The previous approach to use _tags to get tags to compile
myocamlbuild.ml had one irritating downside: it would also take the
tags of the (true: foo) lines, which are certainly not intended by the
user to be applied to plugin compilation as well.
These additional tags looked mostly harmless. Of course, it turns out
that there is one case where they're not: as the plugin compilation
command already links "unix.cma" with the plugin, a user having
`true: use_unix` or `true: package(unix)` in its _tags file would get
a plugin compilation error due to double-linking of unix.cmxa. This
caused a regression breaking build in some projects, which is not
acceptable.
The current approach of using a specific command-line option is a bit
more annoying for end-users (you have to retype it each time, or script
ocamlbuild invocation from somewhere else), so we expect it to get
less widely used. It is still interesting for OASIS for example, or
people already using a convenience wrapper (eg. corebuild).
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14035 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
ocamlfind library management has been around for while and is
considered to be installed by default on any OCaml system. Therefore
it's safe to assume that the default behavior of ocamlbuild should be
to use new ocamlfind support normally enabled explicitly by
-use-ocamlfind flag. The -use-ocamlfind flag has now a status of
depreceation and instead new flag -no-ocamlfind causes ocamlbuild to
not try to use new set of parametric tags for supporting ocamlfind.
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13938 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
* -short-paths is activated via the "short_paths" tag
* -principal is activated via the "principal" tag
* -strict_sequence now has a "strict_sequence" tag to alias the
"strict-sequence" tag that was already there, to follow the
convention of command-line options having dashes replaced by
underscores. It's easy to mess this up since incorrect tags
are silently ignored by ocamlbuild.
Add test cases that check if principal and strict-sequence have
been passed, and tweak the test suite slightly to make it easier
to match on failing_msg output.
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13859 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Xavier Leroy
Gabriel Scherer
Wojciech Meyer