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

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3178574
By: mol1111

Rename ar.exe to arx.exe and then create shell script with name ar which will
separate the arguments into series of calling arx. E.g. like this:
http://molhanec.net/ar (tested under some 4.0.1 snapshot). However I cannot
guarantee that such libgcj will work :-)


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Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3177437
By: earnie

On 7:33:36 am 2005-05-31 Erik de Castro Lopo <mi...@me...> wrote:
> SourceForge.net wrote:
>
> >
> >  Read and respond to this message at:
> >  https://sourceforge.net/forum/message.php?msg_id=3176949
> >  By: shadowmas
> >
> >  i'm trying to port a linux application to windows which require
> >  pread and pwrite functions. as far as i can see there not defined
> in the MinGW include files.
>
> They aren't in the MinGW include files because win32 doesn't have
> these functions.
>
> >  i tried googling but didnt find anything that was of any help.
>
> They are part of the Unix98 standard.
>
> >  any tips as to where i can find them or an alternative.
>
> Pread can be implemented as (untested):
>
> ssize_t
> pread(int fd, void *buf, size_t count, off_t offset)
> {
>     ssize_t retval ;
>     off_t saved_pos = lseek (fd, 0, SEEK_CUR);
>
>     lseek (fd, offset, SEEK_SET);
>     retval = read (fd, buf, count);
>     lseek (fd, saved_pos, SEEK_SET);
>
>     return retval;
> }
>
> replacing the lseek/read etc with Win32 ReadFile / SetFilePointer etc.
>
> You should probably also add a bunch of error checking and handling.
>
> Erik

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Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3177103
By: dawesc

Not as yet i'm afraid, i'm still trying, i've also submitted a bug report on
bugzilla (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21754) I'll post back
if i manage to make a build

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SourceForge.net wrote:

> 
> Read and respond to this message at: 
> https://sourceforge.net/forum/message.php?msg_id=3176949
> By: shadowmas
> 
> i'm trying to port a linux application to windows which require pread and pwrite
> functions. as far as i can see there not defined in the MinGW include files.

They aren't in the MinGW include files because win32 doesn't have
these functions.

> i tried googling but didnt find anything that was of any help.

They are part of the Unix98 standard.

> any tips as to where i can find them or an alternative.

Pread can be implemented as (untested):

ssize_t
pread(int fd, void *buf, size_t count, off_t offset)
{
    ssize_t retval ;
    off_t saved_pos = lseek (fd, 0, SEEK_CUR);

    lseek (fd, offset, SEEK_SET);
    retval = read (fd, buf, count);
    lseek (fd, saved_pos, SEEK_SET);

    return retval;    
}

replacing the lseek/read etc with Win32 ReadFile / SetFilePointer etc.

You should probably also add a bunch of error checking and handling.

Erik
-- 
+-----------------------------------------------------------+
  Erik de Castro Lopo  no...@me... (Yes it's valid)
+-----------------------------------------------------------+
"It has been discovered that C++ provides a remarkable facility
for concealing the trival details of a program -- such as where 
its bugs are." -- David Keppel

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3176949
By: shadowmas

i'm trying to port a linux application to windows which require pread and pwrite
functions. as far as i can see there not defined in the MinGW include files.
i tried googling but didnt find anything that was of any help.

any tips as to where i can find them or an alternative.


thanks

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The difference is pretty small, and IMHO such a test program won't give =
any useful indication of how real programs will perform. MinGW also uses =
the MSVC malloc() in msvcrt.dll.

Luke

  ----- Original Message -----=20
  From: Marco Vignati=20
  To: min...@li...=20
  Sent: Monday, May 30, 2005 11:17 PM
  Subject: [Mingw-users] malloc slow?


  Hi all,

  I compiled a malloc test code with MinGW-3.10.0-1 / gcc-3.2.3 and with
  MS Visual C++ 6.

  With MinGW/gcc time gives:

  real    0m3.718s
  user   0m0.015s
  sys    0m0.000s

  and With MS Visual C++:

  real    0m2.094s
  user   0m0.015s
  sys    0m0.000s

  The source code of the test program is:

  #include <stdlib.h>
  int main()
  {
    int i,*a;
    for(i=3D0;i<20000000;i++){
      a=3Dmalloc(sizeof(int));
      free(a);
    }
    return 0;
  }

  I Compiled it with:

  gcc -funroll-loops -O3 -o t_malloc t_malloc.c

  and in Visual C++ with the "Release" configuration.

