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-rw-r--r--hints/os390.sh4
1 files changed, 4 insertions, 0 deletions
diff --git a/hints/os390.sh b/hints/os390.sh
index 42bceecc54..8fe573e48f 100644
--- a/hints/os390.sh
+++ b/hints/os390.sh
@@ -252,3 +252,7 @@ d_attribute_warn_unused_result='undef'
# (C++ but C99 math agrees)
# XXX: Configure scan for proper behavior
d_nan='undef'
+
+# Configures says this exists, but it doesn't work properly. See
+# <54DCE073.4010100@khwilliamson.com>
+d_dir_dd_fd='undef'