Re: problem installing gnuplot

[Ethan A M. <me...@uw...>]

On Saturday, 11 January 2025 06:53:04 PST Ozan Kahramanogullari wrote:
> Thanks, Ethan,
> 
> Unfortunately, it still doesn't work with a different error message. (See
> below.)
> 
> It is not finding the qtcore. I have no idea what it is. I googled to find <
> https://urldefense.com/v3/__https://sourceforge.net/p/gnuplot/bugs/2591/__;!!K-Hz7m0Vt54!l9Pa6uxZHOlPbIvk4yIAEbfgXEe10dBaa3Ylb08WNEe7b1gIgrZ2aS6EVJ4d5LniMqdedb0Wgq7B1Bw$ > but the pointers there do not
> provide a simple solution. Before messing up my system by installing some
> libraries, I thought it was a good idea to let you know as it seems like
> something you are familiar with.

You may find it helpful to read the INSTALL file section about building 
for MacOS in the homebrew environment.  The description may be useful
even if you are not using homebrew.  It does mention that for some
unknown reason QtCore is not found automatically, and gives examples
of how to fix it.

	Ethan


> 
> Best,
> Ozan
> 
> make
> 
> /Library/Developer/CommandLineTools/usr/bin/make  all-recursive
> 
> Making all in config
> 
> make[2]: Nothing to be done for `all'.
> 
> Making all in m4
> 
> make[2]: Nothing to be done for `all'.
> 
> Making all in term
> 
> make[2]: Nothing to be done for `all'.
> 
> Making all in src
> 
> Making timestamp.h
> 
> /Library/Developer/CommandLineTools/usr/bin/make  all-recursive
> 
> Making all in wxterminal
> 
> make[4]: Nothing to be done for `all'.
> 
> Making all in qtterminal
> 
> make[4]: Nothing to be done for `all'.
> 
> depbase=`echo term.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT term.o -MD -MP -MF $depbase.Tpo -c -o term.o term.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> In file included from term.c:1214:
> 
> In file included from ./term.h:187:
> 
> *../term/x11.trm:1084:6: **warning: **'fork' is deprecated: Use posix_spawn
> or fork [-Wdeprecated-declarations]*
> 
>  1084 |         if (fork() == 0) {
> 
>       | *            ^*
> 
> */Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/unistd.h:604:1:
> note: *'fork' has been explicitly marked deprecated here
> 
>   604 | __deprecated_msg("Use posix_spawn or fork")
> 
>       | *^*
> 
> */Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:218:48:
> note: *expanded from macro '__deprecated_msg'
> 
>   218 |         #define __deprecated_msg(_msg)
> __attribute__((__deprecated__(_msg)))
> 
>       | *                                                      ^*
> 
> 1 warning generated.
> 
> depbase=`echo time.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT time.o -MD -MP -MF $depbase.Tpo -c -o time.o time.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> depbase=`echo unset.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT unset.o -MD -MP -MF $depbase.Tpo -c -o unset.o unset.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> depbase=`echo util.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT util.o -MD -MP -MF $depbase.Tpo -c -o util.o util.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> depbase=`echo util3d.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT util3d.o -MD -MP -MF $depbase.Tpo -c -o util3d.o util3d.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> depbase=`echo version.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT version.o -MD -MP -MF $depbase.Tpo -c -o version.o version.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> depbase=`echo voxelgrid.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT voxelgrid.o -MD -MP -MF $depbase.Tpo -c -o voxelgrid.o
> voxelgrid.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> depbase=`echo vplot.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT vplot.o -MD -MP -MF $depbase.Tpo -c -o vplot.o vplot.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> depbase=`echo watch.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT watch.o -MD -MP -MF $depbase.Tpo -c -o watch.o watch.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> depbase=`echo xdg.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2 -MT xdg.o -MD -MP -MF $depbase.Tpo -c -o xdg.o xdg.c &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> depbase=`echo qtterminal/qt_term.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> 
> c++ -std=gnu++11 -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> -DBINDIR=\"/usr/local/bin\"
> -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> gnu...@li...\"
