diff options
| -rw-r--r-- | src/libexpr/eval.cc | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc index d0bdaf23822a..2b97b76fb776 100644 --- a/src/libexpr/eval.cc +++ b/src/libexpr/eval.cc @@ -170,8 +170,8 @@ EvalState::EvalState() size_t size = 32 * 1024 * 1024; #if HAVE_SYSCONF && defined(_SC_PAGESIZE) && defined(_SC_PHYS_PAGES) long pageSize = sysconf(_SC_PAGESIZE); - long pages = sysconf (_SC_PHYS_PAGES); - if (pageSize != -1 && size != -1) + long pages = sysconf(_SC_PHYS_PAGES); + if (pageSize != -1) size = (pageSize * pages) / 4; // 25% of RAM if (size > maxSize) size = maxSize; #endif @@ -1108,7 +1108,10 @@ bool EvalState::isDerivation(Value & v) { if (v.type != tAttrs) return false; Bindings::iterator i = v.attrs->find(sType); - return i != v.attrs->end() && forceStringNoCtx(*i->value) == "derivation"; + if (i == v.attrs->end()) return false; + forceValue(*i->value); + if (i->value->type != tString) return false; + return forceStringNoCtx(*i->value) == "derivation"; } |