diff --git a/util/build-gnu.sh b/util/build-gnu.sh
index 0256cfccf..4f02e8425 100755
--- a/util/build-gnu.sh
+++ b/util/build-gnu.sh
@@ -73,25 +73,25 @@ make -j "$(nproc)"
 # Handle generated factor tests
 t_first=00
 t_max=36
-t_max_release=20
-if test "${UU_MAKE_PROFILE}" != "debug"; then
-    # Generate the factor tests, so they can be fixed
-    # * reduced to 20 to decrease log size (down from 36 expected by GNU)
-    # * only for 'release', skipped for 'debug' as redundant and too time consuming (causing timeout errors)
-    seq=$(
-        i=${t_first}
-        while test "${i}" -le "${t_max_release}"; do
-            printf '%02d ' $i
-            i=$((i + 1))
-        done
-    )
-    for i in ${seq}; do
-        make "tests/factor/t${i}.sh"
-    done
-    cat
-    sed -i -e 's|^seq |/usr/bin/seq |' -e 's|sha1sum |/usr/bin/sha1sum |' tests/factor/t*.sh
-    t_first=$((t_max_release + 1))
-fi
+# t_max_release=20
+# if test "${UU_MAKE_PROFILE}" != "debug"; then
+#     # Generate the factor tests, so they can be fixed
+#     # * reduced to 20 to decrease log size (down from 36 expected by GNU)
+#     # * only for 'release', skipped for 'debug' as redundant and too time consuming (causing timeout errors)
+#     seq=$(
+#         i=${t_first}
+#         while test "${i}" -le "${t_max_release}"; do
+#             printf '%02d ' $i
+#             i=$((i + 1))
+#         done
+#     )
+#     for i in ${seq}; do
+#         make "tests/factor/t${i}.sh"
+#     done
+#     cat
+#     sed -i -e 's|^seq |/usr/bin/seq |' -e 's|sha1sum |/usr/bin/sha1sum |' tests/factor/t*.sh
+#     t_first=$((t_max_release + 1))
+# fi
 # strip all (debug) or just the longer (release) factor tests from Makefile
 seq=$(
     i=${t_first}