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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 5d5e9efcfec5..020a7135b66c 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -32,5 +32,8 @@ extern bool keepFailed;
 /* Verbosity level for build output. */
 extern Verbosity buildVerbosity;
 
+/* Maximum number of parallel build jobs.  0 means unlimited. */
+extern unsigned int maxBuildJobs;
+
 
 #endif /* !__GLOBALS_H */