When built with GNU, with -Wall, new warnings appear

[edwardhartnett]

me/ed/NCEPLIBS-bacio/b/tests && /usr/bin/gfortran  -I/home/ed/NCEPLIBS-bacio/b/src/include_4 -Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0 -fsanitize=address -g -c /home/ed/NCEPLIBS-bacio/tests/test_bacio2.f90 -o CMakeFiles/test_bacio2.dir/test_bacio2.f90.o
/home/ed/NCEPLIBS-bacio/tests/test_bacio2.f90:12:34:

   12 |   character (len = 8) :: data_in_2
      |                                  1
Warning: Unused variable ‘data_in_2’ declared at (1) [-Wunused-variable]
/home/ed/NCEPLIBS-bacio/tests/test_bacio2.f90:13:35:

   13 |   character (len = 12) :: data_in_3
      |                                   1
Warning: Unused variable ‘data_in_3’ declared at (1) [-Wunused-variable]
/home/ed/NCEPLIBS-bacio/tests/test_bacio2.f90:16:14:

   16 |   integer :: i
      |              1
Warning: Unused variable ‘i’ declared at (1) [-Wunused-variable]
/home/ed/NCEPLIBS-bacio/tests/test_bacio2.f90:19:29:

   19 |   integer(kind=8) :: ka8, ib8, nb8, lu8
      |                             1
Warning: Unused variable ‘ib8’ declared at (1) [-Wunused-variable]
/home/ed/NCEPLIBS-bacio/tests/test_bacio2.f90:19:39:

   19 |   integer(kind=8) :: ka8, ib8, nb8, lu8
      |                                       1
Warning: Unused variable ‘lu8’ declared at (1) [-Wunused-variable]
/home/ed/NCEPLIBS-bacio/tests/test_bacio2.f90:19:34:

   19 |   integer(kind=8) :: ka8, ib8, nb8, lu8
      |                                  1
Warning: Unused variable ‘nb8’ declared at (1) [-Wunused-variable]
/home/ed/NCEPLIBS-bacio/tests/test_bacio2.f90:10:33:

   10 |   character (len = 4) :: new_data
      |                                 1
Warning: Unused variable ‘new_data’ declared at (1) [-Wunused-variable]

and

[ 52%] Building Fortran object tests/CMakeFiles/test_bacio.dir/test_bacio.f90.o
cd /home/ed/NCEPLIBS-bacio/b/tests && /usr/bin/gfortran  -I/home/ed/NCEPLIBS-bacio/b/src/include_4 -Wall -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0 -fsanitize=address -g -c /home/ed/NCEPLIBS-bacio/tests/test_bacio.f90 -o CMakeFiles/test_bacio.dir/test_bacio.f90.o
/home/ed/NCEPLIBS-bacio/tests/test_bacio.f90:16:39:

   16 |   integer(kind=8) :: ka8, ib8, nb8, lu8
      |                                       1
Warning: Unused variable ‘lu8’ declared at (1) [-Wunused-variable]

and

/home/ed/NCEPLIBS-bacio/tests/test_byteswap.c: In function ‘main’:
/home/ed/NCEPLIBS-bacio/tests/test_byteswap.c:66:13: warning: unused variable ‘ret’ [-Wunused-variable]
   66 |         int ret;
      |             ^~~

and

cd /home/ed/NCEPLIBS-bacio/b/tests && /usr/bin/cc  -I/home/ed/NCEPLIBS-bacio/src -I/home/ed/NCEPLIBS-bacio/b/src/include_4 -g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0 -fsanitize=address -Wall -g -MD -MT tests/CMakeFiles/test_bacio_c.dir/test_bacio_c.c.o -MF CMakeFiles/test_bacio_c.dir/test_bacio_c.c.o.d -o CMakeFiles/test_bacio_c.dir/test_bacio_c.c.o -c /home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c: In function ‘main’:
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c:38:13: warning: unused variable ‘i’ [-Wunused-variable]
   38 |         int i;
      |             ^
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c:37:36: warning: variable ‘bad_namelen’ set but not used [-Wunused-but-set-variable]
   37 |         int  namelen, datanamelen, bad_namelen;
      |                                    ^~~~~~~~~~~
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c:165:13: warning: unused variable ‘i’ [-Wunused-variable]
  165 |         int i;
      |             ^
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c:159:13: warning: unused variable ‘bad_start’ [-Wunused-variable]
  159 |         int bad_start = 100;
      |             ^~~~~~~~~
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c:326:9: warning: "/*" within comment [-Wcomment]
  326 |         /* mode = BAOPEN_RONLY; */
      |          
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c:274:13: warning: unused variable ‘i’ [-Wunused-variable]
  274 |         int i;
      |             ^
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c:273:36: warning: variable ‘bad_namelen’ set but not used [-Wunused-but-set-variable]
  273 |         int  namelen, datanamelen, bad_namelen;
      |                                    ^~~~~~~~~~~
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c:398:13: warning: unused variable ‘i’ [-Wunused-variable]
  398 |         int i;
      |             ^
/home/ed/NCEPLIBS-bacio/tests/test_bacio_c.c:391:18: warning: unused variable ‘bad_start’ [-Wunused-variable]
  391 |         long int bad_start = 100;
      |                  ^~~~~~~~~