I'm trying to install the current stable version of LFS, and I get an error when I try to install GCC-3.4.3 in sectoin 6.14:

In file included from ../../gcc-3.4.3/gcc/crtstuff.c:62:
../../gcc-3.4.3/gcc/tsystem.h:79:19: stdio.h: No such file or directory
../../gcc-3.4.3/gcc/tsystem.h:82:23: sys/types.h: No such file or directory
../../gcc-3.4.3/gcc/tsystem.h:85:19: errno.h: No such file or directory
../../gcc-3.4.3/gcc/tsystem.h:92:20: string.h: No such file or directory
../../gcc-3.4.3/gcc/tsystem.h:93:20: stdlib.h: No such file or directory
../../gcc-3.4.3/gcc/tsystem.h:94:20: unistd.h: No such file or directory
In file included from /sources/gcc-build/gcc/include/syslimits.h:7,
from /sources/gcc-build/gcc/include/limits.h:11,
from ../../gcc-3.4.3/gcc/tsystem.h:97,
from ../../gcc-3.4.3/gcc/crtstuff.c:62:
/sources/gcc-build/gcc/include/limits.h:122:61: limits.h: No such file or directory
In file included from ../../gcc-3.4.3/gcc/crtstuff.c:62:
../../gcc-3.4.3/gcc/tsystem.h:100:18: time.h: No such file or directory
make[1]: *** [crtbegin.o] Error 1
make[1]: Leaving directory `/sources/gcc-build/gcc'
make: *** [all-gcc] Error 2


What do I do?

Reinstall glibc may help!

I had the same problem but i solved it by realizing that i had incorrectly typed the parameters to the make command
specifically i was missing the following:
--libexecdir=/tools/lib
--with-local-prefix=/tools

also make sure that you type your parameter with a space and then the slash. Thus:
../gcc-3.4.3/configure \
--prefix=/tools \
--libexecdir=/tools/lib \
--with-local-prefix=/tools \
--enable-clocale=gnu \
--enable-shared \
--enable-threads=posix \
--enable-__cxa_atexit \
--enable-languages=c,c++ \
--disable-libstdcxx-pch
Worked for me. Feel free to copy paste