executables runnable only if "exe_wrapper" is unset, but it must be set

[sityvb]

I am trying to cross compile a gtk-rs app to Windows.

My cross file is:

[binaries]
c = 'x86_64-w64-mingw32-gcc'
cpp = 'x86_64-w64-mingw32-g++'
ar = 'x86_64-w64-mingw32-ar'
strip = 'x86_64-w64-mingw32-strip'
rust = ['rustc', '--target', 'x86_64-pc-windows-gnu']
windres = 'x86_64-w64-mingw32-windres'


[host_machine]
system = 'windows'
cpu_family = 'x86_64'
cpu = 'x86_64'
endian = 'little'

If I do not set exe_wrapper everything seems to work fine but in the end I get:
meson.build:18:6: ERROR: An exe_wrapper is needed but was not found. Please define one in cross file and check the command and/or add it to PATH.

But if I define it to "wine64" or the full path, setup immediately fails with
meson.build:1:0: ERROR: Executables created by Rust compiler rustc --target x86_64-pc-windows-gnu -C linker=x86_64-w64-mingw32-gcc are not runnable.
Yet if I try to run the program with wine64 that is in meson-private, it runs fine.

[eli-schwartz]

What's the contents of the log file?

[sityvb]

With it set:

Build started at 2022-12-28T17:50:00.412871
Main binary: /usr/bin/python3
Build Options: -Dgtk:media-gstreamer=disabled -Dgtk:introspection=disabled -Dlibadwaita:introspection=disabled --cross-file=x86_64-w64-mingw32.txt
Python system: Linux
The Meson build system
Version: 1.0.0
Source dir: /home/user/Projects/estiomage
Build dir: /home/user/Projects/estiomage/build-mingw
Build type: cross build
Project name: estiomage
Project version: 0.1.0
-----
Detecting compiler via: x86_64-w64-mingw32-gcc --version
compiler returned <Popen: returncode: 0 args: ['x86_64-w64-mingw32-gcc', '--version']>
compiler stdout:
x86_64-w64-mingw32-gcc (GCC) 10-win32 20210110
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


compiler stderr:

Running command: x86_64-w64-mingw32-gcc -E -dM -
-----
Detecting linker via: x86_64-w64-mingw32-gcc -Wl,--version
linker returned <Popen: returncode: 0 args: ['x86_64-w64-mingw32-gcc', '-Wl,--version']>
linker stdout:
GNU ld (GNU Binutils) 2.35.2
Copyright (C) 2020 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.

linker stderr:
collect2 version 10-win32 20210110
/usr/bin/x86_64-w64-mingw32-ld -plugin /usr/lib/gcc/x86_64-w64-mingw32/10-win32/liblto_plugin.so -plugin-opt=/usr/lib/gcc/x86_64-w64-mingw32/10-win32/lto-wrapper -plugin-opt=-fresolution=/tmp/cc13IFHz.res -plugin-opt=-pass-through=-lmingw32 -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_eh -plugin-opt=-pass-through=-lmoldname -plugin-opt=-pass-through=-lmingwex -plugin-opt=-pass-through=-lmsvcrt -plugin-opt=-pass-through=-ladvapi32 -plugin-opt=-pass-through=-lshell32 -plugin-opt=-pass-through=-luser32 -plugin-opt=-pass-through=-lkernel32 -plugin-opt=-pass-through=-lmingw32 -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_eh -plugin-opt=-pass-through=-lmoldname -plugin-opt=-pass-through=-lmingwex -plugin-opt=-pass-through=-lmsvcrt -m i386pep -Bdynamic /usr/lib/gcc/x86_64-w64-mingw32/10-win32/../../../../x86_64-w64-mingw32/lib/crt2.o /usr/lib/gcc/x86_64-w64-mingw32/10-win32/crtbegin.o -L/usr/lib/gcc/x86_64-w64-mingw32/10-win32 -L/usr/lib/gcc/x86_64-w64-mingw32/10-win32/../../../../x86_64-w64-mingw32/lib --version -lmingw32 -lgcc -lgcc_eh -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc -lgcc_eh -lmoldname -lmingwex -lmsvcrt /usr/lib/gcc/x86_64-w64-mingw32/10-win32/crtend.o


meson.build:1:0: ERROR: Executables created by Rust compiler rustc --target x86_64-pc-windows-gnu -C linker=x86_64-w64-mingw32-gcc are not runnable.

[sityvb]

Solved the issue:
It was trying to run rusttest, but the executable was rusttest.exe

Simply editing

meson/mesonbuild/compilers/rust.py

Line 74 in 0544ffa

output_name = os.path.join(work_dir, 'rusttest')

to "rusttest.exe" solved the issue.