Using two temporary directories for the generation of “ocamlbuild_pack.cm*” #248
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Sure, makes sense. |
elfring
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Jul 17, 2017
…on working together with Autoconf and Automake
The provided make script contained restrictions for storage locations
according to the combination of source files and the corresponding generation
of further file variants. These software limitations were lifted by the
addition of two build scripts which use functionality from the tools
“Autoconf” and “Automake” to some degree.
Some build settings were adjusted in the way that make rules are automatically
constructed by special function calls.
The dependency on the tool “GNU Make” was expressed then.
This development result is published despite of known open issues.
Examples:
1) Generation approach for the manual with the version “OCaml 4.03.0-3.1”
on an openSUSE Tumbleweed system
elfring@Sonne:~/Projekte/Bau/OCamlbuild> rm -f man/options_man.byte && LANG=C OCAMLRUNPARAM=b make man/ocamlbuild.options.1
…
man/options_man.byte > man/ocamlbuild.options.1
Fatal error: exception Invalid_argument("String.sub / Bytes.sub")
Called from unknown location
Called from unknown location
make: *** [GNUmakefile:859: man/ocamlbuild.options.1] Error 2
2) Difficulties with parallel software builds
A command like “ocamlc.opt -pack” will be called by a make rule.
It has got the property that three output files can be generated.
Such a detail causes recurring challenges for the safe application of
the involved software so far.
https://www.cmcrossroads.com/article/rules-multiple-outputs-gnu-make
https://lists.gnu.org/archive/html/help-make/2014-11/msg00013.html
3) The test scripts for this evolving tool will need related updates.
They were left over for further development considerations.
4) The selection of default values for a working build configuration could
eventually become more convenient and safer then.
Signed-off-by: Markus Elfring <[email protected]>
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The directory “tmp” is created by two recipes in the make script which is used so far.
I imagine that this approach can become insufficient in the use case that a software build would be attempted in parallel.
How do you think about the possibility to work with two temporary directories for the generation of the desired file variant “ocamlbuild_pack.cm[ox]”?
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