Did you read this ... if it can help you ?
https://groups.google.com/forum/#!topic/sage-devel/zQsZsivts0I
Le 13/07/2017 à 02:54, Christopher Phoenix a écrit :
My attempt to build Sage 7.6 resulted in an error. Before beginning, I
checked that I had all the required dependencies and suggested
programs. Then I got the code through git, set MAKE='make -j5 -j4'
since I have four physical cpu cores, and ran make. Make ran for about
45 min. and then returned this error:
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Errorbuilding Sage.
Thefollowing package(s)may have failed to build (notnecessarily
during thisrun of 'make all'):
*package:openblas-0.2.19.p0
log
file:/home/christopher/sagemath/sage/logs/pkgs/openblas-0.2.19.p0.log
build
directory:/home/christopher/sagemath/sage/local/var/tmp/sage/build/openblas-0.2.19.p0
Thebuild directory may contain configuration files andother potentially
helpful information.WARNING:ifyou now run 'make'again,the build
directory will,bydefault,be deleted.Setthe environment variable
SAGE_KEEP_BUILT_SPKGS to 'yes'to prevent this.
Makefile:16:recipe fortarget 'all'failed
make:***[all]Error1
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I checked the log file, and it said that detecting the CPU failed:
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make[3]:***[getarch_2nd]Error1
Makefile:123:***OpenBLAS:DetectingCPU failed.PleasesetTARGET explicitly,
e.g.make TARGET=your_cpu_target.Pleaseread README forthe detail..Stop.
make[3]:Leavingdirectory
'/home/christopher/sagemath/sage/local/var/tmp/sage/build/openblas-0.2.19.p0/src'
Errorbuilding OpenBLAS
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Above this, I saw a bunch of errors involving getarch_2nd.c, which
seems consistent with this. My cput is an Intel Celeron N2940 with
four cores and a base clock of 1.83 ghz, this is what inxi reports on it:
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me@thinkpad11e:~$ inxi -C
CPU:Quadcore IntelCeleronN2940 (-MCP-)cache:1024KB
clock speeds:max:2249MHz1:1140MHz2:1569MHz3:2245MHz4:2247MHz
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This is my first time building a program from source. It looks like I
have to set the TARGET env variable to indicate my CPU manually, but
I'm not sure how to do that. Should I do this, or just trying running
make again? (If I double-posted, I'm sorry, the first time I tried to
post it looked like it had failed to come through)
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