emacs compliation error (ada mode)

emacs compliation error (ada mode)

[pincerfae]

In trying out a 'hello world' tutorial, I keep getting an error message of this sort:

Compilation started at Mon Jun 15 13:58:27

./hello_world
'.' is not recognized as an internal or external command,
operable program or batch file.

Compilation exited abnormally with code 1 at Mon Jun 15 13:58:27


the hello_world.exe program is there in the project folder. what am I missing?

I'm using emacs 24.2 with ada mode on win7.

Re: emacs compliation error (ada mode)

[Simon Wright]

pincerfae@gmail.com writes:

> In trying out a 'hello world' tutorial, I keep getting an error
> message of this sort:
>
> Compilation started at Mon Jun 15 13:58:27
>
> ./hello_world
> '.' is not recognized as an internal or external command,
> operable program or batch file.
>
> Compilation exited abnormally with code 1 at Mon Jun 15 13:58:27
>
>
> the hello_world.exe program is there in the project folder. what am I
> missing?

You're on Windows, and I think you must - by design or not - be running
cmd as your shell.

cmd would interpret "./hello_world" as "run the program '.' and pass it
the switch '/hello_world'". Cmd needs a backslash, ".\hello_world".

> I'm using emacs 24.2 with ada mode on win7.

You don't say which ada-mode you're using. M-x ada-mode-version should
tell you.

Here, with 5.1.8, I think you'd customise Ada Build Run Cmd in the Ada
Build subgroup from ./${main} to .\${main} - in your case it may be in
the top-level Ada customisation group and just called Ada Run Cmd or
something like that.

Re: emacs compliation error (ada mode)

[Dennis Lee Bieber]

On Tue, 16 Jun 2015 08:26:57 +0100, Simon Wright <simon@pushface.org>
declaimed the following:

>
>You're on Windows, and I think you must - by design or not - be running
>cmd as your shell.
>
>cmd would interpret "./hello_world" as "run the program '.' and pass it
>the switch '/hello_world'". Cmd needs a backslash, ".\hello_world".
>
	It doesn't even need the .\

	Unlike Linux/UNIX shells which don't include the current directory as a
default search for executables, Windows command processor always looks in
the current directory; just a simple "hello_world" will suffice.

>
>Here, with 5.1.8, I think you'd customise Ada Build Run Cmd in the Ada
>Build subgroup from ./${main} to .\${main} - in your case it may be in
>the top-level Ada customisation group and just called Ada Run Cmd or
>something like that.

	Ah, but I can't speak for running from within an editor -- I think if
it uses current working directory, again no ./ or .\ is needed.
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

Re: emacs compliation error (ada mode)

[Jean François Martinez]

On Tuesday, June 16, 2015 at 2:34:58 PM UTC+2, Dennis Lee Bieber wrote:
> On Tue, 16 Jun 2015 08:26:57 +0100, Simon Wright
> declaimed the following:

> 	It doesn't even need the .\
> 
> 	Unlike Linux/UNIX shells which don't include the current directory as a
> default search for executables, Windows command processor always looks in
> the current directory; just a simple "hello_world" will suffice.
> 

Only by default and you can easily get DOS-like behaviour by adding "." in your PATH.  But you should never do it since this is a serious security risk.


Jean François Martinez

Re: emacs compliation error (ada mode)

[Stephen Leake]

pincerfae@gmail.com writes:

> In trying out a 'hello world' tutorial, I keep getting an error message of this sort:
>
> Compilation started at Mon Jun 15 13:58:27
>
> ./hello_world
> '.' is not recognized as an internal or external command,
> operable program or batch file.

This looks like an error message from the cmd shell. "./" is sh shell
syntax; it assumes "." is not in PATH.

What does M-: shell-file-name show? If it's something that ends in
"cmdproxy.exe", then you are running the cmd shell.

> Compilation exited abnormally with code 1 at Mon Jun 15 13:58:27
>
>
> the hello_world.exe program is there in the project folder. what am I missing?
>
> I'm using emacs 24.2 with ada mode on win7.

