msys 1.0.13 gawk problem

I'm using:
  msysCORE-1.0.13-1-msys-1.0.13-bin.tar.bz2 
  bash-3.1.17-2-msys-1.0.11-bin.tar.bz2 
  gawk-3.1.7-1-msys-1.0.11-bin.tar.bz2 

Extracted in some tmp directory, started msys.bat.

Problem is in gawk with printf, the positional parameters are printed
wrong:

Ok, as expected:
    $ echo -1 2 | gawk '{print $1, $2}'
    -1 2
    $  echo -1 2 | gawk '{printf "%d %d\n", $1, $2}'
    -1 2

Bug: wrong values printed (should be -1 2 in both cases):
    $  echo -1 2 | gawk '{printf "%g %g\n", $1, $2}'
    1 -2

    $  echo -1 2 | gawk '{printf "%f %f\n", $1, $2}'
    1.000000 -2.000000

    $ type gawk
    gawk is hashed (/bin/gawk)

    $ type echo
    echo is a shell builtin

    $ uname -a

Re: msys 1.0.13 gawk problem

Ralf Fassel wrote:
> Bug: wrong values printed (should be -1 2 in both cases):
>     $  echo -1 2 | gawk '{printf "%g %g\n", $1, $2}'
>     1 -2
> 
>     $  echo -1 2 | gawk '{printf "%f %f\n", $1, $2}'
>     1.000000 -2.000000

>     $ gawk --version
>     Use -h to see help about each section
>     GNU Awk 3.1.7
>     Copyright (C) 1989, 1991-2009 Free Software Foundation.
> 
> - Same awk version on linux doesn't have this problem.
> - Msys 1.0.11 doesn't have this problem.
> 
> Can anyone confirm this?

I can confirm the behavior on msys, but not that it works any
differently anywhere else:

msys:
$ uname -s -r
MINGW32_NT-6.0 1.0.13(0.47/3/2)
$ gawk --version
GNU Awk 3.1.7
$ echo "-1 2" | gawk '{printf "%f %f\n", $1, $2}'
-1.000000 2.000000

linux:

Re: msys 1.0.13 gawk problem

* Charles Wilson
| msys:
| $ uname -s -r
| MINGW32_NT-6.0 1.0.13(0.47/3/2)
| $ gawk --version
| GNU Awk 3.1.7
| $ echo "-1 2" | gawk '{printf "%f %f\n", $1, $2}'
| -1.000000 2.000000

This is what I'd expect.

| I really wouldn't expect gawk's %f printf to act any differently
| that C's:
| 
| #include <stdio.h>
| int main(int argc, char *argv[])
| {
| 	double d1 = -1;
| 	double d2 = 2;
| 	printf ("%f %f\n", d1, d2);
| }
| 
| 
| $ gcc -o bob bob.c
| $ ./bob
| -1.000000 2.000000

In fact, it does not:

    $ gawk '{printf "%g %g\n", -1, 2}'

Re: msys 1.0.13 gawk problem

Ralf Fassel wrote:
> In fact, it does not:
> 
>     $ gawk '{printf "%g %g\n", -1, 2}'
> 
>     1 -2
> 
>     -1 2
> 
>     1 -2
> 
>     -1 2
> 
> Note the alternating sign...

Hmmm...this sounds disturbingly familiar.  See this thread:
http://thread.gmane.org/gmane.comp.gnu.mingw.devel/3592

> Will try to recompile the MSYS runtime...

Try compiling (the MSYS dll) with -fno-unit-at-a-time.  I think this
might be a compiler bug in the gcc used to build the msys dll.

--
Chuck

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Re: msys 1.0.13 gawk problem

* Charles Wilson
| Try compiling (the MSYS dll) with -fno-unit-at-a-time. I think this
| might be a compiler bug in the gcc used to build the msys dll.

Since setting CFLAGS in the environment did not make it into
libc/stdio/Makefile (where the printf's are), I added
-fno-unit-at-a-time manually there, and ran a recompile/reinstall:
problem gone.

Recompiled using the original Makefile:
problem reappeared.

So it seems like it really is a problem in the compiler.
How do I use -fno-unit-at-a-time everywhere?

R'

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Re: msys 1.0.13 gawk problem

Ralf Fassel wrote:
> I added
> -fno-unit-at-a-time manually there, and ran a recompile/reinstall:
> problem gone.
> 
> Recompiled using the original Makefile:
> problem reappeared.
> 
> So it seems like it really is a problem in the compiler.
> How do I use -fno-unit-at-a-time everywhere?

I can confirm this. Compiling the MSYS dll with unit-at-a-time enables
(the default for this version of gcc at levels -O2 and -O3), and you
will see this aberrant gawk behavior.  Compile with -fno-unit-at-a-time,
and gawk behaves as expected.

Note that this is with a gawk executable that was compiled last fall,
using msys-gcc-2.95.3 and (old) msys-binutils.

In answer to your question, Ralf, you should edit the msysrlsbld.ini
file and change the two lines:

-export CFLAGS="-O3 -g"
+export CFLAGS="-O3 -g -fno-unit-at-a-time"
 export LDFLAGS='-L/usr/lib/w32api'
-export CXXFLAGS="-O3 -g"
+export CXXFLAGS="-O3 -g -fno-unit-at-a-time"
 export CPPFLAGS='-I/usr/include/w32api'

Then, use ./msysrlsbld as usual.  (I'm assuming that you are trying to

Re: msys 1.0.13 gawk problem

* Charles Wilson
| Note that this is with a gawk executable that was compiled last
| fall, using msys-gcc-2.95.3 and (old) msys-binutils.

I also see this behaviour with the simple C test program you posted
earlier which simply issues 4 printf's with fixed values in a row.
(gawk is just a victim here 

| In answer to your question, Ralf, you should edit the msysrlsbld.ini
| file and change the two lines:

Ah, msysrlsbld.ini.  I forgot.

R'

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MSYS 1.0.12 and 1.0.13 core bin packages contain almost no executables!?

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Re: MSYS 1.0.12 and 1.0.13 core bin packages contain almost no executables!?

Trautenberg, Wolfgang wrote:
> After some pain with the .lzma archives (I would not mind staying with
> the .tgz or .tar.gz archives)
> I managed to unpack the content of 
> msysCORE-1.0.12-1-msys-1.0.12-bin.tar.lzma and
> msysCORE-1.0.12-1-msys-1.0.13-bin.tar.lzma respectively.

We should relatively soon have an installer than can do this for you.
But for now, we provide the 'bsdtar' tool for unpacking them:
http://downloads.sourceforge.net/mingw/bsdtar-2.7.900a_r1628-20091110-mingw32-alpha-bin.zip

> After unpacking these files and trying to start MSYS via msys.bat, I
> realized msys would not
> start as there is no rxvt.exe and no sh.exe in the MSYS bin directory.
>  
> Is it intentional, that these (and many other) executables are not  part
> of the MSYS 1.0.12 and
> 1.0.13 archives? Or are we not supposed to use these archives?

It is deliberate. We have split the mingw and msys "giant" installation
packages into dozens of smaller components, so that each may be
individually updated more rapidly than once every three years.

Unfortunately, it's difficult to know which of these new smaller
packages you need to recreate the old "giant" installation.  The current
situation is obviously subpar; we'll try to improve it shortly.

--
Chuck

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