[Minor] Check version header that is absent sometimes

diff --git a/src/libserver/symcache/symcache_impl.cxx b/src/libserver/symcache/symcache_impl.cxx
index 8ffc55db0b68eeabcd02dce309a54462bcbedb1c..28db9aaa997d4e6d8f89178943f2efc15c8b26bf 100644 (file)
--- a/src/libserver/symcache/symcache_impl.cxx
+++ b/src/libserver/symcache/symcache_impl.cxx
@@ -24,7 +24,11 @@
 #include "fmt/core.h"
 #include "contrib/t1ha/t1ha.h"
 
-#include <version>
+#ifdef __has_include
+# if __has_include(<version>)
+#   include <version>
+# endif
+#endif
 #include <cmath>
 
 namespace rspamd::symcache {