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-rw-r--r--libstdc++-v3/libmath/mathconf.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/libstdc++-v3/libmath/mathconf.h b/libstdc++-v3/libmath/mathconf.h
index 1e874990dd1..087631a5687 100644
--- a/libstdc++-v3/libmath/mathconf.h
+++ b/libstdc++-v3/libmath/mathconf.h
@@ -34,6 +34,9 @@
# include <endian.h>
#else
# ifdef HAVE_MACHINE_ENDIAN_H
+# ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+# endif
# include <machine/endian.h>
# else
# ifdef HAVE_SYS_MACHINE_H