Index: cad/calculix-ccx/files/patch-Makefile
===================================================================
--- cad/calculix-ccx/files/patch-Makefile	(revision 521492)
+++ cad/calculix-ccx/files/patch-Makefile	(working copy)
@@ -1,10 +1,11 @@
 --- Makefile.orig	2019-11-25 17:54:53 UTC
 +++ Makefile
-@@ -1,9 +1,9 @@
+@@ -1,9 +1,10 @@
  
 -CFLAGS = -Wall -O2  -I ../../../SPOOLES.2.2 -DARCH="Linux" -DSPOOLES -DARPACK -DMATRIXSTORAGE -DNETWORKOUT
 -FFLAGS = -Wall -O2 
-+CFLAGS += -O2 -I%%LOCALBASE%%/include -I%%LOCALBASE%%/include/spooles -DARCH="FreeBSD" -DSPOOLES -DARPACK -DMATRIXSTORAGE -DNETWORKOUT -DTAUCS
++CFLAGS += -O2 -I%%LOCALBASE%%/include -I%%LOCALBASE%%/include/spooles -DARCH="FreeBSD" -DSPOOLES -DARPACK -DMATRIXSTORAGE -DNETWORKOUT \
++	  -DUSE_MT=1 -DTAUCS
 +FFLAGS += -O2 
  
 -CC=cc
@@ -14,7 +15,7 @@
  
  .c.o :
  	$(CC) $(CFLAGS) -c $<
-@@ -21,12 +21,12 @@ OCCXMAIN = $(SCCXMAIN:.c=.o)
+@@ -21,12 +22,12 @@ OCCXMAIN = $(SCCXMAIN:.c=.o)
  DIR=../../../SPOOLES.2.2
  
  LIBS = \
Index: cad/calculix-ccx/pkg-descr
===================================================================
--- cad/calculix-ccx/pkg-descr	(revision 521491)
+++ cad/calculix-ccx/pkg-descr	(working copy)
@@ -10,3 +10,7 @@
 Results obtained from CalculiX are in no way connected to ABAQUS.
 
 WWW: http://www.calculix.de
+
+Spooles option: by default the single-threaded solver is used unless you
+set the CCX_NPROC_EQUATION_SOLVER environment variable with the number of
+cores you want to use.