diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 22ea531d78d..6bef88f2fc9 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-03-20  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR fortran/43409
+	* gfortran.dg/inquire_size.f90: New test.
+
 2010-03-20  Richard Guenther  <rguenther@suse.de>
 
 	PR rtl-optimization/43438
diff --git a/gcc/testsuite/gfortran.dg/inquire_size.f90 b/gcc/testsuite/gfortran.dg/inquire_size.f90
new file mode 100644
index 00000000000..568c3d6a0f3
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/inquire_size.f90
@@ -0,0 +1,28 @@
+! { dg-do run }
+! PR43409 I/O: INQUIRE for SIZE does not work.
+integer :: i
+character(30) :: aname = "noname"
+logical :: is_named
+
+open(25, file="testfile", status="replace", access="stream", form="unformatted")
+do i=1,100
+  write(25) i, "abcdefghijklmnopqrstuvwxyz"
+enddo
+flush(25)
+
+inquire(unit=25, named=is_named, name=aname, size=i)
+if (.not.is_named) call abort
+if (aname /= "testfile") call abort
+if (i /= 3000) call abort
+
+inquire(file="testfile", size=i)
+if (.not.is_named) call abort
+if (aname /= "testfile") call abort
+if (i /= 3000) call abort
+
+close(25, status="delete")
+inquire(file="testfile", size=i)
+if (i /= -1)  call abort
+end
+
+