obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 36 insertions, 0 deletions

diff --git a/gcc/testsuite/gfortran.dg/fmt_cache_2.f b/gcc/testsuite/gfortran.dg/fmt_cache_2.f
new file mode 100644
index 000000000..f557a166c
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/fmt_cache_2.f
@@ -0,0 +1,36 @@
+! { dg-do run }
+! PR42742 Handle very large format strings correctly
+! Test derived from example developed by Manfred Schwarb.
+      character(12) bufarr(74)
+      character(74*13+30) fmtstr,fmtstr2
+      character(1) delim
+      integer i,j,dat(5),pindx, loopcounter
+      character(983) big_string ! any less and this test fails.
+
+      do i=1,74
+        write(bufarr(i),'(i12)') i
+      enddo
+
+      delim=" "
+      dat(1)=2009
+      dat(2)=10
+      dat(3)=31
+      dat(4)=3
+      dat(5)=0
+      fmtstr="(i2,i6,4(a1,i2.2)"
+      open(10, status="scratch")
+      do j=1,74
+        fmtstr=fmtstr(1:len_trim(fmtstr))//",a1,a12"
+        fmtstr2=fmtstr(1:len_trim(fmtstr))//")"
+c        write(0,*) "interation ",j,": ",len_trim(fmtstr2)
+        do i=1,10
+          write(10,fmtstr2)
+     &           i,dat(1),"-",dat(2),"-",dat(3),
+     &           delim,dat(4),":",dat(5),
+     &           (delim,bufarr(pindx),pindx=1,j)
+        enddo
+        loopcounter = j
+      enddo
+      close(10)
+      if (loopcounter /= 74) call abort
+      end