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Add a note about C++ -> C with libstdc++

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llvm-svn: 29993
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Chris Lattner 2006-08-31 04:26:31 +00:00
parent 56d79475b7
commit f0e85f8600
1 changed files with 11 additions and 2 deletions
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docs/FAQ.html
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@ -541,8 +541,8 @@ C++ support for a processor that does not otherwise have a C++ compiler.
<p>or:</p>
<div class="doc_code">
llvm-g++ a.cpp -c
llvm-g++ b.cpp -c
llvm-g++ a.cpp -c<br>
llvm-g++ b.cpp -c<br>
llvm-g++ a.o b.o -o program
</div>
@ -566,6 +566,15 @@ If you want/need it for a certain program, you can enable it by passing
use setjmp/longjmp to implement exception support that is correct but
relatively slow.
</p>
<p>Also note: this specific sequence of commands won't work if you use a
function defined in the C++ runtime library (or any other C++ library). To
access an external C++ library, you must manually
compile libstdc++ to LLVM bytecode, statically link it into your program, then
use the commands above to convert the whole result into C code. Alternatively,
you can compile the libraries and your application into two different chunks
of C code and link them.</p>
</div>