nixpkgs/pkgs/build-support/setup-hooks/audit-blas.sh

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# Ensure that we are always linking against “libblas.so.3” and
# “liblapack.so.3”.
auditBlas() {
local dir="$prefix"
[ -e "$dir" ] || return 0
local i
while IFS= read -r -d $'\0' i; do
if ! isELF "$i"; then continue; fi
if $OBJDUMP -p "$i" | grep 'NEEDED' | awk '{ print $2; }' | grep -q '\(libmkl_rt.so\|libopenblas.so.0\)'; then
echo "$i refers to a specific implementation of BLAS or LAPACK."
echo "This prevents users from switching BLAS/LAPACK implementations."
echo "Add \`blas' or \`lapack' to buildInputs instead of \`mkl' or \`openblas'."
exit 1
fi
(IFS=:
for dir in "$(patchelf --print-rpath "$i")"; do
if [ -f "$dir/libblas.so.3" ] || [ -f "$dir/libblas.so" ]; then
if [ "$dir" != "@blas@/lib" ]; then
echo "$dir is not allowed to contain a library named libblas.so.3"
exit 1
fi
fi
if [ -f "$dir/liblapack.so.3" ] || [ -f "$dir/liblapack.so" ]; then
if [ "$dir" != "@lapack@/lib" ]; then
echo "$dir is not allowed to contain a library named liblapack.so.3"
exit 1
fi
fi
done)
done < <(find "$dir" -type f -print0)
}
fixupOutputHooks+=(auditBlas)