Mail Archives: djgpp-workers/1999/05/25/05:42:38
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Perhaps someone who knows more than I do about Autoconf and libtool could
see if this has any implication on DJGPP, and if so, talk to people who
are involved in developing libtool?
Thanks.
---------- Forwarded message ----------
Date: Sun, 23 May 1999 21:18:37 +0100 (BST)
From: "Gary V. Vaughan" <gary AT oranda DOT demon DOT co DOT uk>
To: Thomas Tanner <tanner AT gmx DOT de>
Subject: RE: Programs differing only by ".exe" suffix: subtle Libtool 1.3
Cc: bug-libtool AT gnu DOT org, Automake List <automake AT gnu DOT org>,
"Matthew D. Langston" <langston AT SLAC DOT Stanford DOT EDU>
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Xref: titan.progiciels-bpi.ca prog.libtool:3047
On 23-May-99 Thomas Tanner wrote:
>
> On 22-May-99 Matthew D. Langston wrote:
>> In a nutshell, an Automake/Libtool package becomes "broken" when two
>> programs (i.e. in some Automake "_PROGRAMS" primary) differ in their
>> names only by the suffix ".exe". For example, the following snippet
>> from `Makefile.am' works as expected:
>
> Thanks. Fixed.
>
>> I recently came across this bug while "Autoconfing" a package called
>> ROOT (an analysis package for High Energy Physics). My "Autoconfed"
>> version of ROOT creates two programs named "root" and "root.exe". Since
>> I am packaging a 3rd party package, I have no control over the names of
>> these two programs. I have had to fall back to Libtool 1.2 for now.
>
> Using prog and prog.exe at the same time isn't really portable.
> On CygWin libtool has to strip off the .exe suffix from the
> wrapper script, i.e., prog == prog.exe.
Infact it is worse than that. It is non-portable to rely on when a .exe suffix
might be found at all. Because of the stupid file extension associations in
win32, anything will an exe suffix is assumed (at the OS level) to be a binary
executable, so depending on whether or not a bin_PROGRAMS target is compiled
statically or dynamically, it may end up being a binary with an exe suffix, or
a wrapper script which cannot have an exe suffix (or it will not run under
win32).
Automake and libtool go to some lengths to manage suffixes in a way that will
work transparently (except for needing AC_EXEEXT), and trying to manage using
exe suffixes in a different way within a package can only lead to a conflict of
interests which will make it all the more difficult for someone to port the
package to win32.
Cheers,
Gary.
--
___ _ ___ __ _ email:gary AT oranda DOT demon DOT co DOT uk
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Date: Sun, 23 May 1999 21:18:37 +0100 (BST)
From: "Gary V. Vaughan" <gary AT oranda DOT demon DOT co DOT uk>
To: Thomas Tanner <tanner AT gmx DOT de>
Subject: RE: Programs differing only by ".exe" suffix: subtle Libtool 1.3
Cc: bug-libtool AT gnu DOT org, Automake List <automake AT gnu DOT org>,
"Matthew D. Langston" <langston AT SLAC DOT Stanford DOT EDU>
Resent-Message-ID: <"AUX52.0.-f3.FBQIt"@mescaline.gnu.org>
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Xref: titan.progiciels-bpi.ca prog.libtool:3047
On 23-May-99 Thomas Tanner wrote:
>
> On 22-May-99 Matthew D. Langston wrote:
>> In a nutshell, an Automake/Libtool package becomes "broken" when two
>> programs (i.e. in some Automake "_PROGRAMS" primary) differ in their
>> names only by the suffix ".exe". For example, the following snippet
>> from `Makefile.am' works as expected:
>
> Thanks. Fixed.
>
>> I recently came across this bug while "Autoconfing" a package called
>> ROOT (an analysis package for High Energy Physics). My "Autoconfed"
>> version of ROOT creates two programs named "root" and "root.exe". Since
>> I am packaging a 3rd party package, I have no control over the names of
>> these two programs. I have had to fall back to Libtool 1.2 for now.
>
> Using prog and prog.exe at the same time isn't really portable.
> On CygWin libtool has to strip off the .exe suffix from the
> wrapper script, i.e., prog == prog.exe.
Infact it is worse than that. It is non-portable to rely on when a .exe suffix
might be found at all. Because of the stupid file extension associations in
win32, anything will an exe suffix is assumed (at the OS level) to be a binary
executable, so depending on whether or not a bin_PROGRAMS target is compiled
statically or dynamically, it may end up being a binary with an exe suffix, or
a wrapper script which cannot have an exe suffix (or it will not run under
win32).
Automake and libtool go to some lengths to manage suffixes in a way that will
work transparently (except for needing AC_EXEEXT), and trying to manage using
exe suffixes in a different way within a package can only lead to a conflict of
interests which will make it all the more difficult for someone to port the
package to win32.
Cheers,
Gary.
--
___ _ ___ __ _ email:gary AT oranda DOT demon DOT co DOT uk
/ __|__ _ _ ___ _| | / / | / /_ _ _ _ __ _| |_ __ _ ___ gary AT gnu DOT org
| (_ / _` | '_|// / |/ /| |/ / _` | || / _` | ' \/ _` | _ \
\___\__,_|_|\_, /|___(_)___/\__,_|\_,_\__, |_||_\__,_|//_/
home page: /___/ /___/ pgp-2 public key:
http://www.oranda.demon.co.uk http://www.oranda.demon.co.uk/pgp
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=0D
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Fran=E7ois Pinard http://www.iro.umontreal.ca/~pinard=0D
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