mingw-users Mailing List for MinGW - Minimalist GNU for Windows

On Fri, 2004-12-31 at 14:20, Jason Benjamin wrote:
> I'm trying to delve into more complex C programming. 
> I want to know how to use io.h (linked to by dir.h)
> for functions such as findfirst and so on with the
> purpose of creating programs that can search for files
> or perhaps perform like ls/dir.

As John said, this is certainly OS-specific.  Not only are the
higher-level functions such as renaming and moving OS-specific, even the
format of the directory tree varies from platform to platform.  Consider
how different the output of "ls -l" is vs. the DOS dir command... half
the information that ls returns isn't even available to DOS.

With MingW, you would probably want to use the FindFirstFile and
FindNextFile functions from the API.

If you like, email me privately and I'll send you a file copying program
I wrote as an exercise.  It doesn't do much (if anything) more than
XCOPY *.* /S does, but I just did it as an exercise to learn how to
traverse directory trees and manipulate files.

-------
Peter B. Steiger
Cheyenne, WY

Hi

> Jason Benjamin wrote:
>> I've heard that this sort of thing is very compiler/OS specific...
>
> Correct. Directory and file handling functions are specific to the 
> operating system. The C/C++ libraries provide the means to open and 
> read/write files, but that is about it. Renaming and moving files, 
> creating directories, etc. requires either OS-specific API calls or making 
> system calls to stuff like "rm" or "mv".
>
> I searched Sourceforge and could not find a library that handles this. You 
> may want to write a module that uses conditional compilation to provide a 
> common interface but OS-specific functions on the back-end. That or use 
> Perl if possible.

If you want cross-platform and you're prepared to go to C++ then I believe 
the boost (www.boost.org) file library will do what you want.

Regards
Paul

Paul Grenyer
email: pa...@pa...
web: http://www.paulgrenyer.co.uk
Elephant: http://www.paulgrenyer.dyndns.org/elephant/

Darrell "Dimebag" Abbott will be sorely missed.

Jason Benjamin wrote:
> I've heard that this sort of thing is very compiler/OS specific...

Correct. Directory and file handling functions are specific to the 
operating system. The C/C++ libraries provide the means to open and 
read/write files, but that is about it. Renaming and moving files, 
creating directories, etc. requires either OS-specific API calls or 
making system calls to stuff like "rm" or "mv".

I searched Sourceforge and could not find a library that handles this. 
You may want to write a module that uses conditional compilation to 
provide a common interface but OS-specific functions on the back-end. 
That or use Perl if possible.

-- 
John Gaughan
http://www.johngaughan.net/
jo...@jo...

I'm trying to delve into more complex C programming. 
I want to know how to use io.h (linked to by dir.h)
for functions such as findfirst and so on with the
purpose of creating programs that can search for files
or perhaps perform like ls/dir.  I have found a few
examples that work.  One is Windows API, but I'm not
trying to do this with Windows API.  The other uses
dirent.h.  I've heard that this sort of thing is very
compiler/OS specific, so once I have this figured out
for GCC, there shouldn't be anymore problems.  I am
slightly confused on how to declare and deal with the
struct involved.  

Finally, how easily would this directory parsing
routine port to another OS or processor.  

I'd appreciate any advice.  Thanks.  

Jason Benjamin

Hi,

How do I create a correct mangled library file from a windows system dll, 
such as dbghelp.dll, seen from a MinGW gcc/ld perspective?

Henrik.


=============================================================
Henrik Bach
Open Source Developer

e-mail: henrik_bach_llvm at hotmail.com
=============================================================
Got Freedom?
Software Freedom Day 2004 - 28th of August
http://www.softwarefreedomday.org/
=============================================================

_________________________________________________________________
Del din verden med MSN Spaces http://spaces.msn.com

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2916508
By: crazycs

thanks for your response.i'll do my best
and Happy new years to you！

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=286529

----- Original Message ----- 
From: "Erik de Castro Lopo" <mi...@me...>
To: <min...@li...>
Sent: Thursday, December 30, 2004 11:09 AM
Subject: Re: [Mingw-users] Compiling a librsync .dll (shared library 
compilation using autotools)


> On Thu, 30 Dec 2004 13:28:07 +1100
> Mike Tyson <mi...@tz...> wrote:
>
>> Hi!
>>
>> I'm developing a (currently) commercial application that uses librsync
>> to transfer files.  As librsync is LGPL, I need to link dynamically to
>> the library, so that users can replace the library as they see fit.
>> I can cross-compile (from Linux) a static library (.a) with mingw32, but
>> I haven't been able to compile a .dll from the source.  The ./configure
>> script ignores --enable-shared parameters, so that isn't any help.
>>
>> I can see a '-shared' option in the i586-mingw32msvc-ld manpage which
>> may be on the right track, but I'm unsure how to incorporate that into
>> the build system (A standard autotools setup).
>>
>> Has anyone tried something similar?
>
> I'm not sure about any specific cross compiling requirements, but I
> do know that when building a DLL on MinGW the linker needs to be passed
> the "-no-undefined" option.

