On Sun, May 24, 2020 at 10:14:49PM +0200, Stefan Weil wrote:
> Adrian, I am afraid that there is a misunderstanding.
>
> The code part which is compiled with -march=native is never executed by
> default.
I get that point.
> There is a command line option which allows users to select the code
> w
Adrian, I am afraid that there is a misunderstanding.
The code part which is compiled with -march=native is never executed by
default.
There is a command line option which allows users to select the code
which is used for certain time critical calculations (dot product). A
wrong choice is not a s
Processing control commands:
> severity -1 serious
Bug #949638 [tesseract] tesseract: uses -march=native
Severity set to 'serious' from 'normal'
--
949638: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=949638
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
Severity 949638 normal
Thanks
On 24/01/2020 19:16, Stefan Weil wrote:
As far as I know all Linux distributions use the autoconf based build,
Debian certainly does appear to be using the autoconf based build.
The default autoconf build uses -march=native only if it is supported by
the compiler
It is not necessary to patch Tesseract code if for whatever reason
-march=native is completely unwanted.
`make libtesseract_native_la_CXXFLAGS=` will override the extra compiler
flags which are used to produce the native code, so only the default
flags which don't include -march=native will be use
> The URL for the patch is 404.
s/tessarect/tesseract/
The fixed URL is https://debdiffs.raspbian.org/main/t/tesseract/.
Stefan
Am 24.01.20 um 19:55 schrieb Jeff Breidenbach:
>
> Regarding: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=949638
>
> Thank you, Peter.
>
> 1. The URL for the patch is 404.
>
> 2. There may be some subtlety with -march=native, specifically related to
> detection of SIMD instructions like AVX
BCC: Stefan Weil since I don't know if he wants his email posted in
bugs.debian.org
Regarding: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=949638
Thank you, Peter.
1. The URL for the patch is 404.
2. There may be some subtlety with -march=native, specifically related to
detection of SIMD
Package: tesseract
Version: 4.1.0-1
Severity: serious
Tags: patch
I recently discovered that tesseract 4.1.1-1 failed the armv7 contamination
check we run in raspbian.
Investigating shows that since version 4.1.0-1 tesseract started using
-march=native. This compiler option is totally inapprop
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