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Old 2018-04-30, 07:31   #12
MisterBitcoin
 
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Once again failture.
Pure ECM works, so I believe there must be an linking error. Yafu searches for ECM, but it is unable to find it.

I put the correct path into yafu.ini, somehow it won´t work. You can find the ini earlier in this post.

If someone wants to take a look into the server, feel free to ask. I´ll give you VNC access.
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Old 2018-04-30, 14:50   #13
EdH
 
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Quote:
Originally Posted by MisterBitcoin View Post
Once again failture.
Pure ECM works, so I believe there must be an linking error. Yafu searches for ECM, but it is unable to find it.

I put the correct path into yafu.ini, somehow it won´t work. You can find the ini earlier in this post.

If someone wants to take a look into the server, feel free to ask. I´ll give you VNC access.
I might be able to take a look in a little while, if you'd like to PM me with the details.

Meanwhile, I've attached two instances of YAFU that were compiled on an i7-2600 running Debian. One is from the wip branch and the other from the trunk. Both run fine on other machines here, including a Fedora machine.
Attached Files
File Type: xz yafu-edh.tar.xz (1.55 MB, 64 views)
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Old 2018-05-02, 14:06   #14
EdH
 
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@MisterBitcoin: I think it's running now. YAFU wouldn't even run a shell, due to something corrupted in the yafu.ini file. That's why it gave the error message dealing with B1pm1 failure, the first option.
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Old 2018-05-14, 01:52   #15
VictordeHolland
 
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Quote:
Originally Posted by EdH View Post
Meanwhile, I've attached two instances of YAFU that were compiled on an i7-2600 running Debian. One is from the wip branch and the other from the trunk. Both run fine on other machines here, including a Fedora machine.
The trunk executable in your attachment works on Ubuntu 16.04.4 LTS!

I have most of my factoring programs-executables in <home>/factoring/ like:
/CADO-NFS/
/GGNFS/
/gmp/
/GMP-ECM/
/msieve/
/YAFU/

