Warning, new version of rvm available '1.29.1', you are using older version '1.27.0'.
You can disable this warning with:    echo rvm_autoupdate_flag=0 >> ~/.rvmrc
You can enable  auto-update  with:    echo rvm_autoupdate_flag=2 >> ~/.rvmrc
ruby-2.3.4 - #removing src/ruby-2.3.4..
Checking requirements for ubuntu.
Requirements installation successful.
Installing Ruby from source to: /home/deploy/.rvm/rubies/ruby-2.3.4, this may take a while depending on your cpu(s)...
ruby-2.3.4 - #downloading ruby-2.3.4, this may take a while depending on your connection...
ruby-2.3.4 - #extracting ruby-2.3.4 to /home/deploy/.rvm/src/ruby-2.3.4....
ruby-2.3.4 - #configuring...........................................................
ruby-2.3.4 - #post-configuration..
ruby-2.3.4 - #compiling.....
Error running '__rvm_make -j2',
showing last 15 lines of /home/deploy/.rvm/log/1494486344_ruby-2.3.4/make.log
compiling enumerator.c
compiling error.c
compiling eval.c
eval.c: In function 'rb_raise_jump':
eval.c:763:8: warning: unused variable 'mid' [-Wunused-variable]
compiling load.c
compiling proc.c
compiling file.c
compiling gc.c
In file included from gc.c:50:0:
/usr/include/malloc.h:152:15: error: conflicting types for 'malloc_usable_size'
/usr/include/jemalloc/jemalloc.h:45:8: note: previous declaration of 'malloc_usable_size' was here
make: *** [gc.o] Error 1
make: *** Waiting for unfinished jobs....
++ return 2
There has been an error while running make. Halting the installation.

      

        
        
        
      

    

Has anyone come across this before or may have experience with it, please help.