Duplicate symbols due to <emacs dir>/src/termcap.c

Duplicate symbols due to <emacs dir>/src/termcap.c

[Jeffrey Walton]

I'm building Emacs from sources. Termcap, Ncurses, GetText and friends
are already installed.

As the build finishes I see:

    ...
    /usr/local/lib64/libtermcap.a(tparam.o): In function `tparam':
    /home/scripts/termcap-1.3.1/tparam.c:101: multiple definition of `tparam'
    terminfo.o:terminfo.c:(.text+0x0): first defined here
    terminfo.o: In function `tparam':
    terminfo.c:(.text+0x4a): undefined reference to `tparm'
    collect2: error: ld returned 1 exit status

It looks like it is due to a local copy of termcap.c:

    $ find . -name termcap.c
    ./emacs-24.5/src/termcap.c

How do I tell Emacs to avoid its copy of Termcap, and use the one
already built and installed

******************************

Here is how Emacs was configured:

   PKG_CONFIG_PATH="${BUILD_PKGCONFIG[*]}" \
   CPPFLAGS="${BUILD_CPPFLAGS[*]}" \
   CFLAGS="${BUILD_CFLAGS[*]}" CXXFLAGS="${BUILD_CXXFLAGS[*]}" \
   LDFLAGS="${BUILD_LDFLAGS[*]}" LIBS="${BUILD_LIBS[*]}" \
./configure --prefix="$INSTALL_PREFIX" --libdir="$INSTALL_LIBDIR" \
   --with-xml2 --without-x --without-sound --without-xpm \
   --without-jpeg --without-tiff --without-gif --without-png --without-rsvg \
   --without-imagemagick --without-xft --without-libotf --without-m17n-flt \
   --without-xaw3d --without-toolkit-scroll-bars --without-gpm --without-dbus \
   --without-gconf --without-gsettings --without-makeinfo \
   --without-compress-install

And here are the variables it was asked to use:

 INSTALL_PREFIX: /usr/local
 INSTALL_LIBDIR: /usr/local/lib64

      PKGCONFIG: /usr/local/lib64/pkgconfig
       CPPFLAGS: -I/usr/local/include -DNDEBUG
         CFLAGS: -m64 -march=native -fPIC
       CXXFLAGS: -m64 -march=native -fPIC
        LDFLAGS: -L/usr/local/lib64 -m64 -Wl,-R,/usr/local/lib64
-Wl,--enable-new-dtags
         LDLIBS: -ldl -lpthread

******************************

gcc -Demacs  -I. -I. -I../lib -I./../lib -MMD -MF deps/.d -MP -m64
-march=native -fPIC  -Wl,-znocombreloc  -L/usr/local/lib64 -m64
-Wl,-R,/usr/local/lib64 -Wl,--enable-new-dtags \
  -o temacs  vm-limit.o dispnew.o frame.o scroll.o xdisp.o menu.o
window.o charset.o coding.o category.o ccl.o character.o chartab.o
bidi.o cm.o term.o terminal.o xfaces.o    emacs.o keyboard.o macros.o
keymap.o sysdep.o buffer.o filelock.o insdel.o marker.o minibuf.o
fileio.o dired.o cmds.o casetab.o casefiddle.o indent.o search.o
regex.o undo.o alloc.o data.o doc.o editfns.o callint.o eval.o
floatfns.o fns.o font.o print.o lread.o syntax.o unexelf.o bytecode.o
process.o gnutls.o callproc.o region-cache.o sound.o atimer.o doprnt.o
intervals.o textprop.o composite.o xml.o inotify.o profiler.o
decompress.o          terminfo.o lastfile.o gmalloc.o ralloc.o
../lib/libgnu.a                -lrt          -ltermcap
-lpthread   -lm -lz
/usr/local/lib64/libtermcap.a(tparam.o): In function `tparam':
/home/scripts/termcap-1.3.1/tparam.c:101: multiple definition of `tparam'
terminfo.o:terminfo.c:(.text+0x0): first defined here
terminfo.o: In function `tparam':
terminfo.c:(.text+0x4a): undefined reference to `tparm'
collect2: error: ld returned 1 exit status
gmake[1]: *** [Makefile:664: temacs] Error 1
gmake[1]: Leaving directory '/home/scripts/emacs-24.5/src'
gmake: *** [Makefile:387: src] Error 2

