Re: Doubt about plotting on MAC OS X Catalina

El 28 nov 2019, a las 16:10, Dr. Jürgen Sauermann <address@hidden> escribió:
Hi,

try:

ldd apl

in the src directory to see if the apl binary find all its libraries. If not then you
need to configure and run ldconfig to tell the dynamic linker the place where
the shared libraries can be found. This is fairly platform dependant. It has no
relation to the header files (they are no longer needed after successful compilation).

Best Regards,
Jürgen Sauermann

On 11/28/19 4:00 PM, Antonio Juan wrote:
I will try that
I Have tried this.

LIBRARY_PATH=/opt/X11/lib:$LIBRARY_PATH CPPFLAGS="-I/opt/X11/include" LDFLAGS="-L/opt/X11/lib" ./configure

Compiled and it worked finally de interpreter can find the X11 but now giving a segmentation fault:
⎕PLOT 1 2 3 4

123145462255616

===================================================

SEGMENTATION FAULT

----------------------------------------

-- Stack trace at main.cc:88

----------------------------------------

0x0 @@@@

0xA @@@@

0x0 @@@@

0x0 @@@@

0xA @@@@

========================================

====================================================

Goodbye.

Session duration: 7.84882 seconds

Process apl<1> exited abnormally with code 3

Do you thing that adding the include files will help?
El 28 nov 2019, a las 15:56, Dr. Jürgen Sauermann <address@hidden> escribió:
Hi,

too bad. How about /usr/local/include (and a bit olf luck that g++ knows it) ?

Best Regards,
Jürgen

On 11/28/19 3:08 PM, Antonio Juan wrote:
Sorry for another inconvenience but since catalina I cannot write to /usr/include
/usr 

➜ sudo mkdir include

mkdir: include: Read-only file system
El 28 nov 2019, a las 14:06, Dr. Jürgen Sauermann <address@hidden> escribió:
Hi,

so the headers are usable even though they don't exist. Interesting platform
that you have there. In that situation I would (recursively) copy the header files from
/opt/X11/include to /usr/include to make sure that they are found by both the
preprocessor and the compiler. If I remember correctly then apple does not
use the real g++ but a kind of emulation of it which might cause this kind of
problems.

Also have a look at config.log after ./configure; it tells you how the tests were compiled.

Best Regards,
Jürgen

On 11/28/19 1:42 PM, Antonio Juan wrote:
Compiled well again same error, on apl interpreter

This is the new configure output
checking xcb/xcb.h usability... yes

checking xcb/xcb.h presence... no

configure: WARNING: xcb/xcb.h: accepted by the compiler, rejected by the preprocessor!

configure: WARNING: xcb/xcb.h: proceeding with the compiler's result

checking for xcb/xcb.h... yes

checking X11/Xlib.h usability... yes

checking X11/Xlib.h presence... no

configure: WARNING: X11/Xlib.h: accepted by the compiler, rejected by the preprocessor!

configure: WARNING: X11/Xlib.h: proceeding with the compiler's result

checking for X11/Xlib.h... yes

checking X11/Xlib-xcb.h usability... yes

checking X11/Xlib-xcb.h presence... no

configure: WARNING: X11/Xlib-xcb.h: accepted by the compiler, rejected by the preprocessor!

configure: WARNING: X11/Xlib-xcb.h: proceeding with the compiler's result

checking for X11/Xlib-xcb.h... yes

checking X11/Xutil.h usability... yes

checking X11/Xutil.h presence... no

configure: WARNING: X11/Xutil.h: accepted by the compiler, rejected by the preprocessor!

configure: WARNING: X11/Xutil.h: proceeding with the compiler's result

checking for X11/Xutil.h... yes
El 28 nov 2019, a las 13:21, Dr. Jürgen Sauermann <address@hidden> escribió:
Hi,

I would at least expect something like

CXXFLAGS="-I /opt/X11/include" ./configure

(if that is the directory where your header files live).

