libunwind/libunwind-headers: use only on < darwin11 #27319
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If this is committed, there will be ports discovered that have linked to Some will have overtly had libunwind referenced in their dependencies. Other ports may likely have linked against it opportunistically. |
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the functionality of the libunwind library was added to libSystem in darwin11. Installing this port on any system newer than darwin10 causes problems, and usually causes an older libunwind to be used than the one already in libSystem. closes: https://trac.macports.org/ticket/66250 For interest: a current libunwind is currently installed as part of the clang builds, eg.: % port contents clang-19 | grep libunwind /opt/local/libexec/llvm-19/include/__libunwind_config.h /opt/local/libexec/llvm-19/include/libunwind.h /opt/local/libexec/llvm-19/include/libunwind.modulemap /opt/local/libexec/llvm-19/lib/libunwind/libunwind.1.0.dylib /opt/local/libexec/llvm-19/lib/libunwind/libunwind.1.dylib /opt/local/libexec/llvm-19/lib/libunwind/libunwind.a /opt/local/libexec/llvm-19/lib/libunwind/libunwind.dylib if testing a newer libunwind is desired on new systems, one can be found there.
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the functionality of the libunwind library was added to libSystem in darwin11. Installing this port on any system newer than darwin10 causes problems, and usually causes an older libunwind to be used than the one already in libSystem.
closes: https://trac.macports.org/ticket/66250
For interest:
a current libunwind is currently installed as part of the clang builds, eg.:
% port contents clang-19 | grep libunwind
/opt/local/libexec/llvm-19/include/__libunwind_config.h
/opt/local/libexec/llvm-19/include/libunwind.h
/opt/local/libexec/llvm-19/include/libunwind.modulemap
/opt/local/libexec/llvm-19/lib/libunwind/libunwind.1.0.dylib
/opt/local/libexec/llvm-19/lib/libunwind/libunwind.1.dylib
/opt/local/libexec/llvm-19/lib/libunwind/libunwind.a
/opt/local/libexec/llvm-19/lib/libunwind/libunwind.dylib
if testing a newer libunwind is desired on new systems, one can be found there.