* installing *source* package ‘LWFBrook90R’ ...
** package ‘LWFBrook90R’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C compiler: ‘Apple clang version 14.0.3 (clang-1403.0.22.14.1)’
using Fortran compiler: ‘GNU Fortran (GCC) 14.2.0’
using SDK: ‘MacOSX11.3.sdk’
/opt/gfortran/bin/gfortran -arch arm64  -fPIC  -Wall -g -O2  -c  md_decl_const.f95 -o md_decl_const.o
/opt/gfortran/bin/gfortran -arch arm64  -fPIC  -Wall -g -O2  -c  md_typedefs.f95 -o md_typedefs.o
/opt/gfortran/bin/gfortran -arch arm64  -fPIC  -Wall -g -O2  -c  md_brook90.f95 -o md_brook90.o
md_brook90.f95:1073:32:

 1073 |     real(kind=c_double) :: INFIL     ! water reaching layer, SLFL * INFRAC(I), mm/d
      |                                1
Warning: Unused variable 'infil' declared at (1) [-Wunused-variable]
md_brook90.f95:1074:32:

 1074 |     real(kind=c_double) :: MAXIN     ! maximum allowed rate of input of water to layer, mm/d
      |                                1
Warning: Unused variable 'maxin' declared at (1) [-Wunused-variable]
md_brook90.f95:3367:20:

 3367 | end function FPSIMgw
      |                    ^
Warning: '__result_fpsimgw' may be used uninitialized [-Wmaybe-uninitialized]
md_brook90.f95:3337:0:

 3337 | function FPSIMgw(WETNES, Par, iModel, gwv, i_layer)
note: '__result_fpsimgw' was declared here
md_brook90.f95:3535:16:

 3535 |             if (timer .EQ. 1) call rchkusr()
      |                ^
Warning: 'timer' may be used uninitialized [-Wmaybe-uninitialized]
md_brook90.f95:2268:20:

 2268 |     integer :: timer     ! check timelimits set by R-user?
      |                    ^
note: 'timer' was declared here
md_brook90.f95:208:48:

  208 |         IF (YEAR .NE. YY .OR. MONTH .NE. MM .OR. DOM .NE. DD) THEN
      |                                                ^
Warning: 'dom' may be used uninitialized [-Wmaybe-uninitialized]
VARDCL.h:65:14:

   65 | integer :: DOM                  ! day of month
      |              ^
note: 'dom' was declared here
md_brook90.f95:208:48:

  208 |         IF (YEAR .NE. YY .OR. MONTH .NE. MM .OR. DOM .NE. DD) THEN
      |                                                ^
Warning: 'month' may be used uninitialized [-Wmaybe-uninitialized]
VARDCL.h:157:16:

  157 | integer :: MONTH                ! month number
      |                ^
note: 'month' was declared here
output_pint.h:92:23:

   92 | RELAWAT = AWAT / AWATFK
      |                       ^
Warning: 'awatfk' may be used uninitialized [-Wmaybe-uninitialized]
VARDCL.h:32:29:

   32 | real(kind=c_double) :: AWATFK          ! available soil water in root zone at field cap., mm, output only
      |                             ^
note: 'awatfk' was declared here
clang -arch arm64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/arm64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c skeleton.c -o skeleton.o
clang -arch arm64 -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -L/Library/Frameworks/R.framework/Resources/lib -L/opt/R/arm64/lib -o LWFBrook90R.so md_brook90.o md_decl_const.o md_typedefs.o skeleton.o -L/opt/gfortran/lib/gcc/aarch64-apple-darwin20.0/12.2.0 -L/opt/gfortran/lib -lgfortran -lemutls_w -lquadmath -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
ld: warning: directory not found for option '-L/opt/gfortran/lib/gcc/aarch64-apple-darwin20.0/12.2.0'
ld: library not found for -lgfortran
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [LWFBrook90R.so] Error 1
ERROR: compilation failed for package ‘LWFBrook90R’
* removing ‘/Volumes/Builds/packages/big-sur-arm64/results/4.4/LWFBrook90R.Rcheck/LWFBrook90R’