Broken APREC Support

[HaoZeke]

Bug Report

• No similar issues exist
• Replicated on similar systems

Description

The make step fails if ARPREC is installed.

Configuration

 cmake .. -DBUILD_META_EXAMPLES=OFF                     
-- dir='/home/haozeke/Git/Github/machineLearning/shogun/src'
-- dir='/home/haozeke/Git/Github/machineLearning/shogun/build/src'
-- dir='/home/haozeke/Git/Github/machineLearning/shogun/src/gpl'
-- Using system's malloc
-- Could NOT find ViennaCL (missing: VIENNACL_INCLUDE_DIR VIENNACL_ENCODED_VERSION) (Required is at least version "1.5.0")
-- Could NOT find TFLogger (missing: TFLogger_DIR)
-- Could NOT find CPLEX (missing: CPLEX_LIBRARY CPLEX_INCLUDE_DIR) 
-- Found Arpack : /usr/lib/libarpack.so
-- Could NOT find MOSEK (missing: MOSEK_DIR MOSEK_INCLUDE_DIR MOSEK_LIBRARY MOSEK_LIBRARIES) 
-- HDF5: Using hdf5 compiler wrapper to determine C configuration
-- Lzo Library /usr/lib/liblzo2.so
-- Lzo Include Found in /usr/include
-- Could NOT find LPSOLVE (missing: LPSOLVE_LIBRARIES LPSOLVE_INCLUDE_DIR) 
-- Could NOT find ColPack (missing: COLPACK_LIBRARIES COLPACK_LIBRARY_DIR COLPACK_INCLUDE_DIR) 
-- Linker: GNU gold
-- ===================================================================================================================
-- Summary of Configuration Variables
-- The following OPTIONAL packages have been found:

 * CCache
 * GDB
 * Doxygen (required version >= 1.8.6)
 * OpenMP
 * CxaDemangle
 * rxcpp
 * BLAS
 * GLPK
 * ARPACK
 * Threads
 * Protobuf
 * JSON (required version >= 0.11)
 * LibXml2
 * HDF5
 * CURL
 * ZLIB
 * BZip2
 * LibLZMA
 * SNAPPY
 * LZO
 * NLopt
 * ARPREC
 * Sphinx
 * Pandoc

-- The following REQUIRED packages have been found:

 * PythonInterp

-- The following OPTIONAL packages have not been found:

 * ViennaCL (required version >= 1.5.0)
 * TFLogger (required version >= 0.1.0)
 * CPLEX
 * Mosek
 * LpSolve
 * ColPack

-- ===================================================================================================================
-- Integrations
--   OpenCV Integration is OFF 	 enable with -DOpenCV=ON
-- ===================================================================================================================
-- Interfaces
--   Python is OFF 		 enable with -DINTERFACE_PYTHON=ON
--   Octave is OFF 		 enable with -DINTERFACE_OCTAVE=ON
--   Java is OFF 		 enable with -DINTERFACE_JAVA=ON
--   Perl is OFF 		 enable with -DINTERFACE_PERL=ON
--   Ruby is OFF 		 enable with -DINTERFACE_RUBY=ON
--   C# is OFF 			 enable with -DINTERFACE_CSHARP=ON
--   R is OFF 			 enable with -DINTERFACE_R=ON
--   Lua is OFF 		 enable with -DINTERFACE_LUA=ON
--   Scala is OFF 		 enable with -DINTERFACE_SCALA=ON
--   CoreML is OFF 		 enable with -DINTERFACE_COREML=ON
-- ===================================================================================================================
-- To compile shogun type
--   make
-- 
-- To install shogun to /usr/local type
--   make install
-- 
-- or to install to a custom directory
--   make install DESTDIR=/my/special/path
--   (or rerun cmake with -DCMAKE_INSTALL_PREFIX=/my/special/path) to just change the prefix
-- ===================================================================================================================
-- Configuring done
-- Generating done
-- Build files have been written to: /home/haozeke/Git/Github/machineLearning/shogun/build

Where examples are turned off due to #4419.

