diff --git a/unsupported/Eigen/CXX11/src/ThreadPool/Barrier.h b/unsupported/Eigen/CXX11/src/ThreadPool/Barrier.h
index ef5e9ff18..bae68e1fb 100644
--- a/unsupported/Eigen/CXX11/src/ThreadPool/Barrier.h
+++ b/unsupported/Eigen/CXX11/src/ThreadPool/Barrier.h
@@ -18,18 +18,18 @@ namespace Eigen {
 class Barrier {
  public:
   Barrier(unsigned int count) : state_(count << 1), notified_(false) {
-    eigen_assert(((count << 1) >> 1) == count);
+    eigen_plain_assert(((count << 1) >> 1) == count);
   }
   ~Barrier() { eigen_plain_assert((state_ >> 1) == 0); }
 
   void Notify() {
     unsigned int v = state_.fetch_sub(2, std::memory_order_acq_rel) - 2;
     if (v != 1) {
-      eigen_assert(((v + 2) & ~1) != 0);
+      eigen_plain_assert(((v + 2) & ~1) != 0);
       return;  // either count has not dropped to 0, or waiter is not waiting
     }
     std::unique_lock<std::mutex> l(mu_);
-    eigen_assert(!notified_);
+    eigen_plain_assert(!notified_);
     notified_ = true;
     cv_.notify_all();
   }
diff --git a/unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h b/unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h
index 7a71f89fd..7a9ebe40a 100644
--- a/unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h
+++ b/unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h
@@ -51,7 +51,7 @@ class EventCount {
   class Waiter;
 
   EventCount(MaxSizeVector<Waiter>& waiters) : waiters_(waiters) {
-    eigen_assert(waiters.size() < (1 << kWaiterBits) - 1);
+    eigen_plain_assert(waiters.size() < (1 << kWaiterBits) - 1);
     // Initialize epoch to something close to overflow to test overflow.
     state_ = kStackMask | (kEpochMask - kEpochInc * waiters.size() * 2);
   }
@@ -88,7 +88,7 @@ class EventCount {
       // We've already been notified.
       if (int64_t((state & kEpochMask) - epoch) > 0) return;
       // Remove this thread from prewait counter and add it to the waiter list.
-      eigen_assert((state & kWaiterMask) != 0);
+      eigen_plain_assert((state & kWaiterMask) != 0);
       uint64_t newstate = state - kWaiterInc + kEpochInc;
       newstate = (newstate & ~kStackMask) | (w - &waiters_[0]);
       if ((state & kStackMask) == kStackMask)
@@ -119,7 +119,7 @@ class EventCount {
       // We've already been notified.
       if (int64_t((state & kEpochMask) - epoch) > 0) return;
       // Remove this thread from prewait counter.
-      eigen_assert((state & kWaiterMask) != 0);
+      eigen_plain_assert((state & kWaiterMask) != 0);
       if (state_.compare_exchange_weak(state, state - kWaiterInc + kEpochInc,
                                        std::memory_order_relaxed))
         return;
diff --git a/unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h b/unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h
index 8c8ea0ed0..8fafcdab5 100644
--- a/unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h
+++ b/unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h
@@ -42,7 +42,7 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
     // indices as (t + coprime) % num_threads, we will cover all threads without
     // repetitions (effectively getting a presudo-random permutation of thread
     // indices).
-    eigen_assert(num_threads_ < kMaxThreads);
+    eigen_plain_assert(num_threads_ < kMaxThreads);
     for (int i = 1; i <= num_threads_; ++i) {
       all_coprimes_.emplace_back(i);
       ComputeCoprimes(i, &all_coprimes_.back());
@@ -85,7 +85,7 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
   }
 
   void SetStealPartitions(const std::vector<std::pair<unsigned, unsigned>>& partitions) {
-    eigen_assert(partitions.size() == static_cast<std::size_t>(num_threads_));
+    eigen_plain_assert(partitions.size() == static_cast<std::size_t>(num_threads_));
 
     // Pass this information to each thread queue.
     for (int i = 0; i < num_threads_; i++) {
@@ -112,11 +112,11 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
     } else {
       // A free-standing thread (or worker of another pool), push onto a random
       // queue.
-      eigen_assert(start < limit);
-      eigen_assert(limit <= num_threads_);
+      eigen_plain_assert(start < limit);
+      eigen_plain_assert(limit <= num_threads_);
       int num_queues = limit - start;
       int rnd = Rand(&pt->rand) % num_queues;
-      eigen_assert(start + rnd < limit);
+      eigen_plain_assert(start + rnd < limit);
       Queue& q = thread_data_[start + rnd].queue;
       t = q.PushBack(std::move(t));
     }
@@ -182,9 +182,9 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
   }
 
