PR fortran/32035
* trans-stmt.c (gfc_trans_character_select): Replace the
mechanism with labels by a SWITCH_EXPR.
* trans-decl.c (gfc_build_builtin_function_decls): Change
return type for select_string.
* runtime/select.c (select_string): Adjust prototype and function
so that the return value is an integer, not a pointer.
* gfortran.dg/select_char_1.f90: New test.
From-SVN: r126978
