diff options
Diffstat (limited to 'dev/doc/ocamlbuild.txt')
| -rw-r--r-- | dev/doc/ocamlbuild.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/dev/doc/ocamlbuild.txt b/dev/doc/ocamlbuild.txt new file mode 100644 index 00000000..efedbc50 --- /dev/null +++ b/dev/doc/ocamlbuild.txt @@ -0,0 +1,30 @@ +Ocamlbuild & Coq +---------------- + +A quick note in case someone else gets interested someday in compiling +Coq via ocamlbuild : such an experimental build system has existed +in the past (more or less maintained from 2009 to 2013), in addition +to the official build system via gnu make. But this build via +ocamlbuild has been severly broken since early 2014 (and don't work +in 8.5, for instance). This experiment has attracted very limited +interest from other developers over the years, and has been quite +cumbersome to maintain, so it is now officially discontinued. +If you want to have a look at the files of this build system +(especially myocamlbuild.ml), you can fetch : + - my last effort at repairing this build system (up to coqtop.native) : + https://github.com/letouzey/coq-wip/tree/ocamlbuild-partial-repair + - coq official v8.5 branch (recent but broken) + - coq v8.4 branch(less up-to-date, but works). + +For the record, the three main drawbacks of this experiments were: + - recurrent issues with circularities reported by ocamlbuild + (even though make was happy) during the evolution of Coq sources + - no proper support of parallel build + - quite slow re-traversal of already built things +See the two corresponding bug reports on Mantis, or +https://github.com/ocaml/ocamlbuild/issues/52 + +As an interesting feature, I successfully used this to cross-compile +Coq 8.4 from linux to win32 via mingw. + +Pierre Letouzey, june 2016 |