error: hiredis/hiredis.h: No such file or directory

[gedankenstuecke]

Hi,
I just tried to install recommendify on my machine but gem install always fails with the errors below during the build of the native extension. I tried to install on Mac OS 10.7, Archlinux and Debian and had no luck. So it seems to be an error on the end of the gem. ;-)

mkdir -p ../bin
gcc -Wall recommendify.c -lhiredis -o ../bin/recommendify
recommendify.c:4:29: error: hiredis/hiredis.h: No such file or directory
recommendify.c: In function ‘main’:
recommendify.c:20: error: ‘redisContext’ undeclared (first use in this function)
recommendify.c:20: error: (Each undeclared identifier is reported only once
recommendify.c:20: error: for each function it appears in.)
recommendify.c:20: error: ‘c’ undeclared (first use in this function)
recommendify.c:21: error: ‘redisReply’ undeclared (first use in this function)
recommendify.c:21: error: ‘all_items’ undeclared (first use in this function)
recommendify.c:22: error: ‘reply’ undeclared (first use in this function)
recommendify.c:83: warning: implicit declaration of function ‘redisConnectWithTimeout’
recommendify.c:92: warning: implicit declaration of function ‘redisCommand’
recommendify.c:100: warning: implicit declaration of function ‘freeReplyObject’
recommendify.c:111: error: ‘REDIS_REPLY_ARRAY’ undeclared (first use in this function)
recommendify.c:161: warning: implicit declaration of function ‘redisAppendCommand’
recommendify.c:162: warning: implicit declaration of function ‘redisGetReply’
make: *** [build] Error 1``` 

[asmuth]

Hey,

the problem is the missing hiredis dependency. On OSX run:

brew install hiredis

and on Ubuntu:

apt-get install libhiredis-dev

on other platforms:

git clone https://github.com/antirez/hiredis.git && cd hiredis && make && sudo make install && sudo ldconfig

best regards :)

[gedankenstuecke]

Thanks a lot. I somehow missed that having redis alone isn't enough. It now works for me, thanks a lot. :)

[thebyrd]

Paas Providers like Heroku don't allow you to install extra libraries. Is there a way to include all dependencies in the gem file?

[ddgromit]

@thebyrd I figured out how to get recommendify to work with Heroku. Super late, but hopefully maybe this can help anyone else with the same problem.

This guy has forked recommendify to compile the libraries it needs as part of the gem install process:
https://github.com/danmorin/recommendify/tree/native

Use this in your gemfile, bundle install and redeploy:

gem 'recommendify', git: "https://github.com/danmorin/recommendify.git", branch: "native"

[evandrix]

fyi: The repository @ github.com/antirez/hiredis.git is now @ github.com/redis/hiredis.git

[shubhagrwl]

To install hiredis on centos (yum install -y hiredis)

1. git clone http://github.com/redis/hiredis
2. sudo make
3. sudo make install
4. sudo ldconfig

Still got an error (error while loading shared libraries: libhiredis.so.0.15: cannot open shared object file: No such file or directory) then do,

• sudo echo "/usr/local/lib" > /etc/ld.so.conf.d/local.conf
• sudo ldconfig