diff --git a/coreneuron/sim/scopmath/crout_thread.cpp b/coreneuron/sim/scopmath/crout_thread.cpp
index 55c64c0b5..b180ea107 100644
--- a/coreneuron/sim/scopmath/crout_thread.cpp
+++ b/coreneuron/sim/scopmath/crout_thread.cpp
@@ -42,10 +42,6 @@
 /*  Functions called: makevector(), freevector()		*/
 /*                                                              */
 /*--------------------------------------------------------------*/
-
-#if defined(__PGI) && defined(_OPENACC)
-#include "accelmath.h"
-#endif
 #include <cmath>
 #include "coreneuron/mechanism/mech/cfile/scoplib.h"
 #include "coreneuron/sim/scopmath/newton_struct.h"
diff --git a/coreneuron/sim/scopmath/sparse_thread.cpp b/coreneuron/sim/scopmath/sparse_thread.cpp
index 2c57e77b0..75fbed5b4 100644
--- a/coreneuron/sim/scopmath/sparse_thread.cpp
+++ b/coreneuron/sim/scopmath/sparse_thread.cpp
@@ -6,10 +6,6 @@
  *   Duke University
  *
  ******************************************************************************/
-
-#if defined(__PGI) && defined(_OPENACC)
-#include "accelmath.h"
-#endif
 #include <stdlib.h>
 #include "coreneuron/mechanism/mech/cfile/scoplib.h"
 #include "coreneuron/mechanism/mech/mod2c_core_thread.hpp" /* _threadargs, _STRIDE, etc. */
diff --git a/external/mod2c b/external/mod2c
index bcf471291..9c1ca6ed3 160000
--- a/external/mod2c
+++ b/external/mod2c
@@ -1 +1 @@
-Subproject commit bcf471291ed615e3d2df7e06f0a27aa38888cff4
+Subproject commit 9c1ca6ed3fcefad9230b4cdf2f5e7fde6cce6d08
diff --git a/external/nmodl b/external/nmodl
index b0fe32791..85dec3618 160000
--- a/external/nmodl
+++ b/external/nmodl
@@ -1 +1 @@
-Subproject commit b0fe32791c3ac3949f14ad70eeeaf32cf9bc431e
+Subproject commit 85dec36180cc8d012db3392c06c065d39de79960