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conftest files

From: Christopher Hulbert
Subject: conftest files
Date: Fri, 11 Aug 2006 08:52:00 -0400

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?


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