libstdc++: Add missing headers for errno and std::terminate

libstdc++-v3/ChangeLog:

	* include/bits/semaphore_base.h: Include <exception> and <errno.h>.

diff --git a/libstdc++-v3/include/bits/semaphore_base.h b/libstdc++-v3/include/bits/semaphore_base.h
index 4948f0f..9a55978 100644 (file)
--- a/libstdc++-v3/include/bits/semaphore_base.h
+++ b/libstdc++-v3/include/bits/semaphore_base.h
@@ -39,8 +39,10 @@
 #endif // __cpp_lib_atomic_wait
 
 #ifdef _GLIBCXX_HAVE_POSIX_SEMAPHORE
-# include <limits.h>
-# include <semaphore.h>
+# include <exception>  // std::terminate
+# include <cerrno>     // errno, EINTR, EAGAIN etc.
+# include <limits.h>   // SEM_VALUE_MAX
+# include <semaphore.h>        // sem_t, sem_init, sem_wait, sem_post etc.
 #endif
 
 #include <chrono>