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-rw-r--r--libstdc++-v3/src/c++11/condition_variable.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/libstdc++-v3/src/c++11/condition_variable.cc b/libstdc++-v3/src/c++11/condition_variable.cc
index c2768eb..d3c7fcd 100644
--- a/libstdc++-v3/src/c++11/condition_variable.cc
+++ b/libstdc++-v3/src/c++11/condition_variable.cc
@@ -23,6 +23,7 @@
// <http://www.gnu.org/licenses/>.
#include <condition_variable>
+#include <cstdlib>
#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)