OpenEuphoria

2. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 21, 2019
• 2420 views

I get a similar error when trying to compile in Ubuntu 18.04. Ubuntu did not even have gcc, nor allow me to install gcc, without some deep searching on the web to find half a dozen "solutions" which didn't work. Once I found one which allowed me to install gcc, and build-essential, I got the same error as you did.

I wish I could be more help, but all I can say is that this works out of the box with Linux Mint. And since Mint is an offshoot of Ubuntu, with the broken parts fixed, then it's possible to also fix Ubuntu - but I won't be trying that.

Ubuntu, like Microsoft, has apparently decided that computers are "content delivery systems", no longer usable for "computing".

4. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 21, 2019
• 2427 views

In between my previous post and now, I have installed Mint 19.2 Tina in a triple-boot machine, and am using this now to post. After installing, I had to do the following:

sudo apt-get update
sudo apt-get install gcc (should already be latest)
sudo apt-get install build-essential (not installed by default)

This fails with the same error. Mint 18 works fine. I guess I'm sticking with 18.

EDIT: I've -perhaps - found the solution here: https://stackoverflow.com/questions/46827433/g-compile-error-rodata-can-not-be-used-when-making-a-shared-object-recomp

However, I certainly don't have the skill to make this work. Somebody?

6. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 21, 2019
• 2401 views

euc -extra-lflags="-no-pie" search.ex 

This works with plain text Euphoria, e.g. puts(1,"Hello World!"), but fails to compile even a one-liner that uses GtkEngine.e:

include GtkEngine.e 

Segmentation fault (core dumped)

The problem is probably in EuGTK, but finding it will be a hassle.

So, for now, compiling EuGTK programs is out (not that it is really necessary, bound programs work fine, and bind is so much faster than compiling).

EDIT:

Good(ish) news, I found the (or one of the) problems, which can be fixed easily: in or around line 224 in GtkEngine.e, where it assigns app_name = , change the line to match the one below:

	runt_dir = gtk_str_func("g_get_user_runtime_dir"),  
	app_name = filename(cmd[2]), -- update this one 
	prg_name = find_app(), 
	def_lang = gtk_func("gtk_get_default_language"), 

Having done this, several programs now compile and run correctly. However, to test all 250 or more will take some time!

I now have an 8-core processor. Is there any way to make euc use several of those, rather than just one?

8. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 22, 2019
• 2322 views

Great! Thanks.

By the way, I have compiled successfully nearly all of the 250 demo programs (left it running overnight).

The simple one-line mod to EuGTK mentioned earlier is all that was needed.

BTW, I suppose WEE's compile function will need to be modified, also.

C.K.Lester was kind enough to reorganize and rename all those test[n] programs so that the program names are more meaningful.

I will post a new version of EuGTK just as soon as I can match the docs to the new names.

10. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 22, 2019
• 2335 views

Well, I can't see how anything could have gone wrong, since I just installed directly from the download. Neither Ubuntu 18.04 nor Mint 19 (Tina), downloaded yesterday, come with gcc installed, but Mint allows you to apt-get it easily enough.

Ubuntu forgot to include the repos for gcc, so you have to edit hidden files manually to add them. Ubuntu also does not allow you to associate *.ex programs with Euphoria (eui) without a great hassle editing hidden text files and disabling another editor. Mint allows that just by right clicking, selecting properties/open with, and choosing eui. Ubuntu 18 disables the open with button. Only Ubuntu "approved" programs can be associated with your files.

Pretty sad, really.

The latest EuGTK includes an html file: demos/documentation/eu_on_ubuntu.html which has details on setting up Ubuntu to open *.ex (and all text/plain mime type files) with eui, by stealing them from gedit.

12. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 22, 2019
• 2282 views

No. Look it up online - hundreds of questions about how to fix these two things.

And gcc would not load on Ubuntu because the repository was not included. Plenty of complaints about that, also.

User-written scripts in the bin directory? Not even /usr/local/bin, not going there, but thanks anyway.

14. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 23, 2019
• 2281 views

Note that it isn't impossible to get gcc on Ubuntu, it's just not intuitive. Or installed automatically with the distro, as it used to be.

It's nearly as much trouble as setting up a working compiler for Windows 10. Neither should be a big deal, but the prevailing attitude at both Microsoft and Ubuntu is that people want just an entertainment box.

But I have a TV for that. I bought a computer because I can tell it what to do (at least for now).

16. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by Senator Aug 24, 2019
• 2212 views

euc -build-dir build -extra-lflags="-no-pie" -makefile appname.ex 
make -j8 -f appname.mak -C build 

I have been trying to write a little command line replacement program for euc to use until the developer(s) create a proper fix, but I am having problems passing a j value to the make command:

-- Euc.ex 
 
include std/filesys.e 
include std/convert.e 
 
sequence cmd, appname, appname_mak 
integer CORES = 1,  -- default 
CORES_MAX = 8  -- system dependent 
 
cmd = command_line()  
 
if length(cmd) = 4 then 
   CORES = to_number(cmd[4]) 
   if CORES > CORES_MAX then 
      CORES = CORES_MAX 
   end if 
end if   
 
if length(cmd) >=3 then 
    appname = cmd[3] 
    appname_mak = filebase(appname)&".mak" 
    system_exec("euc -build-dir build -extra-lflags=\"-no-pie\" -makefile"&' '&appname)  
    system ("make -j8 -f"&' '&appname_mak&' '&" -C build")  -- works 
    --system("make -j"&CORES&' '&"-f"&' '&appname_mak&' '&" -C build") -- fails 
    -- fails with message: "make: the '-j' option requires a positive integer argument" 
end if 

Suggestions will be appreciated.

Regards,

18. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by Senator Aug 24, 2019
• 2201 views

 system(text:format("make -j[] -f []_mak -C build",{CORES,appname})) 
  
 -- might require filename(appname) or whatever to remove path and extension. 

Ok, Thanks ... This works:

#!/home/ken/euphoria-4.1.0-Linux-x64/bin/eui 
-- 
--  For Ubuntu  based Linux distributions since 17.10 
 
--  Euc.ex  <== compile and place in the Euphoria bin directory. 
--  passes flags to compiler necessary to compile Euphoria programs 
-- also allows passing a number  of jobs flag to compiler: 
 
-- usage:  
--  eui Euc.ex search.ex 8     -- where 8 is the number of jobs/cores to utilize 
--  Euc search.ex 8                -- if Euc.ex is compiled and placed in bin directory       
--  eui Euc.ex search.ex        -- default compile with only one core utilized 
 
--  Based on ghaberak's compile script from OpenEuForum: 
--  https://openeuphoria.org/forum/m/134187.wc 
--  euc -build-dir build -extra-lflags="-no-pie" -makefile appname.ex  
--  make -j8 -f appname.mak -C build  
 
--  https://openeuphoria.org/forum/m/134183.wc 
--  As of Ubuntu 17.10, their GCC uses -fPIE (position independent executable)  
--  as the default over -fPIC (position independent code).  
--  You just need to add -extra-lflags="-no-pie" to the command line.  
--  euc -extra-lflags="-no-pie" search.ex  
 
include std/filesys.e 
include std/convert.e 
include std/text.e 
 
sequence cmd, appname, appname_mak 
integer CORES = 1,  -- default 
CORES_MAX = 8  -- system dependent 
 
cmd = command_line()  
if length(cmd) = 3 then 
   system_exec("euc -extra-lflags=\"-no-pie\""&' '& cmd[3]) 
elsif length(cmd) = 4 then 
   CORES = to_number(cmd[4]) 
   if CORES > CORES_MAX then CORES = CORES_MAX end if 
    appname = cmd[3] 
    appname_mak = filebase(appname)&".mak" 
    system_exec("euc -build-dir build -extra-lflags=\"-no-pie\" -makefile"&' '&appname)  
    system(text:format("make -j[] -f [] -C build",{CORES,appname_mak})) -- Thanks Irv! 
end if 

Thanks, Ken

20. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 27, 2019
• 2126 views

https://askubuntu.com/questions/1080043/how-to-install-gcc-in-ubuntu-18-04

It's not that complicated, once you discover that to install gcc, you don't. You install build-essential.

@Videonauth In Ubuntu 18.04 gcc is not installed by default – Arun Oct 1 '18 at 16:04

You should first run sudo apt update then sudo apt install build-essential – Arun Oct 1 '18 at 16:02

https://askubuntu.com/questions/tagged/file-association

Plenty of questions going back several years. That indicates that Ubuntu intends for it to work that way.

Sadly, many of the methods suggested to fix this just don't work. Pretty frustrating, when Mint does it correctly, out of the box.

22. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 27, 2019
• 2064 views

Well, no. If I do that, then when I click on the program icon, I get a pop-up dialog that says:

"browser.ex" is an executable program, do you want to: Run in Terminal, Display, Cancel, Run?

Run In Terminal and Run buttons do run the program as expected, but Display loads the default text editor, which is not WEE on Ubuntu.

So, just running the program takes an extra, useless step, and if I decide to edit, I have to cancel, select and use a right-click to choose WEE.

If I can set "Open With" as desired i.e. Open With eui, then clicking runs the program without the extra dialog. Regardless of whether there's a shebang or executable permission. Ubuntu disallows this option.

Either way, my choice of editor is right there with a right mouse click.

Often I will swap the defaults, so that clicking .ex files always opens them in WEE, if I'm doing a lot of editing. For testing, swap it back to eui. Again, something not "allowed" on Ubuntu.

24. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 29, 2019
• 1999 views

Yep, it's those darn meddling Gnomes again!

26. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 29, 2019
• 1973 views

I don't write terminal mode programs. That's so 1980's.

