Open boozook opened 2 months ago
As an ugly workaround I could suggest something like this:
// save original to restore later:
let orig_target = std::env::var_os("TARGET")?;
// choose one of "override" or "by cargo":
let target = std::env::var_os("AUTOCONF_TARGET").or_else(|| env::var_os("TARGET"))?;
// override target for current use for autocfg:
std::env::set_var("TARGET", target);
let mut ac = autocfg::new();
ac.emit_expression_cfg("1f64.total_cmp(&2f64)", "has_total_cmp"); // 1.62
// do some needed...
autocfg::rerun_path("build.rs");
// restore original target for future use:
std::env::set_var("TARGET", orig_target);
And so we can override the target passed to autoconf with env AUTOCONF_TARGET
.
There is
autocfg
can't determine target details for custom target-spec (json file).Error: