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-rw-r--r--gcc/config/vxworksae.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/config/vxworksae.h b/gcc/config/vxworksae.h
index d29b465eda0..6e1efa93c40 100644
--- a/gcc/config/vxworksae.h
+++ b/gcc/config/vxworksae.h
@@ -56,6 +56,9 @@ along with GCC; see the file COPYING3. If not see
#define VXWORKS_KIND VXWORKS_KIND_AE
+/* Both kernels and RTPs have the facilities required by this macro. */
+#define TARGET_POSIX_IO
+
/* A VxWorks 653 implementation of TARGET_OS_CPP_BUILTINS. */
#define VXWORKS_OS_CPP_BUILTINS() \
do \