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(4.x) Merge 3.4 #21317

Merged
merged 11 commits into from
Dec 22, 2021
Merged

(4.x) Merge 3.4 #21317

merged 11 commits into from
Dec 22, 2021

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alalek
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@alalek alalek commented Dec 22, 2021

#21114 from dwardor:patch-1
#21295 from alalek:update_ffmpeg_3.4
#21297 from rogday:div_fix
#21302 from alalek:issue_21299_3.4
#21313 from alalek:fix_links_3.4

Previous "Merge 3.4": #21288

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alalek and others added 11 commits December 20, 2021 15:03
* Fix compile against lapack-3.10.0

Fix compilation against lapack >= 3.9.1 and 3.10.0 while not breaking older versions

OpenCVFindLAPACK.cmake & CMakeLists.txt: determine OPENCV_USE_LAPACK_PREFIX from LAPACK_VERSION

hal_internal.cpp : Only apply LAPACK_FUNC to functions whose number of inputs depends on LAPACK_FORTRAN_STR_LEN in lapack >= 3.9.1

lapack_check.cpp : remove LAPACK_FUNC which is not OK as function are not used with input parameters (so lapack.h preprocessing of "LAPACK_xxxx(...)" is not applicable with lapack >= 3.9.1
If not removed lapack_check fails so LAPACK is deactivated in build (not want we want)

use OCV_ prefix and don't use Global, instead generate OCV_LAPACK_FUNC depending on CMake Conditions

Remove CONFIG from find_package(LAPACK) and use LAPACK_GLOBAL and LAPACK_NAME to figure out if using netlib's reference LAPACK implementation and how to #define OCV_LAPACK_FUNC(f)

* Fix typos and grammar in comments
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alalek commented Dec 22, 2021

👍

@alalek alalek merged commit 9777fba into opencv:4.x Dec 22, 2021
@alalek alalek mentioned this pull request Dec 24, 2021
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3 participants