I have finally bootstrapped gfortran with the two patches applied and the spurious warnings with -Wall are now gone (limited testing), but I see a regression for gfortran.dg/string_1.f90 due to an additional error
/opt/gcc/_clean/gcc/testsuite/gfortran.dg/string_1.f90:13:15: print *, len(s) 1 Error: Result of LEN overflows its kind at (1) No idea why this was not emitted without the patch. > Le 12 janv. 2018 à 21:43, Joseph Myers <jos...@codesourcery.com> a écrit : > > On Fri, 12 Jan 2018, Janne Blomqvist wrote: > >> (I don't know why HOST_WIDE_INT_PRINT_DEC doesn't work with the >> diagnostics machinery on darwin, but IMHO at this point it's too late > > HOST_WIDE_INT_PRINT_DEC is a host-specific printf format; for example, it > might use %I64d on Windows host or %lld elsewhere. The formats used in > diagnostic functions must *not* be host-specific or use macros anywhere in > them at all, because that won't work with translation. Diagnostic > functions have their own host-independent formats; %wd is the correct > format for HOST_WIDE_INT in diagnostic functions. > > -- > Joseph S. Myers > jos...@codesourcery.com I have tried to use %wp, but it didn’t work: ../../work/gcc/fortran/decl.c: In function 'void gfc_set_constant_character_len(gfc_charlen_t, gfc_expr*, gfc_charlen_t)': ../../work/gcc/fortran/decl.c:1567:5: error: unknown conversion type character 'w' in format [-Werror=format=] "CHARACTER expression at %L is being truncated " ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "(%wd/%wd)", &expr->where, ~~~~~~~~~~~ ../../work/gcc/fortran/decl.c:1567:5: error: unknown conversion type character 'w' in format [-Werror=format=] ../../work/gcc/fortran/decl.c:1567:5: error: too many arguments for format [-Werror=format-extra-args] ../../work/gcc/fortran/decl.c:1575:17: error: unknown conversion type character 'w' in format [-Werror=format=] gfc_error_now ("The CHARACTER elements of the array constructor " ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "at %L must have the same length (%wd/%wd)", ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../../work/gcc/fortran/decl.c:1575:17: error: unknown conversion type character 'w' in format [-Werror=format=] ../../work/gcc/fortran/decl.c:1575:17: error: too many arguments for format [-Werror=format-extra-args] Dominique