Details on this package are located in Section 10.9.5, “Contents of EGLIBC.”
The EGLIBC package contains the main C library. This library provides the basic routines for allocating memory, searching directories, opening and closing files, reading and writing files, string handling, pattern matching, arithmetic, and so on.
It should be noted that compiling EGLIBC in any way other than the method suggested in this book puts the stability of the system at risk.
MIPS is not supported in the main EGLIBC tree, so we need the
eglibc-ports tarball. Unpack eglibc-ports-2.15-r21467:
tar -xvf ../eglibc-ports-2.15-r21467.tar.xz
Disable linking to libgcc_eh:
cp -v Makeconfig{,.orig}
sed -e 's/-lgcc_eh//g' Makeconfig.orig > Makeconfig
The following will cause EGLIBC to use an absolute path to the ldd-rewrite-script instead of a relative path:
cp -v config.make.in{,.orig}
sed '/ldd-rewrite-script/s:@:${objdir}/&:' config.make.in.orig > config.make.in
The EGLIBC documentation recommends building EGLIBC outside of the source directory in a dedicated build directory:
mkdir -v ../eglibc-build cd ../eglibc-build
The following lines need to be added to config.cache for EGLIBC to support NPTL:
cat > config.cache << "EOF" libc_cv_forced_unwind=yes libc_cv_c_cleanup=yes libc_cv_gnu89_inline=yes libc_cv_ssp=no EOF
Tell EGLIBC to install its 32-bit libraries into /tools/lib32:
echo "slibdir=/tools/lib32" >> configparms
Prepare EGLIBC for compilation:
BUILD_CC="gcc" CC="${CLFS_TARGET}-gcc ${BUILDN32}" \
AR="${CLFS_TARGET}-ar" RANLIB="${CLFS_TARGET}-ranlib" \
../eglibc-2.15/configure --prefix=/tools \
--host=${CLFS_TARGET} --build=${CLFS_HOST} --libdir=/tools/lib32 \
--disable-profile --with-tls --enable-kernel=2.6.32 --with-__thread \
--with-binutils=/cross-tools/bin --with-headers=/tools/include \
--cache-file=config.cache
The meaning of the new configure options:
CC="${CLFS_TARGET}-gcc
${BUILDN32}"
Forces EGLIBC to utilize our target architecture GCC utilizing the N32 flags.
--libdir=/tools/lib32
Installs EGLIBC into /tools/lib32 instead of /tools/lib.
During this stage the following warning might appear:
configure: WARNING: *** These auxiliary programs are missing or *** incompatible versions: msgfmt *** some features will be disabled. *** Check the INSTALL file for required versions.
The missing or incompatible msgfmt program is generally harmless. This msgfmt program is part of the Gettext package which the host distribution should provide.
Compile the package:
make
Install the package:
make install inst_vardbdir=/tools/var/db
Details on this package are located in Section 10.9.5, “Contents of EGLIBC.”