[CMake] CHECK_TYPE_SIZE works incorrectly with LDFLAGS="-Wl, --gc-sections"

[Arfrever Frehtes Taifersar Arahesis]

2008-08-05 00:01:51 Bill Hoffman napisał(a):
> Arfrever Frehtes Taifersar Arahesis wrote:
> > CHECK_TYPE_SIZE returns incorrect (empty) values of types sizes when
> > the LDFLAGS variable contains "-Wl,--gc-sections".
> >
> > This bug causes compilation failures in probably all packages which
> > use CHECK_TYPE_SIZE.
> >
> > I'm attaching 2 files which help to reproduce this bug.
> >
> > Steps to reproduce:
> > 1. Save the attachments to ${PROJECT_SOURCE_DIR}
> > 2. Run: export LDFLAGS="-Wl,--gc-sections"
> > 3. Run: cmake ${PROJECT_SOURCE_DIR}
> > 4. Read ${PROJECT_BINARY_DIR}/config.h
> >
> > I use CMake 2.6.0.
> >
>
> What is in the CMakeError.log?

CMakeFiles/CMakeError.log doesn't exist.

> Why is it failing?

Maybe CMake uses wrong way of checking type sizes which relies on
incorrect assumptions.
I wrote steps to reproduce this bug so you should be able to confirm it.

-- 
Arfrever Frehtes Taifersar Arahesis