Re: FYI:gcc-4.9.3

[Tatsuro MATSUOKA]

----- Original Message -----

> From: Philip Nienhuis 
> To: Tatsuro MATSUOKA; Philip Nienhuis ; "octave-maintainers
> Cc: 
> Date: 2015/7/1, Wed 15:02
> Subject: Re: FYI:gcc-4.9.3
> 
> Hi Tatsu,
> 
> Tatsuro MATSUOKA wrote:
>>  ----- Original Message -----
>> 
>>>  From: Philip Nienhuis
>>>  To: octave-maintainers
>>>  Cc:
>>>  Date: 2015/7/1, Wed 04:58
>>>  Subject: RE: FYI:gcc-4.9.3
>>> 
>>>  Ever since it turned out that returning to 4.9.2 again broke 64-bit
>>>  mkoctfile on Windows I make my MXE builds using gcc-5.1.0 - since then 
> I
>>>  never had problem with building packages on the Windows side (keeping
>>>  fingers crossed, of course).
> <snip>
>>  Is the above related to --enable-64?
>>  Is the above *not* related  to --enable-windows-64?
> 
> Both.
> As --enable-windows-64 is implicitly set with --enable-64 one can say that it 
> is 
> the former that makes the difference.
> 
>>  I have build mxe-octave middle of June with --enable-windows-64 bundled gcc 
> is 4.9.2.
> :
> <snip>
> :
>>  I could build octave-forge packages using build_packages.m
> 
> Building is not the issue.  What happemed is that "natively" built 
> binary modules (.oct files) were miscompiled.  See bug #44662 and bug #44998
> 
> Try the following with gcc-4.9.2 --enable-windows-64 Octave builds:
> 
> - cell2scv (io package) with any .csv file => crashes and takes Octave with 
> it. csv2cell, csvconcat and csvexplode => also make Octave crash.
> 
> - windows package, if you have MS-Office installed:
> app = actxserver ("Excel.Application")  ## Starts Excel in backgrond
> app.Quit ()                             ## closes Excel's workbook
> delete (app)                            ## shuts Excel down
> 
> At app.Quit(), Octave crashes.
> With LibreOffice I got similar crashes here - LO can be started similarly 
> using 
> COM if one has the LibreOffice ActiveX component installed, along the way of
> app = actxserver ("com.sun.star.ServiceManager")
> ... followed by a series of other VB script (StarBasic) commands that I 
> haven't got handy ATM.
> 
> AFAIR JohnD had a few other examples.
> 
> Philip


OK. I have confirmed the hangup using csv2cell and cell2csv.  

The issue seems be gcc-4.9.2 (mingw-64) generated by mxe-octave is buggy.

I have uninstalled io package.

And set PATH to use gcc-4.9.2 (release 3) from mingw-64 project (mingw native 
build).
>> setenv('PATH',['C:\msys64\mingw64\bin;' getenv('PATH')])


>> system('gcc -v')
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=C:/msys64/mingw64/libexec/gcc/x86_64-w64-mingw32/4.9.2/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../../../src/gcc-4.9.2/configure --host=x86_64-w64-mingw32 
--build=x86_64-w64-m
ingw32 --target=x86_64-w64-mingw32 --prefix=/mingw64 
--with-sysroot=/c/mingw492/x86_64-492-win32
-seh-rt_v4-rev3/mingw64 
--with-gxx-include-dir=/mingw64/x86_64-w64-mingw32/include/c++ --enable-
shared --enable-static --disable-multilib 
--enable-languages=ada,c,c++,fortran,objc,obj-c++,lto
--enable-libstdcxx-time=yes --enable-threads=win32 --enable-libgomp 
--enable-libatomic --enable-
lto --enable-graphite --enable-checking=release --enable-fully-dynamic-string 
--enable-version-s
pecific-runtime-libs --disable-isl-version-check --disable-cloog-version-check 
--disable-libstdc
xx-pch --disable-libstdcxx-debug --enable-bootstrap --disable-rpath 
--disable-win32-registry --d
isable-nls --disable-werror --disable-symvers --with-gnu-as --with-gnu-ld 
--with-arch=nocona --w
ith-tune=core2 --with-libiconv --with-system-zlib 
--with-gmp=/c/mingw492/prerequisites/x86_64-w6
4-mingw32-static 
--with-mpfr=/c/mingw492/prerequisites/x86_64-w64-mingw32-static --with-mpc=/c/m
ingw492/prerequisites/x86_64-w64-mingw32-static 
--with-isl=/c/mingw492/prerequisites/x86_64-w64-
mingw32-static --with-cloog=/c/mingw492/prerequisites/x86_64-w64-mingw32-static 
--enable-cloog-b
ackend=isl --with-pkgversion='x86_64-win32-seh-rev3, Built by MinGW-W64 
project' --with-bugurl=h
ttp://sourceforge.net/projects/mingw-w64 CFLAGS='-O2 -pipe 
-I/c/mingw492/x86_64-492-win32-seh-rt
_v4-rev3/mingw64/opt/include 
-I/c/mingw492/prerequisites/x86_64-zlib-static/include -I/c/mingw49
2/prerequisites/x86_64-w64-mingw32-static/include' CXXFLAGS='-O2 -pipe 
-I/c/mingw492/x86_64-492-
win32-seh-rt_v4-rev3/mingw64/opt/include 
-I/c/mingw492/prerequisites/x86_64-zlib-static/include
-I/c/mingw492/prerequisites/x86_64-w64-mingw32-static/include' CPPFLAGS= 
LDFLAGS='-pipe -L/c/min
gw492/x86_64-492-win32-seh-rt_v4-rev3/mingw64/opt/lib 
-L/c/mingw492/prerequisites/x86_64-zlib-st
atic/lib -L/c/mingw492/prerequisites/x86_64-w64-mingw32-static/lib '
Thread model: win32
gcc version 4.9.2 (x86_64-win32-seh-rev3, Built by MinGW-W64 project)

And rebuild io package using it.

>> cd E:\usr\Tatsu\program\Octave\test4.0\64bit
>> C=csv2cell('test.csv')
C =
{
  [1,1] =  1
  [2,1] =  4
  [3,1] =  7
  [1,2] =  2
  [2,2] =  5
  [3,2] =  8
  [1,3] =  3
  [2,3] =  6
  [3,3] =  9
}
>> cell2csv('test2.csv',C)

Both csv2cell and cell2csv seems to work correctly.
Perhaps cross built of MinGW gcc-4.9.2 (64 bit) by mxe-octave is buggy but not 
gcc-4.9.2 MinGW (64bit) itself.

Tatsuro