Re: Duplicate symbols due to <emacs dir>/src/termcap.c

[ken]

On 01/03/2018 05:39 PM, Jeffrey Walton wrote:
> I'm building Emacs from sources. Termcap, Ncurses, GetText and friends
> are already installed.
>
> As the build finishes I see:
>
>      ...
>      /usr/local/lib64/libtermcap.a(tparam.o): In function `tparam':
>      /home/scripts/termcap-1.3.1/tparam.c:101: multiple definition of `tparam'
>      terminfo.o:terminfo.c:(.text+0x0): first defined here
>      terminfo.o: In function `tparam':
>      terminfo.c:(.text+0x4a): undefined reference to `tparm'
>      collect2: error: ld returned 1 exit status
>
> It looks like it is due to a local copy of termcap.c:
>
>      $ find . -name termcap.c
>      ./emacs-24.5/src/termcap.c
>
> How do I tell Emacs to avoid its copy of Termcap, and use the one
> already built and installed
>
> ******************************
>
> Here is how Emacs was configured:
>
>     PKG_CONFIG_PATH="${BUILD_PKGCONFIG[*]}" \
>     CPPFLAGS="${BUILD_CPPFLAGS[*]}" \
>     CFLAGS="${BUILD_CFLAGS[*]}" CXXFLAGS="${BUILD_CXXFLAGS[*]}" \
>     LDFLAGS="${BUILD_LDFLAGS[*]}" LIBS="${BUILD_LIBS[*]}" \
> ./configure --prefix="$INSTALL_PREFIX" --libdir="$INSTALL_LIBDIR" \
>     --with-xml2 --without-x --without-sound --without-xpm \
>     --without-jpeg --without-tiff --without-gif --without-png --without-rsvg \
>     --without-imagemagick --without-xft --without-libotf --without-m17n-flt \
>     --without-xaw3d --without-toolkit-scroll-bars --without-gpm --without-dbus \
>     --without-gconf --without-gsettings --without-makeinfo \
>     --without-compress-install
>
> And here are the variables it was asked to use:
>
>   INSTALL_PREFIX: /usr/local
>   INSTALL_LIBDIR: /usr/local/lib64
>
>        PKGCONFIG: /usr/local/lib64/pkgconfig
>         CPPFLAGS: -I/usr/local/include -DNDEBUG
>           CFLAGS: -m64 -march=native -fPIC
>         CXXFLAGS: -m64 -march=native -fPIC
>          LDFLAGS: -L/usr/local/lib64 -m64 -Wl,-R,/usr/local/lib64
> -Wl,--enable-new-dtags
>           LDLIBS: -ldl -lpthread
>
> ******************************
>
> gcc -Demacs  -I. -I. -I../lib -I./../lib -MMD -MF deps/.d -MP -m64
> -march=native -fPIC  -Wl,-znocombreloc  -L/usr/local/lib64 -m64
> -Wl,-R,/usr/local/lib64 -Wl,--enable-new-dtags \
>    -o temacs  vm-limit.o dispnew.o frame.o scroll.o xdisp.o menu.o
> window.o charset.o coding.o category.o ccl.o character.o chartab.o
> bidi.o cm.o term.o terminal.o xfaces.o    emacs.o keyboard.o macros.o
> keymap.o sysdep.o buffer.o filelock.o insdel.o marker.o minibuf.o
> fileio.o dired.o cmds.o casetab.o casefiddle.o indent.o search.o
> regex.o undo.o alloc.o data.o doc.o editfns.o callint.o eval.o
> floatfns.o fns.o font.o print.o lread.o syntax.o unexelf.o bytecode.o
> process.o gnutls.o callproc.o region-cache.o sound.o atimer.o doprnt.o
> intervals.o textprop.o composite.o xml.o inotify.o profiler.o
> decompress.o          terminfo.o lastfile.o gmalloc.o ralloc.o
> ../lib/libgnu.a                -lrt          -ltermcap
> -lpthread   -lm -lz
> /usr/local/lib64/libtermcap.a(tparam.o): In function `tparam':
> /home/scripts/termcap-1.3.1/tparam.c:101: multiple definition of `tparam'
> terminfo.o:terminfo.c:(.text+0x0): first defined here
> terminfo.o: In function `tparam':
> terminfo.c:(.text+0x4a): undefined reference to `tparm'
> collect2: error: ld returned 1 exit status
> gmake[1]: *** [Makefile:664: temacs] Error 1
> gmake[1]: Leaving directory '/home/scripts/emacs-24.5/src'
> gmake: *** [Makefile:387: src] Error 2
>
This hasn't been my wheelhouse for a long time, but it used to be that a 
make (now gmake) would resolve such a conflict by using the most recent 
file... so here doing a "touch termcap.c" on your preferred version 
would be a fix.

