* installing *source* package ‘PRTree’ ...
** package ‘PRTree’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C compiler: ‘gcc-14 (GCC) 14.2.0’
using Fortran compiler: ‘GNU Fortran (GCC) 14.2.0’
make[2]: Entering directory '/data/gannet/ripley/R/packages/tests-f2008/PRTree/src'
gcc-14 -I"/data/gannet/ripley/R/R-devel/include" -DNDEBUG   -I/usr/local/include    -fpic  -g -O2 -Wall -pedantic -mtune=native -Wp,-D_FORTIFY_SOURCE=3 -fexceptions -fstack-protector-strong -fstack-clash-protection -fcf-protection -Werror=implicit-function-declaration -Wstrict-prototypes  -c PRTree_init.c -o PRTree_init.o
gfortran-14  -fpic  -g -O2 -mtune=native -std=f2018 -c  base.f90 -o base.o
base.f90:60:11:

   60 |     return
      |           1     
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:69:11:

   69 |     return
      |           1     
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:78:11:

   78 |     return
      |           1     
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:87:11:

   87 |     return
      |           1     
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:96:11:

   96 |     return
      |           1     
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:105:2:

  105 |         M = 0.0d0 ! Prevents uninitialized usage v 1.1.2
      |         1
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:106:11:

  106 |     return
      |           1     
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:115:2:

  115 |         M = 0 ! Prevents uninitialized usage v 1.1.2
      |         1
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:116:11:

  116 |     return
      |           1     
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:232:52:

  232 |     type(nm) :: new_nodes(ncol*2), nodes_at(ncol*2)
      |                                                    1    
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:399:2:

  399 |                          j = 1
      |         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:400:2:

  400 |                          do i = 1,k
      |         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:402:2:

  402 |                                 if(j .ne. node) then
      |         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:403:2:

  403 |                                         Pnew(:,j) = Pant(:,i)
      |         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:404:2:

  404 |                                         j = j+1
      |         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:405:2:

  405 |                                 end if
      |         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:406:2:

  406 |                          end do
      |         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:463:57:

  463 |           if(1 - MSE_list(2)/MSE_list(1) < cp) goto 999
      |                                                         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:486:55:

  486 |        nodes_info(n_nodes+1:n_nodes+2) = nodes_info_at
      |                                                       1 
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:503:51:

  503 |        terminal_nodes = pack(nodes_info%node, ind)
      |                                                   1     
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:521:37:

  521 |     type(tr), intent(inout) :: tree
      |                                         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:529:55:

  529 |     real(dp), intent(in) :: sigma(dim_s(1), dim_s(2))
      |                                                         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:558:23:

  558 |     tree%gamma = gamma
      |                       1 
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:571:38:

  571 |     tree%nodes_matrix = nodes_matrix
      |                                         1       
Warning: Nonconforming tab character at (1) [-Wtabs]
base.f90:189:17:

  189 |           if(any(isnan(X(i,:)))) then
      |                 1
Error: Function 'isnan' at (1) has no IMPLICIT type
base.f90:676:7:

  676 |   use base
      |       1
Fatal Error: Cannot open module file 'base.mod' for reading at (1): No such file or directory
compilation terminated.
make[2]: *** [/data/gannet/ripley/R/R-devel/etc/Makeconf:223: base.o] Error 1
make[2]: Leaving directory '/data/gannet/ripley/R/packages/tests-f2008/PRTree/src'
ERROR: compilation failed for package ‘PRTree’
* removing ‘/data/gannet/ripley/R/packages/tests-f2008/Libs/PRTree-lib/PRTree’
Command exited with non-zero status 1
Time 0:01.14, 0.58 + 0.19