[Bug binutils/25057] New: Fails to build binutils-2.31.1 using clang-8.0.0

[wcohen at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25057

            Bug ID: 25057
           Summary: Fails to build binutils-2.31.1 using clang-8.0.0
           Product: binutils
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: wcohen at redhat dot com
  Target Milestone: ---

When attempting to build binutils-2.31.1 rpm on fedora 30 using the clang
compiler some of the code fails to build.  Steps to reproduce:

$ rpm -Uvh binutils-2.31.1.fc30.src.rpm
$ cd rpmbuild/SPECS
$ export CC=clang
$ export CXX=clang++
$ rpmbuild --define "%optflags -O2 -g -pipe  -Wp,-D_FORTIFY_SOURCE=2
-Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong
-grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
-fasynchronous-unwind-tables -fcf-protection" --define "%dist .fc30llvm" -bi
binutils.spec

It compiles a fair amount of code, but the build fails because of the following
errors:

x86_64.cc:1591:10: error: case value evaluates to 3221225473, which cannot be
narrowed to type 'int' [-Wc++11-narrowing]
    case elfcpp::GNU_PROPERTY_X86_ISA_1_NEEDED:
         ^
x86_64.cc:1592:10: error: case value evaluates to 3221225474, which cannot be
narrowed to type 'int' [-Wc++11-narrowing]
    case elfcpp::GNU_PROPERTY_X86_FEATURE_1_AND:
         ^

The definitions of these values set sign bit (0xc0000001 and 0xc0000002) and it
looks like clang doesn't like that.

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