diff --git a/cc/config/global.go b/cc/config/global.go
index 4277bcf..a2d5cf4 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -321,6 +321,9 @@
 	}
 
 	VersionScriptFlagPrefix = "-Wl,--version-script,"
+
+	VisibilityHiddenFlag  = "-fvisibility=hidden"
+	VisibilityDefaultFlag = "-fvisibility=default"
 )
 
 // BazelCcToolchainVars generates bzl file content containing variables for
@@ -411,6 +414,9 @@
 
 	exportedVars.ExportString("VersionScriptFlagPrefix", VersionScriptFlagPrefix)
 
+	exportedVars.ExportString("VisibilityHiddenFlag", VisibilityHiddenFlag)
+	exportedVars.ExportString("VisibilityDefaultFlag", VisibilityDefaultFlag)
+
 	// Everything in these lists is a crime against abstraction and dependency tracking.
 	// Do not add anything to this list.
 	commonGlobalIncludes := []string{