On 15/04/2018 09:25, Pierre Labastie wrote: > On 14/04/2018 23:50, Ken Moffat wrote: >> On Sat, Apr 14, 2018 at 10:26:22PM +0200, Pierre Labastie wrote: >>> >>>>> >>>>> Do we need to adjust the book's instructions? >>>>> >>>> >>>> I'd say not before understanding what is going on... Let me try building >>>> rust >>>> with the new instructions, after installing llvm 6, and removing completely >>>> llvm 5 (using porg). >>>> >>> >>> And then... Another error on my side: >>> --------- >>> [...] >>> cargo:rustc-link-search=native=/sources/rust/rustc-1.25.0-src/build/x86_64-unkno >>> wn-linux-gnu/stage0-rustc/x86_64-unknown-linux-gnu/release/build/rustc_llvm-7878 >>> f9d37a1306fb/out >>> >>> --- stderr >>> llvm-config: error: missing: /usr/lib/libLLVMDemangle.so >>> llvm-config: error: missing: /usr/lib/libLLVMSupport.so >> [...] >>> [... fifty so lines like that ...] >>> llvm-config: error: missing: /usr/lib/libLLVMX86AsmParser.so >>> llvm-config: error: missing: /usr/lib/libLLVMX86Disassembler.so >>> thread 'main' panicked at 'command did not execute successfully: >>> "/usr/bin/llvm-config" "--link-shared" "--libs" "--system-libs" "asmparser" >>> "bitreader" "bitwriter" "instrumentation" "interpreter" "ipo" "linker" "lto" >>> "mcjit" "x86" >>> --------------- >>> And indeed, running the command: >>> --------------- >>> $ llvm-config --link-shared --libs >>> --------------- >>> returns the same list of errors as above, while >>> --------------- >>> $ llvm-config --libs >>> --------------- >>> returns a bunch of static libraries without errors. >>> >>> I think there is a switch for building shared libraries in llvm. The book >>> was >>> using it at a time, but there were problems with mesa IIRC. >>> >>> The switch is -DBUILD_SHARED_LIBS=ON, and the documentation still says: >>> ``BUILD_SHARED_LIBS is only recommended for use by LLVM developers. If you >>> want to build LLVM as a shared library, you should use the >>> LLVM_BUILD_LLVM_DYLIB option.'' >>> >>> The book uses the LLVM_BUILD_LLVM_DYLIB option. >>> >> Indeed it does, but I see that I also use -DLLVM_LINK_LLVM_DYLIB=ON. >> I assume that might have been in the book at some time, but it's >> what I've been using without obvious problems. > > I'll try -DLLVM_LINK_LLVM_DYLIB=ON soon
Done, and it built. Ken, don't you think the instructions should wipe out /sources/RUST after installing? Pierre -- http://lists.linuxfromscratch.org/listinfo/blfs-dev FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
