Problem with archive_read_next_header(): Pathname cannot be converted from UTF-8 to current locale when building in Ubuntu 26.04 container

[adelton]

Description of the bug

I try to follow the https://github.com/prusa3d/PrusaSlicer/blob/master/doc/Build.md to try to build PrusaSlicer 3.0.0-alpha11 based on the documented steps, before attempting to update Fedora's https://src.fedoraproject.org/rpms/prusa-slicer to package 3.0.0 as an rpm.

I use containers with podman to easily get specific operating system environment, and since doc/Build.md shows the apt install example for Ubuntu 26.04, I started

$ podman run --rm -ti ubuntu:26.04

I then copied the source .tar.gz to the container, unpackaged it, and done

# apt update
# apt install -y git build-essential autoconf cmake libglu1-mesa-dev libgtk-3-dev libdbus-1-dev libwebkit2gtk-4.1-dev texinfo

# cd deps
# mkdir build
# cd build
# cmake ..
# cmake --build .

The last command failed with

-- verifying file...
       file='/tmp/PrusaSlicer-version_3.0.0-alpha11/deps/build/downloads/Boost/boost-1.86.0-cmake.zip'
-- Downloading... done
-- extracting...
     src='/tmp/PrusaSlicer-version_3.0.0-alpha11/deps/build/downloads/Boost/boost-1.86.0-cmake.zip'
     dst='/tmp/PrusaSlicer-version_3.0.0-alpha11/deps/build/dep_Boost-prefix/src/dep_Boost'
-- extracting... [tar xf]
CMake Error: Problem with archive_read_next_header(): Pathname cannot be converted from UTF-8 to current locale.
CMake Error: Problem extracting tar: /tmp/PrusaSlicer-version_3.0.0-alpha11/deps/build/downloads/Boost/boost-1.86.0-cmake.zip
-- extracting... [error clean up]
CMake Error at dep_Boost-stamp/extract-dep_Boost.cmake:40 (message):
  Extract of
  '/tmp/PrusaSlicer-version_3.0.0-alpha11/deps/build/downloads/Boost/boost-1.86.0-cmake.zip'
  failed


gmake[2]: *** [CMakeFiles/dep_Boost.dir/build.make:101: dep_Boost-prefix/src/dep_Boost-stamp/dep_Boost-download] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:266: CMakeFiles/dep_Boost.dir/all] Error 2
gmake: *** [Makefile:136: all] Error 2

Zipped project file & How to reproduce

No 3mf, this is a build issue.

Version of PrusaSlicer

3.0.0-alpha11

Operating system

Linux

Operating system version

ubuntu:26.04 container

Printer model

N/A

[adelton]

Running locale in the container shows

LANG=
LANGUAGE=
LC_CTYPE="POSIX"
LC_NUMERIC="POSIX"
LC_TIME="POSIX"
LC_COLLATE="POSIX"
LC_MONETARY="POSIX"
LC_MESSAGES="POSIX"
LC_PAPER="POSIX"
LC_NAME="POSIX"
LC_ADDRESS="POSIX"
LC_TELEPHONE="POSIX"
LC_MEASUREMENT="POSIX"
LC_IDENTIFICATION="POSIX"
LC_ALL=

It seems something like export LC_ALL=C.UTF-8 is needed.

[adelton]

A possible way to address this is to just document the necessary locales settings, shown in #15740.

[lukasmatena]

Fixed in alpha12. Closing.