feat: add Ubuntu 24.04 support alongside 22.04#9596
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youtalk wants to merge 4 commits intocarla-simulator:ue5-devfrom
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feat: add Ubuntu 24.04 support alongside 22.04#9596youtalk wants to merge 4 commits intocarla-simulator:ue5-devfrom
youtalk wants to merge 4 commits intocarla-simulator:ue5-devfrom
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youtalk
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Mar 20, 2026
youtalk
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Mar 20, 2026
UE5's clang with -std=gnu++20 implicitly defines _GNU_SOURCE, which causes glibc 2.38+ (Ubuntu 24.04) to redirect strtol() to __isoc23_strtol(). UE5's sysroot (Rocky Linux 8, glibc 2.17) lacks this symbol, causing an undefined symbol error at link time. Add GlibcCompat.c compiled as C11 (no _GNU_SOURCE, no redirect) that provides __isoc23_strtol/strtoll/strtoul/strtoull as wrappers to the standard glibc functions.
- Detect Ubuntu version in InstallPrerequisites.sh and use libtiff-dev (replacing libtiff5-dev) on 24.04+ - Add --break-system-packages to pip commands on 24.04+ (PEP 668) - Update documentation to list 24.04 as supported - Add CHANGELOG entry Closes #1
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Pull request overview
Adds Ubuntu 24.04 support while keeping Ubuntu 22.04 behavior intact, primarily by updating prerequisite installation logic and adding a glibc compatibility shim to allow linking against UE5’s older sysroot on newer hosts.
Changes:
- Detect Ubuntu version in
InstallPrerequisites.sh, switchlibtiffpackage name for 24.04+, and add pip--break-system-packagesfor 24.04+. - Add a glibc 2.38+ compatibility shim (
__isoc23_strtol/friends) and include it in the LibCarla server build. - Update top-level docs and changelog to list Ubuntu 24.04 as supported.
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| Util/SetupUtils/InstallPrerequisites.sh | Adds Ubuntu version detection to select appropriate apt/pip behavior for 24.04+. |
| README.md | Updates supported OS text to include Ubuntu 24.04. |
| LibCarla/source/carla/GlibcCompat.c | Introduces shim symbols to avoid link failures with UE5’s older glibc sysroot. |
| LibCarla/CMakeLists.txt | Ensures the shim C file is compiled/linked into the carla-server target. |
| CHANGELOG.md | Notes Ubuntu 24.04 support in latest changes. |
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This was referenced Mar 20, 2026
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Description
Add Ubuntu 24.04 support while keeping 22.04 fully working.
Changes:
GlibcCompat.c): Wraps__isoc23_strtoland friends so the UE5 sysroot (glibc 2.17) links correctly on 24.04. Cherry-picked from046993b50.InstallPrerequisites.sh: Detects Ubuntu version; useslibtiff-devinstead oflibtiff5-devon 24.04+; adds--break-system-packagesto pip commands on 24.04+ (PEP 668).Not included (future work):
carlasim/carla-builder:ue5-24.04Docker image)Related #9597
Where has this been tested?
Possible Drawbacks
None expected. All changes are conditional on Ubuntu version detection, so 22.04 behavior is unchanged.
This change is