ircd: Add visibility pragma in stdinc.h

include/ircd/asio.h

@@ -26,6 +26,7 @@
 
 #define BOOST_COROUTINES_NO_DEPRECATION_WARNING
 
+#pragma GCC visibility push(default)
 #include <boost/version.hpp>
 #include <boost/config.hpp>
 #include <boost/asio.hpp>
@@ -33,6 +34,7 @@
 #include <boost/asio/steady_timer.hpp>
 #include <boost/asio/spawn.hpp>
 #include <boost/asio/io_service.hpp>
+#pragma GCC visibility pop
 
 ///
 /// The following IRCd headers are not included in the main stdinc.h list of

include/ircd/stdinc.h

@@ -20,6 +20,10 @@
 // pollution and risk of conflicts.
 //
 
+// It is advised that all standard library symbols are declared with default
+// visibility. This pragma overrides any -fvisibility option on any unit.
+#pragma GCC visibility push(default)
+
 extern "C"
 {
 	#include <RB_INC_ASSERT_H
@@ -191,3 +195,5 @@ namespace ircd
 
 	using std::error_code;
 }
+
+#pragma GCC visibility pop // default