Ryzom

It's written:
- CMake Error: your CXX compiler: "CMAKE_CXX_COMPILER-NOTFOUND" was not found. Please set CMAKE_CXX_COMPILER to a valid compiler path or name.
CentOS is a webhosting distro not a dev one, so dev packages are not installed by default.
Install gcc, g++, cpp

- Could NOT find LibXml2 (missing: LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR)
Install libxml2-dev (or whatever the name on CentOS)

Here a part of my notes for CentOS 5.7
yum install gcc gcc-c++ libtool automake autoconf cmake python-devel libxml2-devel libpng-devel curl-devel freetype-devel mesa-libGL-devel mysql-server mysql-devel libvorbis-devel

[root@eagle952 build]# yum install gcc g++ cpp
Loaded plugins: priorities
Setting up Install Process
Package gcc-4.4.6-4.el6.x86_64 already installed and latest version
No package g++ available.
Package cpp-4.4.6-4.el6.x86_64 already installed and latest version
Nothing to do
[root@eagle952 build]# yum install libxml-devel
Loaded plugins: priorities
Setting up Install Process
No package libxml-devel available.
Error: Nothing to do

Use the full command:
yum install gcc gcc-c++ libtool automake autoconf cmake python-devel libxml2-devel libpng-devel curl-devel freetype-devel mesa-libGL-devel mysql-server mysql-devel libvorbis-devel

-- The CXX compiler identification is GNU
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- DEBUG size_t is 8
-- DEBUG off_t is 8
-- checking for module 'libxml-2.0'
-- found libxml-2.0, version 2.7.6
-- Found LibXml2: /usr/lib64/libxml2.so
-- Found ZLIB: /usr/lib64/libz.so
-- Found PNG: /usr/lib64/libpng.so
-- Warning: Unable to find Jpeg!
-- Found FreeType: /usr/lib64/libfreetype.so
-- Found Ogg: /usr/lib64/libogg.so
-- Found Vorbis: /usr/lib64/libvorbis.so
-- Looking for XOpenDisplay in /usr/lib64/libX11.so;/usr/lib64/libXext.so
-- Looking for XOpenDisplay in /usr/lib64/libX11.so;/usr/lib64/libXext.so - found
-- Looking for gethostbyname
-- Looking for gethostbyname - found
-- Looking for connect
-- Looking for connect - found
-- Looking for remove
-- Looking for remove - found
-- Looking for shmat
-- Looking for shmat - found
-- Found X11: /usr/lib64/libX11.so
-- Found XF86VidMode: /usr/lib64/libXxf86vm.so
-- Found OpenSSL: /usr/lib64/libssl.so
-- Found MySQL: /usr/include/mysql, optimized;/usr/lib64/mysql/libmysqlclient.so;/usr/lib64/libssl.so
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
OPENAL_INCLUDE_DIR
used as include directory in directory /home/ryzom/code/nel/src/sound/driver/openal
OPENAL_LIBRARY
linked by target "nel_drv_openal" in directory /home/ryzom/code/nel/src/sound/driver/openal

-- Configuring incomplete, errors occurred!

If i remember correctly, the openal package is deprecated.

You have to build openal from source:
wget http://connect.creativelabs.com/openal/Downloads/openal-soft-1.13.tbz2
tar xvfj openal-soft-1.13.tbz2
cd openal-soft-1.13
cd build
ccmake ..
make
make install

cmake DWITH_NEL_TESTS=OFF DWITH_NEL_SAMPLES=OFF DWITH_NEL_TOOLS=OFF DWITH_RYZOM_CLIENT=OFF DWITH_RYZOM_TOOLS=OFF ..
- DEBUG size_t is 8
-- DEBUG off_t is 8
-- Warning: Unable to find Jpeg!
-- Found MySQL: /usr/include/mysql, optimized;/usr/lib64/mysql/libmysqlclient.so;/usr/lib64/libssl.so
-- Configuring done
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/dms.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/scenario.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/user_connection_mgr.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/object.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/server_animation_module.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/server_admin_module.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/server_edition_module.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/string_mgr_module.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/scenario_entry_points.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/small_string_manager.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/r2_ligo_config.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/r2_modules_itf.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/r2_share_itf.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/ring_access.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/common/src/game_share/ring_session_manager_itf.cpp" is listed multiple times for target "ryzom_gameshare".
Warning: Source file "/home/ryzom/code/ryzom/server/src/server_share/r2_session_backup_module.cpp" is listed multiple times for target "ryzom_servershare".
Warning: Source file "/home/ryzom/code/ryzom/server/src/server_share/r2_vision.cpp" is listed multiple times for target "ryzom_servershare".
Warning: Source file "/home/ryzom/code/ryzom/server/src/server_share/r2_variables.cpp" is listed multiple times for target "ryzom_servershare".
-- Generating done
-- Build files have been written to: /home/ryzom/code/build

thank's

You should should add to CMake command:
-DWITH_STATIC=ON -DWITH_STATIC_DRIVERS=ON

My Machine:
AMD Athlon II X4 605e, Quad-Core
8 GB DDR3-RAM ECC

Command: make -j4 (?)

Number of core + 1 => -j5
-j1 to debug

make -j5
Building...

thank you!