No, it doesn't. If there are undefined references then it simply won't link. 
Maybe you are thinking of libtool or something?

Luke

>
> If your project uses Automake you need something like:
>
>    libyada-yada_la_LDFLAGS = -no-undefined
>
> HTH,
> Erik
> -- 
> +-----------------------------------------------------------+
>  Erik de Castro Lopo  no...@me... (Yes it's valid)
> +-----------------------------------------------------------+
> C offers you enough rope to hang yourself.
> C++ offers a fully equipped firing squad, a last cigarette and a 
> blindfold.
>
>
> -------------------------------------------------------
> The SF.Net email is sponsored by: Beat the post-holiday blues
> Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek.
> It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt
> _______________________________________________
> MinGW-users mailing list
> Min...@li...
>
> You may change your MinGW Account Options or unsubscribe at:
> https://lists.sourceforge.net/lists/listinfo/mingw-users
> 

On Thu, 30 Dec 2004 13:28:07 +1100
Mike Tyson <mi...@tz...> wrote:

> Hi!
> 
> I'm developing a (currently) commercial application that uses librsync
> to transfer files.  As librsync is LGPL, I need to link dynamically to
> the library, so that users can replace the library as they see fit.
> I can cross-compile (from Linux) a static library (.a) with mingw32, but
> I haven't been able to compile a .dll from the source.  The ./configure
> script ignores --enable-shared parameters, so that isn't any help.
> 
> I can see a '-shared' option in the i586-mingw32msvc-ld manpage which
> may be on the right track, but I'm unsure how to incorporate that into
> the build system (A standard autotools setup).
> 
> Has anyone tried something similar?  

I'm not sure about any specific cross compiling requirements, but I 
do know that when building a DLL on MinGW the linker needs to be passed
the "-no-undefined" option.

If your project uses Automake you need something like:

    libyada-yada_la_LDFLAGS = -no-undefined

HTH,
Erik
-- 
+-----------------------------------------------------------+
  Erik de Castro Lopo  no...@me... (Yes it's valid)
+-----------------------------------------------------------+
C offers you enough rope to hang yourself.
C++ offers a fully equipped firing squad, a last cigarette and a blindfold.

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2916268
By: adah

Submit your patches. Also notice that it must be your own writing or from a
public-domain source. You should not copy it from Platform SDK or other packages.
You also had better find the reason (preferably MSDN) for your patches.

Once you have proved yourself, the project admin will happily add you to the
developer group.

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=286529

Hi!

I'm developing a (currently) commercial application that uses librsync
to transfer files.  As librsync is LGPL, I need to link dynamically to
the library, so that users can replace the library as they see fit.
I can cross-compile (from Linux) a static library (.a) with mingw32, but
I haven't been able to compile a .dll from the source.  The ./configure
script ignores --enable-shared parameters, so that isn't any help.

I can see a '-shared' option in the i586-mingw32msvc-ld manpage which
may be on the right track, but I'm unsure how to incorporate that into
the build system (A standard autotools setup).

Has anyone tried something similar?  Where's a good place to start
looking? =3D)

Cheers!

Mike

--=20
Mike Tyson <mi...@tz...>
M: (+61) 0407 754 124
W: http://tzidesign.com

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2915449
By: tml1024

That depends on what else the program does, other than having a GTK user
interface.

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=7134

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2915108
By: maxscifi

how to port linux's program that use gtk to windows
dose it have differencne between programming on linux and windows

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=286529

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2914813
By: mingwlinder

Hi guys,

Although this concern a Win32 API, I post this thread here because it's most
about C99 (and aliasing compliance).

I just write the following code (which is an helper function for graphical
assertions) :
  static LPTSTR _format(LPCTSTR lpFormat, ...) {
    va_list lpValues;
    DWORD dwCharacters;
    LPTSTR lpMessage;
    va_start(lpValues, lpFormat);
    dwCharacters = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_STRING, lpFormat, 0, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &lpMessage, 0, &lpValues);
    va_end(lpValues);
    if (dwCharacters != 0) {
      return lpMessage;
    } else {
      MessageBox(NULL, TEXT("Impossible de formater le message d'erreur."),
TEXT(__FILE__) TEXT(":") TEXT(str(__LINE__)), MB_TASKMODAL | MB_ICONERROR |
MB_OK);
      ExitProcess(0);
    }
  }

When I compile it with UNICODE enabled, I got this warning :
assert.c: In function `_format':
assert.c:11: warning: dereferencing type-punned pointer will break strict-aliasing
rules

The line 11 is the one with the call to FormatMessage, where I use (LPTSTR)
&lpMessage. Almost everything in this code is a cut and paste from MSDN, and
the warning doesn't appeat at all in non UNICODE compilation.

