Something is very wrong in this box of mine.
Using 5.8 Standard, I don't seem to be able to compile anything.
I've tried with 3 different applications, and during ./configure I get the following error:
configure: error: C preprocessor "/lib/cpp" fails sanity check
This includes applications that I've successfully compiled before (the same versions).
So, I must have broken something. I've been more or less careful with my upgrades, although a major one has been a kernel upgrade to 2.6.21-ck2 (that actually went a bit wrong at some points).