Hi guys,

I just wonder how to build LFS without GCC.

In my case, I would like to utilize my old Pentium III to become PC router and firewall.

1. First, I will construct temporary tool complete with GCC (chapter five)
2. In chapter six
-> Linux API Headers
-> Glibc, Zlib, File, Binutils
-> Only Libstdc++, no GCC
-> For the rest, just compile packages needed
-> Linux kernel
3. Some package in BLFS, like iptables, sshd, network maneger, and any packages needed would alse be compiled in chroot environment.

Please enlighten me.

Um... You have to have GCC because of how you work things in. Not everything can be built with the host.

I only have old 4 GB hard drive and 128 MB SDRAM on my old Pentium-III.
I think it should be enough to run PC Router and Firewall.

Because the hard drive capacity is so small, so I should not install to many packages.
Only few packages required to build the system (and of course it required dependencies).

Most program would search for glibc & libstdc++ besides their dependencies,
so I think it would be OK not to build GCC in order to save space.
All programs build in chroot, and it will be linked to glibc and libstdc++
in real system (I will build this system on my i5 laptop).

Please enlighten me again, whether this would work or not.
Or I must put GCC to make the system works.

Look into CLFS rather than LFS, mainly the x86 imbedded versions if your goal is a firewall/router setup.

http://clfs.org/view/clfs-embedded/x86/

It'll be small.

Thanks ReaperX7

First, I'll follow the book first, to understand the concept.
After that, I'll customize to meet my need.

For know I consider this as "solved"