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-rw-r--r--src/libstore/globals.hh3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index b5de709f7b54..408076b751e7 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -53,6 +53,9 @@ extern unsigned int maxBuildJobs;
    database. */
 extern bool readOnlyMode;
 
+/* The canonical system name, as returned by config.guess. */ 
+extern string thisSystem;
+
 
 Strings querySetting(const string & name, const Strings & def);