What version of ada-mode? (M-x ada-mode-version)

What keystrokes are you using to invoke this?

If it's ada-mode 5.x, C-c M-r, then you can change
the variable ada-build-run-cmd in your .emacs:

(setq ada-build-run-cmd "${main}")

Then restart emacs and try again.

You can also use this variable to specify command line args,
but Makefiles are better in the long run.

You can also override ada-build-run-cmd with run_cmd in an ada-mode
project file; see the Emacs help for this variable (it should be in the
info manual, but it's not).

I always run Emacs on Windows with either Cygwin bash or MSYS2 bash as
the shell.

-- 
-- Stephe

Re: emacs compliation error (ada mode)

[pincerfae]

I'm running ada mode 5.18.
well, since the file is in a location I can locate, maybe I'd be better just running the program directly, though it defeats the purpose of building it in emacs.

I wasn't aware I needed to use keystrokes when there's a menu that can be used.





On Tuesday, June 16, 2015 at 1:39:21 PM UTC-7, Stephen Leake wrote:
> pincerfae@gmail.com writes:
> 
> > In trying out a 'hello world' tutorial, I keep getting an error message of this sort:
> >
> > Compilation started at Mon Jun 15 13:58:27
> >
> > ./hello_world
> > '.' is not recognized as an internal or external command,
> > operable program or batch file.
> 
> This looks like an error message from the cmd shell. "./" is sh shell
> syntax; it assumes "." is not in PATH.
> 
> What does M-: shell-file-name show? If it's something that ends in
> "cmdproxy.exe", then you are running the cmd shell.
> 
> > Compilation exited abnormally with code 1 at Mon Jun 15 13:58:27
> >
> >
> > the hello_world.exe program is there in the project folder. what am I missing?
> >
> > I'm using emacs 24.2 with ada mode on win7.
> 
> What version of ada-mode? (M-x ada-mode-version)
> 
> What keystrokes are you using to invoke this?
> 
> If it's ada-mode 5.x, C-c M-r, then you can change
> the variable ada-build-run-cmd in your .emacs:
> 
> (setq ada-build-run-cmd "${main}")
> 
> Then restart emacs and try again.
> 
> You can also use this variable to specify command line args,
> but Makefiles are better in the long run.
> 
> You can also override ada-build-run-cmd with run_cmd in an ada-mode
> project file; see the Emacs help for this variable (it should be in the
> info manual, but it's not).
> 
> I always run Emacs on Windows with either Cygwin bash or MSYS2 bash as
> the shell.
> 
> -- 
> -- Stephe

Re: emacs compliation error (ada mode)

[Simon Wright]

pincerfae@gmail.com writes:

> I wasn't aware I needed to use keystrokes when there's a menu that can
> be used.

The menu Ada > Build > Run invokes C-c M-r (doesn't the menu show the
equivalent keystrokes on the right side?)

Re: emacs compliation error (ada mode)

[Simon Wright]

Simon Wright <simon@pushface.org> writes:

> The menu Ada > Build > Run invokes C-c M-r

What I should have said is that both are bound to "the command
ada-build-run, which is an interactive Lisp closure in `ada-build.el'."

Re: emacs compliation error (ada mode)

[Stephen Leake]

pincerfae@gmail.com writes:

> I'm running ada mode 5.18.

I think you mean "5.1.8"

> well, since the file is in a location I can locate, maybe I'd be
> better just running the program directly, though it defeats the
> purpose of building it in emacs.
>
> I wasn't aware I needed to use keystrokes when there's a menu that can
> be used.

In emacs, "keystrokes" can also mean "menu"; picking a menu entry sends
a key event to the editor. So, what menu entry are you using?

In addition, there are usually keystroke equivalents to menus; once you
get used to them, the keys are faster.

C-c M-r is bound to ada-build-run, which is also bound to the menu entry
Ada | Build | Run.

>> If it's ada-mode 5.x, C-c M-r, then you can change
>> the variable ada-build-run-cmd in your .emacs:
>> 
>> (setq ada-build-run-cmd "${main}")
>> 
>> Then restart emacs and try again.

Did you try this?

-- 
-- Stephe