Fix missing _srv prefix for dedicated server build

[Masterkatze]

Description

To run dedicated server on Linux we have to create _srv.so -> .so symlinks, which should not be necessary. This need is caused by 2 issues:

1. While building dedicated server shared library we link it to vstdlib and tier0 libraries, which has no _srv suffix. Simply renaming these libraries before building is enough to fix.
2. _DLL_EXT compile definition which is used in DLL_EXT_STRING macro contained no _srv suffix for dedicated build, which made it necessary to create symlinks for soundemittersystem and scenefilecache libraries. This issue was introduced while moving to CMake build system.

How to test the fix:

1. On Linux, install server_srv.so from neo-*-*-dedicated-Linux-Release.zip
2. Remove all non-_srv.so files in Neotokyo Rebuild Dedicated Server/bin/linux64 (there should be 14 _srv.so files left after removing)
3. Start the dedicated server - it should start without a crash

Toolchain

• Linux GCC Distro Native [Arch Linux, GCC 15.2.1 20260209]

Linked Issues

• fixes Steam Dedicated Server does not launch on Linux #1919

[Masterkatze]

How I run it, using Steam-installed dedicated server:

cd "/home/orange/.steam/steam/steamapps/common/Neotokyo Rebuild Dedicated Server"
./srcds_linux64.sh -console -insecure +sv_lan 0 -game neo -maxplayers 32 +map ntre_rise_ctg

Probably unrelated, but:

Core was generated by `bin/linux64/server_srv.so -game neo -binary bin/linux64/server_srv.so'.
...
gs             0x0                 0

Can you recheck if it still happen when you run the server using my command above?

[Rainyan]

How I run it, using Steam-installed dedicated server:

cd "/home/orange/.steam/steam/steamapps/common/Neotokyo Rebuild Dedicated Server"
./srcds_linux64.sh -console -insecure +sv_lan 0 -game neo -maxplayers 32 +map ntre_rise_ctg

Ah, it was a case of me forgetting to append the LD_LIBRARY_PATH for the x64 libs. I didn't have any .sh file in the SRCDS root dir, but this worked:

$ LD_LIBRARY_PATH=".:bin/linux64:$LD_LIBRARY_PATH" ./srcds_linux64 -console -insecure +sv_lan 0 -game neo -maxplayers 32 +map ntre_rise_ctg

I don't have time to verify with the game client currently, but will do so later today. But it seems like it's working fine since this launched fine without having done any of the symlinking that was previously needed.