Hi,

I am trying to compile a new Kranc thorn on a MacBook Pro (Sierra) and am getting an error

COMPILING arrangements/Carpet/CarpetLib/src/prolongate_3d_real8_tvd.F90

gfortran: warning: couldn’t understand kern.osversion ‘16.1.0

/Users/Guy/Documents/Einsteintoolkit/Cactus/configs/kranc/build/CarpetLib/prolongate_3d_real8_tvd.f90:128.11:

           CHKIDX (i0  ,j0  ,k0  , srciext,srcjext,srckext, "src")

           1

Error: Unclassifiable statement at (1)

/Users/Guy/Documents/Einsteintoolkit/Cactus/configs/kranc/build/CarpetLib/prolongate_3d_real8_tvd.f90:129.11:

           CHKIDX (i0+2,j0+2,k0+2, srciext,srcjext,srckext, "src")

           1

Error: Unclassifiable statement at (1)

/Users/Guy/Documents/Einsteintoolkit/Cactus/configs/kranc/build/CarpetLib/prolongate_3d_real8_tvd.f90:170.11:

           CHKIDX (dstioff+i+1, dstjoff+j+1, dstkoff+k+1, dstiext,dstjext,dstke

           1

Error: Unclassifiable statement at (1)

make[4]: *** [prolongate_3d_real8_tvd.F90.o] Error 1

make[3]: *** [make.checked] Error 2

make[2]: *** [/Users/Guy/Documents/Einsteintoolkit/Cactus/configs/kranc/lib/libthorn_CarpetLib.a] Error 2

make[1]: *** [kranc] Error 2

make: *** [kranc-config] Error 2

I previously installed the simple example for OSX and that ran OK.  

The attached file contains the ThornList that I am using. 

<kranc.th>

Do you have any suggestions?