Jenkins build is still unstable: FreeBSD_HEAD #564

[Ngie Cooper (yaneurabeya)]

> On Aug 29, 2016, at 11:20, Bryan Drewery <bdrewery at FreeBSD.org> wrote:

…

> Trust me, you're wasting your time, this is not the problem.  If it were
> then _nothing_ would compile from the /usr/bin/cc compiler.  It's only a
> problem with running the ATF tests which means it is likely storing the
> flags it is built with somewhere and reusing them.

Well, that was part of the problem, but it seems that clang is indeed caching -sysroot when running the _everything phase of buildworld. From https://jenkins.freebsd.org/job/FreeBSD_HEAD/571/consoleText :

 50585 --- AnalysisDeclContext.o ---
 50586 c++  -O2 -pipe -I/builds/workspace/FreeBSD_HEAD/src/lib/clang/libclanganalysis/../../../contrib/llvm/include -I/builds/workspace/FreeBSD_HEAD/src/lib/clang/libclanganalysis/../../../contrib/llvm/       tools/clang/include -I/builds/workspace/FreeBSD_HEAD/src/lib/clang/libclanganalysis/../../../contrib/llvm/tools/clang/lib/Analysis -I. -I/builds/workspace/FreeBSD_HEAD/src/lib/clang/libclanganaly       sis/../../../contrib/llvm/../../lib/clang/include -DLLVM_ON_UNIX -DLLVM_ON_FREEBSD -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -fno-strict-aliasing -DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknow       n-freebsd12.0\" -DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd12.0\" -DDEFAULT_SYSROOT=\"/builds/workspace/FreeBSD_HEAD/obj/builds/workspace/FreeBSD_HEAD/src/tmp\" -MD -MF.depend.AnalysisDeclContext       .o -MTAnalysisDeclContext.o -Qunused-arguments -I/builds/workspace/FreeBSD_HEAD/obj/builds/workspace/FreeBSD_HEAD/src/tmp/legacy/usr/include  -std=c++11 -fno-exceptions -fno-rtti -stdlib=libc++ -       Wno-c++11-extensions  -c /builds/workspace/FreeBSD_HEAD/src/lib/clang/libclanganalysis/../../../contrib/llvm/tools/clang/lib/Analysis/AnalysisDeclContext.cpp -o AnalysisDeclContext.o

The reason why “no one” has seen this probably is this is that is:

- not default (using an inaccessible ${WORLDTMP} from an install image; path isn’t standard).
- ^/stable/11 is still a fairly fresh branch and the number of people testing on ^/head is likely smaller than the ^/stable/... branches.

Thanks,
-Ngie
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