Re: [Buildroot] libreadline undefined symbol error when generating rootfs tarball

From: Peter Seiderer via buildroot <buildroot@buildroot.org>
To: Bagas Sanjaya <bagasdotme@gmail.com>
Cc: Buildroot Development <buildroot@buildroot.org>
Subject: Re: [Buildroot] libreadline undefined symbol error when generating rootfs tarball
Date: Wed, 17 Sep 2025 17:20:21 +0200	[thread overview]
Message-ID: <20250917172021.36e9bc72@pc-1> (raw)
In-Reply-To: <aMpFFo96JmNi24Zq@archie.me>

On Wed, 17 Sep 2025 12:20:22 +0700, Bagas Sanjaya <bagasdotme@gmail.com> wrote:

> On Tue, Sep 16, 2025 at 08:42:17AM +0200, Peter Seiderer wrote:
> > The following patch fixed the problem for me:
> > 
> > diff --git a/package/readline/readline.mk b/package/readline/readline.mk
> > index f69cbe45e2..078607a0c5 100644
> > --- a/package/readline/readline.mk
> > +++ b/package/readline/readline.mk
> > @@ -15,6 +15,10 @@ READLINE_CONF_OPTS = \
> >  	--disable-install-examples \
> >  	--with-curses \
> >  	--with-shared-termcap-library
> > +HOST_READLINE_CONF_OPTS = \
> > +	--disable-install-examples \
> > +	--with-curses \
> > +	--with-shared-termcap-library
> >  READLINE_LICENSE = GPL-3.0+
> >  READLINE_LICENSE_FILES = COPYING
> >  READLINE_CPE_ID_VENDOR = gnu  
> 
> Applying your patch, I get another build error (this time on gdb):
> 
> ```
>   CXX    init.o
>   CXXLD  gdb
> /usr/bin/ld: /home/bagas/repo/buildroot/output/host/lib/libreadline.so: undefined reference to `tgoto@NCURSES6_TINFO_5.0.19991023'
> /usr/bin/ld: /home/bagas/repo/buildroot/output/host/lib/libreadline.so: undefined reference to `UP@NCURSES6_TINFO_5.0.19991023'
> /usr/bin/ld: /home/bagas/repo/buildroot/output/host/lib/libreadline.so: undefined reference to `tgetent@NCURSES6_TINFO_5.0.19991023'
> /usr/bin/ld: /home/bagas/repo/buildroot/output/host/lib/libreadline.so: undefined reference to `tgetnum@NCURSES6_TINFO_5.0.19991023'
> /usr/bin/ld: /home/bagas/repo/buildroot/output/host/lib/libreadline.so: undefined reference to `PC@NCURSES6_TINFO_5.0.19991023'
> /usr/bin/ld: /home/bagas/repo/buildroot/output/host/lib/libreadline.so: undefined reference to `tgetstr@NCURSES6_TINFO_5.0.19991023'
> /usr/bin/ld: /home/bagas/repo/buildroot/output/host/lib/libreadline.so: undefined reference to `tgetflag@NCURSES6_TINFO_5.0.19991023'
> /usr/bin/ld: /home/bagas/repo/buildroot/output/host/lib/libreadline.so: undefined reference to `BC@NCURSES6_TINFO_5.0.19991023'
> /usr/bin/ld: /home/bagas/repo/buildroot/output/host/lib/libreadline.so: undefined reference to `tputs@NCURSES6_TINFO_5.0.19991023'
> collect2: error: ld returned 1 exit status
> make[3]: *** [Makefile:2232: gdb] Error 1
> ```
> 
> Thanks.
>  

Sorry, could not reproduce your failure...., did you make a complete

	$ make clean
	$ make

re-build after applying the patch/change?

Regards,
Peter

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