This is the yafu.ini I use: (I deleted the %windows dir/paths as they are confusing).
Code:
B1pm1=100000
B1pp1=20000
B1ecm=11000
rhomax=1000
threads=32
pretest_ratio=0.25
ggnfs_dir=/home/victor/factoring/GGNFS/
ecm_path=/home/victor/factoring/GMP-ECM/ecm
Everything I checked works (rho, P-1, ECM, SIQS):
Code:
05/14/18 02:17:14 v1.34.5 @ Supermicro, ****************************
05/14/18 02:17:14 v1.34.5 @ Supermicro, Starting factorization of 2056802480868100646375721251575555494408897387375737955882170045672576386016591560879707933101909539325829251496440620798637813
05/14/18 02:17:14 v1.34.5 @ Supermicro, using pretesting plan: normal
05/14/18 02:17:14 v1.34.5 @ Supermicro, no tune info: using qs/gnfs crossover of 95 digits
05/14/18 02:17:14 v1.34.5 @ Supermicro, ****************************
05/14/18 02:17:14 v1.34.5 @ Supermicro, rho: x^2 + 3, starting 1000 iterations on C127
05/14/18 02:17:14 v1.34.5 @ Supermicro, prp6 = 280673
05/14/18 02:17:14 v1.34.5 @ Supermicro, rho: x^2 + 3, starting 1000 iterations on C121
05/14/18 02:17:14 v1.34.5 @ Supermicro, rho: x^2 + 2, starting 1000 iterations on C121
05/14/18 02:17:14 v1.34.5 @ Supermicro, rho: x^2 + 1, starting 1000 iterations on C121
05/14/18 02:17:14 v1.34.5 @ Supermicro, pm1: starting B1 = 150K, B2 = gmp-ecm default on C121
05/14/18 02:17:14 v1.34.5 @ Supermicro, prp12 = 598990818061
05/14/18 02:17:14 v1.34.5 @ Supermicro, current ECM pretesting depth: 0.00
05/14/18 02:17:14 v1.34.5 @ Supermicro, scheduled 30 curves at B1=2000 toward target pretesting depth of 33.85
05/14/18 02:17:15 v1.34.5 @ Supermicro, prp13 = 4527716228491 (curve 1 stg2 B1=2000 sigma=451473622 thread=1)
05/14/18 02:17:15 v1.34.5 @ Supermicro, prp10 = 2756163353 (curve 1 stg2 B1=2000 sigma=2019115514 thread=3)
05/14/18 02:17:15 v1.34.5 @ Supermicro, Finished 32 curves using Lenstra ECM method on C110 input, B1=2K, B2=gmp-ecm default
05/14/18 02:17:15 v1.34.5 @ Supermicro, current ECM pretesting depth: 15.19
05/14/18 02:17:15 v1.34.5 @ Supermicro, scheduled 74 curves at B1=11000 toward target pretesting depth of 26.77
05/14/18 02:17:15 v1.34.5 @ Supermicro, prp18 = 248158049830971629 (curve 1 stg1 B1=11000 sigma=971411753 thread=27)
05/14/18 02:17:15 v1.34.5 @ Supermicro, Finished 32 curves using Lenstra ECM method on C87 input, B1=11K, B2=gmp-ecm default
05/14/18 02:17:15 v1.34.5 @ Supermicro, current ECM pretesting depth: 17.35
05/14/18 02:17:15 v1.34.5 @ Supermicro, scheduled 42 curves at B1=11000 toward target pretesting depth of 21.54
05/14/18 02:17:15 v1.34.5 @ Supermicro, Finished 64 curves using Lenstra ECM method on C70 input, B1=11K, B2=gmp-ecm default
05/14/18 02:17:15 v1.34.5 @ Supermicro, current ECM pretesting depth: 20.31
05/14/18 02:17:15 v1.34.5 @ Supermicro, scheduled 54 curves at B1=50000 toward target pretesting depth of 21.54
05/14/18 02:17:16 v1.34.5 @ Supermicro, Finished 64 curves using Lenstra ECM method on C70 input, B1=50K, B2=gmp-ecm default
05/14/18 02:17:16 v1.34.5 @ Supermicro, final ECM pretested depth: 21.81
05/14/18 02:17:16 v1.34.5 @ Supermicro, scheduler: switching to sieve method
05/14/18 02:17:16 v1.34.5 @ Supermicro, starting SIQS on c70: 3950565477929583959090443657115834369563721138106225828250209513731263
