Hi, I have been building Freeswitch both git head and 1.2.rc2 on CentOS 5 for some time. However the stable tarball of 1.2.0 fails using the spec file supplied with the error: libtool: link: ( cd ".libs" && rm -f "libcurl.la" && ln -s "../libcurl.la" "libcurl.la" ) make[3]: Leaving directory `/home/rpmbuild/BUILD/freeswitch-1.2.0/libs/curl/lib' make[2]: Leaving directory `/home/rpmbuild/BUILD/freeswitch-1.2.0/libs/curl/lib' Making all in src make[2]: Entering directory `/home/rpmbuild/BUILD/freeswitch-1.2.0/libs/curl/src' (CDPATH="${ZSH_VERSION+.}:" && cd .. && autoheader) aclocal.m4:20: warning: this file was generated for autoconf 2.63. You have another version of autoconf. It may work, but is not guaranteed to. If you have problems, you may need to regenerate the build system entirely. To do so, use the procedure documented by the package, typically `autoreconf'. configure.ac:65: error: Autoconf version 2.62 or higher is required aclocal.m4:8467: AM_INIT_AUTOMAKE is expanded from... configure.ac:65: the top level autom4te: /usr/bin/m4 failed with exit status: 63 autoheader: /usr/bin/autom4te failed with exit status: 63 make[2]: *** [config.h.in] Error 63 make[2]: Leaving directory `/home/rpmbuild/BUILD/freeswitch-1.2.0/libs/curl/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/rpmbuild/BUILD/freeswitch-1.2.0/libs/curl' make: *** [libs/curl/lib/libcurl.la] Error 2 error: Bad exit status from /home/rpmbuild/tmp/rpm-tmp.30829 (%build) RPM build errors: Bad exit status from /home/rpmbuild/tmp/rpm-tmp.30829 (%build) Have the minimum requirements changed for Freeswitch? Thanks Tom