Problem building with b2 on MacOS Catalina with Homebrew

Robert P. Goldman — Fri, 25 Jun 2021 21:17:09 -0000

I have cloned the repo, and installed boost and boost-build using Homebrew on the Mac. I copied the configuration files as instructed, but I am getting this error with b2 release:

~/src/owlcpp $ b2 release
/usr/local/Cellar/boost-build/1.76.0/share/boost-build/src/build/project.jam:259: in find-jamfile from module project
error: Unable to load Jamfile.
error: Could not find a Jamfile in directory '/usr/local/Cellar/boost/1.76.0'.
error: Attempted to find it with pattern '[Bb]uild.jam [Jj]amfile.v2 [Jj]amfile [Jj]amfile. [Jj]amfile.jam'.
error: Please consult the documentation at 'http://www.boost.org'.
/usr/local/Cellar/boost-build/1.76.0/share/boost-build/src/build/project.jam:322: in load-jamfile from module project
/usr/local/Cellar/boost-build/1.76.0/share/boost-build/src/build/project.jam:64: in load from module project
/usr/local/Cellar/boost-build/1.76.0/share/boost-build/src/build/project.jam:89: in load-used-projects from module project
/usr/local/Cellar/boost-build/1.76.0/share/boost-build/src/build/project.jam:75: in load from module project
/usr/local/Cellar/boost-build/1.76.0/share/boost-build/src/build/project.jam:142: in project.find from module project
/usr/local/Cellar/boost-build/1.76.0/share/boost-build/src/build-system.jam:618: in load from module build-system
/usr/local/Cellar/boost-build/1.76.0/share/boost-build/src/kernel/modules.jam:295: in import from module modules
/usr/local/Cellar/boost-build/1.76.0/share/boost-build/src/kernel/bootstrap.jam:139: in boost-build from module
/Users/rpg/src/boost-build.jam:12: in module scope from module

As far as I can tell, b2 seems not to be satisfied with having the boost libraries pre-built -- it also wants their jamfiles. These don't seem to be distributed with the pre-built boost library as supplied by Homebrew. Shouldn't owlcpp be able to build itself without having to build the boost libraries, as well?

Directory of BOOST_BUILD_PATH

Rodrigo B — Wed, 09 Jun 2021 14:59:05 -0000

I intend to work with owlcpp and in the installation process I need to install Boost. I am working on the version of ubuntu 18.04.

When I try to run the example for testing:

b2 release

I have this error:

'boost-build /usr/include/boost ;'

but we were unable to find "bootstrap.jam" in the specified directory
or in BOOST_BUILD_PATH (searching /usr/include/boost, /usr/share/boost-build).

When I install or Boost generated header file is in /usr/local/lib/boost/include, and the binary library file is in /usr/local/lib/boost/lib

I checked the installation and everything is fine.

License question

Bob Calco — Tue, 25 Sep 2018 16:56:48 -0000

owl-cpp uses FaCT++ with the Boost license, but the FaCT++ project is GNU 2 software. My company is interested in using (and contributing) open source software so long as it isn't viral, but it would seem that use of FaCT++ would make all software that uses it subject to the GNU 2 license.

Am I wrong that owl-cpp's dependency on FaCT++ code makes it "viral" in the sense intended by the FSF's GNU license terms?

Last versions of FaCT++ are not supported

Eugene — Thu, 09 Aug 2018 22:56:28 -0000

Dear Mikhail! Thanks for taking care of this project! This is to report, that the last versions of FaCT++ (e.g. 1.7.0, see https://bitbucket.org/dtsarkov/factplusplus) have slightly changed folder layout, so compilation fails.

FaCT++ queries

Yves Teissier — Wed, 08 Nov 2017 10:26:10 -0000

Hi all,

I'm trying to get inferred equivalence for classes with FaCT++.
I guess I have to use the following method : "get_sub_super" ?
Anyone have an example of this method usage ? Especially for the firt parameter (Predicate).

Best regards,
Yves

assertion of individuals, object- and data properties

Yves Teissier — Thu, 05 Oct 2017 12:20:43 -0000

Hi Mikhail,

Are there example of usage of FaCT++ for inferred triple retreiving ?
I saw the Kernel class. But I don't know exactly how to retreive inferred triple after ontology submission.
My ontology is consistent and all classes are satisfiables. FaCT++ have generated some axioms.