Best Regards,
Jürgen

On 11/28/19 1:05 PM, Antonio Juan wrote:
So I need to change

CXXFLAGS="-I /opt/X11" ./configure

With this I not get anything
I'm not sure where to point I have the X11 in my /opt/X11

export PKG_CONFIG_PATH=/usr/local/Cellar/gtk+/2.24.32_3/lib/pkgconfig:/opt/X11/lib/pkgconfig:/usr/local/Cellar/cairo/1.16.0_2/lib/pkgconfig

Thanks for your time
El 28 nov 2019, a las 12:54, Dr. Jürgen Sauermann <address@hidden> escribió:
Hi Antonio,

For X11 and friend to work you need two different things:

1. header files, e.g. xcb.h, Xlib.h, etc.
2. library files, e.g. libxcb.so.1, libX11.so.6, etc.

These days libraries are often shipped in two different packages: one that
contains only the (shared) libraries and the other package contains the
corresponding header files. That second packages normally ends with "-dev".

For example (output from aptitude search libx11):

i libx11-6 - X11 client-side library
i libx11-dev - X11 client-side library (development headers)

In your case the ./configure script cannot find the header files which means that either the the -dev package
was not installed, or they were installed in an unusual place. In the latter case you can
tell ./configure where else to look, for example:

CXXFLAGS = -I /usr/somewhere_else ./configure [other configure options...]

Best Regards,
Jürgen Sauermann

On 11/28/19 12:33 PM, Antonio Juan wrote:
Hi i will check,

The compilation ended, and done sudo make install, but I still have the same problem
⎕PLOT 1 2 3 4 5

SYNTAX ERROR+

∩ ⎕PLOT 1 2 3 4 5

^

)MORE

⎕PLOT is not available because one or more of its build prerequisites (in

particular libX11.so) was missing, or because it was explicitly

disabled in ./configure.

But different from the first one, it was no libxcb library was found, I suspect that at this point I also need to change something in the configure in order to compile with X11

Which I get:

checking xcb/xcb.h usability... no

checking xcb/xcb.h presence... no

checking for xcb/xcb.h... no

checking X11/Xlib.h usability... no

checking X11/Xlib.h presence... no

checking for X11/Xlib.h... no

checking X11/Xlib-xcb.h usability... no

checking X11/Xlib-xcb.h presence... no

checking for X11/Xlib-xcb.h... no

checking X11/Xutil.h usability... no

checking X11/Xutil.h presence... no

checking for X11/Xutil.h... no

Thanks for your help
El 28 nov 2019, a las 12:22, Dr. Jürgen Sauermann <address@hidden> escribió:
Hi again,

another thing that you may want to check is that your config.h (which is
generated by ./configure) contains the following lines:

/* Enable GNU extensions on systems that have them. */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE 1
#endif

Best Regards,
Jürgen

On 11/28/19 12:11 PM, Dr. Jürgen Sauermann wrote:
Hi Antonio,

that seems to be an incompatibility between the commonly used libs and the Apple libs.
Nothing that I could (or should) do anything about in GNU APL. As far as I can see you could
probably remove the POLLRDHUP without much harm so that the offending line reads:

pfd.events = POLLIN;

Best Regards,
Jürgen

On 11/28/19 11:58 AM, Antonio Juan wrote:
Hi thanks, I thinks that will be important to put the output of this things:

➜ svn co http://svn.savannah.gnu.org/svn/apl/trunk gnu-apl

...

...
A gnu-apl/install-sh

Checked out revision 1206.

➜ export PKG_CONFIG_PATH=/usr/local/Cellar/gtk+/2.24.32_3/lib/pkgconfig:/opt/X11/lib/pkgconfig:/usr/local/Cellar/cairo/1.16.0_2/lib/pkgconfig

➜ ./configure

checking for gcc... gcc

checking whether the C compiler works... yes

checking for C compiler default output file name... a.out

checking for suffix of executables...

