Re: conftest files

[Christopher Hulbert]

On 8/11/06, Albert Chin <address@hidden> wrote:
> On Fri, Aug 11, 2006 at 08:52:00AM -0400, Christopher Hulbert wrote:
> > I have a problem when compiling with intraprocedural analysis flags
> > (currently with the PGI compilers, I haven't checked other IPA/IPO
> > capable compilers) where after testing for a library with AC_TRY_LINK,
> > I test for another library. The first library was compiled with IPA
> > information, so the PGI compiler creates some updated IPA information
> > for the conftest. When testing for the next library compiled without
> > IPA information, it doesn't overwrite the original IPA file and gets
> > an undefined symbol resulting from the first library.
> >
> > So, to boil that confusion down, is there any way (other than issuing
> > an explicit rm -f *conftest* in my autoconf function) to make sure all
> > conftest files are deleted?
>
> Presumably, the IPA information is stored in the directory of the
> test. Why not create a shell script that wraps the compiler executable
> that removes these temporary files? Then, rebuild with:
>   ./configure CC=<path to IPA-compiler wrapper> ...

I guess because the only place I see it useful is in the configure
when testing libraries. It would also exhibit a problem to end-users
that would require them to read a readme file and follow the
instructions :)!  Anyways, I put "rm -f *conftest*" at the end of my
autoconf macro definition and it seems to work fine on linux. I guess
I'll deal with other platforms as they exhibit problems. I was just
wondering if there was a more "portable"  way of making sure that all
test files were removed.

> --
> albert chin (address@hidden)