Small shared libraries to fix glibc compatibility issues to Steam's Shogun 2 game for Ubuntu 23.04, 23.10, 24.04, 24.10, 25.04 (and above I hope). This adds a second fix I found on ProtonDB to the one from the forked repository (which was created for XCOM 2).:wq

Install basic build tools:

sudo apt install build-essential gcc-multilib

Build the 2 shared libraries

make clean install

This installs the libraries in /opt/shogun2-fix (requires root), you can also just build them with make clean all and adapt the paths to a location of your choosing.

Then add the following to the Launch Options in Steam:

LD_PRELOAD=/opt/shogun2-fix/libc_mprotect.so:/opt/shogun2-fix/libc_dlopen_mode.so %command%

Not sure when/how this was broken, but I also had to add the following to line 170 in the Shogun2.sh script in the game installation directory:

export LD_LIBRARY_PATH="${GAMEROOT}/${FERAL_LIB_PATH}:${LD_LIBRARY_PATH}"

Instead of altering the Shogun.sh script and setting the launch options you can also copy over the version from this repository where I already made both changes.

Unfortunately space symbols in the path to libc_dlopen_mode.so library are not supported by Steam/steamapps/common/XCOM 2/XCOM2WotC/XCOM2WotC.sh script out of the box. I am quite lazy to look for a solution as i am happy enough with given fix.

• The libc_dlopen_mode fix is from user vkc-1974 in the forked repository
• The libc_mprotect fix was posted by PsychoPewPew on https://www.protondb.com/app/34330