python3Packages.astropy: fix OMP_NUM_THREADS going 0

2026-01-21 17:32:24 +01:00
parent e09e378ad0
commit 87c6c6cd4f
1 changed files with 4 additions and 0 deletions
@@ -147,6 +147,10 @@ buildPythonPackage rec {
  preCheck = ''
    export HOME="$(mktemp -d)"
    export OMP_NUM_THREADS=$(( $NIX_BUILD_CORES / 4 ))
+    if [ $OMP_NUM_THREADS -eq 0 ]; then
+      export OMP_NUM_THREADS=1
+    fi
+
    # See https://github.com/astropy/astropy/issues/17649 and see
    # --hypothesis-profile=ci pytest flag below.
    cp conftest.py $out/