Installing GCC-3.2.1

Estimated build time:           9.48 SBU
Estimated required disk space:  326 MB

Contents of GCC

Last checked against version 3.1.

The GCC package contains the GNU compiler collection, including the C and C++ compilers.

GCC installs the following files:

Program Files

c++, c++filt, cc (link to gcc), cc1, cc1plus, collect2, cpp, cpp0, g++, gcc, gccbug, gcov and tradcpp0

Library Files

libgcc.a, libgcc_eh.a, libgcc_s.so, libiberty.a, libstdc++.[a,so], libsupc++.a

GCC Installation Dependencies

Last checked against version 2.95.3.

Bash: sh
Binutils: ar, as, ld, nm, ranlib
Diffutils: cmp
Fileutils: chmod, cp, ln, ls, mkdir, mv, rm, touch
Find: find
Gcc: cc, cc1, collect2, cpp0, gcc
Grep: egrep, grep
Make: make
Sed: sed
Sh-utils: basename, dirname, echo, expr, hostname, sleep, true, uname
Tar: tar
Texinfo: install-info, makeinfo
Textutils: cat, tail, tr

Installation of GCC

We won't be needing a C++ compiler until Chapter 6. So, only the gcc-core tarball needs to be unpacked at this time.

This package is known to behave badly when you have changed its default optimization flags (including the -march and -mcpu options). Therefore, if you have defined any environment variables that override default optimizations, such as CFLAGS and CXXFLAGS, we recommend unsetting or modifying them when building GCC.

It is recommended by the GCC installation documentation to build GCC outside of the source directory in a dedicated directory:

mkdir ../gcc-build
cd ../gcc-build

Prepare GCC to be compiled:

../gcc-3.2.1/configure --prefix=/static \
���--disable-nls --disable-shared \
���--with-as=$LFS/static/bin/as \
���--with-ld=$LFS/static/bin/ld

The meaning of the configure options are:

Continue with compiling the package:

make BOOT_LDFLAGS="-static" bootstrap

The meaning of the make options are:

And finish off installing the package:

make prefix=$LFS/static install-no-fixedincludes

The meaning of the make option is:

As the finishing touch we'll create the $LFS/static/bin/cc symlink. A lot of programs and scripts try to run cc instead of gcc This is to keep programs generic and usable on all kinds of Unix systems. Not everybody has GNU CC installed. Just running cc (C Compiler) leaves the user free to decide which C compiler to install. The symlink will point to the system's default compiler.

ln -s gcc $LFS/static/bin/cc