cpp crashes after "macro used with just one arg"

[Jeffrey A Law]

  In message <wsso565oxv.fsf@orcus.priv.at>you write:
  > 
  > --=-=-=
  > 
  > Hi,
  > 
  > this is the cpp included with gcc-2.95 on i586-linux-2.2.10 (glibc
  > 2.1.1). When fed this program
  > 
  > 
  > --=-=-=
  > Content-Type: text/x-c
  > Content-Disposition: inline; filename=cpp-test.c
  > 
  > #define TEST(F,E) do { printf("%s = %" #F "\n", #E, E) } while(0)
  > 
  > int main()
  > {
  >   TEST(unsetenv);
  > }
  > 
  > --=-=-=
  > 
  > 
  > cpp outputs
  >         cpp-test.c:5: macro `TEST' used with just one arg
  > and then crashes with a SIGSEGV.
  > 
  > gdb neither delivered a sensible backtrace (only that the crash
  > occured in chunk_free (libc?)), nor did the crash occur when stepping
  > through the code. If gdb is not used, the bug is completely
  > reproducible here.
I believe this bug has been fixed in the development sources.

Thanks,
jeff