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-rw-r--r--unix/configure.in6
1 files changed, 6 insertions, 0 deletions
diff --git a/unix/configure.in b/unix/configure.in
index 6c7cc09..9c93024 100644
--- a/unix/configure.in
+++ b/unix/configure.in
@@ -479,6 +479,12 @@ if test $tcl_cv_putenv_copy = yes; then
fi
#--------------------------------------------------------------------
+# Check for support of usleep function
+#--------------------------------------------------------------------
+
+SC_ENABLE_USLEEP
+
+#--------------------------------------------------------------------
# Check for support of nl_langinfo function
#--------------------------------------------------------------------