  Am I omissing any optimization option with gcc??

  Thanks in advance

  Marco

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3176631
By: earnie

Your command line order was incorrect.  Dependency resolution objects must follow
the objects that depend on them.  I.E.: gcc -o foo foo.c -lmylib

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Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3176554
By: cardboard42

I realized that I could change a #define and safely comment out the line with
fnmatch. I'm not sure if it will restrict the functionality of the program at
all, but it doesn't look like it should hurt much. However, I'd still like to
make it work right.

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GCC 3.4.4 release candidate for mingw is available.

You can download it from:
https://sourceforge.net/project/showfiles.php?group_id=2435

The binaries are archived by language.

To get core C compiler, download:

  gcc-core-3.4.4-20050522-1.tar.gz

To add on other languages, download one or more
of these (in addition to core):

  gcc-ada-3.4.4-20050522-1.tar.gz  
  gcc-g++-3.4.4-20050522-1.tar.gz
  gcc-g77-3.4.4-20050522-1.tar.gz
  gcc-java-3.4.4-20050522-1.tar.gz
  gcc-objc-3.4.4-20050522-1.tar.gz


Extract the files, maintaining the directory structure, into your root
directory for mingw.

Be aware that some archive extracters do not preserve read-only
attributes of files. If you are installing the Ada component, please
check that the files in the /lib/gcc/mingw32/3.4.2/adainclude and adalib
directories are flagged as read-only. This attribute is necessary to
prevent them from being deleted when using gnatclean to clean a project.

* This package does _not_ contain binutils, the mingw-runtime
  or the w32api. You will need to get these if you do not already
  have mingw installed.
* libstdc++ requires version 3.0 or higher of mingw-runtime and
  w32api version 2.2 or higher.  The GNU extension class
  __gnu_cxx::stdio_sync_filebuf requires version 3.5 of the mingw-runtime
  (with large-file support) to resolve references to fseeko64.
* libgcj requires libiconv.  You can download sources or prebuilt
  binaries from the maintainers. See: http://www.gnu.org/software/libiconv.
  My testing has been done with libiconv-1.9.2 built (using mingw) as a
  static lib.
  
The new features of GCC 3.4 are documented in the GCC release notes at:
http://gcc.gnu.org/gcc-3.4/

For mingw-specific modifications, refer to the ChangeLog entries
in diff file (gcc-3.4.4-20050522-1-src.diff.gz).

Of note is the addition of collect2.exe for mingw. The collect2 that
is in this distro is based on patches that have been published on gcc
lists, but have not been committed to official FSF sources. The version
of collect2 with mingw support that will eventually become part of
mainline GCC will almostly certainly differ from the one provided here.
If you don't want to use collect2, just rename it to something else (if
the gcc driver doesn't see collect2 in its search path it will just
execute ld directly).

Pre-compiled headers appear to work on at least two systems (NT4 and XP).
I have not tested other windows versions.  Please consider this feature
a "technology preview".

This release contains:

1) Source distribution, with mingw-local patches incorporated: 
  gcc-core-3.4.4-20050522-1-src.tar.gz 
  gcc-ada-3.4.4-20050522-1-src.tar.gz
  gcc-g++-3.4.4-20050522-1-src.tar.gz
  gcc-g77-3.4.4-20050522-1-src.tar.gz
  gcc-java-3.4.4-20050522-1-src.tar.gz
  gcc-objc-3.4.4-20050522-1-src.tar.gz
  gcc-testsuite-3.4.4-20050522-1-src.tar.gz

2) The diff from official FSF sources 
  gcc-3.4.4-20050522-1-src.diff.gz.

3) Binaries
  gcc-core-3.4.4-20050522-1.tar.gz
  gcc-ada-3.4.4-20050522-1.tar.gz  
  gcc-g++-3.4.4-20050522-1.tar.gz
  gcc-g77-3.4.4-20050522-1.tar.gz
  gcc-java-3.4.4-20050522-1.tar.gz
  gcc-objc-3.4.4-20050522-1.tar.gz

4) gcc-3.4.4-build.sh, which is the script I used to configure
and build.

