>>> In a gcc build script terminating with the instruction
>>> gcc -w -static -o myexe -O3 ./myarchive.a -lreadline -lncurses -lm
>>> I have suddenly started getting very many instances of both of
>>> ld: /usr/src/debug/readline-8.2-2/terminal.c:nn various: undefined
>>> reference to `{various}'
>>> ld: /usr/src/debug/readline-8.2-2/display.c:nn various: undefined
>>> reference to `{various}'
>>> and the build fails.
>> The problem was with readline not gcc
>> and I assume originates in myarchive.a and the required switch -lreadline in
>> the gcc line
>> rather than in readline: nevertheless I reverted both libreadline-devel and
>> libreadline7
>> from 8.2-2 to 7.03 and the problem went away.
> Please provide a few examples which include the actual texts of "nn various"
> and
> `{various}' especially where any prefixes vary.
> Did you also upgrade/downgrade libncurses-devel concurrent with
> libreadline-devel as they are dependent?
> Why suppress all warnings -w from the ld (or any) phase of compilation?
> Those warnings could tell you what causes an issue.
No I didn't upgrade / downgrade libncurses-devel concurrently with
libreadline-devel.
In fact after upgrading back to 8.2-2 and confirming the failed build I
retained all current and up-to-date
and made _just_one_change_: I extracted the single file libreadline.a from
libreadline-devel-8.1-2.tar.xz
(i.e. just one reversion to 8.1 not two to 7.0) and substituted it in place
leaving everything else as for 8.2-2
including libreadline.dll.a and confirmed that this single substitution allowed
the build.
I suppress the warnings because there are so many of them! I can supply them
but for the moment the issues
that prevent a successful build using libreadline.a (8.2-2) are listed in the
attached text file.
Thank you very much for taking an interest.
4444
Description: 4444
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