I use either WEE or my own BEAR editor to edit and run programs, as you suggest. BEAR works better for me, because both Euphoria and GTK documents are in html form, and BEAR can find and display the relevant doc pages right beside my source code edit window.

Wee works almost as well, and is better in some respects (having multi-tab editing for include files, for example). That's something I could add to the BEAR if I were so inclined.

28. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 29, 2019
• 1970 views

You are right, but does Euphoria do any of those things?

Didn't think so. Perhaps you can contribute something along those lines.

30. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Aug 30, 2019
• 1955 views

The reason for trying Ubuntu originally was because we had a new Euphoria user recently who was trying to use Ubuntu and learn Euphoria. Half the questions and difficulties were the result of Ubuntu being unfriendly to programmers.

A lot of time was wasted.

Switching to one of the dozens of other, more friendly and "bling free" distros is a better choice for me.

32. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by euphoric (admin) Aug 30, 2019
• 1935 views

Remember, we're trying to remain apolitical.

34. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by jimcbrown (admin) Aug 30, 2019
• 1926 views

They could make a GCC package alias so that it automatically tries to install build-essential if one tries to install gcc - that probably does the right thing most of the time.

Alternatively, they could go a little bit softer and say "gcc not found - suggested: did you mean to try apt install build-essentials"

Just saying GCC not found without any additional hints is not very user friendly.

36. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by Pirx Aug 31, 2019
• 1902 views

GCC itself is not very user friendly and finding/installing it on Ubuntu is definitely easier than using it. Your argument doesn't make sense. GCC is a tool for advanced computer users who should be able to read the documentation, use online resources and solve minor problems. This whole topic sounds like an option to install/use GCC on Ubuntu has been removed, while in fact what we have here is a very minor isue and solving it shouldn't be a problem for any developper/advanced user.

38. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Sep 02, 2019
• 1870 views

Could we please address the original problem? And that is: what once worked, no longer does. (And for an unknown number of would-be new Eu users, never did, I might add.)

When I went to the OpenEuphoria.org home page this morning, I was greeted with this (in a little box):

Can be interpreted or compiled:  
    $ eui hello.ex  
    Hello, World!  
    $ euc hello.ex  
    Building... gcc -o hello hello.c  
    $ ./hello  
    Hello, World!  

Ok,

C:\Users\Irv\demos>euc hello.ex 
Build directory: build-622614\ 
Translating code, pass: 1 2 3 generating  
Compiling with GCC 
Compiling 14% init-.c 
Couldn't compile file 'init-.c' 
Status -1 Command:gcc -DEWINDOWS -fomit-frame-pointer -c -w -fsigned-char -o2 -m64 -IC:/Euphoria -ffast-math init-.c 

Well, of course Windows 10 doesn't come with gcc, or any compiler. I should know that, being an experienced systems programmer who just happens to be looking for a simple-easy-to-use programming language, right?

So I join the beginners, and read the Eu manual, where I find:

6.4.2 C Compilers Supported

The Translator currently works with GNU C on Unix-like OSes, GNU C on Windows from MinGW or Cygwin using the -gcc option and with Watcom C (the default) on Windows. These are all free compilers.

GNU C will exist already on your Unix system. The others can be downloaded from their respective Web sites.

...

I guess the underlined part is no longer correct, depending upon how recent a version of Linux you have.

But that's not a problem. All you guys who slop the hogs at the server farm know how to install gcc, right? Why shouldn't a rank beginner who has just found an "easy to use" programming language that "you can compile" be able to do that too?

So once the rank beginner gets a geek friend to install gcc, all is good, right? Maybe, maybe not. Depends upon how recent a version of Linux you have. As well as which distro. See the original 2 posts for confirmation.

Summary: it would be good if there was a Euphoria webpage which

• Supplies step-by-step instructions for the Windows users
• Warns about changes necessary when using MinGW or Cygwin or Watcom (do they all still work?)
• Provides information for Linux users about installing gcc
• Warns about changes which prevent euc from working in the latest Linux versions
• Provides scripts to fix that problem.

And perhaps make some recommendations based on actual experience with what works for the type of programmer who would be interested in using Euphoria.

Granted, that information can be found buried somewhere in this forum, but it if you don't know what you're looking for, you're not likely to find it.

40. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by irv Sep 03, 2019
• 1715 views

You have, no doubt, seen those websites where you answer a series of questions, and eventually are presented with an appropriate option or options based on your answers. I'd like to see that here.

Start with "Do you want to use Euphoria on a Windows computer, a Linux computer, or a computer running OS-X?

Does it have a 32-bit or 64-bit OS (here's how to tell....)

etc.

I wouldn't mind starting such a page, if I could remember the necessary steps. But someone with more experience with Windows would have to help with that part.

42. Re: Compile broken after upgrading to Ubuntu 18.04 LTS

• Posted by euphoric (admin) Sep 04, 2019
• 1711 views

You're just showing off, Pete! haha!

I like it!