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fix: add GLIBC version detection to prevent cryptic errors on older Linux #276

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fix: add GLIBC version detection to prevent cryptic errors on older Linux #276

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23 changes: 23 additions & 0 deletions scripts/smolvm-wrapper.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,29 @@ if [[ ! -x "$SMOLVM_BIN" ]]; then
exit 1
fi

# Check GLIBC compatibility on Linux
if [[ "$(uname -s)" == "Linux" ]]; then
# Extract the maximum required GLIBC version from the binary
REQUIRED_GLIBC=$(objdump -T "$SMOLVM_BIN" 2>/dev/null | grep -oP 'GLIBC_\d+\.\d+' | sort -V | tail -1 | sed 's/GLIBC_//')
if [[ -n "$REQUIRED_GLIBC" ]]; then
# Get the system GLIBC version
SYSTEM_GLIBC=$(ldd --version 2>&1 | head -1 | grep -oP '\d+\.\d+' | head -1)
if [[ -n "$SYSTEM_GLIBC" ]]; then
# Compare versions
if [[ "$(printf '%s\n' "$REQUIRED_GLIBC" "$SYSTEM_GLIBC" | sort -V | tail -1)" != "$SYSTEM_GLIBC" ]]; then
echo "Error: smolvm requires GLIBC >= $REQUIRED_GLIBC but your system has GLIBC $SYSTEM_GLIBC" >&2
echo "" >&2
echo "This typically happens on older Linux distributions (e.g., Ubuntu 22.04)." >&2
echo "To resolve:" >&2
echo " 1. Upgrade to Ubuntu 24.04 or newer, or" >&2
echo " 2. Build smolvm from source: https://github.com/smol-machines/smolvm#building-from-source" >&2
echo " 3. Use the smolvm Docker image: docker run --rm -it --privileged smolmachines/smolvm" >&2
exit 1
fi
fi
fi
fi

# Check if libraries exist
if [[ ! -d "$SMOLVM_LIB" ]]; then
echo "Error: library directory not found at $SMOLVM_LIB" >&2
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