checking whether we are cross compiling... no

checking for suffix of object files... o

checking whether we are using the GNU C compiler... yes

checking whether gcc accepts -g... yes

checking for gcc option to accept ISO C89... none needed

checking whether gcc understands -c and -o together... yes

checking how to run the C preprocessor... gcc -E

checking for grep that handles long lines and -e... /usr/local/bin/ggrep

checking for egrep... /usr/local/bin/ggrep -E

checking for ANSI C header files... yes

checking for sys/types.h... yes

checking for sys/stat.h... yes

checking for stdlib.h... yes

checking for string.h... yes

checking for memory.h... yes

checking for strings.h... yes

checking for inttypes.h... yes

checking for stdint.h... yes

checking for unistd.h... yes

checking minix/config.h usability... no

checking minix/config.h presence... no

checking for minix/config.h... no

checking whether it is safe to define __EXTENSIONS__... yes

checking for a BSD-compatible install... /usr/local/bin/ginstall -c

checking whether build environment is sane... yes

checking for a thread-safe mkdir -p... /usr/local/bin/gmkdir -p

checking for gawk... gawk

checking whether make sets $(MAKE)... yes

checking for style of include used by make... GNU

checking whether make supports nested variables... yes

checking dependency style of gcc... gcc3

checking whether to enable maintainer-specific portions of Makefiles... no

checking build system type... x86_64-apple-darwin19.0.0

checking host system type... x86_64-apple-darwin19.0.0

checking how to print strings... printf

checking for a sed that does not truncate output... /usr/local/bin/gsed

checking for fgrep... /usr/local/bin/ggrep -F

checking for ld used by gcc... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld

checking if the linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) is GNU ld... no

checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B

checking the name lister (/usr/bin/nm -B) interface... BSD nm

checking whether ln -s works... yes

checking the maximum length of command line arguments... 196608

checking whether the shell understands some XSI constructs... yes

checking whether the shell understands "+="... yes

checking how to convert x86_64-apple-darwin19.0.0 file names to x86_64-apple-darwin19.0.0 format... func_convert_file_noop

checking how to convert x86_64-apple-darwin19.0.0 file names to toolchain format... func_convert_file_noop

checking for /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld option to reload object files... -r

checking for objdump... objdump

checking how to recognize dependent libraries... pass_all

checking for dlltool... no

checking how to associate runtime and link libraries... printf %s\n

checking for g++... g++

checking whether we are using the GNU C++ compiler... yes

checking whether g++ accepts -g... yes

checking dependency style of g++... gcc3

checking for ar... ar

checking for archiver @FILE support... no

checking for strip... strip

checking for ranlib... ranlib

checking command to parse /usr/bin/nm -B output from gcc object... ok

checking for sysroot... no

checking for mt... no

checking if : is a manifest tool... no

checking for dsymutil... dsymutil

checking for nmedit... nmedit

checking for lipo... lipo

checking for otool... otool

checking for otool64... no

checking for -single_module linker flag... yes

checking for -exported_symbols_list linker flag... yes

checking for -force_load linker flag... yes

checking for dlfcn.h... yes

checking for objdir... .libs

checking if gcc supports -fno-rtti -fno-exceptions... yes

checking for gcc option to produce PIC... -fno-common -DPIC

checking if gcc PIC flag -fno-common -DPIC works... yes

checking if gcc static flag -static works... no

checking if gcc supports -c -o file.o... yes

checking if gcc supports -c -o file.o... (cached) yes

checking whether the gcc linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes

checking dynamic linker characteristics... darwin19.0.0 dyld

checking how to hardcode library paths into programs... immediate

checking for dlopen in -ldl... yes

checking whether a program can dlopen itself... yes

checking whether a statically linked program can dlopen itself... yes

checking whether stripping libraries is possible... yes

checking if libtool supports shared libraries... yes

checking whether to build shared libraries... yes

checking whether to build static libraries... yes

checking how to run the C++ preprocessor... g++ -E

checking for ld used by g++... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld

checking if the linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) is GNU ld... no

checking whether the g++ linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes

checking for g++ option to produce PIC... -fno-common -DPIC

checking if g++ PIC flag -fno-common -DPIC works... yes

checking if g++ static flag -static works... no

checking if g++ supports -c -o file.o... yes

checking if g++ supports -c -o file.o... (cached) yes

checking whether the g++ linker (/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld) supports shared libraries... yes