> -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"  -DGNUPLOT_QT=\"`echo
> gnuplot_qt | sed 's,x,x,'`\"
> -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\" -I/usr/X11/include
> -g -O2  -MT qtterminal/qt_term.o -MD -MP -MF $depbase.Tpo -c -o
> qtterminal/qt_term.o qtterminal/qt_term.cpp &&\
> 
> mv -f $depbase.Tpo $depbase.Po
> 
> *qtterminal/qt_term.cpp:51:10: **fatal error: **'QtCore' file not found*
> 
>    51 | #include <QtCore>
> 
>       | *         ^~~~~~~~*
> 
> 1 error generated.
> 
> make[4]: *** [qtterminal/qt_term.o] Error 1
> 
> make[3]: *** [all-recursive] Error 1
> 
> make[2]: *** [all] Error 2
> 
> make[1]: *** [all-recursive] Error 1
> 
> make: *** [all] Error 2
> 
> 
> 
> 
> =======================
>  Ozan Kahramanoğulları, PhD
>               ozan-k.com
> =======================
> 
> 
> On Fri, 10 Jan 2025 at 19:44, Ethan A Merritt <me...@uw...> wrote:
> 
> > On Thursday, 9 January 2025 13:38:22 PST Ozan Kahramanogullari wrote:
> > > Hi,
> > >
> > > I am trying to install gnuplot following the instructions in the INSTALL
> > > file.
> > >
> > > I could run  "./prepare" and "./configure" without problems but "make"
> > > failed with the error  message below.
> > >
> > > I tried to debug the code, but it exceeded my capacity to do a quick
> > fix. I
> > > also checked online, but I could not find a solution.
> > >
> > > Can anyone help?
> > >
> > > I am using an M1 Mac, in case it is relevant.
> >
> > Yes, very relevant.
> >
> > First off, you can just ignore the warning that advises to use
> > posix_spawn()
> > instead of fork().   The real problem is "undeclared function 'rl_getc'".
> >
> > Gnuplot supports 3 alternative methods for terminal input.
> > The choice is made at build-time as part of the ./configure step.
> > 1) The gnu readline library, selected by
> >     ./configure --with-readline=gnu
> > 2) The BSD editline library, selected by
> >     ./configure --with-readline=bsd
> > 3) A minimal but functional input layer that can be selected by
> >     ./configure --with-readline=builtin
> >
> > If you do not specify any of these options, the configure script will pick
> > one for you based on what it thinks it knows about the library support
> > on your system.  I.e. first it will look for libreadline. If it doesn't
> > find that
> > it looks for libeditline.  If it finds neither it will use the builtin
> > code.
> >
> > The problem is that MacOS provides a version of the BSD library with
> > a wrapper that makes it look like, or almost like, gnu readline.
> > I say "almost" because it does not provide 100% of the routines that
> > are present in gnu readline.  I think what is happening in your case is
> > that the configure script thinks it has found the readline library on your
> > system so it selects all the readline-appropriate calling options.
> > But what it really found was the imitation readline wrapper for
> > libeditline.
> > That is normal for a Mac if you have not separately installed the "real"
> > readline library, and up until recently that was good enough for gnuplot.
> >
> > Recently gnuplot's input layer was modified to use an undocumented
> > feature of the editline wrapper so that it would be possible to support
> > UTF-8 encoded terminal input. This worked great on the machines I was
> > able to test, but an M1 Mac was not among those machines.  I am guessing
> > that the wrapper provided on your machine does not provide a wrapper
> > for rl_getc(),  or just as likely it does have such a routine but fails to
> > list it
> > in the "readline.h" header file that comes with the wrapper.
> >
> > Here is the relevant chunk of code from gnuplot's file .../src/term.c:
> >
> > > #if defined(HAVE_LIBREADLINE)
> > >
> > >   #define raw() rl_prep_terminal(1)
> > >   #define cook() rl_deprep_terminal()
> > >   #define nextchar() rl_getc(stdin)
> > >
> > > #elif defined(HAVE_LIBEDITLINE)
> > >
> > >   #define raw() rl_prep_terminal(1)
> > >   #define cook() rl_deprep_terminal()
> > >   #define nextchar() fgetc(stdin)
> > >
> > > #elif defined(READLINE)
> > >
> > >   #define raw() set_termio()
> > >   #define cook() reset_termio()
> > >   #define nextchar() fgetc(stdin)
> > >
> > > #endif
> >
> > So, what can you do?
> >
> > - It is possible that specifying one of the three input options
> > explicitly to ./configure
> > rather than letting it default would make it work.
> > Certainly the builtin option should work.
> >
