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iMike
Apprentice
Joined: 01 Apr 2005
Posts: 204
Location: Stockholm, Sweden
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 Posted: Mon Feb 04, 2013 7:31 am Post subject: |
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| On my coppermine PIII, I was able to compile gcc-4.6.3 with "-march=i686 -O2 -pipe" then after that compiled successfully, I had it recompile itself again with "-march=native". After that, I added it back to a distcc build farm with the original CFLAGS it was using "-march=pentium3 -O2 -pipe -fomit-frame-pointer". Thanks for pointing out the bug and workaround. |
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depontius
Advocate
Joined: 05 May 2004
Posts: 2156
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| Posted: Mon Feb 04, 2013 1:24 pm Post subject: |
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I never was able to get back to "-march=pentium3" with gcc-4.6.3, but I'm just as happy to be working with "-march=native".
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ffdjm
n00b
Joined: 28 Mar 2004
Posts: 13
Location: Fairbanks, Alaska
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| Posted: Fri Apr 19, 2013 3:30 am Post subject: |
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My computer is a Celeron D 478 pin. Gcc-4.6.3 after many failures compiled when I changed -march=pentium3 to -march=native.
CFLAGS="-O2 -march=native -fomit-frame-pointer"
USE="cxx fortran gtk mudflap nls nptl openmp (-altivec) -doc (-fixed-point) -gcj -graphite (-hardened) (-libssp) (-multilib) -multislot -nopie -nossp -objc -objc++ -objc-gc -test -vanilla"
Douglas |
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PatomaS
Tux's lil' helper
Joined: 09 Feb 2006
Posts: 93
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| Posted: Tue May 21, 2013 1:39 am Post subject: fail for --emptytree and solution |
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Hi
I was doing an emerge --emptytree and gcc-4.6.3 failed with the "emake failed with bootstrap-lean" message, but after a few changes, I got it to reemerge fine. I have to say that if it was installed fine before, and I have not made any big changes, it should have been reemerged without problems.
This are the changes I made
- ( make.conf ) MAKEOPTS="-j8" --> MAKEOPTS="-j4"
- ( package.use ) sys-devel/gcc gcj --> sys-devel/gcc -fortran gcj
Some information about my system
- CFLAGS="-march=core2 -mtune=generic -O2 -pipe"
- CHOST="x86_64-pc-linux-gnu"
- 8Gb RAM ( gcc emerge never used more than 1.5 )
- core i5 2500k
At the time I installed this system core2 was the recommendation for my processor, I'll be changing to -march=native, I'll report the changes when they are done in case that helps anybody with the same problem.
Update:
I made this changes and it emerged fine again
- CFLAGS="-march=native -O2 -pipe"
- MAKEOPTS="-j8"
- sys-devel/gcc -fortran -gcj
Bye
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