egcs 1.1b build problems

[joel at oarcorp.com (joel at oarcorp.com)]

It looks like adding the following to egcs-1.1b/config/t-rtems takes care
of the Erik I's pc386 build problem.  


# Don't install "assert.h" in gcc.  RTEMS uses the one in newlib.
INSTALL_ASSERT_H =

I have other reports of problems using egcs 1.1b so I am going to build
all the RTEMS toolsets and targets overnight and see what problems I run
into.  

--joel