Experimental Physics and
Industrial Control System

Michael Davidsaver <[email protected]> · Mon, 11 Dec 2017 19:43:44 -0600

Ok, so appveyor finished chewing on this and I see three failures.

> ..\pv/pvType.h(38) : fatal error C1083: Cannot open include file: 'stdint.h': No such file or directory

The 9.0 (aka VS 2008) builds fail trying to include "stdint.h".  As this is the oldest
version I first ask the obvious question.  Should we just drop 9.0?

The others are cygwin problems...

> ../../src/misc/pv/anyscalar.h: In instantiation of 'epics::pvData::AnyScalar::AnyScalar(T) [with T = double]':
> ../../src/misc/pv/anyscalar.h:146:9:   required from 'epics::pvData::AnyScalar& epics::pvData::AnyScalar::operator=(T) [with T = double]'
> ../pv/pvData.h:502:11:   required from 'void epics::pvData::PVScalarValue<T>::getAs(epics::pvData::AnyScalar&) const [with T = double]'
> ../../src/pv/valueBuilder.cpp:295:2:   required from here
> /cygdrive/c/projects/epics-base-5e851/include/epicsAssert.h:48:29: error: static assertion failed: sizeof(TT)<=sizeof(_wrap.blob)
>  #define STATIC_ASSERT(expr) static_assert(expr, #expr)
>                              ^
> ../../src/misc/pv/anyscalar.h:96:9: note: in expansion of macro 'STATIC_ASSERT'
>          STATIC_ASSERT(sizeof(TT)<=sizeof(_wrap.blob));

2. This could only be failing if the c++11 implementation is used and "sizeof(double) > sizeof(std::string).
I'm curious to know how this can be true at all, and why only on cygwin x86.

FYI. I would like to use std::aligned_union here, but switched to std::aligned_storage for compatibility.
One of the gcc versions/variants (mingw I think) is missing aligned_union.

Anyway the fix is clear.

> /usr/lib/gcc/x86_64-pc-cygwin/6.4.0/libstdc++.a(cow-stdexcept.o): In function `std::logic_error::logic_error(std::logic_error const&)':
> /usr/src/debug/gcc-6.4.0-4/libstdc++-v3/src/c++11/cow-stdexcept.cc:59: multiple definition of `std::logic_error::logic_error(std::logic_error const&)'
> testBaseException.o:/usr/lib/gcc/x86_64-pc-cygwin/6.4.0/include/c++/stdexcept:113: first defined here

3. Maybe some inline-ing failure?  Someone with a local cygwin install will have to take the lead here.

On 12/11/2017 09:36 AM, Ralph Lange wrote:
> The builder for the epics-base project currently hangs. I have opened a support ticket for this; it seems to be a common issue and is always fixed very quickly.
> Until we're up again ... the build against my (identical) personal clone is progressing: https://ci.appveyor.com/project/ralphlange/epics-base-5e851
> 
> Cheers,
> ~Ralph
> 
> 
> On Mon, Dec 11, 2017 at 11:30 AM, Ralph Lange <[email protected] <mailto:[email protected]>> wrote:
> 
>     Due to popular demand,
>     I fixed the Appveyor builds for EPICS Base 7.0.1. You will find results for 48 different Windows builds soon at
>         https://ci.appveyor.com/project/epics-base/epics-base <https://ci.appveyor.com/project/epics-base/epics-base>
> 
>     Cheers,
>     ~Ralph
> 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System