Re: gcc 3.4 - gnatmake has wrong gcc name

[Joel Sherrill <joel dot sherrill at OARcorp dot com>]

Jim Wilson wrote:

> Joel Sherrill wrote:

> The routines in question here are Find_Program_Name and Program_Name in 
> ada/osint.adb.
>
> Find_Program_Name gets the executable name, removes everything up to the 
> last slash, which gives us a program name without any leading path 
> components.
>
> It then removes everything after the last dot.  This is probably 
> assuming that if there is a dot, then there must be some extension like 
> .exe to be stripped off.  This can be see in the above.  Note the error 
> message says sparc-rtems4, not sparc-rtems4.7-gnatmake because the 
> supposed file name extension has been removed.
>
> Program_name then removes everything after the last dash, which should 
> be gnatmake, but in your case is rtems4.  This leaves just sparc-.  Then 
> it appends gcc giving sparc-gcc.
>
> The Program_Name ("gcc") call is in make.adb.
>
> I haven't tried to verify any of this with a build or debugger.

I didn't do this because I remembered having submitted a patch for
similar behvior in the gnattools years ago and wanted to find it to
before doing the above.

I think your description of the behavior is correct.  I can fix it
but need to know what the real behavior should be.  Would the
Ada equivalent of name() in this shell script be the desired behavior?

--------------------------------------------------------------------
#! /bin/sh

name()
{
 # Equivalent of Find_Program_Name
 progname=`echo $1 | sed -e 's/\.exe$//'`
 # Equivalent of Program_Name
 target=`echo $progname | sed -e 's/-[a-zA-Z0-9]*$//'`
 echo ${target}-$2
}

name sparc-rtems-gnatmake gcc
name sparc-rtems4.7-gnatmake gcc
name sparc-rtems-gnatmake.exe gcc
name sparc-rtems4.7-gnatmake.exe gcc
---------------------------------------------------------------------

My impression is that Find_Program_Name is broken for
versioned target names with '.' in them and that it really
needs to be removing a known set of extensions.  Is there anything
other than .exe$ that needs to be taken off?

--joel