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-rw-r--r--src/ipcpd/eth/eth.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/ipcpd/eth/eth.c b/src/ipcpd/eth/eth.c
index 443f3fdb..114cafce 100644
--- a/src/ipcpd/eth/eth.c
+++ b/src/ipcpd/eth/eth.c
@@ -29,6 +29,8 @@
#define _DARWIN_C_SOURCE
#elif defined(__FreeBSD__)
#define __BSD_VISIBLE 1
+#elif defined (__linux__) || defined (__CYGWIN__)
+#define _DEFAULT_SOURCE
#else
#define _POSIX_C_SOURCE 200112L
#endif