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-rw-r--r--configure.ac3
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 5779d2d584..23cbd5b7f7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -192,6 +192,9 @@ dnl Need netinet/tcp.h for TCP_FASTOPEN
AC_CHECK_HEADERS([netinet/tcp.h])
AC_CHECK_HEADERS([stdatomic.h])
+dnl We use its presence to detect C11 threads
+AC_CHECK_HEADERS([threads.h])
+
AC_ARG_ENABLE(padlock,
AS_HELP_STRING([--disable-padlock], [unconditionally disable padlock acceleration]),
use_padlock=$enableval)