Hi Ala, Ivan and all, Alan as I having backtrace problem in my FreeRadius v 2.0.5. I deleted all the old binaries and libraries for the earlier version.Then I got the latest FreeRadius v 2.1.1 tarball (Compresses tar.bz2) from freeradius.orgwebsite and started to build on SLES 10 SP2. And I copied the freeradius.spec in SPECS folder. When I try to compile, I got an rpm build error and compilation stopped. Please help me in this regard. SYED pc1138: /usr/src/packages/SOURCES # *rpmbuild -ba /usr/src/packages/SPECS/freeradius.spec* Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.25117 + umask 022 + cd /usr/src/packages/BUILD + cd /usr/src/packages/BUILD + rm -rf freeradius-server-2.1.1 + /usr/bin/bzip2 -dc /usr/src/packages/SOURCES/freeradius-server-2.1.1.tar.bz2 + tar -xf - + STATUS=0 + '[' 0 -ne 0 ']' + cd freeradius-server-2.1.1 ++ /usr/bin/id -u + '[' 0 = 0 ']' + /bin/chown -Rhf root . ++ /usr/bin/id -u + '[' 0 = 0 ']' + /bin/chgrp -Rhf root . + /bin/chmod -Rf a+rX,u+w,g-w,o-w . ++ find . -name CVS + rm -rf + exit 0 Executing(%build): /bin/sh -e /var/tmp/rpm-tmp.27085 + umask 022 + cd /usr/src/packages/BUILD + /bin/rm -rf /var/tmp/freeradius-server-2.1.1-build ++ dirname /var/tmp/freeradius-server-2.1.1-build + /bin/mkdir -p /var/tmp + /bin/mkdir /var/tmp/freeradius-server-2.1.1-build + cd freeradius-server-2.1.1 + export 'CFLAGS=-O2 -g -m32 -march=i586 -mtune=i686 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fno-strict-aliasing -DLDAP_DEPRECATED -fPIC -DPIC' + CFLAGS='-O2 -g -m32 -march=i586 -mtune=i686 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fno-strict-aliasing -DLDAP_DEPRECATED -fPIC -DPIC' + autoreconf configure.in:1140: warning: AC_CONFIG_SUBDIRS: you should use literals autoconf/status.m4:1077: AC_CONFIG_SUBDIRS is expanded from... configure.in:1140: the top level configure.in:1140: warning: AC_CONFIG_SUBDIRS: you should use literals autoconf/status.m4:1077: AC_CONFIG_SUBDIRS is expanded from... configure.in:1140: the top level configure.in:1140: warning: AC_CONFIG_SUBDIRS: you should use literals autoconf/status.m4:1077: AC_CONFIG_SUBDIRS is expanded from... configure.in:1140: the top level configure.in:547: error: possibly undefined macro: AC_LIB_READLINE If this token and others are legitimate, please use m4_pattern_allow. * * See the Autoconf documentation.* autoreconf: /usr/bin/autoconf failed with exit status: 1 error: Bad exit status from /var/tmp/rpm-tmp.27085 (%build)* *RPM build errors: Bad exit status from /var/tmp/rpm-tmp.27085 (%build)*