You need to include the ./ since it is a local script like ./configure.  So its:

./autogen.sh
./configure
make

.hc

autogen.sh is only present in a number of cygwin/usr/share/doc/gettext/examples/....

It should be in the root of the Pd source, in pd/autogen.sh, not pd/src/autogen.sh.  If its not there, then the source is not complete, and you can get it from git.

.hc


sorry hans,

it could be i'm completely blind,
but it' s not in pd-0.43.1 test5,
nor in the stable pd-0.43 download

rolf