> > - I am guessing that editing chunk of code shown above so that all three
> > options say
> >      #define nextchar() fgetc(stdin)
> > would be the correct solution for a system with
> > editline-masquerading-as-readline.
> > If you try that and it works, please let us know and we can try to teach
> > the configure
> > script how to handle that.  Do you know if there is a compile-time symbol
> > defined
> > on your machine to indicate that it is an M1?  That might be what we would
> > have to
> > look for.
> >
> > - I am also guessing that the "real" fix is to file a bug report against
> > the readline.h
> > header provided by Apple.  But I'm not holding my breath on that one.
> > As I said, this is an undocumented option, and there may in fact be a
> > reason for that.
> >
> >         Ethan
> >
> > > Best,
> > > Ozan
> > >
> > > =======================
> > >  Ozan Kahramanoğulları, PhD
> > >               ozan-k.com
> > > =======================
> > >
> > > (base) ozan@MBP-FVFGT17VQ05N gnuplot-gnuplot-main % make
> > >
> > > /Library/Developer/CommandLineTools/usr/bin/make  all-recursive
> > >
> > > Making all in config
> > >
> > > make[2]: Nothing to be done for `all'.
> > >
> > > Making all in m4
> > >
> > > make[2]: Nothing to be done for `all'.
> > >
> > > Making all in term
> > >
> > > make[2]: Nothing to be done for `all'.
> > >
> > > Making all in src
> > >
> > > Making timestamp.h
> > >
> > > /Library/Developer/CommandLineTools/usr/bin/make  all-recursive
> > >
> > > Making all in wxterminal
> > >
> > > make[4]: Nothing to be done for `all'.
> > >
> > > Making all in qtterminal
> > >
> > > make[4]: Nothing to be done for `all'.
> > >
> > > depbase=`echo term.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> > >
> > > gcc -DHAVE_CONFIG_H -I. -I..  -I../term -I../term
> > > -DBINDIR=\"/usr/local/bin\"
> > > -DX11_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> > > -DQT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> > > -DGNUPLOT_SHARE_DIR=\"/usr/local/share/gnuplot/6.1\"
> > > -DGNUPLOT_PS_DIR=\"/usr/local/share/gnuplot/6.1/PostScript\"
> > > -DGNUPLOT_JS_DIR=\"/usr/local/share/gnuplot/6.1/js\"
> > > -DGNUPLOT_LUA_DIR=\"/usr/local/share/gnuplot/6.1/lua\" -DCONTACT=\"
> > > gnu...@li...\"
> > > -DHELPFILE=\"/usr/local/share/gnuplot/6.1/gnuplot.gih\"
> > > -DGNUPLOT_X11=\"`echo gnuplot_x11 | sed 's,x,x,'`\"
> > > -DGNUPLOT_DRIVER_DIR=\"/usr/local/libexec/gnuplot/6.1\"
> > -DGNUPLOT_QT=\"`echo
> > > gnuplot_qt | sed 's,x,x,'`\"
> > > -DQTGNUPLOT_DATA_DIR=\"/usr/local/share/gnuplot/6.1/qt\"
> > -I/usr/X11/include
> > > -g -O2 -MT term.o -MD -MP -MF $depbase.Tpo -c -o term.o term.c &&\
> > >
> > > mv -f $depbase.Tpo $depbase.Po
> > >
> > > In file included from term.c:1214:
> > >
> > > In file included from ./term.h:187:
> > >
> > > *../term/x11.trm:1084:6: **warning: **'fork' is deprecated: Use
> > posix_spawn
> > > or fork [-Wdeprecated-declarations]*
> > >
> > >  1084 |         if (fork() == 0) {
> > >
> > >       | *            ^*
> > >
> > >
> > */Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/unistd.h:604:1:
> > > note: *'fork' has been explicitly marked deprecated here
> > >
> > >   604 | __deprecated_msg("Use posix_spawn or fork")
> > >
> > >       | *^*
> > >
> > >
> > */Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:218:48:
> > > note: *expanded from macro '__deprecated_msg'
> > >
> > >   218 |         #define __deprecated_msg(_msg)
> > > __attribute__((__deprecated__(_msg)))
> > >
> > >       | *                                                      ^*
> > >
> > > *term.c:1382:13: **error: **call to undeclared function 'rl_getc'; ISO
> > C99
> > > and later do not support implicit function declarations
> > > [-Wimplicit-function-declaration]*
> > >
> > >  1382 |         nextchar = nextchar();
> > >
> > >       | *                   ^*
> > >
> > > *term.c:1360:22: note: *expanded from macro 'nextchar'
> > >
> > >  1360 |   #define nextchar() rl_getc(stdin)
> > >
> > >       | *                     ^*
> > >
> > > 1 warning and 1 error generated.
> > >
> > > make[4]: *** [term.o] Error 1
> > >
> > > make[3]: *** [all-recursive] Error 1
> > >
> > > make[2]: *** [all] Error 2
> > >
> > > make[1]: *** [all-recursive] Error 1
> > >
> > > make: *** [all] Error 2
> > >
> >
> >
> > --
> > Ethan A Merritt
> > Department of Biochemistry
> > University of Washington, Seattle
> >
> >
> >
> 


-- 
Ethan A Merritt
Department of Biochemistry
University of Washington, Seattle