1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/extends_10.f03 b/gcc/testsuite/gfortran.dg/extends_10.f03
new file mode 100644
index 00000000000..fbcaa7efc3f
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/extends_10.f03
@@ -0,0 +1,34 @@
+! { dg-do compile }
+!
+! PR 42545: type extension: parent component has wrong accessibility
+!
+! Reported by Reinhold Bader <bader@lrz.de>
+
+module mo
+  implicit none
+  type :: t1
+    integer :: i = 1
+  end type
+  type, extends(t1) :: t2
+    private
+    real :: x = 2.0
+  end type
+  type :: u1
+    integer :: j = 1
+  end type
+  type, extends(u1) :: u2
+    real :: y = 2.0
+  end type
+  private :: u1
+end module
+
+program pr
+  use mo
+  implicit none
+  type(t2) :: a
+  type(u2) :: b
+  print *,a%t1%i
+  print *,b%u1%j  ! { dg-error "is a PRIVATE component of" }
+end program
+
+! { dg-final { cleanup-modules "mo" } }