[llvm-bugs] [Bug 42369] New: llvm - 7.0 and llvm 8.0 specify binutils version using flag

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Jun 24 04:59:13 PDT 2019


            Bug ID: 42369
           Summary: llvm - 7.0 and llvm 8.0 specify binutils version using
           Product: new-bugs
           Version: 8.0
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: abinaya.manikandan at wipro.com
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org


We have been trying to build llvm 7 and 8 on RedHat 7 machine.

Would like to use specific binutils version other than the OS one.

So please let us know do we have any specific flag/option which we can use with
the build steps of llvm to specify binutils installed path [library] so  llvm
can use those binutils to build.

FYI , below are the steps we are using from our end to build llvm:

mkdir build
pushd build
export CLANG_GCC=/opt/gcc/x86_64/8.3.0a/bin/gcc

cmake  -DCMAKE_INSTALL_PREFIX=%{_prefix} \
       -DGCC_INSTALL_PREFIX=/opt/gcc/x86_64/8.3.0a/  \
       -DCMAKE_CXX_LINK_FLAGS="-L/opt/gcc/x86_64/8.3.0a/lib64" \
       -DCMAKE_INSTALL_RPATH=$ORIGIN/../lib:%{gccpath}/lib64 \
       -DLLVM_EXTERNAL_CLANG_SOURCE_DIR=../../cfe-%{version0}.src \
-Wno-dev  --enable-zlib -DCMAKE_BUILD_TYPE=Release --enable-gold
--enable-plugins -DLLVM_ENABLE_ZLIB:BOOL=ON ..

make -j10 install DESTDIR="${RPM_BUILD_ROOT}"


It would be great if anyone help us here.

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