checking dynamic linker characteristics... darwin19.0.0 dyld

checking how to hardcode library paths into programs... immediate

checking whether we are using the GNU C++ compiler... (cached) yes

checking whether g++ accepts -g... (cached) yes

checking dependency style of g++... (cached) gcc3

checking for gcc... (cached) gcc

checking whether we are using the GNU C compiler... (cached) yes

checking whether gcc accepts -g... (cached) yes

checking for gcc option to accept ISO C89... (cached) none needed

checking whether gcc understands -c and -o together... (cached) yes

checking whether g++ accepts -rdynamic... no

checking ncurses.h usability... yes

checking ncurses.h presence... yes

checking for ncurses.h... yes

checking for term.h... yes

checking execinfo.h usability... yes

checking execinfo.h presence... yes

checking for execinfo.h... yes

checking fcntl.h usability... yes

checking fcntl.h presence... yes

checking for fcntl.h... yes

checking fftw3.h usability... yes

checking fftw3.h presence... yes

checking for fftw3.h... yes

checking for inttypes.h... (cached) yes

checking for stdint.h... (cached) yes

checking for stdlib.h... (cached) yes

checking for string.h... (cached) yes

checking for strings.h... (cached) yes

checking for unistd.h... (cached) yes

checking sys/un.h usability... yes

checking sys/un.h presence... yes

checking for sys/un.h... yes

checking ext/atomicity.h usability... no

checking ext/atomicity.h presence... no

checking for ext/atomicity.h... no

checking xcb/xcb.h usability... no

checking xcb/xcb.h presence... no

checking for xcb/xcb.h... no

checking X11/Xlib.h usability... no

checking X11/Xlib.h presence... no

checking for X11/Xlib.h... no

checking X11/Xlib-xcb.h usability... no

checking X11/Xlib-xcb.h presence... no

checking for X11/Xlib-xcb.h... no

checking X11/Xutil.h usability... no

checking X11/Xutil.h presence... no

checking for X11/Xutil.h... no

checking utmpx.h usability... yes

checking utmpx.h presence... yes

checking for utmpx.h... yes

checking for xcb/xproto.h... no

checking for stdbool.h that conforms to C99... no

checking for _Bool... no

checking for inline... inline

checking for int32_t... yes

checking for int64_t... yes

checking for off_t... yes

checking for size_t... yes

checking for uint32_t... yes

checking for uint64_t... yes

checking for uint8_t... yes

checking for error_at_line... no

checking for stdlib.h... (cached) yes

checking for unistd.h... (cached) yes

checking for sys/param.h... yes

checking for getpagesize... yes

checking for working mmap... yes

checking for floor... yes

checking for memset... yes

checking for munmap... yes

checking for pow... yes

checking for sqrt... yes

checking for strchr... yes

checking for strerror... yes

checking for socket in -lsocket... no

checking for yp_all in -lnsl... no

checking for setupterm in -lncurses... yes

checking for __atomic_fetch_add_4 in -latomicity... no

checking for backtrace in -lexecinfo... no

checking for acosh in -lm... yes

checking for sem_init in -lpthread... yes

checking for dlopen in -ldl... (cached) yes

checking for fftw_plan_dft in -lfftw3... yes

checking for xcb_connect in -lxcb... no

checking for XOpenDisplay in -lX11... no

checking for XGetXCBConnection in -lX11-xcb... no

checking for SQLite3 library >= 3.0.0... yes

cat: /include/sqlite3.h: No such file or directory

./configure: line 18214: test: !=: unary operator expected

configure: WARNING: Cannot find SQLITE_VERSION macro in sqlite3.h header to retrieve SQLite version!

checking for pg_config... no

checking for pkg-config... /usr/local/bin/pkg-config

checking pkg-config is at least version 0.9.0... yes

checking for XCBLIBS... yes

checking for pcre2_compile_32 in -lpcre2-32... yes

checking for GTK... yes

checking whether CPU has rdtsc (read CPU cycle counter) opcode... yes

checking whether sem_init() works... no

checking whether pthread_setaffinity_np is available... no

checking whether OSAtomicAdd32Barrier() is available... no

checking whether atomic_add_32_nv() is available... no

checking if we are compiling for Android... no

checking if we want to build an erlang interface (implies libapl.so)... no

checking if we want to build libapl.so... no

checking if we want to build libpython_apl.so... no

checking whether internal performance counters shall be enabled)... no

checking whether to remember the history of APL values (debug feature)... no

checking whether gprof profiling shall be enabled... no

checking whether gcov coverage testing shall be enabled... no

checking whether dynamic logging shall be enabled... no

checking whether value flags shall be traced... no

checking how picky internal tests shall be... 1

checking security level (0=none, 1=configured in preferences, 2=all)... 0

checking how many CPU cores shall be used by APL (experimental!)... 0

checking which type of socket APserver shall use... 0

checking which port number APserver shall use for TCP or UDP sockets... 16366

checking which port name APserver shall use for unix ports... /tmp/GNU-APL/APserver

