Public bug reported:
In a simple default installation of Ubuntu 26.04 and CUDA (via the new
meta package cuda-toolkit), a minimal program fails to compile. The host
compiler libraries are incompatible with the CUDA libraries.
A way to reproduce the issue:
docker run -it ubuntu:26.04
apt update && apt upgrade -y && apt install cuda-toolkit -y
printf "int main() {}" > main.cu
/usr/local/cuda/bin/nvcc main.cu
The error:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h(206): error: exception
specification is incompatible with that of previous function "rsqrt" (declared
at line 629 of
/usr/local/cuda/bin/../targets/x86_64-linux/include/crt/math_functions.h)
extern double rsqrt (double __x) noexcept (true); extern double __rsqrt
(double __x) noexcept (true);
^
/usr/include/x86_64-linux-gnu/bits/mathcalls.h(206): error: exception
specification is incompatible with that of previous function "rsqrtf" (declared
at line 653 of
/usr/local/cuda/bin/../targets/x86_64-linux/include/crt/math_functions.h)
extern float rsqrtf (float __x) noexcept (true); extern float __rsqrtf
(float __x) noexcept (true);
^
2 errors detected in the compilation of "main.cu".
-------------------------------------------------------------
The issue was also discussed here:
https://forums.developer.nvidia.com/t/fedora-43-and-nvcc-cuda13-1-error-
exception-specification-is-incompatible-rsqrt-rsqrtf/354510
Applying the proposed patch in the first post fixes the issue.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: cuda-toolkit 13.1.1-0ubuntu1
ProcVersionSignature: Ubuntu 6.17.0-22.22~24.04.1-generic 6.17.13
Uname: Linux 6.17.0-22-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: unknown
CloudBuildName: ubuntu-oci:minimized
CloudSerial: 20260421
Date: Thu Jun 4 08:36:14 2026
ProcEnviron:
PATH=(custom, no user)
TERM=xterm
SourcePackage: cuda-meta-13-1
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: cuda-meta-13-1 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug cloud-image resolute
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https://bugs.launchpad.net/bugs/2155233
Title:
cuda-toolkit cannot compile minimal example
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