internal/rosa: insert musl when cross-compiling

This is otherwise never added to the cross root.

Signed-off-by: Ophestra <cat@gensokyo.uk>

1 files changed, 6 insertions, 1 deletions

diff --git a/internal/rosa/rosa.go b/internal/rosa/rosa.go
index 2241788f..7123de6e 100644
--- a/internal/rosa/rosa.go
+++ b/internal/rosa/rosa.go
@@ -340,6 +340,8 @@ type PackageAttr struct {
 
 	// Whether the [Helper] behaves identically across all architectures.
 	NoArch bool
+	// Whether libc can be omitted.
+	NoLibc bool
 	// Inputs added only during cross-compilation.
 	Cross P
 	// Native utilities used by the build process.
@@ -434,7 +436,7 @@ func (t Toolchain) New(
 	cross := t.cross()
 	var rootCross []pkg.Artifact
 	if cross {
-		rootCross = make([]pkg.Artifact, 0, len(inputs)+len(attr.Cross))
+		rootCross = make([]pkg.Artifact, 0, 1+len(inputs)+len(attr.Cross))
 	}
 
 	const lcMessages = "LC_MESSAGES=C.UTF-8"
@@ -534,6 +536,9 @@ func (t Toolchain) New(
 				root = t.appendHandle(root, spv, p)
 			}
 		} else {
+			if !attr.NoLibc {
+				rootCross = t.appendHandle(rootCross, spv, _musl)
+			}
 			for _, p := range inputs {
 				rootCross = t.appendHandle(rootCross, spv, p)
 			}