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@tchuchuc fixed.

I'm facing an error that is giving klatexformula - exit status 4.

At some point of the process it does:

==> Starting build()...
CMake Warning:
  No source or binary directory provided.  Both will be assumed to be the
  same as the current working directory, but note that this warning will
  become a fatal error in future CMake releases.


CMake Error at CMakeLists.txt:6 (cmake_minimum_required):
  Compatibility with CMake < 3.5 has been removed from CMake.

  Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
  to tell CMake that the project requires at least <min> but has been updated
  to work with policies introduced by <max> or earlier.

  Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.


-- Configuring incomplete, errors occurred!
==> ERROR: A failure occurred in build().
    Aborting...
 -> error making: klatexformula-exit status 4

https://bugreports.qt.io/browse/QTBUG-81671

A regression in 5.14, should be fixed in 5.14.2.

I'm getting the same error as @kirk:

WARNING: Failed write to Tooltip temp image to temporary file `/tmp/klf_tooltip_XXXXXX.png'

I've already installed it manually and via yay but have no idea what's going on.

@kirk

Just do makepkg -i is sufficient. The patch is applied as written in PKGBUILD .

@allencch Did you have to apply the patch? (klfbackend.patch) Or just installing normally from source?

Then, this would imply that this aur package has a problem? (Since I suppose you didn't install using yay/yaourt or something equivalent)

@kirk

Tested with clean installation from the source. Cannot re-produce the issues you mentioned.

First of all, the package throws an error, not working properly. Second of all, it requires use password for installation which is uncommon for aur packages.

Third of all, it keeps throwing as segfault

LatexFormula Version 4.0.0 by Philippe Faist (c) 2005-2017 Licensed under the terms of the GNU General Public License (GPLv2+)

Warning: libpng warning: iCCP: known incorrect sRGB profile Warning: libpng warning: iCCP: known incorrect sRGB profile Warning: libpng warning: iCCP: known incorrect sRGB profile Warning: libpng warning: iCCP: known incorrect sRGB profile libpng error: profile 'Artifex Software sRGB ICC Profile': D0FC018Ch: length does not match profile Warning: * In function KLFBackend::getLatexFormula() 14/01/2020 20:25 Can't save "final" PNG data. libpng error: profile 'Artifex Software sRGB ICC Profile': D0FC018Ch: length does not match profile libpng error: profile 'Artifex Software sRGB ICC Profile': D0FC018Ch: length does not match profile libpng error: profile 'Artifex Software sRGB ICC Profile': 8006008Ch: length does not match profile Warning: In function KLFBackend::getLatexFormula() 14/01/2020 20:25 *** Can't save "final" PNG data. libpng error: profile 'Artifex Software sRGB ICC Profile': 8006008Ch: length does not match profile libpng error: profile 'Artifex Software sRGB ICC Profile': 8006008Ch: length does not match profile Warning: WARNING: Failed write to Tooltip temp image to temporary file `/tmp/klf_tooltip_XXXXXX.png' !

Segmentation Fault :-( Segmentation Fault :-( Segmentation fault (core dumped)

The segfault is thrown in the following method fileTemplete in class QTemporaryFile

x00007ffff6a00920 in QTemporaryFile::fileTemplate() const () from /usr/lib/libQt5Core.so.

KLatexFormula is a non-KDE application. The K in the name "KLatexFormula" is there for historical reasons. Since version 3.0, KLatexFormula is not a KDE-specific application; it is based on Qt (Qt 5 since version 4.0) and runs natively on Linux, Windows, and Mac OS X.

So kdebase-runtime should also be removed. No need for kde runtime. Thanks.

From: https://klatexformula.sourceforge.io/about

@springzfx , thanks for the suggestion. Updated.