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-rw-r--r--libstdc++-v3/include/std/latch2
1 files changed, 2 insertions, 0 deletions
diff --git a/libstdc++-v3/include/std/latch b/libstdc++-v3/include/std/latch
index 7ae9022..0442f09 100644
--- a/libstdc++-v3/include/std/latch
+++ b/libstdc++-v3/include/std/latch
@@ -31,6 +31,8 @@
#pragma GCC system_header
+#include <bits/requires_hosted.h> // concurrency
+
#if __cplusplus > 201703L
#include <bits/atomic_base.h>