On 2021-01-15 01:13, wilhelm-eger--- via Cygwin wrote:
Gesendet: Donnerstag, 14. Januar 2021 um 23:52 Uhr
Please try by downloading the complete Cygwin source package, and try a vanilla
rebuild first with zero changes, then change only the .cygport VERSION= to the
latest, rebuild, and fix any problems with that as you go.
I have done the following
mkdir opencv
cd opencv
git clone http://cygwin.com/git/cygwin-packages/opencv.git .
cygport opencv.cygport fetch
cygport opencv.cygport all
Same error.
Is there any other location where I could get the opencv source package from?
Check your email host location:
$ geoiplookup web.de
GeoIP Country Edition: DE, Germany
GeoIP City Edition, Rev 1: DE, 01, Baden-Wurttemberg, Karlsruhe, 76137,
49.001900, 8.428700, 0, 0
GeoIP ASNum Edition: AS8560 1&1 Internet SE
Check Cygwin German mirror locations for one nearby:
$ sed '/^\s\+[^;]\+;\([^;]\+\);Europe;Germany$/!d;s!!\1!' /etc/setup/setup.rc |
sort -u | xargs -l1 geoiplookup
...
$ geoiplookup ftp-stud.hs-esslingen.de
GeoIP Country Edition: DE, Germany
GeoIP City Edition, Rev 1: DE, 01, Baden-Wurttemberg, Stuttgart, 70173,
48.766701, 9.183300, 0, 0
GeoIP ASNum Edition: AS553 Universitaet Stuttgart
...
in same Land, lat/long diff about .25/.75, and about 61km great circle distance.
Find mirror URLs:
$ fgrep esslingen.de /etc/setup/setup.rc
ftp://ftp-stud.hs-esslingen.de/pub/Mirrors/sources.redhat.com/cygwin/;ftp-stud.hs-esslingen.de;Europe;Germany
http://ftp-stud.hs-esslingen.de/pub/Mirrors/sources.redhat.com/cygwin/;ftp-stud.hs-esslingen.de;Europe;Germany
https://ftp-stud.hs-esslingen.de/pub/Mirrors/sources.redhat.com/cygwin/;ftp-stud.hs-esslingen.de;Europe;Germany
Find source package:
$ grep -m1 '^source:\s.*opencv' ~/mirror/x86_64/setup.ini
source: x86_64/release/opencv/opencv-3.4.1-2-src.tar.xz 138322784
8da273070a232773d522dfe9b2cf098115e34a595a3d0c968b7fc0ba4f17f92db4f405857157f72f5218e17e6694c1d93ddc22c70fc6bcbf383077499373657a
Download source package:
$ curl -OJRSs
https://ftp-stud.hs-esslingen.de/pub/Mirrors/sources.redhat.com/cygwin/x86_64/release/opencv/opencv-3.4.1-2-src.tar.xz
*OR*
$ wget -N -nv
https://ftp-stud.hs-esslingen.de/pub/Mirrors/sources.redhat.com/cygwin/x86_64/release/opencv/opencv-3.4.1-2-src.tar.xz
$ tar -xf opencv-3.4.1-2-src.tar.xz
Also package *patches* visible from:
https://build.opensuse.org/package/show/openSUSE:Factory/opencv3
but patches directly downloadbale from:
https://github.com/bmwiedemann/openSUSE/tree/20201007/packages/o/opencv3
[thanks to Achim for pointers]
and
https://sources.debian.org/data/main/o/opencv/3.2.0+dfsg-6/debian/patches/
https://salsa.debian.org/science-team/opencv/-/tree/debian/3.2.0+dfsg-6/debian/patches
https://salsa.debian.org/science-team/opencv/-/tree/debian/3.3.0+dfsg-1_exp0/debian/patches
https://salsa.debian.org/science-team/opencv/-/tree/debian/3.4.4+dfsg-1_exp1/debian/patches
https://salsa.debian.org/science-team/opencv/-/tree/debian/3.4.5+dfsg-1_exp1/debian/patches
and
https://src.fedoraproject.org/rpms/opencv/tree/f30
and you can pick later branches or tags for patches for later versions as you
need from these repos: cygport can use URLs or local file names in
PATCH_URI="..." and the string content may be a separate line per patch, usually
with a leading tab.
Btw. there is no need to change to another Version, I just want to have cv2
also in python3.8 working. From what I have experienced with this package I
assume that this would also not compile with python3.6 atm. Seems to be a
cmake or gcc error to me.
First check your current packages, toolchains, and libraries against a known
good working set of vanilla sources at an earlier version that should have no
issues, then work your way up to newer versions adding difficulties! ;^>
--
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.
[Data in binary units and prefixes, physical quantities in SI.]
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