[MacPorts] #59364: qt56-qtbase no longer builds on Lion

[MacPorts]

#59364: qt56-qtbase no longer builds on Lion
----------------------+--------------------
 Reporter:  lemzwerg  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:  lion      |       Port:  qt56
----------------------+--------------------
 [macports-ports c2832840a1d5babcb37a05d32d21396a3b3102bd]

 The configuring step fails.  The first error is

 {{{
 :info:configure /opt/local/var/macports/build/_opt_macports_macports-
 ports_aqua_qt56/qt56-qtbase/work/qtbase-opensource-
 src-5.6.3/include/QtCore/5.6.3/QtCore/private/../../../../../src/corelib/tools/qsimd_p.h:460:10:
 error: redefinition of '__bsrd' as different kind of symbol
 :info:configure unsigned _bit_scan_reverse(unsigned val)
 :info:configure          ^
 :info:configure
 /opt/local/libexec/llvm-9.0/lib/clang/9.0.0/include/ia32intrin.h:73:30:
 note: expanded from macro '_bit_scan_reverse'
 :info:configure #define _bit_scan_reverse(A) __bsrd((A))
 :info:configure                              ^
 :info:configure
 /opt/local/libexec/llvm-9.0/lib/clang/9.0.0/include/ia32intrin.h:47:1:
 note: previous definition is here
 :info:configure __bsrd(int __A) {
 :info:configure ^
 }}}

 Log file is attached.

-- 
Ticket URL: <https://trac.macports.org/ticket/59364>
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