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X-Bugzilla-Who: thierry@FreeBSD.org
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278711

            Bug ID: 278711
           Summary: math/sprng: BROKEN with recent clang
           Product: Base System
           Version: 15.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: thierry@FreeBSD.org

With recent clang on -CURRENT, SPRNG does not compile anymore:

c++ -DHAVE_CONFIG_H -I. -I..   -isystem /usr/local/include -I../include -I.=
 -O2
-pipe -fstack-protector-strong -isystem /usr/local/include -fno-strict-alia=
sing
 -isystem /usr/local/include  -Wno-deprecated -DLONG64=3Dlong -MT
wolff_tmp-wolff.o -MD -MP -MF .deps/wolff_tmp-wolff.Tpo -c -o wolff_tmp-wol=
ff.o
`test -f 'wolff.cpp' || echo './'`wolff.cpp
wolff.cpp:76:2: error: reference to 'stack' is ambiguous
   76 |         stack[++Ipt]=3DnnJ;
      |         ^
wolff.cpp:17:27: note: candidate found by name lookup is 'stack'
   17 | int lattice_size, *spin, *stack, nsites;
      |                           ^
/usr/include/c++/v1/stack:156:28: note: candidate found by name lookup is
'std::stack'
  156 | class _LIBCPP_TEMPLATE_VIS stack {
      |                            ^
wolff.cpp:81:4: error: reference to 'stack' is ambiguous
   81 |         i=3Dstack[Ipt];
      |           ^
wolff.cpp:17:27: note: candidate found by name lookup is 'stack'
   17 | int lattice_size, *spin, *stack, nsites;
      |                           ^
/usr/include/c++/v1/stack:156:28: note: candidate found by name lookup is
'std::stack'
  156 | class _LIBCPP_TEMPLATE_VIS stack {
      |                            ^
wolff.cpp:219:3: error: reference to 'stack' is ambiguous
  219 |   stack =3D static_cast<int *>(malloc(nsites*sizeof(int)));
      |   ^
wolff.cpp:17:27: note: candidate found by name lookup is 'stack'
   17 | int lattice_size, *spin, *stack, nsites;
      |                           ^
/usr/include/c++/v1/stack:156:28: note: candidate found by name lookup is
'std::stack'
  156 | class _LIBCPP_TEMPLATE_VIS stack {
      |                            ^
wolff.cpp:220:16: error: reference to 'stack' is ambiguous
  220 |   if(!spin || !stack)
      |                ^
wolff.cpp:17:27: note: candidate found by name lookup is 'stack'
   17 | int lattice_size, *spin, *stack, nsites;
      |                           ^
/usr/include/c++/v1/stack:156:28: note: candidate found by name lookup is
'std::stack'
  156 | class _LIBCPP_TEMPLATE_VIS stack {
      |                            ^
4 errors generated.

Full log available at
https://pkg-status.freebsd.org/beefy18/data/main-amd64-default/p3d9e1b95961=
0_sb07689d1f2a/logs/SPRNG-5.0_2.log

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