Re: Some symbols missed in llib-ltinfo and llib-ltinfot for 6.1?

[Thomas Dickey]

On Mon, Feb 26, 2018 at 12:12:56PM +0100, Dr. Werner Fink wrote:
> Hi,
> 
> just to check binary compatibility I see from a diff of the exported
> functions for libtinfo and libtinfow

offhand, that looks as expected:  the "ncursestw" variant should be
supplying all of the symbols that are in "ncursest", but the reverse is
not true.  (That was also true of the data section, so I assume you've
been building/delivering the tinfo "w" flavor).

The wide-character library adds entrypoints which support the 32-bit
numbers, which use a larger (TERMTYPE2) structure than the one
supporting 16-bit numbers (TERMTYPE).

I named the new functions with a "2" on the end to denote their
relationship to TERMTYPE2.

When built as "ncursestw", the older functions accept a "TERMTYPE" (no
"2") parameter, and the library converts as needed.

Bear in mind that there were a few bug-reports last spring and early
summer when I completed those changes, but it seems to be working as
designed.

By the way, to support 32-bit numbers in terminfo, you'll have to
build/link the command-line utilities with the wide-character
configuration.
 
>   nm -D /lib64/libtinfow.so.6.1 | sed -r 's/^.*([ABDUTRw] )/\1/' > /tmp/w1
>   nm -D /lib64/libtinfo.so.6.1  | sed -r 's/^.*([ABDUTRw] )/\1/' > /tmp/w2
>   --- /tmp/w1   2018-02-26 11:34:59.923489735 +0100
>   +++ /tmp/w2   2018-02-26 11:35:02.635520423 +0100
>   @@ -16,10 +16,10 @@ A NCURSES6_TINFO_5.7.20081102
>    A NCURSES6_TINFO_5.8.20110226
>    A NCURSES6_TINFO_5.9.20150530
>    A NCURSES6_TINFO_6.1.20171230
>   -A NCURSESTW6_5.7.20081102
>   -A NCURSESTW6_5.8.20110226
>   -A NCURSESTW6_5.9.20150530
>   -A NCURSESTW6_6.1.20171230
>   +A NCURSEST6_5.7.20081102
>   +A NCURSEST6_5.8.20110226
>   +A NCURSEST6_5.9.20150530
>   +A NCURSEST6_6.1.20171230
>    B PC
>    B SP
>    B UP
>   @@ -48,7 +48,6 @@ T _nc_boolcodes
>    T _nc_boolfnames
>    T _nc_boolnames
>    T _nc_copy_termtype
>   -T _nc_copy_termtype2
>    T _nc_cur_term
>    B _nc_curr_col
>    B _nc_curr_line
>   @@ -57,9 +56,7 @@ T _nc_doalloc
>    T _nc_env_access
>    T _nc_err_abort
>    T _nc_eventlist_timeout
>   -T _nc_export_termtype2
>    T _nc_fallback
>   -T _nc_fallback2
>    T _nc_find_entry
>    T _nc_find_prescr
>    T _nc_find_type_entry
>   @@ -70,7 +67,6 @@ T _nc_flush_sp
>    T _nc_forget_prescr
>    T _nc_free_entries
>    T _nc_free_termtype
>   -T _nc_free_termtype2
>    T _nc_get_alias_table
>    T _nc_get_hash_table
>    T _nc_get_locale
>   @@ -119,7 +115,6 @@ T _nc_putp
>    T _nc_putp_flush_sp
>    T _nc_putp_sp
>    T _nc_read_entry
>   -T _nc_read_entry2
>    T _nc_read_file_entry
>    T _nc_read_termtype
>    T _nc_rootname
> 
> AFAICR those libs should be compatible, shouldn't those?
> 
> Werner
> 
> -- 
>   "Having a smoking section in a restaurant is like having
>           a peeing section in a swimming pool." -- Edward Burr



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-- 
Thomas E. Dickey <address@hidden>
https://invisible-island.net
ftp://ftp.invisible-island.net

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