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Emit warning when running under an unsupported version of WSL

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Closes #5661. Ping #5298.
This commit is contained in:
Mahmoud Al-Qudsi 2019-02-14 18:17:58 -06:00
parent 9796a331bc
commit 552af31ab0
1 changed files with 11 additions and 1 deletions
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12
src/common.cpp
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@ -171,7 +171,17 @@ bool is_windows_subsystem_for_linux() {
uname(&info);
// Sample utsname.release under WSL: 4.4.0-17763-Microsoft
return strstr(info.release, "Microsoft") != nullptr;
if (strstr(info.release, "Microsoft") != nullptr) {
const char *dash = strchr(info.release, '-');
if (dash == nullptr || strtod(dash + 1, nullptr) < 17763) {
debug(1, "This version of WSL is not supported and fish will probably not work correctly!\n"
"Please upgrade to Windows 10 1809 (17763) or higher to use fish!");
}
return true;
} else {
return false;
}
}();
// Subsequent calls to this function may take place after fork() and before exec() in