***** aclocal *****
***** PWD: /var/tmp/portage/dev-libs/libmcrypt-2.5.8-r3/work/libmcrypt-2.5.8/libltdl
***** aclocal

aclocal-1.13: warning: autoconf input should be named 'configure.ac', not 'configure.in'
acinclude.m4:3740: warning: the serial number must appear before any macro definition
configure.in:25: error: 'AM_CONFIG_HEADER': this macro is obsolete.
    You should use the 'AC_CONFIG_HEADERS' macro instead.
/usr/share/aclocal-1.13/obsolete-err.m4:12: AM_CONFIG_HEADER is expanded from...
configure.in:25: the top level
autom4te-2.69: /usr/bin/m4 failed with exit status: 1
aclocal-1.13: error: echo failed with exit status: 1