Default CFLAGS in gcc when none are specified?

amiga32 · 10-21-2010, 12:00 AM

Hi,

I have kind of a weird question. All Slackbuilds use -march=i486 -mtune=i686 -O2 to pass to gcc for standard building. What does gcc use by default if none are specified. Say for instance I just did ./configure && make && make install without specifying -march.

Aquarius_Girl · 10-21-2010, 12:57 AM

Does this help ?
http://old.nabble.com/GCC-default-op...d28682743.html

rfernandez · 10-21-2010, 01:08 AM

Very nice, I liked this a lot.

Aquarius_Girl · 10-21-2010, 01:14 AM

Well, thanks, I am happy I could help someone !

ponce · 10-21-2010, 01:28 AM

thanks also from me, learned a new, very informative, thing

Aquarius_Girl · 10-21-2010, 01:41 AM

Welcome ponce, Wow, I am proving to be helpful here

This thread should have been placed in the programming section instead ! I could see it only through the zero reply thread page.

XavierP · 10-22-2010, 05:07 AM

Moved to Programming

Sergei Steshenko · 10-22-2010, 05:41 AM

Tangentially related:

gcc -print-search-dirs
gcc -dumpspecs
.