Index: /issm/trunk-jpl/src/c/Makefile.am
===================================================================
--- /issm/trunk-jpl/src/c/Makefile.am	(revision 12583)
+++ /issm/trunk-jpl/src/c/Makefile.am	(revision 12584)
@@ -188,4 +188,5 @@
 					./shared/Numerics/cross.cpp\
 					./shared/Numerics/isnan.h\
+					./shared/Numerics/isnan.cpp\
 					./shared/Numerics/extrema.cpp\
 					./shared/Numerics/XZvectorsToCoordinateSystem.cpp\
@@ -1022,5 +1023,5 @@
 
 #External packages
-LDADD += $(PETSCLIB) $(TAOLIB) $(PLAPACKLIB) $(MUMPSLIB) $(SCALAPACKLIB) $(BLACSLIB) $(HYPRELIB) $(MLLIB) $(DAKOTALIB) $(METISLIB) $(CHACOLIB) $(SCOTCHLIB) $(BLASLAPACKLIB) $(MKLLIB) $(MPILIB) $(MATHLIB) $(FORTRANLIB) $(GRAPHICSLIB) $(MULTITHREADINGLIB) $(OSLIBS) $(GSLLIB)
+LDADD += $(PETSCLIB) $(TAOLIB) $(PLAPACKLIB) $(MUMPSLIB) $(SCALAPACKLIB) $(BLACSLIB) $(HYPRELIB) $(MLLIB) $(DAKOTALIB) $(METISLIB) $(CHACOLIB) $(SCOTCHLIB) $(BLASLAPACKLIB) $(MKLLIB) $(MPILIB) $(MATHLIB) $(FORTRANLIB) $(GRAPHICSLIB) $(MULTITHREADINGLIB) $(OSLIBS) $(GSLLIB) $(ADOLCLIB)
 
 if FORTRAN