Thanks, that command helped indeed. Also tried your git, got this error after make:
But the sourcecode i downloaded earlier compiles fine, getting around 50 kHash per core on an i7 930.

Many people (including me) can only mine on Intensity 10 anymore.
edit: Oh you tried 10 already. Maybe play around with the lookup gap and thread concurrency values. 

eule@Debian-70-wheezy-64-LAMP:~/cpuminer-2.3.2-quarkcoin-src-dist$ ./autogen.sh
bash: ./autogen.sh: Permission denied
eule@Debian-70-wheezy-64-LAMP:~/cpuminer-2.3.2-quarkcoin-src-dist$ ./configure CFLAGS="-O3"
bash: ./configure: No such file or directory

Can't execute autogen.sh even as root. Since there's no configure file i guess autogen must be run first.  

Amazing work btw. 

There was a similar high bounty for making Coin Control compatible with Yacoin.

Hmm i never found it hard to explain Bitcoin or Primecoin to my friends.
Bitcoin: PCs calculate on a hard puzzle until one of them solves it and gets 25 Bitcoins as reward, that's when the next puzzle begins.

Primecoin: Bitcoin's puzzle is basically trash, as the data it generates only contains useless hashes, wasting lots of energy on these useless calculations. Primecoin's puzzle generates primechains, which some say is useful for cryptography aswell as for research about prime distribution. So while it's not yet clear if the primechains have a real scientific value (although many math pros say yes), they are at least a lot more useful than bitcoin's seemingly random hashes.

AQkqNi3LnvookY8FRrEvZ58HEUR8cFzbRm

Blockrate went down a lot for me, seems some big players made the switch from Primecoin.

Windmaster and mikaelh both said they see no reason why the GPU miner should not continue to work.

Nope, my 5770 is happily hashing @ 12.25kH. Try intensity 10 (or maybe even lower) and play around with thread concurrency.

OP forgot to mention that the block rate and moneysupply are rather stable due to the block reward varying with difficulty.
http://cryptometer.org/primecoin_90_day_charts.html
If anything, then higher (mining) demand increases supply and lower (mining) demand decreases it due to the diff algo not retargeting instantly.

At cryptsy it was @ 0.03 btc, now 0.01. https://www.cryptsy.com/markets/view/73

Sold 260 for 0.35 btc... Who would've thought?

I remember mikaelh saying: L1 cache > cores
Too lazy to search the post.  

Safe mode should work then.

2 gigs 
No worries, the card has some problems anyways (have to turn the core down to 800 in 3D games or the driver crashes, mining at 850 and higher is fine though) and made ROI at least five times. Still think i should build a rig with 5 used 5770 for 300€.

Interestingly cgminer won't start at TC 10240, but raising it to 8000 indeed solved my HW errors issue.   edit: nope just a bit less A:3 HW:2, playing with TC now.
Had it at 5120 before, after the last n change the card didn't accept many TC values at all.
edit: 8096 and 8192 seem to be good.

Well my 5770 gets 12.25Kh (half a 7970!  ), A:15 HW: 87 after 10 minutes, seems like the HW errors can be ignored for now (at least at I 10).

So no one's GPU is working? Did you try Intensity 10 (only way my card worked after last n change)?
Maybe HW errors can be ignored since the miner still delivers accepted shares. (A2 HW 8 this try)

Even on intensity 10 my 5770 gets lots of HW errors (A 1, HW 20).  
Guess I'm not alone, the hash rate at my p2pool node is a quarter of what it was before the n change, probably only CPUs are left. 

works here 

buy a powered usb hub already!

We not only need a pool, but also a miner.