Support given in build.sbt

buildfile/src/main/scala/sbt/internal/EvaluateConfigurations.scala

@@ -350,8 +350,8 @@ object BuildUtilLite:
   /** Prepend `_root_` and import just the names. */
   def importNamesRoot(names: Seq[String]): Seq[String] = importNames(names map rootedName)
 
-  /** Wildcard import `._` for all values. */
-  def importAll(values: Seq[String]): Seq[String] = importNames(values map { _ + "._" })
+  /** Wildcard import `.{*, given}` for all values. */
+  def importAll(values: Seq[String]): Seq[String] = importNames(values map { _ + ".{*, given}" })
   def importAllRoot(values: Seq[String]): Seq[String] = importAll(values map rootedName)
   def rootedName(s: String): String = if (s contains '.') "_root_." + s else s
 end BuildUtilLite

sbt-app/src/sbt-test/project-load/build-sbt-given/build.sbt

@@ -0,0 +1,9 @@
+given Foo[Int] = Foo(2)
+
+given s: Foo[String] = Foo("a")
+
+InputKey[Unit]("check") := {
+  assert(summon[Foo[Int]].value == 2)
+  assert(summon[Foo[String]].value == "a")
+  assert(s.value == "a")
+}

sbt-app/src/sbt-test/project-load/build-sbt-given/project/Foo.scala

@@ -0,0 +1 @@
+case class Foo[A](value: A)

sbt-app/src/sbt-test/project-load/build-sbt-given/test

@@ -0,0 +1 @@
+> check