Windows binaries don't run on Windows 7 · fyne-io/fyne#1923

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説明

Binaries built on macOS run on Windows 10 Pro, but not on Windows 7 Home Edition Premium.

Steps to reproduce the behaviour:

On macOS, copy the First App from https://developer.fyne.io/started/firstapp, procure an image to use as an icon, say someimage.png
Install the XCode CLI development tools with xcode-select --install
Install MinGW with brew install mingw-w64
Build the app with CGO_ENABLED=1 CC=x86_64-w64-mingw32-gcc fyne package -os windows -icon someimage.png
Check the binary with file firstapp.exe, it shows PE32+ executable (GUI) x86-64, for MS Windows.
Transfer the binary to a W10 PRo and a W7 machine.
It runs on the former, and is rejected on the latter, with an error about it not being for the proper windows version.
Alternatively, trying to build a 32-bit version with CGO_ENABLED=1 CC=i686-w64-mingw32-gcc fyne package -os windows -icon someimage.png fails with cc1: sorry, unimplemented: 64-bit mode not compiled in.

OS: Dev: macOS, Target: Windows
Version: Dev: both Catalina and Big Sur, Target: Windows 10 Pro, Windows 7 Home Edition Premium
Go version: 1.15.8
Fyne version: fyne.io/fyne/v2 v2.0.0

技術スタック: go
領域: desktop
Issue 種別: bug
難度: 3
推定時間: 1-3 hours
活動状況: stale
明確さ: mostly clear
前提条件: Go basicsCross compilationMinGW setup
初心者向け度: 50
調査方針: Investigate the MinGW version used during cross compilation. Check if the binary links to Windows 10 specific APIs. Consider using older MinGW or setting appropriate flags. Look at issue comments for potential solutions.