05/14/18 02:17:16 v1.34.5 @ Supermicro, random seeds: 2053521748, 760562015
05/14/18 02:17:16 v1.34.5 @ Supermicro, ==== sieve params ====
05/14/18 02:17:16 v1.34.5 @ Supermicro, n = 71 digits, 233 bits
05/14/18 02:17:16 v1.34.5 @ Supermicro, factor base: 12160 primes (max prime = 278671)
05/14/18 02:17:16 v1.34.5 @ Supermicro, single large prime cutoff: 22293680 (80 * pmax)
05/14/18 02:17:16 v1.34.5 @ Supermicro, double large prime range from 37 to 44 bits
05/14/18 02:17:16 v1.34.5 @ Supermicro, double large prime cutoff: 16854938548958
05/14/18 02:17:16 v1.34.5 @ Supermicro, allocating 5 large prime slices of factor base
05/14/18 02:17:16 v1.34.5 @ Supermicro, buckets hold 2048 elements
05/14/18 02:17:16 v1.34.5 @ Supermicro, using SSE4.1 enabled 32k sieve core
05/14/18 02:17:16 v1.34.5 @ Supermicro, sieve interval: 6 blocks of size 32768
05/14/18 02:17:16 v1.34.5 @ Supermicro, polynomial A has ~ 9 factors
05/14/18 02:17:16 v1.34.5 @ Supermicro, using multiplier of 3
05/14/18 02:17:16 v1.34.5 @ Supermicro, using SPV correction of 19 bits, starting at offset 30
05/14/18 02:17:16 v1.34.5 @ Supermicro, trial factoring cutoff at 78 bits
05/14/18 02:17:16 v1.34.5 @ Supermicro, ==== sieving started (32 threads) ====
05/14/18 02:17:18 v1.34.5 @ Supermicro, trial division touched 1832182 sieve locations out of 16130113536
05/14/18 02:17:18 v1.34.5 @ Supermicro, squfof: 1 failures, 17917 attempts, 321456 outside range, 154968 prp, 17172 useful
05/14/18 02:17:18 v1.34.5 @ Supermicro, 14496 relations found: 5464 full + 9032 from 81510 partial, using 41021 polys (322 A polys)
05/14/18 02:17:18 v1.34.5 @ Supermicro, on average, sieving found 2.12 rels/poly and 33699.23 rels/sec
05/14/18 02:17:18 v1.34.5 @ Supermicro, trial division touched 1832182 sieve locations out of 16130113536
05/14/18 02:17:18 v1.34.5 @ Supermicro, ==== post processing stage (msieve-1.38) ====
05/14/18 02:17:18 v1.34.5 @ Supermicro, begin with 86974 relations
05/14/18 02:17:18 v1.34.5 @ Supermicro, reduce to 24385 relations in 5 passes
05/14/18 02:17:18 v1.34.5 @ Supermicro, recovered 24385 relations
05/14/18 02:17:18 v1.34.5 @ Supermicro, recovered 18407 polynomials
05/14/18 02:17:18 v1.34.5 @ Supermicro, attempting to build 14496 cycles
05/14/18 02:17:18 v1.34.5 @ Supermicro, found 14496 cycles in 2 passes
05/14/18 02:17:18 v1.34.5 @ Supermicro, distribution of cycle lengths:
05/14/18 02:17:18 v1.34.5 @ Supermicro,    length 1 : 5464
05/14/18 02:17:18 v1.34.5 @ Supermicro,    length 2 : 6196
05/14/18 02:17:18 v1.34.5 @ Supermicro,    length 3 : 2015
05/14/18 02:17:18 v1.34.5 @ Supermicro,    length 4 : 610
05/14/18 02:17:18 v1.34.5 @ Supermicro,    length 5 : 168
05/14/18 02:17:18 v1.34.5 @ Supermicro,    length 6 : 31
05/14/18 02:17:18 v1.34.5 @ Supermicro,    length 7 : 10
05/14/18 02:17:18 v1.34.5 @ Supermicro,    length 9+: 2
05/14/18 02:17:18 v1.34.5 @ Supermicro, largest cycle: 8 relations
05/14/18 02:17:18 v1.34.5 @ Supermicro, matrix is 12160 x 14496 (2.3 MB) with weight 476375 (32.86/col)
05/14/18 02:17:18 v1.34.5 @ Supermicro, sparse part has weight 476375 (32.86/col)
05/14/18 02:17:18 v1.34.5 @ Supermicro, filtering completed in 4 passes
05/14/18 02:17:18 v1.34.5 @ Supermicro, matrix is 10983 x 11047 (1.5 MB) with weight 309420 (28.01/col)
