In addition: - when generating the manpage, set its date based on the date of the actual latest change in git - don't update manpage automatically during "make doc" as it may not always run from a cloned git repo
Fix distclean target
This was affecting serialization runtime ("piqi server" and piqilib/OCaml).
This fixes the actual problem in piqi-ocaml when the runtime was trying to locate imported modules in the filesystem during initialization.
…see #43) When Piqi looks for included or imported `.piqi` module by its module name, it tris one or more directories until it finds the matching file. The lookup order is defined as follows: - directory from which the referring module was loaded - search paths explicitly provided by using the `-I ..` command-line parameter, which can be specified more than once - current working directory (`.`) - search paths listed in the `PIQI_PATH` environment variable, with several paths separated by `:`.
…oolchain Drop support for MinGW/Msys builds. They worked only with really old OCaml 3.11
…ions The pa_labelscope camlp4 extensions is kept as a part of the piqilib package so that existing programs can still use it.