sagemathgh-36671: build/pkgs/openblas: Stop openblas from using expli…

…cit `make -j N`; but use `make -j 1` on `ubuntu-trusty`

    
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OpenMathLib/OpenBLAS#828

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Fixes part of
sagemath#34899 (comment)

Tests at https://github.com/mkoeppe/sage/actions/runs/6779033300:
openblas finishes successfully in https://github.com/mkoeppe/sage/action
s/runs/6779033300/job/18425453802#step:11:3863
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URL: sagemath#36671
Reported by: Matthias Köppe
Reviewer(s): John H. Palmieri, Matthias Köppe

build/pkgs/openblas/spkg-install.in

@@ -34,10 +34,18 @@ fi
 
 echo "Building OpenBLAS: $MAKE $OPENBLAS_CONFIGURE"
 
+if $MAKE --version | grep -q -F '3.81'; then
+    # Work around https://savannah.gnu.org/bugs/?15919
+    OPENBLAS_CONFIGURE+=" MAKE_NB_JOBS=1"
+else
+    # Do not emit "-j" options; use jobserver
+    OPENBLAS_CONFIGURE+=" MAKE_NB_JOBS=0"
+fi
+
 # Ensure USE_TLS=1 ; see https://github.com/sagemath/sage/issues/27256
 OPENBLAS_CONFIGURE="$OPENBLAS_CONFIGURE USE_TLS=1"
 
-if ! (sdh_make libs netlib shared $OPENBLAS_CONFIGURE); then
+if ! (sdh_make libs $OPENBLAS_CONFIGURE && sdh_make netlib $OPENBLAS_CONFIGURE && sdh_make shared $OPENBLAS_CONFIGURE); then
     if [[ $OPENBLAS_CONFIGURE == *"TARGET"* ]]; then
         sdh_die "Error building OpenBLAS"
     else
@@ -47,7 +55,7 @@ if ! (sdh_make libs netlib shared $OPENBLAS_CONFIGURE); then
         echo "Error building OpenBLAS"
         echo "Retrying building OpenBLAS: $MAKE $OPENBLAS_CONFIGURE"
         sdh_make clean
-        sdh_make libs netlib shared $OPENBLAS_CONFIGURE
+        sdh_make libs $OPENBLAS_CONFIGURE && sdh_make netlib $OPENBLAS_CONFIGURE && sdh_make shared $OPENBLAS_CONFIGURE
     fi
 fi