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-rw-r--r--src/OS/os.h-OpenBSD4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/OS/os.h-OpenBSD b/src/OS/os.h-OpenBSD
index 35eddd5a5..5d55a967e 100644
--- a/src/OS/os.h-OpenBSD
+++ b/src/OS/os.h-OpenBSD
@@ -23,4 +23,8 @@ typedef struct __res_state *res_state;
/* default is non-const */
#define ICONV_ARG2_TYPE const char **
+#ifndef EPROTO
+# define EPROTO 71
+#endif
+
/* End */