05/14/18 02:17:18 v1.34.5 @ Supermicro, sparse part has weight 309420 (28.01/col)
05/14/18 02:17:18 v1.34.5 @ Supermicro, saving the first 48 matrix rows for later
05/14/18 02:17:18 v1.34.5 @ Supermicro, matrix is 10935 x 11047 (1.3 MB) with weight 248927 (22.53/col)
05/14/18 02:17:18 v1.34.5 @ Supermicro, sparse part has weight 220626 (19.97/col)
05/14/18 02:17:18 v1.34.5 @ Supermicro, matrix includes 64 packed rows
05/14/18 02:17:18 v1.34.5 @ Supermicro, commencing Lanczos iteration
05/14/18 02:17:18 v1.34.5 @ Supermicro, memory use: 1.7 MB
05/14/18 02:17:19 v1.34.5 @ Supermicro, lanczos halted after 174 iterations (dim = 10932)
05/14/18 02:17:19 v1.34.5 @ Supermicro, recovered 15 nontrivial dependencies
05/14/18 02:17:19 v1.34.5 @ Supermicro, prp36 = 117445937227520353139789517076610399
05/14/18 02:17:19 v1.34.5 @ Supermicro, prp35 = 33637310674071348724927955857253537
05/14/18 02:17:19 v1.34.5 @ Supermicro, Lanczos elapsed time = 1.0024 seconds.
05/14/18 02:17:19 v1.34.5 @ Supermicro, Sqrt elapsed time = 0.0142 seconds.
05/14/18 02:17:19 v1.34.5 @ Supermicro, SIQS elapsed time = 3.5977 seconds.
NFS works too:
Code:
05/14/18 02:23:52 v1.34.5 @ Supermicro, nfs: commencing nfs on c94: 9379745492489847473195765085744210645855556204246905462578925932774371960871599319713301154409
05/14/18 02:23:53 v1.34.5 @ Supermicro, nfs: commencing poly selection with 32 threads
05/14/18 02:23:53 v1.34.5 @ Supermicro, nfs: setting deadline of 20 seconds
05/14/18 02:24:21 v1.34.5 @ Supermicro, nfs: completed 523 ranges of size 250 in 28.4503 seconds
05/14/18 02:24:21 v1.34.5 @ Supermicro, nfs: best poly = # norm 6.654414e-13 alpha -5.486082 e 2.519e-08 rroots 2
05/14/18 02:24:21 v1.34.5 @ Supermicro, nfs: commencing lattice sieving with 32 threads
05/14/18 02:24:48 v1.34.5 @ Supermicro, nfs: commencing lattice sieving with 32 threads
05/14/18 02:25:14 v1.34.5 @ Supermicro, nfs: commencing lattice sieving with 32 threads
05/14/18 02:25:40 v1.34.5 @ Supermicro, nfs: commencing lattice sieving with 32 threads
05/14/18 02:26:03 v1.34.5 @ Supermicro, nfs: commencing lattice sieving with 32 threads
05/14/18 02:26:29 v1.34.5 @ Supermicro, nfs: commencing lattice sieving with 32 threads
05/14/18 02:26:55 v1.34.5 @ Supermicro, nfs: commencing msieve filtering
05/14/18 02:27:33 v1.34.5 @ Supermicro, nfs: raising min_rels by 5.00 percent to 2072441
05/14/18 02:27:33 v1.34.5 @ Supermicro, nfs: commencing lattice sieving with 32 threads
05/14/18 02:27:56 v1.34.5 @ Supermicro, nfs: commencing msieve filtering
05/14/18 02:28:42 v1.34.5 @ Supermicro, nfs: raising min_rels by 5.00 percent to 2410184
05/14/18 02:28:42 v1.34.5 @ Supermicro, nfs: commencing lattice sieving with 32 threads
05/14/18 02:29:07 v1.34.5 @ Supermicro, nfs: commencing msieve filtering
05/14/18 02:30:05 v1.34.5 @ Supermicro, nfs: commencing msieve linear algebra
05/14/18 02:33:02 v1.34.5 @ Supermicro, nfs: commencing msieve sqrt
05/14/18 02:33:54 v1.34.5 @ Supermicro, prp42 = 859735020008609871428759089831769060699941
05/14/18 02:33:54 v1.34.5 @ Supermicro, prp53 = 10910042366770069935194172108679294830357131379375349
05/14/18 02:33:54 v1.34.5 @ Supermicro, NFS elapsed time = 601.2586 seconds.
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Old 2018-05-14, 02:58   #16
EdH
 
