With a clean, minimal RH 8.0 install, I try to build gcc-3.0.4 [ since I need
it's ABI ]:
mkdir ~/tmp ; cd ~/tmp
tar xzf gcc-3.0.4
cd gcc*
./configure --prefix=/home/michael/tmp
make
...
In file included from locale.cc:557:
/home/michael/tmp/gcc-3.0.4/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu/bits/ctype_noninline.h:
In
   constructor `std::ctype<char>::ctype(const short unsigned int*, bool, 
   unsigned int)':
/home/michael/tmp/gcc-3.0.4/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu/bits/ctype_noninline.h:44:
`__ctype_toupper'
   undeclared (first use this function)
/home/michael/tmp/gcc-3.0.4/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu/bits/ctype_noninline.h:44:
(Each
   undeclared identifier is reported only once for each function it appears 
   in.)
/home/michael/tmp/gcc-3.0.4/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu/bits/ctype_noninline.h:44:
`__ctype_tolower'
   undeclared (first use this function)
/home/michael/tmp/gcc-3.0.4/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu/bits/ctype_noninline.h:45:
`__ctype_b'
   undeclared (first use this function)
make[3]: *** [locale.lo] Error 1
make[3]: Leaving directory
`/home/michael/tmp/gcc-3.0.4/i686-pc-linux-gnu/libstdc++-v3/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory
`/home/michael/tmp/gcc-3.0.4/i686-pc-linux-gnu/libstdc++-v3'
make[1]: *** [all-recursive-am] Error 2
make[1]: Leaving directory
`/home/michael/tmp/gcc-3.0.4/i686-pc-linux-gnu/libstdc++-v3'
make: *** [all-target-libstdc++-v3] Error 2


Other compilers such as gcc-3.2.1 build just fine; this same package builds
perfectly on RH 7.3. Is it not the case that gcc should be buildable on a load
of different, flakey systems such as AIX, Solaris etc. ? what gives ? glibc ?