On 08/07/2012 10:40 AM, John Smith wrote:
It's not clang/clang++ that is executed here: it's the
ccc-analyzer/c++-analyzer. It sits in front of the compiler you use,
which is still GCC in this case. After ccc-analyzer/c++-analyzer is
done with the analysis, it passes all parameters and arguments to the
actual compiler (GCC), which then proceeds to compile the code as
usual. Im guessing your fix is trying to detect which compiler is
used, and thats still (as it is intended) GCC, but doesnt notice the
analyzer sitting in front of it (again, as intended) . Since none of
the llvm/clang parts support the __float128 type, the error is still
produced by ccc-analyzer/c++-analyzer.
If you can try 'scan-build ./configure && scan-build make' on the
LibreOffice code, you should be able to reproduce it.
So you should probably change that to just "scan-build make" (as LO's
default make target automatically calls ./autogen.sh, which in turn
calls ./configure, as necessary), which would hopefully lead to LO's
./configure seeing a CXX that is the actual scan-build "fake compiler,"
which would in turn hopefully lead to the detection that -std=gnu++11
does not work kicking in (as at least the static analyzer part of the
fake compiler would fail on #include <vector>, even if the gcc part
succeeded).
Stephan
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