This section documents the behavior of GNU Fortran for file operations on symbolic links, on systems that support them.
INQUIRE(FILE="foo",EXIST=ex) will set ex to .true. if foo is a symbolic link pointing to an existing file, and .false. if foo points to an non-existing file (“dangling” symbolic link). OPEN statement with a STATUS="NEW" specifier on a symbolic link will result in an error condition, whether the symbolic link points to an existing target or is dangling. CLOSE statement with a STATUS="DELETE" specifier will cause the symbolic link itself to be deleted, not its target.
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https://gcc.gnu.org/onlinedocs/gcc-7.2.0/gfortran/File-operations-on-symbolic-links.html