[llvm-dev] compiler-rt fails to find <stdarg.h> on FreeBSD

[Brooks Davis via llvm-dev]

They clang std*.h headers are incompatible with FreeBSD's builtin ones
so FreeBSD users generally have to remove them (limits.h is also broken
in -ffreestating mode).

-- Brooks

On Tue, Dec 08, 2015 at 03:04:16PM -0800, Sean Silva via llvm-dev wrote:
> Clang provides stdarg.h as part of its builtin headers. Maybe that is what
> compiler-rt is expecting to find and somehow clang is not finding its
> builtin headers?
> 
> -- Sean Silva
> 
> On Tue, Dec 8, 2015 at 1:16 PM, Sean Bruno via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
> 
> > I'm unsure why this is failing this week, but when I build for FreeBSD
> > HEAD, I now get a failure to find <stdarg.h>.  Very strange.  Maybe its
> > missing a -I /usr/include somewhere?
> >
> >
> > [1950/2811] Building CXX object
> >
> > projects/compiler-rt/lib/tsan/CMakeFiles/clang_rt.tsan-x86_64.dir/rtl/tsan_interceptors.cc.o
> > FAILED: /usr/bin/CC   -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS
> > -D__STDC_LIMIT_MACROS -fPIC -fvisibility-inlines-hidden -Wall -W
> > -Wno-unused-parameter -Wwrite-strings -Wcast-qual
> > -Wmissing-field-initializers -pedantic -Wno-long-long
> > -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11
> > -fcolor-diagnostics -Wall -std=c++11 -g -Iprojects/compiler-rt/lib/tsan
> > -I/home/sbruno/clang/llvm/projects/compiler-rt/lib/tsan -Iinclude
> > -I/home/sbruno/clang/llvm/include -I/usr/local/include
> > -I/home/sbruno/clang/llvm/projects/compiler-rt/lib/tsan/..     -m64
> > -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables
> > -fno-stack-protector -fno-sanitize=safe-stack -fvisibility=hidden
> > -fvisibility-inlines-hidden -fno-function-sections -fno-lto -O3
> > -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions
> > -Wno-non-virtual-dtor -fPIE -fno-rtti -msse3 -Wframe-larger-than=512
> > -Wglobal-constructors --sysroot=. -MMD -MT
> >
> > projects/compiler-rt/lib/tsan/CMakeFiles/clang_rt.tsan-x86_64.dir/rtl/tsan_interceptors.cc.o
> > -MF
> >
> > projects/compiler-rt/lib/tsan/CMakeFiles/clang_rt.tsan-x86_64.dir/rtl/tsan_interceptors.cc.o.d
> > -o
> >
> > projects/compiler-rt/lib/tsan/CMakeFiles/clang_rt.tsan-x86_64.dir/rtl/tsan_interceptors.cc.o
> > -c
> >
> > /home/sbruno/clang/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc
> > In file included from
> >
> > /home/sbruno/clang/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:2367:
> >
> > /home/sbruno/clang/llvm/projects/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:41:10:
> > fatal error: 'stdarg.h' file not found
> > #include <stdarg.h>
> >          ^
> > 1 error generated.
> > [1950/2811] Building X86GenDAGISel.inc...
> > ninja: build stopped: subcommand failed.
> > _______________________________________________
> > LLVM Developers mailing list
> > llvm-dev at lists.llvm.org
> > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
> >

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