Error

Scanning dependencies of target libshogun
[ 74%] Building CXX object src/shogun/CMakeFiles/libshogun.dir/base/class_list.cpp.o
[ 74%] Built target libshogun
[ 74%] Linking CXX shared library libshogun.so
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(add.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(complex.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(cpr.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(cssx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(div.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(divd.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(divx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(dmc.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(eq.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(expx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(init.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp6old_cwE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(init.o): requires dynamic R_X86_64_PC32 reloc against '_ZTTSt14basic_ifstreamIcSt11char_traitsIcEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(init.o): requires dynamic R_X86_64_PC32 reloc against '_ZN7mp_real3_piE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(inix.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp5mpuu1E' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(log.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(log.o): requires dynamic R_X86_64_PC32 reloc against '_ZNKSt5ctypeIcE8do_widenEc' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(logx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(mdc.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(mul.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(muld.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(mulx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(nint.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp10prec_wordsE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(norm.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(npwx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(pix.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(roun.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(sqrt.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(sqrtx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(sqx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(sub.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(binary_io.o): requires dynamic R_X86_64_PC32 reloc against '_ZSt4cerr' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(write.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVSt9basic_iosIcSt11char_traitsIcEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(write.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVSt15basic_streambufIcSt11char_traitsIcEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(write.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVSt15basic_streambufIcSt11char_traitsIcEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(write.o): requires dynamic R_X86_64_PC32 reloc against '_ZTV17fixed_col_ostreamIcSt11char_traitsIcEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(write.o): requires dynamic R_X86_64_PC32 reloc against '_ZTV17fixed_col_ostreamIcSt11char_traitsIcEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(write.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt7__cxx1115basic_stringbufIcSt11char_traitsIcESaIcEEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(write.o): requires dynamic R_X86_64_PC32 reloc against '_ZTTNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(write.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt7__cxx1115basic_stringbufIcSt11char_traitsIcESaIcEEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(mp_real.o): requires dynamic R_X86_64_PC32 reloc against '_ZSt4cerr' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(debug.o): requires dynamic R_X86_64_PC32 reloc against '_ZSt4cerr' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(dble.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp5mprdxE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(agmx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(angx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(cshx.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(cssn.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(exp.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(infr.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(lconv.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp6mpmcrxE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(npwr.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp10prec_wordsE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(pi.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(rand.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(to_digits.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp5mpbdxE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(read.o): requires dynamic R_X86_64_PC32 reloc against '_ZTTNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(read.o): requires dynamic R_X86_64_PC32 reloc against '_ZTTNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(construct.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVSt9basic_iosIcSt11char_traitsIcEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(construct.o): requires dynamic R_X86_64_PC32 reloc against '_ZTTNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(ang.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp8error_noE' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(fftcr.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp5mpuu1E' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(fftrc.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp5mpuu1E' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(fft1.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp5mpuu2E' which may overflow at runtime; recompile with -fPIC
/usr/bin/ld.gold: error: /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/libarprec.a(fft3.o): requires dynamic R_X86_64_PC32 reloc against '_ZN2mp6mpnrowE' which may overflow at runtime; recompile with -fPIC
collect2: error: ld returned 1 exit status
make[2]: *** [src/shogun/CMakeFiles/shogun.dir/build.make:1475: src/shogun/libshogun.so.18.0] Error 1
make[1]: *** [CMakeFiles/Makefile2:102: src/shogun/CMakeFiles/shogun.dir/all] Error 2
make: *** [Makefile:152: all] Error 2

The make step works if ARPREC is uninstalled.

System Details

Architecture and OS

Shogun

Git version at:

 * b5345f577 (HEAD -> develop, origin/develop, origin/HEAD) SG_ADD refactor (#4417)

ARPREC

From the ArchLinux AUR:

[karlnapf]

Thanks for the report. This should have been fixed a while ago so I dont understand why this appears. We dont have a test build for archlinux though
Do you desperately need ARPREC? That is only used by a few modules within shogun ...

[HaoZeke]

I don't actually need ARPREC, so I can make do without it when #4419 works out..

On a side note, would a pull request adding an ArchLinux setup to the CI system be useful?

I can also provide more debugging information if required..

[karlnapf]

Thanks for the offer, I think long term maintenance of such a build would be most useful. @vigsterkr I'll leave replying to you.

As for the example problem. You could try turning them off using -DBUILD_META_EXAMPLES=Off, or, if you just want to disable the cpp meta examples -DTRAVIS_DISABLE_META_CPP=Off

[HaoZeke]

Sure I'd love to maintain one..

Currently I have moved on to Shark but I will switch back if I don't get the eigen errors in my code.

[ChrisTX]

The Arch AUR package only builds the static ARPREC library, and that without PIC. As of such, it cannot be linked into libshogun.so, as that would require PIC. I've contacted the AUR maintainer with a fixed version of the package, that would enroll ARPREC as a shared library, which is how it should be on Arch.

With the fixed version of the package, I've been able to compile shogun with ARPREC support.

[karlnapf]

That is great news. Patches would be very welcome here!
Let us know if you need any help

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue is now being closed due to a lack of activity. Feel free to reopen it.