Referenced at (1) not found in module in macbook monterey - gfortran

Question

I tried to compile the code https://github.com/msg-byu/enumlib using gfortran on my macbook. However, it showed the following error.
use io_utils, only: co_ca
1
Error: Symbol ‘co_ca’ referenced at (1) not found in module ‘io_utils’
make: *** [makeStr.o] Error 1
I tried to add -cpp flag but it did not worked. Could you please help me out?
Here is the Makefile.
When I added co_ca to define in public, it worked but showed some warnings like the following:
gfortran -fPIC -g -fbounds-check -Wall -ffree-line-length-none -fno-underscoring -I../symlib/src -c io_utils.f90
io_utils.f90:52:98:
52 | subroutine read_struct_enum_out(title,LatDim,pLV,nD,d,k,eq,Nmin,Nmax,eps,full,label,digit,cRange,fname)
| 1
Warning: Unused dummy argument ‘crange’ at (1) [-Wunused-dummy-argument]
gfortran -fPIC -g -fbounds-check -Wall -ffree-line-length-none -fno-underscoring -I../symlib/src -c arrow_related.f90
gfortran -fPIC -g -fbounds-check -Wall -ffree-line-length-none -fno-underscoring -I../symlib/src -c tree_class.f90
tree_class.f90:483:18:
483 | index = index + binomial(nLeft-site_i, count(new_labeling(site_i:)==1)-1)
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
tree_class.f90:224:14:
224 | I = I - nchoosek(ell-1,t-1)
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
tree_class.f90:110:37:
110 | self%branches(species_i) = nchoosek(sum(self%colors(species_i:)),self%colors(species_i))
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
gfortran -fPIC -g -fbounds-check -Wall -ffree-line-length-none -fno-underscoring -I../symlib/src -c labeling_related.f90
labeling_related.f90:1624:9:
1624 | nl = multinomial(iConc)
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
labeling_related.f90:1550:18:
1550 | count = count + (-1)**p*nchoosek(m,p)*tc
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
labeling_related.f90:942:8:
942 | x = idx
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
labeling_related.f90:946:14:
946 | bnml = binomial(i-1,t-1)
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
labeling_related.f90:918:21:
918 | xTemp = xTemp + binomial(nLeft - iM, count(mask(iM:)==1)-1)
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
labeling_related.f90:888:15:
888 | C(iK) = binomial(nLeft,conc(iK))
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
labeling_related.f90:727:20:
727 | quot = labIndx/multiplier(ilab) ! How many times does k(i) divide the number
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
labeling_related.f90:310:83:
310 | SUBROUTINE generate_permutation_labelings(k,n,nD,perm,lab,iConc,parLabel,parDigit,degeneracy_list,fixed_cells)
| 1
Warning: Unused dummy argument ‘pardigit’ at (1) [-Wunused-dummy-argument]
labeling_related.f90:58:64:
58 | SUBROUTINE recursively_stabilized_enum(perm,conc,symsize,knary,SNF,LT,HNF,HNFcnt,hnf_degen,nfound,scount,fixOp,iBlock,equivalencies,inactives,permIndx,allowed,fixedcell,aperms)
| 1
Warning: Unused dummy argument ‘knary’ at (1) [-Wunused-dummy-argument]
labeling_related.f90:1487:35:
1487 | SUBROUTINE make_translation_group(d,trans)
| ^
Warning: ‘make_translation_group’ defined but not used [-Wunused-function]
labeling_related.f90:1583:52:
1583 | SUBROUTINE generate_disjoint_permutation_labelings(k,n,nD,perm,lab,iConc,parLabel,parDigit)
| ^
Warning: ‘generate_disjoint_permutation_labelings’ defined but not used [-Wunused-function]
gfortran -fPIC -g -fbounds-check -Wall -ffree-line-length-none -fno-underscoring -I../symlib/src -c enumeration_routines.f90
gfortran -fPIC -g -fbounds-check -Wall -ffree-line-length-none -fno-underscoring -I../symlib/src -c derivative_structure_generator.f90
derivative_structure_generator.f90:1600:17:
1600 | size_count = size_count + this_count*nHNF
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
derivative_structure_generator.f90:1601:18:
1601 | total_count = total_count + this_count*nHNF
| 1
Warning: Possible change of value in conversion from INTEGER(8) to INTEGER(4) at (1) [-Wconversion]
gfortran -fPIC -g -fbounds-check -Wall -ffree-line-length-none -fno-underscoring -I../symlib/src -c enumeration_utilities.f90
enumeration_utilities.f90:86:57:
86 | if (minkowskiReduce) call minkowski_reduce_basis(sLV,sLV,eps)
| 1
Warning: Same actual argument associated with INTENT(OUT) argument ‘out’ and INTENT(IN) argument ‘in’ at (1)
ar ru libenum.a sorting.o enumeration_types.o io_utils.o arrow_related.o tree_class.o labeling_related.o enumeration_routines.o derivative_structure_generator.o enumeration_utilities.o
ar: creating archive libenum.a
ranlib libenum.a
gfortran -fPIC -g -fbounds-check -Wall -ffree-line-length-none -fno-underscoring -I../symlib/src -c ../aux_src/makeStr.f90
../aux_src/makeStr.f90:13:67:
13 | integer ioerr, iline, ic, i, ilab, pgOps, nD, hnfN, iAt, jAt, iSpec, nSpec, idx, foutput_unit
| 1
Warning: Unused variable ‘ispec’ declared at (1) [-Wunused-variable]
gfortran -o makestr.x makeStr.o libenum.a ../symlib/src/libcomparestructs.a ../symlib/src/libutils.a ../symlib/src/libsym.a ../symlib/src/librational.a ../symlib/src/libcombinatorics.a

Answer 1

Well as long as the people from the repository haven't reacted, probably the best solution for you at this moment is to adjust your local code.
In the file src/io_utils.f90 you could change the lines (currently in master 11 and 12):
public read_input, write_lattice_symmetry_ops, write_rotperms_list, read_in_cells_from_file, &
read_struct_enum_out, read_arrows, check_for_fixed_cells
to
public read_input, write_lattice_symmetry_ops, write_rotperms_list, read_in_cells_from_file, &
read_struct_enum_out, read_arrows, check_for_fixed_cells, co_ca
so just add co_ca to the current master line 12.
Disclaimer: I didn't compile the project.