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Diffstat (limited to 'lib/prefix.h')
-rw-r--r--lib/prefix.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/prefix.h b/lib/prefix.h
index b2f3b0592f..6f1c219ba8 100644
--- a/lib/prefix.h
+++ b/lib/prefix.h
@@ -315,10 +315,12 @@ struct prefix_sg {
#ifndef __cplusplus
#define prefixtype(uname, typename, fieldname) \
typename *fieldname;
+#define TRANSPARENT_UNION __attribute__((transparent_union))
#else
#define prefixtype(uname, typename, fieldname) \
typename *fieldname; \
uname(typename *x) { this->fieldname = x; }
+#define TRANSPARENT_UNION
#endif
union prefixptr {
@@ -328,7 +330,7 @@ union prefixptr {
prefixtype(prefixptr, struct prefix_evpn, evp)
prefixtype(prefixptr, struct prefix_fs, fs)
prefixtype(prefixptr, struct prefix_rd, rd)
-} __attribute__((transparent_union));
+} TRANSPARENT_UNION;
union prefixconstptr {
prefixtype(prefixconstptr, const struct prefix, p)
@@ -337,7 +339,10 @@ union prefixconstptr {
prefixtype(prefixconstptr, const struct prefix_evpn, evp)
prefixtype(prefixconstptr, const struct prefix_fs, fs)
prefixtype(prefixconstptr, const struct prefix_rd, rd)
-} __attribute__((transparent_union));
+} TRANSPARENT_UNION;
+
+#undef prefixtype
+#undef TRANSPARENT_UNION
#ifndef INET_ADDRSTRLEN
#define INET_ADDRSTRLEN 16