checking how long a short APL value shall be at most... 12

checking whether visible markers shall be used... no

checking whether support for rational numbers is desired ... no

checking whether we compile for an i686 CPU... no

checking that generated files are newer than configure... done

configure: creating ./config.status

config.status: creating Makefile

config.status: creating build/Makefile

config.status: creating debian/Makefile

config.status: creating debian/source/Makefile

config.status: creating doc/Makefile

config.status: creating erlang/Makefile

config.status: creating erlang/apl.erl

config.status: creating gnu-apl.d/Makefile

config.status: creating gnu-apl.d/preferences

config.status: creating HOWTOs/Makefile

config.status: creating rpm/Makefile

config.status: creating rpm/apl.spec

config.status: creating src/Makefile

config.status: creating src/APs/Makefile

config.status: creating src/Gtk/Makefile

config.status: creating src/emacs_mode/Makefile

config.status: creating src/native/Makefile

config.status: creating src/sql/Makefile

config.status: creating src/testcases/Makefile

config.status: creating src/workspaces/Makefile

config.status: creating support-files/Makefile

config.status: creating support-files/105-key-International-Keyboard/Makefile

config.status: creating support-files/Dirk/Makefile

config.status: creating support-files/Dyalog-Keyboard/Makefile

config.status: creating support-files/Juergen-Mint-19/Makefile

config.status: creating support-files/old-Keyboard/Makefile

config.status: creating support-files/OS-X-Keyboard/Makefile

config.status: creating support-files/Unicomp-Keyboard/Makefile

config.status: creating support-files/WASD-Keyboard/Makefile

config.status: creating tools/Makefile

config.status: creating websock/Makefile

config.status: creating websock/client/Makefile

config.status: creating websock/server/Makefile

config.status: creating workspaces/Makefile

config.status: creating wslib3/Makefile

config.status: creating wslib4/Makefile

config.status: creating wslib5/Makefile

config.status: creating wslib5/APLComponentFiles/Makefile

config.status: creating wslib5/iso-apl-cf/Makefile

config.status: creating config.h

config.status: executing depfiles commands

config.status: executing libtool commands

configure: creating ./src//buildtag.hh

*** svnversion not installed: keeping old buildtag

configure: creating ./src/makefile.h

configure: creating ./src/configure_args.cc

configure: saving configure options in ./configure_options

➜ make

...

After long long output

...

g++ -DHAVE_CONFIG_H -I. -I.. -Wall -I sql -Werror -g -O2 -MT apl-Quad_GTK.o -MD -MP -MF .deps/apl-Quad_GTK.Tpo -c -o apl-Quad_GTK.o `test -f 'Quad_GTK.cc' || echo './'`Quad_GTK.cc

Quad_GTK.cc:393:35: error: use of undeclared identifier 'POLLRDHUP'

fds[w].events = POLLIN | POLLRDHUP;

^

Quad_GTK.cc:421:26: error: use of undeclared identifier 'POLLRDHUP'

pfd.events = POLLIN | POLLRDHUP;

^

2 errors generated.

make[3]: *** [apl-Quad_GTK.o] Error 1

make[2]: *** [all-recursive] Error 1

make[1]: *** [all-recursive] Error 1

make: *** [all] Error 2

I think that this could help, thanks for all your time

Sincerely,

Toni
El 28 nov 2019, a las 11:24, Dr. Jürgen Sauermann <address@hidden> escribió:
Hi Antonio,

I fixed the -Wreturn-type warning in SVN 1206.

Best Regards,
Jürgen Sauermann

On 11/28/19 10:31 AM, Antonio Juan wrote:
Thanks for your replies I'm using OSX Catalina 10.15.1,

Like I commented, I have gnu-apl installed with homebrew and it works well except for the Plot feature.