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Quote:
Originally Posted by VictordeHolland View Post
The trunk executable in your attachment works on Ubuntu 16.04.4 LTS!
Thanks! I'm using the wip version everywhere to try to stay on the newest edge. Some of my machines are still using Ubuntu 14.04, but most are 16.04, with a handful of Debian systems. Of note, although I have not gathered empirical data to support this, the Debian systems appear to run a bit faster.

Very minor, but the wip version gives the proper tune info message when it runs:
Code:
fac: using tune info for qs/gnfs crossover
The last time I ran the trunk version, it wouldn't give the proper message, even when the tune info was available.
Code:
fac: no tune info: using qs/gnfs crossover of 95 digits
I still see this message with one of my machines running the wip version, too. I see you don't have tune info yet, but when you do, I'd be interested in what message is reported during the run?

Quote:
Originally Posted by VictordeHolland View Post
I have most of my factoring programs-executables in <home>/factoring/ like:
/CADO-NFS/
/GGNFS/
/gmp/
/GMP-ECM/
/msieve/
/YAFU/
I see my difference is Math where you have factoring and I use all lower case for my package directories. I've also shortened my GMP-ECM to ecm, since that is the name used to run it.

Quote:
Originally Posted by VictordeHolland View Post
This is the yafu.ini I use: (I deleted the %windows dir/paths as they are confusing).
Code:
B1pm1=100000
B1pp1=20000
B1ecm=11000
rhomax=1000
threads=32
pretest_ratio=0.25
ggnfs_dir=/home/victor/factoring/GGNFS/
ecm_path=/home/victor/factoring/GMP-ECM/ecm
I also delete all the %entries, but they are ignored, if left. MisterBitcoin had a problem with his .ini, that I suspect was caused by a Windows editor adding an incompatible character somewhere. I even tried cleaning up the one he had, but the problem didn't clear up until I started fresh with a linux editor. I don't remember for sure, but I think I used vi.

I do see a couple differences in your .ini that I have changed in mine. First, I have the gnfs-* binaries in ggnfs/bin/. Second, if you have installed GMP-ECM, the executable should reside in /usr/local/bin/. This can be proven with:
Code:
$ whereis ecm
ecm: /usr/local/bin/ecm
So, in my .ini file I have the line:
Code:
ecm_path=/usr/local/bin/ecm
Thanks for your post!
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Old 2019-09-03, 05:55   #17
vochong
 
Sep 2019

2 Posts
Default Please help fix the yafu compile errors

Hi Ed,

I followed your instructions to install ecm, ggns, gmps, msieve successfully. However, when it came to compiling yafu, it kept failing with the following error. Could you please give me some suggestion to fix it.

Best regards,
Eric

Ubuntu 18.04.3

Code:
~/Math$ ls -la

drwxrwxr-x 27 python python   12288 Sep  2 03:24 ecm
drwxrwxr-x 11 python python    4096 Apr 23  2011 ggnfs
drwxr-xr-x 16 python python    4096 Sep  2 10:54 gmp
drwxrwxr-x 21 python python    4096 Sep  2 22:45 msieve
drwxrwxr-x 11 python python    4096 Sep  2 22:41 yafu

cd yafu/

~/Math/yafu$ make NFS=1 USE_SSE41=1

gcc -g -DUSE_SSE41 -m64 -msse4.1 -DUSE_NFS -O3 -fomit-frame-pointer -Wall  -I. -Iinclude -Itop/aprcl -Itop/ -I../msieve/zlib -I/usr/local/lib/ -c -o factor/qs/msieve/lanczos.o factor/qs/msieve/lanczos.c
In file included from factor/qs/msieve/lanczos.c:20:0:
include/qs.h:30:10: fatal error: cofactorize.h: No such file or directory
 #include "cofactorize.h"
          ^~~~~~~~~~~~~~~
compilation terminated.
Makefile:370: recipe for target 'factor/qs/msieve/lanczos.o' failed
make: *** [factor/qs/msieve/lanczos.o] Error 1
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Old 2019-09-03, 14:33   #18
bsquared
 
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Quote:
Originally Posted by vochong View Post
Hi Ed,

I followed your instructions to install ecm, ggns, gmps, msieve successfully. However, when it came to compiling yafu, it kept failing with the following error. Could you please give me some suggestion to fix it.

Best regards,
Eric

Ubuntu 18.04.3

Code:
~/Math$ ls -la

drwxrwxr-x 27 python python   12288 Sep  2 03:24 ecm
drwxrwxr-x 11 python python    4096 Apr 23  2011 ggnfs
drwxr-xr-x 16 python python    4096 Sep  2 10:54 gmp
drwxrwxr-x 21 python python    4096 Sep  2 22:45 msieve
drwxrwxr-x 11 python python    4096 Sep  2 22:41 yafu

cd yafu/

~/Math/yafu$ make NFS=1 USE_SSE41=1

gcc -g -DUSE_SSE41 -m64 -msse4.1 -DUSE_NFS -O3 -fomit-frame-pointer -Wall  -I. -Iinclude -Itop/aprcl -Itop/ -I../msieve/zlib -I/usr/local/lib/ -c -o factor/qs/msieve/lanczos.o factor/qs/msieve/lanczos.c
In file included from factor/qs/msieve/lanczos.c:20:0:
include/qs.h:30:10: fatal error: cofactorize.h: No such file or directory
 #include "cofactorize.h"
          ^~~~~~~~~~~~~~~
compilation terminated.
Makefile:370: recipe for target 'factor/qs/msieve/lanczos.o' failed
make: *** [factor/qs/msieve/lanczos.o] Error 1
Unfortunately this probably only works with AVX2 if you are using the wip version. So, you'd need a computer new enough to have AVX2 instructions (haswell or newer) and then build with USE_AVX2=1.
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Old 2019-09-03, 14:52   #19
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Thanks for helping out bsquared!