5) This file.


Danny 
2005-05-28

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3176502
By: cardboard42

I'm trying to compile GPP 2.24 (general purpose preprocessor). I haven't got
enough c knowledge to make the thing compile in VS2003, so I thought I'd try
in mingw. Long story short, I get the following error:

C:/DOCUME~1/KENALL~1/LOCALS~1/Temp/ccGecaaa.o(.text+0x5e77):gpp.c: undefined
ref
erence to `fnmatch'

Now, I looked this up on the user mailing list and saw that I had to use libiberty.
Keeping in mind that I grabbed fnmatch.h from the msys source and put it in
the includes directory (just in case). Why do I still get that error with this
command line?

gcc -liberty gpp.c

I'm getting frustrated here.

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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Vincent Honnet schrieb:
> Hello,
> 
> I'm trying to link a small application which use Qt. I already compiled
> Qt with MinWG32 (version 3.8) and the cpp files of the application. I
> did like that for the compilation:
> 
> g++ -IC:\Qt\3.3.4\include -c main.cpp
> g++ -IC:\Qt\3.3.4\include -c word.cpp
> 
> and then for the link:
> g++ -o world main.o word.o -LC:\Qt\3.3.4\lib -lqt
> 
> I just get then:
> 
> word.o(.text+0x130):word.cpp: undefined reference to `vtable for Word'
> word.o(.text+0x13c):word.cpp: undefined reference to `vtable for Word'
> word.o(.text+0x172):word.cpp: undefined reference to `vtable for Word'
> word.o(.text+0x17e):word.cpp: undefined reference to `vtable for Word'
> collect2: ld returned 1 exit status
> 
> Could you help me ? Thanks a lot in advance.
This is a Qt-related problem and as nothing to do with mingw.
Learn how to program with Qt (especially how 'moc' works) and use qmake
for creating makefiles/projects.
The problem was asked many times on tt-mailing lists - search for it
here: http://lists.trolltech.com/qt-interest/

Christian
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mncQwHq841NhPVo1dl37HF4=
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Hello,

I'm trying to link a small application which use Qt. I already compiled 
Qt with MinWG32 (version 3.8) and the cpp files of the application. I 
did like that for the compilation:

g++ -IC:\Qt\3.3.4\include -c main.cpp
g++ -IC:\Qt\3.3.4\include -c word.cpp

and then for the link:
g++ -o world main.o word.o -LC:\Qt\3.3.4\lib -lqt

I just get then:

word.o(.text+0x130):word.cpp: undefined reference to `vtable for Word'
word.o(.text+0x13c):word.cpp: undefined reference to `vtable for Word'
word.o(.text+0x172):word.cpp: undefined reference to `vtable for Word'
word.o(.text+0x17e):word.cpp: undefined reference to `vtable for Word'
collect2: ld returned 1 exit status

Could you help me ? Thanks a lot in advance.

Vincent

Hi all,

I compiled a malloc test code with MinGW-3.10.0-1 / gcc-3.2.3 and with
MS Visual C++ 6.

With MinGW/gcc time gives:

real 0m3.718s
user 0m0.015s
sys 0m0.000s

and With MS Visual C++:

real 0m2.094s
user 0m0.015s
sys 0m0.000s

The source code of the test program is:

#include <stdlib.h>
int main()
{
int i,*a;
for(i=3D0;i<20000000;i++){
a=3Dmalloc(sizeof(int));
free(a);
}
return 0;
}

I Compiled it with:

gcc -funroll-loops -O3 -o t_malloc t_malloc.c

and in Visual C++ with the "Release" configuration.

Am I omissing any optimization option with gcc??

Thanks in advance

Marco

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hello

win32api-3.x is missing some defines for SetWindowPos.
See here:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/windowing/windows/windowreference/windowfunctions/setwindowpos.asp
SWP_DRAWFRAME, SWP_FRAMECHANGED is missing
SWP_NOREPOSITION is 'Same as the SWP_NOOWNERZORDER flag' - so maybe a
'define SWP_NOREPOSITION SWP_NOOWNERZORDER' is better.

