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diff --git a/gcc/testsuite/gfortran.dg/namelist_38.f90 b/gcc/testsuite/gfortran.dg/namelist_38.f90
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+++ b/gcc/testsuite/gfortran.dg/namelist_38.f90
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+! { dg-do run }
+! PR33253 namelist: reading back a string, also fixed writing with delimiters.
+! Test case modified from that of the PR by
+! Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+program main
+  implicit none
+  character(len=3) :: a
+  namelist /foo/ a
+
+  open(10, status="scratch", delim="quote")
+  a = 'a"a'
+  write(10,foo) 
+  rewind 10
+  a = ""
+  read (10,foo) ! This gave a runtime error before the patch.
+  if (a.ne.'a"a') call abort
+  close (10)
+
+  open(10, status="scratch", delim="apostrophe")
+  a = "a'a"
+  write(10,foo) 
+  rewind 10
+  a = ""
+  read (10,foo)
+  if (a.ne."a'a") call abort
+  close (10)
+
+  open(10, status="scratch", delim="none")
+  a = "a'a"
+  write(10,foo) 
+  rewind 10
+  a = ""
+  read (10,foo)
+  if (a.ne."a'a") call abort
+  close (10)
+end program main