redis not found

[sosolal]

I want to compile Minetest but it tells me redis isn't found. Where find redis?

[PilzAdam]

You don't need it. You most likely don't have a redis server anyway.

[sosolal]

But it tells me that :

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

-- *** Will build version 0.4.9-dev ***
-- IRRLICHT_SOURCE_DIR =
-- IRRLICHT_INCLUDE_DIR = /usr/local/include/irrlicht
-- IRRLICHT_LIBRARY = /usr/local/lib/libIrrlicht.a
CMake Error at CMakeLists.txt:174 (install):
  install FILES given no DESTINATION!


-- CURL_INCLUDE_DIR = /usr/include/curl
-- CURL_LIBRARY = /usr/lib/libcurl.dylib
-- CURL_DLL =
-- cURL support enabled
-- GetText disabled
-- Sound enabled
-- Found system sqlite3 header file in /usr/include
-- Found system sqlite3 library /usr/lib/libsqlite3.dylib
-- Using project jsoncpp library
-- LuaJIT library: LUA_LIBRARY-NOTFOUND
-- LuaJIT headers: LUA_INCLUDE_DIR-NOTFOUND
-- LuaJIT not found, using bundled Lua.
-- redis library: REDIS_LIBRARY-NOTFOUND
-- redis headers: REDIS_INCLUDE_DIR-NOTFOUND
-- redis not found!
-- Configuring incomplete, errors occurred!

That's because redis is not found!

[Morn76]

CMake Error at CMakeLists.txt:174 (install):
install FILES given no DESTINATION!

That is your problem. Which OS are you building on?

[sosolal]

Darwin 13.1.0 (via uname -rs)
I've Mac OS X Mavericks, but Mavericks 10.9.1 is fundamentally Darwin 13.1.10 which is fundamentally FreeBSD

[PilzAdam]

OS X doesn't work out of the box, search the forum for topics how to build on OS X.

[Morn76]

The gist of the two forum topics is:

• Use https://github.com/mdoege/mtmake-osx to build on OS X, which has a compatibility patch
• Or simply download the pre-built binary from https://github.com/mdoege/minetest/releases

[Morn76]

Maybe the error message could be a bit less dramatic though. "redis not found!" makes it sound like a grave problem. Get rid of the exclamation mark.

[sosolal]

And if I want to modify source code?

[Morn76]

And if I want to modify source code?

If you comment out "git checkout master --force" in make_mac.sh it should not overwrite your changes in minetest-git. Perhaps remove the patch command too if its error message bothers you.

And if you want to run MT on your own machine (with all dependencies installed), you can comment out the dylibbundler stuff too.

[sosolal]

But the script doesn't works. The "redis not found!" error is still here and I cannot open minetest.app.

[Morn76]

The redis message is not a problem. Redis is an optional feature.

Have you installed all required dependencies on your system?

Please post the complete output from the script so I can see where it fails.

[joshburt]

In order to get redis support working (on linux - which is does). I had to :

1. Setup and properly configure a redis server. Go do that first or find a hosted one you can use.

2. Build the c library used to link to during minetest compiling and runtime:
a. git clone and build this: https://github.com/redis/hiredis

3. Next I had to build Minetest with redis support enabled:
cmake . -DRUN_IN_PLACE=1 -DBUILD_CLIENT=0 -DUSE_REDIS=1 -DREDIS_LIBRARY=/home/josh/hiredis/libhiredis.so -DREDIS_INCLUDE_DIR=/home/josh/hiredis/

These options are the special sauce:
-DUSE_REDIS=1 -DREDIS_LIBRARY=/home/josh/hiredis/libhiredis.so -DREDIS_INCLUDE_DIR=/home/josh/hiredis/
(Where the REDIS library and directory are correctly updated for your environment).

4. Make the hiredis library available during runtime.
Afterwards I copied the libhiredis.so library to the base of the minetest directory and created a sym link for the version specified via an 'ldd' on the resultant minetestserver binary:
libhiredis.so.0.11 -> libhiredis.so

5. Configure minetestserver to use the redis server
Update the world data storage by updating the world.mt as follows:
backend = redis
redis_address = 192.16.0.38
redis_port = 6379
redis_hash = minetest_dev

(The port and hash are optional parameters). The backend and server portal are REQUIRED.

I then launch minetestserver normally (from the root minetest directory: ./bin/minetestserver). If you missed anything it core dumps on start-up. Otherwise it acts just like a normal server but block data is stored in redis. Pure awesome! This was the steps needed for redis support in Linux. Your milage will vary and depending on the platform you're building for you might need to perform additional steps.

[sosolal]

Why "on linux". that doesn't works with another kernel?

[joshburt]

Why "on linux". that doesn't works with another kernel?

The server should compile just fine with redis support on any platform. :) I only tested Linux though since that's how I deploy back-end (server).

[sfan5]

In order to get redis support working (on linux - which is does). I had to :

1. Setup and properly configure a redis server. Go do that first or find a hosted one you can use.

2. Build the c libra
...
acts just like a normal server but block data is stored in redis. Pure awesome! This was the steps needed for redis support in Linux. Your milage will vary and depending on the platform you're building for you might need to perform additional steps.

You just perfectly summed up the content of http://dev.minetest.net/CMake_Options#Redis and http://wiki.minetest.net/Database_backends#Redis.

[joshburt]

Awesome! I totally just dug around in the source code of the commit to figure it out. :P I just created a wiki account so I can add some additional content to the working documentation. Thanks!

[sosolal]

The server should compile just fine with redis support on any platform. :) I only tested Linux though since that's how I deploy back-end (server).

Yes, but why just precise the kernel? The commands to type have nothing to do with the kernel.

[sfan5]

The server should compile just fine with redis support on any platform. :) I only tested Linux though since that's how I deploy back-end (server).

Yes, but why just precise the kernel? The commands to type have nothing to do with the kernel.

I agree.

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

ls /proc


That command has nothing to do with Linux.
sarcasm

[philipbenr]

I have had problems with not being able to compile with redis... I gave up. I am pretty sure there was something wrong with the laptop/My outdated OS. It was old and had some weird bugs with it...