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-rw-r--r--configure.ac2
1 files changed, 2 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 2b612dce6e9..f5cce5830bc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3071,7 +3071,9 @@ esac
# These force 'configure's to be done one at a time, to avoid problems
# with contention over a shared config.cache.
rm -f serdep.tmp
+if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
echo '# serdep.tmp' > serdep.tmp
+fi
olditem=
test "x${enable_serial_build_configure}" = xyes &&
for item in ${build_configdirs} ; do