Re: [MXE MinGW] miscompiled gcc for --enable64?

[Philip Nienhuis]

JohnD wrote:
> Date: Fri, 5 Dec 2014 14:58:02 -0800 (PST)
> From: Philip Nienhuis <address@hidden>
> To: address@hidden
> Subject: [MXE MinGW] miscompiled gcc for --enable64?
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset=us-ascii
>
> With a cross-built mxe-octave with 64-bit indexing (--enable64), building OF
> packages fails because g++, gcc and c++ all bail out with the message:
>
> "C:\Programs\.....\bin\g++.exe is not a valid Win32 application."
> (of course, similarly for c++.exe and gcc.exe)
>
> In addition, cc.exe seems to be missing.
>
> Running these commands in an MSYS shell gives:
>
> address@hidden /c/programs/octave/octave64-3.9.0+-4.1.0+/bin
> $ gcc
> sh: ./gcc: Bad file number
> address@hidden /c/programs/octave/octave64-3.9.0+-4.1.0+/bin
> $ ls -l gcc
> -rwxr-xr-x 1 philip Administrators 0 Dec  5 21:02 gcc
>
> (funny, I'm not administrator but "user". Running MSYS as administrator
> doesn't make a difference though, I get the same issues)
>
> Can someone confirm this?
>
>
> __run_test_suite__ with 3.9.0+ (64bit indexing) gives:
> Summary:
>
>    PASS     11562
>    FAIL        12
>    XFAIL        9
>    SKIPPED     65
> (similar or equal to what I reported a few months ago on the task tracker
> (http://savannah.gnu.org/task/?13313).
>
>
> An older cross-built 64-bit indexing mingw Octave (Oct. 31; built on another
> machine) runs fine on the same box; gcc.exe, cc.exe, c++.exe and g++.exe
> yield meaningful messages.
>
>
> My build system: Mageia-4 64; mxe-octave: 8657bb199f09 tip @ (zeromq: update
> to v4.0.5)
> ./configure --enable-64     (and I've manually adapted octave.mk for 4.1.0+
> / 3.9.0+ checksums)
>
> Host system:  Windows 7 Prof. 64-bit
>
<snip>
> -----
>
> I made a new mxe-build with --enable-windows-64 last night on my system
> (current mxe hg as of last night), but only using octave 3.8.2.
>
> Built on mint linux 17
> Running  64 bit running in Win 7 Prof - service pack 1 - 64bit
>    PASS     11402
>    FAIL        16
>
> Running build_packages.m from the gui compiles everything ok

That surprises me.

First of all, for me the patch from this bug report is needed to make a 
few OF packages compile:
https://savannah.gnu.org/bugs/index.php?43318
(I'd appreciate if a core dev could review that patch, please)

But even with that patch, the following OF packages included in 
mxe-octave won't install at all with --enable-64:
- image
- odepkg
- fl-core
- netcdf

Have you tried "pkg list" to see which packages do get installed 
successfully?
As you've adapted build_packages.m to catch unsuccessful OF package 
installs (thanks for that BTW!) it is easy to overlook packages that 
didn't get installed.

<snip>

> I will retry with a later octave, however think it will run fine for me.

Now that I know that it is 7zip on the Windows side that doesn't unpack 
all files correctly from .tgz or .tar.gz archives, I think so too :-)

Philip