   void AssertBounds(int start, int end) {
-    eigen_assert(start >= 0);
-    eigen_assert(start < end);  // non-zero sized partition
-    eigen_assert(end <= num_threads_);
+    eigen_plain_assert(start >= 0);
+    eigen_plain_assert(start < end);  // non-zero sized partition
+    eigen_plain_assert(end <= num_threads_);
   }
 
   inline void SetStealPartition(size_t i, unsigned val) {
@@ -253,7 +253,7 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
 #ifndef EIGEN_THREAD_LOCAL
     std::unique_ptr<PerThread> new_pt(new PerThread());
     per_thread_map_mutex_.lock();
-    eigen_assert(per_thread_map_.emplace(GlobalThreadIdHash(), std::move(new_pt)).second);
+    eigen_plain_assert(per_thread_map_.emplace(GlobalThreadIdHash(), std::move(new_pt)).second);
     per_thread_map_mutex_.unlock();
     init_barrier_->Notify();
     init_barrier_->Wait();
@@ -337,7 +337,7 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
     unsigned inc = all_coprimes_[size - 1][r % all_coprimes_[size - 1].size()];
 
     for (unsigned i = 0; i < size; i++) {
-      eigen_assert(start + victim < limit);
+      eigen_plain_assert(start + victim < limit);
       Task t = thread_data_[start + victim].queue.PopBack();
       if (t.f) {
         return t;
@@ -371,7 +371,7 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
   // time to exit (returns false). Can optionally return a task to execute in t
   // (in such case t.f != nullptr on return).
   bool WaitForWork(EventCount::Waiter* waiter, Task* t) {
-    eigen_assert(!t->f);
+    eigen_plain_assert(!t->f);
     // We already did best-effort emptiness check in Steal, so prepare for
     // blocking.
     ec_.Prewait(waiter);
diff --git a/unsupported/Eigen/CXX11/src/ThreadPool/RunQueue.h b/unsupported/Eigen/CXX11/src/ThreadPool/RunQueue.h
index 05c739aa1..73928c1d4 100644
--- a/unsupported/Eigen/CXX11/src/ThreadPool/RunQueue.h
+++ b/unsupported/Eigen/CXX11/src/ThreadPool/RunQueue.h
@@ -39,9 +39,9 @@ class RunQueue {
  public:
   RunQueue() : front_(0), back_(0) {
     // require power-of-two for fast masking
-    eigen_assert((kSize & (kSize - 1)) == 0);
-    eigen_assert(kSize > 2);            // why would you do this?
-    eigen_assert(kSize <= (64 << 10));  // leave enough space for counter
+    eigen_plain_assert((kSize & (kSize - 1)) == 0);
+    eigen_plain_assert(kSize > 2);            // why would you do this?
+    eigen_plain_assert(kSize <= (64 << 10));  // leave enough space for counter
     for (unsigned i = 0; i < kSize; i++)
       array_[i].state.store(kEmpty, std::memory_order_relaxed);
   }
@@ -137,7 +137,7 @@ class RunQueue {
       } else {
         // Note: no need to store temporal kBusy, we exclusively own these
         // elements.
-        eigen_assert(s == kReady);
+        eigen_plain_assert(s == kReady);
       }
       result->push_back(std::move(e->w));
       e->state.store(kEmpty, std::memory_order_release);
diff --git a/unsupported/Eigen/src/MatrixFunctions/MatrixExponential.h b/unsupported/Eigen/src/MatrixFunctions/MatrixExponential.h
index 8aebcd67a..77cbedcc2 100644
--- a/unsupported/Eigen/src/MatrixFunctions/MatrixExponential.h
+++ b/unsupported/Eigen/src/MatrixFunctions/MatrixExponential.h
@@ -314,7 +314,7 @@ struct matrix_exp_computeUV<MatrixType, long double>
       matrix_exp_pade17(A, U, V);
     }
   
-#elif LDBL_MANT_DIG <= 112  // quadruple precision
+#elif LDBL_MANT_DIG <= 113  // quadruple precision
   
     if (l1norm < 1.639394610288918690547467954466970e-005L) {
       matrix_exp_pade3(arg, U, V);
@@ -347,7 +347,7 @@ struct matrix_exp_computeUV<MatrixType, long double>
 template<typename T> struct is_exp_known_type : false_type {};
 template<> struct is_exp_known_type<float> : true_type {};
 template<> struct is_exp_known_type<double> : true_type {};
-#if LDBL_MANT_DIG <= 112
+#if LDBL_MANT_DIG <= 113
 template<> struct is_exp_known_type<long double> : true_type {};
 #endif