Hi Eric,

This is the trouble with trying to stay on the edge. Sometimes it changes slightly and you slip off.

Here's what you should do, and I'll probably change the post to this:

Instead of using the /wip version which has the latest and greatest, use the following command to acquire the main release (/trunk) version of YAFU:

First, I'd get rid of the current yafu folder. Then use the following in place of the /wip checkout:
Code:
svn co https://svn.code.sf.net/p/yafu/code/trunk $HOME/Math/yafu
The rest should be pretty much the same, but let me know if it doesn't work. I do see I forgot to mention ggnfs in this thread, though.

Thanks for helping me stay on top of what works (and doesn't).


-Ed
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Old 2019-09-04, 09:30   #20
vochong
 
Sep 2019

102 Posts
Default Ed's modified instructions work perfectly.

Thank you Ed and bsquared!.

I followed Ed's newly modified instructions and was able to compile Yafu the very first time.

Last year, I tried to install Yafu on another machine using Ed's original instructions and everything worked smoothly, so it was disconcerting to me why I encountered this error on this machine.

You help bring the joy of mathematics and computing to the mass. Thank you so much!

Best regards,
Eric

Quote:
Originally Posted by EdH View Post
Thanks for helping out bsquared!


Hi Eric,

This is the trouble with trying to stay on the edge. Sometimes it changes slightly and you slip off.

Here's what you should do, and I'll probably change the post to this:

Instead of using the /wip version which has the latest and greatest, use the following command to acquire the main release (/trunk) version of YAFU:

First, I'd get rid of the current yafu folder. Then use the following in place of the /wip checkout:
Code:
svn co https://svn.code.sf.net/p/yafu/code/trunk $HOME/Math/yafu
The rest should be pretty much the same, but let me know if it doesn't work. I do see I forgot to mention ggnfs in this thread, though.

Thanks for helping me stay on top of what works (and doesn't).


-Ed

Last fiddled with by vochong on 2019-09-04 at 09:31
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Old 2019-09-04, 15:44   #21
EdH
 
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"Ed Hall"
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Glad to hear it's working now, Eric. Thank you for letting me know it wasn't. Although I test my instructions whenever I set up a "new" machine, I hadn't done so in a little while and I should, since I know bsquared is always staying on top of current capabilities with the /wip branch of YAFU. -Ed
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Old 2019-09-04, 21:53   #22
dizzyneuron
 
Sep 2019

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Hello

Been trying to build YAFU but seem to be stuck. Think maybe something with makefile but old brain is rusty so hoping one can point me in right direction -

Code:
../msieve/libmsieve.a(savefile.o): In function `savefile_open':
savefile.c:(.text+0x12b): undefined reference to `gzopen64'
savefile.c:(.text+0x24b): undefined reference to `gzopen64'
savefile.c:(.text+0x291): undefined reference to `gzopen64'
../msieve/libmsieve.a(savefile.o): In function `savefile_close':
savefile.c:(.text+0x36e): undefined reference to `gzclose'
../msieve/libmsieve.a(savefile.o): In function `savefile_write_line':
savefile.c:(.text+0x478): undefined reference to `gzputs'
../msieve/libmsieve.a(savefile.o): In function `savefile_flush':
savefile.c:(.text+0x4c5): undefined reference to `gzputs'
../msieve/libmsieve.a(savefile.o): In function `savefile_eof':
savefile.c:(.text+0x39d): undefined reference to `gzeof'
../msieve/libmsieve.a(savefile.o): In function `savefile_read_line':
savefile.c:(.text+0x41c): undefined reference to `gzgets'
../msieve/libmsieve.a(savefile.o): In function `savefile_rewind':
savefile.c:(.text+0x51d): undefined reference to `gzrewind'
collect2: error: ld returned 1 exit status
Makefile:293: recipe for target 'x86_64' failed
make: *** [x86_64] Error 1
Running Ubuntu 18.04 and all other installs built well. Thanks.

Cheers, Michael
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