So it was a problem with X11 and GTK, for the X11 Lib I need Xquartz from https://www.xquartz.org/

This puts the X11 on /opt/X11, I also have this strange behavior, that I asked on stack overflow: https://stackoverflow.com/questions/59072106/do-not-understanig-mac-osx-x11

Then I managed to Install Gtk with home-brew I installed gtk+ and gtk+3, like this:

https://stackoverflow.com/a/20114598/1900722

export PKG_CONFIG_PATH=/opt/X11/lib/pkgconfig

brew info gtk+3

gtk+3: stable 3.24.12 (bottled)

brew info gtk

gtk+: stable 2.24.32 (bottled), HEAD

https://stackoverflow.com/questions/20098862/how-to-install-gtk-on-osx-for-use-with-g-gcc-compiler
Anf during make I get this error:

g++ -DHAVE_CONFIG_H -I. -I.. -Wall -I sql -Werror -g -O2 -MT apl-Quad_PLOT.o -MD -MP -MF .deps/apl-Quad_PLOT.Tpo -c -o apl-Quad_PLOT.o `test -f 'Quad_PLOT.cc' || echo './'`Quad_PLOT.cc

Quad_PLOT.cc:79:1: error: control reaches end of non-void function

[-Werror,-Wreturn-type]

}

^

1 error generated.

make[3]: *** [apl-Quad_PLOT.o] Error 1

make[2]: *** [all-recursive] Error 1

make[1]: *** [all-recursive] Error 1

make: *** [all] Error 2

I hope that I could explain it.
El 27 nov 2019, a las 16:48, Peter Teeson <address@hidden> escribió:
Hi:
The Macintosh operating system used to be called OS X

Then it was renamed macOS. That was around the time Apple created a spin off iOS for their mobile devices.

So these days people refer to the hardware as Macs (both desktop and laptop)

And iPhone, iPad, iWatch for their mobile devices.

What make of Mac do you have? What version of macOS?

If you have questions I will try to help.

Peter
On Nov 27, 2019, at 7:12 AM, Dr. Jürgen Sauermann <mail@xn--jrgen-sauermann-zvb.de> wrote:
Hi,

there is a very nice description of how to install GNU APL on Macintosh written
by Peter Teeson. You can find in in the HOWTOs directory.

I don't know if Macintosh uses OSX, but Peters document is anyhow worthwhile reading.

BTW I have updated the ⎕PLOT error message to be more specific as to which library is missing.

Best Rgeards,
Jürgen Sauermann

On 11/27/19 12:32 PM, Antonio Juan wrote:
Thanks; I need to completely read the GNU-APL DOC, sorry about that

You are right the problem is with the libxcb.

⎕plot 1 2 3 4 5

SYNTAX ERROR+

⎕PLOT 1 2 3 4 5

^

)MORE

⎕PLOT is not available because either no libxcb library was found on this

system when GNU APL was compiled, or because it was disabled in ./configure.

Exist a tutorials for building gnu-apl in OSX

Thanks for your time
Toni
El 26 nov 2019, a las 17:27, Dr. Jürgen Sauermann <address@hidden> escribió:
Hi Toni,

the + character after SYNTAX ERROR (or any other APL error) indicates that there
is more information available regarding that error. The additional information
can be displayed with command )MORE.

I suspect that in this particular case libraries needed for plotting (essentially libX11.so,
libxcb.so, and libX11-xcb.so) were missing on the platform where GNU APL was compiled
(i.e. your own machine if you compiled from source or the build machine of a package if
you installed a binary package).

For ⎕PLOT to work, you may need to compile the interpreter from source with the required
X libraries installed beforehand.

Best Regards,
Jürgen Sauermann

On 11/26/19 2:27 PM, Antonio Juan wrote:
Thanks for this awesome software. I have installed gnu plot 1.8 from brew package. It works well, and good integration with emacs. So it is a good environment for learning APL.

The only think is that when I try to plot I always get the following error:

       ⎕PLOT 0 1 ¯1 2 ¯2 3 ¯3
SYNTAX ERROR+
      ⎕PLOT 0 1 ¯1 2 ¯2 3 ¯3
      ^

I do not see anywhere, if is needed to load a workspace, or the needed for some environment configuration during installation. So really I do not know how to proceed.

Thanks for your time

Toni

From:	Antonio Juan
Subject:	Re: Doubt about plotting on MAC OS X Catalina
Date:	Thu, 28 Nov 2019 16:39:06 +0100