Compiler flags and memory usage

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Hi all.

Recently, I encountered some problems with the compilation of various
applications/libraries [1] from SeqAn project [2] of biological interest.

These compilations have been particularly annoying because it was
nearly impossible to compile on my PC without blocks dependent by
hardly memory usage.
Most RPM builds were done on Copr and Koji even if it seems impossible
to work with all default compiler flags requested in Fedora packaging
guidelines.

To pass these problems, I had to decrease '-O' optimization flag
gradually to '-O1' or '-O0', latest attempt is the removal of '-pipe'
from RPM_OPT_FLAGS.

What's best choice in these cases?
Which flags should never be removed/changed?

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1105730
[2] http://www.seqan.de/


Regards.

- -- 
Antonio Trande

mailto: sagitterATfedoraproject.org
http://www.fedoraos.worpress.com
https://fedoraproject.org/wiki/User:Sagitter
GPG Key: D400D6C4
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