[root@admin trafficserver]# autoreconf -i
configure.ac:987: warning: AC_PROG_SED is m4_require'd but is not m4_defun'd
configure.ac:987: AC_PROG_SED is required by...
build/ax_path_generic.m4:164: AX_PATH_GENERIC is expanded from...
build/ax_lib_curl.m4:38: AX_LIB_CURL is expanded from...
configure.ac:987: the top level
configure.ac:987: warning: AC_PROG_SED is m4_require'd but is not m4_defun'd
configure.ac:987: AC_PROG_SED is required by...
build/ax_path_generic.m4:164: AX_PATH_GENERIC is expanded from...
build/ax_lib_curl.m4:38: AX_LIB_CURL is expanded from...
configure.ac:987: the top level
Putting files in AC_CONFIG_AUX_DIR, `build/aux'.
configure.ac:987: warning: AC_PROG_SED is m4_require'd but is not m4_defun'd
configure.ac:987: AC_PROG_SED is required by...
build/ax_path_generic.m4:164: AX_PATH_GENERIC is expanded from...
build/ax_lib_curl.m4:38: AX_LIB_CURL is expanded from...
configure.ac:987: the top level
configure.ac:987: warning: AC_PROG_SED is m4_require'd but is not m4_defun'd
configure.ac:987: AC_PROG_SED is required by...
build/ax_path_generic.m4:164: AX_PATH_GENERIC is expanded from...
build/ax_lib_curl.m4:38: AX_LIB_CURL is expanded from...
configure.ac:987: the top level
configure.ac:580: error: possibly undefined macro: AC_PROG_SED
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