[PPL-devel] PPL requires a recent version of m4

[Jeroen Demeyer]

Dear PPL developers,

The PPL library requires a recent version of GNU m4, but this isn't
documented anywhere as far as I can tell, certainly not here:
http://bugseng.com/products/ppl/requirements
http://bugseng.com/products/ppl/portability

In particular, it fails to configure on OS X 10.4:

$ ./configure
checking build system type... powerpc-apple-darwin8.11.0
checking host system type... powerpc-apple-darwin8.11.0
[...]
checking for GNU M4 that supports accurate traces... configure: error:
no acceptable m4 could be found in $PATH.
GNU M4 1.4.5 or later is required; 1.4.11 is recommended

$ m4 --version
GNU m4 1.4.2


Do the m4-generated files depend on the architecture?  If not, you could
simply ship them with PPL and not require m4.


Saluti,
Jeroen.