How to rebuild/upgrade glibc

How to rebuild/upgrade glibc



This sample is update Glibc 2.5 to 2.7 (RHEL 5.3 x86)

Download package
ftp://ftp.gnu.org/gnu/glibc/glibc-2.7.tar.gz
ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-2.6.18.tar.gz
ftp://ftp.gnu.org/gnu/glibc/glibc-linuxthreads-2.5.tar.bz2


Prepare the kernel headers
# tar zxvf linux-2.6.18.tar.gz
# cd linux-2.6.18
# make mrproper
# make menuconfig
(you don't need to actually configure anything; just accept the defaults and then exit out of menuconfig)
# make dep  (ignore warning)
# mkdir -p /usr/include/linux-2.6.18
# cp -a include/linux /usr/include/linux-2.6.18/
# cp -a include/asm* /usr/include/linux-2.6.18/


Building glibc
# tar zxvf glibc-2.7.tar.gz  
# cp glibc-linuxthreads-2.5.tar.bz2 /glibc-2.7                      
# tar jxvf /glibc-2.7/glibc-linuxthreads-2.5.tar.bz2
# mkdir /build
# cd /build

# ../glibc-2.7/configure --prefix=/usr --disable-profile --enable-add-ons \
  --with-headers=/usr/include/ --libexecdir=/usr/bin
#vi config.make
add "-march=i686" after "CFLAGS = -g -O2"
# make  (If you meet error while make, you need to execute "make clean", then make again)
# make install
# ls /lib/libc-*
libc-2.7.so

Rerfer:
http://www.oregontechsupport.com/articles/glibc.php
http://www.linuxsir.org/bbs/thread368805.html