The problem is that I've not found all defines via google (only some
winuser.h files which we shouldn't use). The only one we maybe could use
is this:
http://cvs.sourceforge.net/viewcvs.py/nsis/NSIS/Contrib/System/System.nsh

Christian
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Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3174783
By: keig

I'm playing with some of the same things as you, trying to build GCJ under mingw.
Using basically the same build script as you, I have not had success, but I
do not think it is the script.

The first problem that I encountered was a crash that I encountered while compiling
some of the Java classes. This was corrected by making the GCC patch described
in PR 21022.

My problem now occurs when the Makefile tries to use ar to create an archive
of the java files. As far as I can figure, the command line argument presented
to the ar program has too many characters.

Do you know how to get around this?

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Hi everyone,

I am trying to compile the standard HelloWorld.java program into a
native executable using GCJ. At the MSYS prompt, I type in:

  $ gcj --main=3DHello -oHello Hello.java

and then:

  $ Hello.exe=20
  Hello World!

Success. But at the MS-DOS prompt, if I type in:

  c:\home>Hello.exe

then I am greeted with the following error message:

  "This application has failed to start because libiconv-2.dll was not
found. Re-installing the application may fix the problem"

I was under the impression that GCJ could create a exectuable that
runs independently, without depending on files like libiconv-2.dll. Is
this normal or is this a problem that I can fix?

Thanks,
Matt

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3174027
By: infidel

What are the exact directories and commands you are using now? You appear to
be using Dev-C++ make.exe, but you won't find support here unless you are using
MSYS or Cygwin make


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Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3173749
By: useradd

I donot use the source directory of the subdirectory of source code as the build
directory, I use the brother directory of the build directory. The above error
occurs.

The sources are downloaded from gnu ftp site

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Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3173370
By: kwizatz

the OpenGL Headers and libraries are in w32api-3.2.tar.gz

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MinGW Community,

Please review the news item http://sourceforge.net/forum/forum.php?forum_id=469657 for a description of this release.

Earnie

--
       MinGW - http://www.mingw.org/
        Wiki - http://www.mingw.org/MinGWiki/
  Bug Report - http://sourceforge.net/tracker/?group_id=2435&atid=102435
Submit Patch - http://sourceforge.net/tracker/?group_id=2435&atid=302435
  SF Project - http://sourceforge.net/projects/mingw
 Job Listing - http://sf.net/people/viewjob.php?group_id=2435&job_id=21643
 Job Listing - http://sf.net/people/viewjob.php?group_id=46778&job_id=22223

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3172901
By: jdarling

Ok it used to be simple to find copies of the OpenGL header files.  Now everything
references that it should ship with the compiler.  I've downloaded and installed
MinGW but I can't find GL.h or any of the other standard OpenGL headers?  Can
someone please tell me where I'm screwing up here, as I know its me and not
the rest of the world :).

Thanks,
Jeremy

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MinGW Community,

Please review the news item http://sourceforge.net/forum/forum.php?forum_id=469573 for the details of this release.

Earnie

--
       MinGW - http://www.mingw.org/
        Wiki - http://www.mingw.org/MinGWiki/
  Bug Report - http://sourceforge.net/tracker/?group_id=2435&atid=102435
Submit Patch - http://sourceforge.net/tracker/?group_id=2435&atid=302435
  SF Project - http://sourceforge.net/projects/mingw
 Job Listing - http://sf.net/people/viewjob.php?group_id=2435&job_id=21643
 Job Listing - http://sf.net/people/viewjob.php?group_id=46778&job_id=22223

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3172795
By: earnie

It is suggested by the GCC team to not use the source directory as the build
directory.  It is also suggested that the build directory not be a subdirectory
within the source directory.

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Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3172781
By: useradd

If I run my configure in the brother directory of gcc-4.0.0, there is errors:
c:\opt\dev-cpp\bin\make.exe: *** No rule to make target `/d/gcc-4.0.0/gcc/version.c',
needed by `config.status'.  Stop.
c:\opt\dev-cpp\bin\make.exe: *** No rule to make target `/d/gcc-4.0.0/gcc/version.c',
needed by `config.status'.  Stop.

but when I run it under the directory of gcc, it is OK.


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Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=3172749
By: infidel


First read:

http://www.mingw.org/MinGWiki/index.php/SubmitPatches

Basically you would need to write the header using publicly available information
and then submit it as a patch to w32api


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