Best regards,
Yves

libowlcpp_logic.so : undefined reference to « vtable for TIndividual »

Yves Teissier — Wed, 27 Sep 2017 08:31:34 -0000

Hi,

I'm trying to build an application using OWPCPP and the FaCT++ reasoner.
During the link step I have the following error :

libowlcpp_logic.so : undefined reference to « vtable for TIndividual »

I suspect the Save and Load method to not be implemented.

I'm trying to find an example of application using owpcpp and fact++ by without success.

Anyone have an idea ?

BR,
Yves Teissier

owl_cpp build error: Raptor

sounak dey — Wed, 20 Sep 2017 07:31:26 -0000

Hello,
I was trying to build owlcpp in Ubuntu 14.04 with Boost version 1.65.1, Raptor library 2-2.0.15, libxml library version 2-2.9.0, Fact++ library version 1.6.3. When I fire the command "b2 release" from owlcpp library then I get the following error:

/home/sounak/OWL_CPP/boost_1_65_1/tools/build/src/build/toolset.jam:44: in toolset.using
ERROR: rule "ext/raptor.init" unknown in module "toolset".
/home/nei-admin/OWL_CPP/boost_1_65_1/tools/build/src/build/project.jam:1053: in using
external/jamfile.jam:15: in modules.load

I have tried with one older Raptor library version 2-2.0.8 but with same result.
Also the result is same if I fire the command: "b2 release owlcpp-py".

Is this a problem of path or library version ? I however have not tried with other older versions of Boost library. To me it seems that details about Raptor library is not being captured properly by "toolset-module".
Please suggest a solution.

release version crashes

j mathews — Tue, 29 Aug 2017 02:55:07 -0000

After a lot of version issues with the various dependencies, the compilation and linking succeeds. I try one of the example programs, "validate.cpp", and I get a segmentation fault. I want to debug, so I re-compile using the debug option, "b2 debug". But the debug version doesn't seg fault! It works fine!

Intrigued, I use gdb on the release version anyway (lack of "debugging symbols" notwithstanding). Here is the backtrace, for your information:

Reading symbols from validate...(no debugging symbols found)...done.
(gdb) r og_02.owl 
Starting program: /home/jm/owl-cpp-code/out/apps/gcc-4.9.3/release/link-static/validate og_02.owl

Program received signal SIGSEGV, Segmentation fault.
0x0000000000438b32 in owlcpp::Crtpb_ns_node_iri<owlcpp::detail::Triple_store_temp>::insert_node_iri(std::string const&) ()
(gdb) bt
#0  0x0000000000438b32 in owlcpp::Crtpb_ns_node_iri<owlcpp::detail::Triple_store_temp>::insert_node_iri(std::string const&) ()
#1  0x00000000004393cf in owlcpp::detail::Raptor_to_store::insert_node(raptor_term const&) ()
#2  0x00000000004397c4 in void owlcpp::Raptor_wrapper::handle_statement<owlcpp::detail::Raptor_to_store>(void*, void const*) ()
#3  0x000000000045d0cb in raptor_rdfxml_generate_statement ()
#4  0x000000000045ddcc in raptor_rdfxml_end_element_handler ()
#5  0x0000000000460c36 in raptor_sax2_end_element ()
#6  0x0000000000485bbd in xmlParseEndTag1 ()
#7  0x0000000000491d02 in xmlParseTryOrFinish ()
#8  0x00000000004930be in xmlParseChunk ()
#9  0x00000000004603d0 in raptor_sax2_parse_chunk ()
#10 0x000000000045cb1b in raptor_rdfxml_parse_chunk ()
#11 0x0000000000448a19 in owlcpp::Raptor_wrapper::parse(std::istream&) ()
#12 0x0000000000421b15 in owlcpp::load(std::istream&, owlcpp::Triple_store&, std::string const&, owlcpp::Check_id const&) ()
#13 0x0000000000421d53 in owlcpp::load_file(boost::filesystem::path const&, owlcpp::Triple_store&, owlcpp::Check_id const&) ()
#14 0x000000000040959a in main ()

Triple extraction with sujet = _:Doc-

M Levin — Mon, 26 Jun 2017 01:19:59 -0000

It does not find your subject and returns a null pointer.
You are looking for a blank node, right? Have you tried using tripple_store.find_blank(n, did)?

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