Hi, > My Fortran project is based on -std=f2008. The GNU Fortran (For GCC version > 15.0.0) manual’s 8.260 STAT example does not link if -std=f2008 is on the > command line: gfortran -std=f2008 test_stat.f90; ./a.out > The ld error is “undefined reference to `stat_’”
Our doc (https://gcc.gnu.org/onlinedocs/gfortran/STAT.html) states: "Standard: GNU extension” If you compile with -std=f2008 (or any other -std value except gnu or legacy), the STAT intrinsic is not available. Nor is CTIME. If you compile with -W -Wall, you will get helpful warnings about this: test_stat.f90:5:21: 5 | CALL STAT("/etc/passwd", buff, status) | 1 Warning: The intrinsic 'stat' at (1) is not included in the selected standard but a GNU Fortran extension and 'stat' will be treated as if declared EXTERNAL. Use an appropriate '-std=' option or define '-fall-intrinsics' to allow this intrinsic. [-Wintrinsics-st] test_stat.f90:5:21: Warning: The intrinsic 'stat' at (1) is not included in the selected standard but a GNU Fortran extension and 'stat' will be treated as if declared EXTERNAL. Use an appropriate '-std=' option or define '-fall-intrinsics' to allow this intrinsic. [-Wintrinsics-std] test_stat.f90:5:50: 5 | CALL STAT("/etc/passwd", buff, status) | 1 Warning: The intrinsic 'stat' at (1) is not included in the selected standard but a GNU Fortran extension and 'stat' will be treated as if declared EXTERNAL. Use an appropriate '-std=' option or define '-fall-intrinsics' to allow this intrinsic. [-Wintrinsics-st] test_stat.f90:16:75: 16 | WRITE (*, FMT="('Last access time:', T30, A19)") CTIME(buff(9)) | 1 Warning: The intrinsic 'ctime' at (1) is not included in the selected standard but a GNU Fortran extension and 'ctime' will be treated as if declared EXTERNAL. Use an appropriate '-std=' option or define '-fall-intrinsics' to allow this intrinsic. [-Wintrinsics-std] test_stat.f90:16:75: Warning: The intrinsic 'ctime' at (1) is not included in the selected standard but a GNU Fortran extension and 'ctime' will be treated as if declared EXTERNAL. Use an appropriate '-std=' option or define '-fall-intrinsics' to allow this intrinsic. [-Wintrinsics-std] test_stat.f90:16:69: 16 | WRITE (*, FMT="('Last access time:', T30, A19)") CTIME(buff(9)) | 1 Warning: The intrinsic 'ctime' at (1) is not included in the selected standard but a GNU Fortran extension and 'ctime' will be treated as if declared EXTERNAL. Use an appropriate '-std=' option or define '-fall-intrinsics' to allow this intrinsic. [-Wintrinsics-std] Best, FX