But that fix would actually depend upon the contents of your Makefile.  
So if the above doesn't work (and absent documentation telling you), 
look into that Makefile to see if its code specify more recent files 
gain priority or, alternatively, if some particular directory or 
directory tree endows preference when there are duplicate files.

But before all that, I think what I would do would be "gcc [relevant 
flags] /home/scripts/termcap-1.3.1/tparam.c" just to check if that by 
itself compiles properly.

Happy hacking!

Re: Duplicate symbols due to <emacs dir>/src/termcap.c

[Glenn Morris]

Jeffrey Walton wrote:

>     /usr/local/lib64/libtermcap.a(tparam.o): In function `tparam':
>     /home/scripts/termcap-1.3.1/tparam.c:101: multiple definition of `tparam'
>     terminfo.o:terminfo.c:(.text+0x0): first defined here
>     terminfo.o: In function `tparam':
>     terminfo.c:(.text+0x4a): undefined reference to `tparm'
>     collect2: error: ld returned 1 exit status
>
> It looks like it is due to a local copy of termcap.c:
>
>     $ find . -name termcap.c
>     ./emacs-24.5/src/termcap.c

I think your conclusion about the cause of this issue is incorrect.
Emacs does not use its file src/termcap.c, except on MS-DOS.

> gcc -Demacs  -I. -I. -I../lib -I./../lib -MMD -MF deps/.d -MP -m64
> -march=native -fPIC  -Wl,-znocombreloc  -L/usr/local/lib64 -m64
> -Wl,-R,/usr/local/lib64 -Wl,--enable-new-dtags \
>   -o temacs  vm-limit.o dispnew.o frame.o scroll.o xdisp.o menu.o
> window.o charset.o coding.o category.o ccl.o character.o chartab.o
> bidi.o cm.o term.o terminal.o xfaces.o    emacs.o keyboard.o macros.o
> keymap.o sysdep.o buffer.o filelock.o insdel.o marker.o minibuf.o
> fileio.o dired.o cmds.o casetab.o casefiddle.o indent.o search.o
> regex.o undo.o alloc.o data.o doc.o editfns.o callint.o eval.o
> floatfns.o fns.o font.o print.o lread.o syntax.o unexelf.o bytecode.o
> process.o gnutls.o callproc.o region-cache.o sound.o atimer.o doprnt.o
> intervals.o textprop.o composite.o xml.o inotify.o profiler.o
> decompress.o          terminfo.o lastfile.o gmalloc.o ralloc.o
> ../lib/libgnu.a                -lrt          -ltermcap
> -lpthread   -lm -lz

Note lack of "termcap.o" in the above.

> /usr/local/lib64/libtermcap.a(tparam.o): In function `tparam':
> /home/scripts/termcap-1.3.1/tparam.c:101: multiple definition of `tparam'
> terminfo.o:terminfo.c:(.text+0x0): first defined here
> terminfo.o: In function `tparam':
> terminfo.c:(.text+0x4a): undefined reference to `tparm'

So it looks like you have a hand-compiled, static version of libtermcap,
which is rather unusual. I think the problem is internal to your
libtermcap installation.

Emacs's configure script will use any of libtinfo, libncurses,
libterminfo in preference to libtermcap. So you might try installing one
of those, preferably the standard version from your (unspecified)
distribution, and retry with a clean build.

Note also that Emacs 25.3 is the latest release.