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-rw-r--r--libbuild2/cc/common.cxx5
1 files changed, 5 insertions, 0 deletions
diff --git a/libbuild2/cc/common.cxx b/libbuild2/cc/common.cxx
index 44722c4..2a8bc50 100644
--- a/libbuild2/cc/common.cxx
+++ b/libbuild2/cc/common.cxx
@@ -162,7 +162,12 @@ namespace build2
// Add the library to the chain.
//
if (self && proc_lib)
+ {
+ if (find (chain->begin (), chain->end (), &l) != chain->end ())
+ fail << "dependency cycle detected involving library " << l;
+
chain->push_back (&l);
+ }
// We only lookup public variables so go straight for the public
// variable pool.