I don't know at all how to fix that (some links find on Google speak of unions,
but I don't see how to use it and find this an ugly workaround), have you any
ideas ?

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=286529

Michael Gerdau wrote:
> Hi list !
>
> I'm currently upgrading our production system from mingw-gcc-3.3.3
> to mingw-gcc-3.4.2 (including newest binutils,w32api, runtime etc.)
>
> So far everything works fine.
>
> However I there one difference I came across and that involves
> setting the subsystem to console for DLLs.
>
> My Makefiles routinely do set the subsystem to console for everything
> that's not explicitly a GUI exe. When using
> mingw-gcc-3.3.3, runtime-3.3, w32api-2.5 and binutils-2.15.90-20040222
> this was no problem.
>
> However with
> mingw-gcc-3.4.2, runtime-3.5, w32api-3.1 and binutils-2.15.91-20040904
> I am no longer able to load my applications.
>
> Some investigations discovered that having '-Wl,--subsystem,console'
> in the linker cmd for the DLL is the culprit (i.e. removing that
> solves my problems).
>
> While I have no problem with removing the above switch for DLLs I'd
> like to ask those in the know whether this behavior is intentional
> and why it used to work with the above older version and not anymore
> etc. etc.
>
> Could someone please enlighten me here ?
>

It is a bug in ld.exe.  In fact, I am responsible for the bug so I'll submit a
patch to fix
after further testing.  What is happening is that the --subsystem option is
overriding the startup entry routine switch -e  set by gcc specs for -shared and
resetting the entry address to mainCRTstartup.

Danny
> Thank you, best,
> Michael

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2914483
By: sbonnemaison

How to generate an tlb file using MinGW ?
Is it necessary to use third party tools ?

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=286529

Hi list !

I'm currently upgrading our production system from mingw-gcc-3.3.3
to mingw-gcc-3.4.2 (including newest binutils,w32api, runtime etc.)

So far everything works fine.

However I there one difference I came across and that involves
setting the subsystem to console for DLLs.

My Makefiles routinely do set the subsystem to console for everything
that's not explicitly a GUI exe. When using
mingw-gcc-3.3.3, runtime-3.3, w32api-2.5 and binutils-2.15.90-20040222
this was no problem.

However with
mingw-gcc-3.4.2, runtime-3.5, w32api-3.1 and binutils-2.15.91-20040904
I am no longer able to load my applications.

Some investigations discovered that having '-Wl,--subsystem,console'
in the linker cmd for the DLL is the culprit (i.e. removing that
solves my problems).

While I have no problem with removing the above switch for DLLs I'd
like to ask those in the know whether this behavior is intentional
and why it used to work with the above older version and not anymore
etc. etc.

Could someone please enlighten me here ?

Thank you, best,
Michael
-- 
 Vote against SPAM - see http://www.politik-digital.de/spam/
 Michael Gerdau       email: mg...@te...
 GPG-keys available on request or at public keyserver

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2913850
By: ankitaneja

i am able to compile and execute and create .exe file of simple hello program
on mingw
but i want to execute and create exe of clamav on 
mingw i am having linux code which is running sucessfullly on linux i tested it
clamscan /
and it was running
but i am not able to to run clamav on mingw

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=7134

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2913719
By: crazycs

i notice that the ming-runtime project has something need to be do to make it
more powerful,so may i to join it ?

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=286529

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2913709
By: ankitaneja

i can make .exe file for a single program
hello.c
but how can i compile and execute
folders and files which are dependent on each other

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=7134

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2913691
By: maxscifi

can i port linux's program that use gtk to windows with out change code

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=7134

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2913609
By: popeyelin

oooooh,I can visit it.
It seems something different with www.mingw.org.
Thanks a lot.

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=7134

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2913532
By: earnie

Can you visit mingw.sf.net?

Earnie

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=7134

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2913188
By: tuft

Does someone tried to make d language (http://www.digitalmars.com/d/) front-end
for mingw? I found this http://home.earthlink.net/~dvdfrdmn/d/ but it doesn't
under windows.

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=286529

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2913156
By: popeyelin

I seldom can visit the web-site,so I cannot get more documentations from the
web-site.
Are there any mirrors about it???I am visit it from china.

______________________________________________________________________
You are receiving this email because you elected to monitor this forum.
To stop monitoring this forum, login to SourceForge.net and visit: 
https://sourceforge.net/forum/unmonitor.php?forum_id=7134

Is there a way to generate 32bit ULONG state tables with BISON as I have a
very large grammar and it is overflowing the "USHORT"s?  What version?
Tom...@mt...