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IDProjectCategoryView StatusDate SubmittedLast Update
0007595OCamlruntime system and C interfacepublic2017-07-21 20:342017-07-21 22:14
Reporterolh 
Assigned To 
PrioritynormalSeverityfeatureReproducibilityN/A
StatusnewResolutionopen 
PlatformLinuxOSTumbleweedOS Versionrolling
Product Version4.03.0 
Target VersionFixed in Version 
Summary0007595: pic version of libasmrun not used
DescriptionAs a followup to a discussion on the caml-list@inria.fr on 2017-05-31 I was asked to enter this feature request:

openSUSE Tumbleweed switched to gcc7, with the result that most ocaml related packages fail to build. The reason is that libasmrun.a instead of libasmrun_pic.a is used during linking:


ocamlfind ocamlopt unix.cmxa -I /usr/lib64/ocaml/ocamlbuild /usr/lib64/ocaml/ocamlbuild/ocamlbuildlib.cmxa -linkpkg myocamlbuild.ml /usr/lib64/ocaml/ocamlbuild/ocamlbuild.cmx -o myocamlbuild

/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /usr/lib64/ocaml/libasmrun.a(startup_aux.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC

Per the discussion there is apparently a knob 'runtime_variant(_pic)' for ocamlbuild. To my understanding this would need to be done for each package.

The workaround is to replace %{_libdir}/ocaml/libasmrun.a with libasmrun_pic.a to have this system-wide fixed.

It would be nice if there is a configure option to automatically select the "_pic" variant, unless otherwise specified by the project/package.
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Date Modified Username Field Change
2017-07-21 20:34 olh New Issue


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