Arch Linux User Repository

@ferda Read the pinned comment and implement checkrebuild from rebuild-detector into your workflow.

every time you have error while loading shared libraries: libXXX.so.XXX: cannot open shared object file: No such file or directory for build from source programs you have to rebuild it

Another package goes to the ignore list - opencv. Upgrading it to the latest v4.8.0 causes nomacs to not open when I click an image anymore. Downgrading it to 4.7.0 fixes that.

@rado84 you need rebuild the package not to hold back other packages, it is the same every time a dinamically linked soname changes

$ nomacs
nomacs: error while loading shared libraries: libopencv_imgproc.so.407: cannot open shared object file: No such file or directory

Now using git tags as source=() as requested

Pre-build packages here (also for -git version) : https://sourceforge.net/projects/fabiololix-os-archive/files/Packages/

As I made a PR with fixes https://github.com/nomacs/nomacs/pull/1290 updated PKGBUILD with -DENABLE_HEIF=ON fixes

# Maintainer: Fabio 'Lolix' Loli <fabio.loli@disroot.org> -> https://github.com/FabioLolix
# Contributor: David Runge <dvzrv@archlinux.org>
# Contributor: speps <speps at aur dot archlinux dot org>

_plugins_ver=3.21.0
pkgname=nomacs
pkgver=3.21.0
pkgrel=3
epoch=1
pkgdesc="A Qt image viewer"
arch=(x86_64)
url="https://github.com/nomacs/nomacs"
license=(GPL-3.0-only)
depends=(exiv2 gcc-libs glibc libraw libtiff opencv qt6-base qt6-svg quazip-qt6)

#depends+=(libopencv_imgproc.so)
makedepends=(cmake git qt6-tools python)
optdepends=('qt6-imageformats: support additional image formats'
            'kimageformats: support QOI (Quite OK Image Format)')
source=("git+https://github.com/nomacs/nomacs.git#tag=${pkgver}"
        #"nomacs-plugins-qt6_01.patch::https://github.com/nomacs/nomacs-plugins/pull/40/commits/1b87f615ce0e7125ec739bc3e40d8ff7f6783587.patch"
        #"nomacs-plugins-qt6_02.patch::https://github.com/nomacs/nomacs-plugins/pull/40/commits/a869962f051504dd2c1dedeb3bc3d266c17070c1.patch"
        "nomacs-plugins-${_plugins_ver}.tar.gz::https://github.com/novomesk/nomacs-plugins/archive/refs/tags/${_plugins_ver}.tar.gz"
        "heif-support-fixes.patch::https://patch-diff.githubusercontent.com/raw/nomacs/nomacs/pull/1290.patch"
        )
b2sums=('3360bfeab0c1d323903240b136c2d9baf58f49cf0d672d69bc1473fbb0fe00103885f7d0194ee2200259cb548ad8c6d77127c96486f82055493cc89488bd9f99'
        '83627d27a345a29c17155bb6496464e847cfc7d3b30174ac855aaff87bd018fd6651f0bfa3220b64dd36d9e6c53250e8799d96ff3cafeefde9e2818789b48ff7'
        '994ec2a3bf9b1cc9e6f602ee4cd0d7e3e296e555d70cb1b86c886aa501d7aece3452b7f5bf184346dfb867cc51412759434c69f0ad3b6ccb047ec1cc553c3113'
    )


export GIT_LFS_SKIP_SMUDGE=1

prepare() {
  #cd "nomacs-plugins-${_plugins_ver}"
  #patch -Np1 -i ../nomacs-plugins-qt6_01.patch
  #patch -Np1 -i ../nomacs-plugins-qt6_02.patch

  cd "${srcdir}/nomacs"
  patch -Np1 -i ../heif-support-fixes.patch
  # copy plugin sources into place
  cp -av "${srcdir}/nomacs-plugins-${_plugins_ver}/"* "ImageLounge/plugins"
}

build() {
  cd nomacs
  cmake -B build -S ImageLounge -Wno-dev \
    -DCMAKE_BUILD_TYPE=RelWithDebInfo \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DQT_VERSION_MAJOR=6 \
    -DENABLE_OPENCV=ON \
    -DENABLE_RAW=ON \
    -DENABLE_TIFF=ON \
    -DENABLE_QT_DEBUG=ON \
    -DENABLE_QUAZIP=ON \
    -DENABLE_TRANSLATIONS=ON \
    -DENABLE_PLUGINS=ON \
    -DENABLE_HEIF=ON \
    -DENABLE_AVIF=ON \
    -DENABLE_JXL=ON \
    -DENABLE_JXR=ON \
    -DUSE_SYSTEM_QUAZIP=ON

  cmake --build build
}

package() {
  cd nomacs
  DESTDIR="$pkgdir" cmake --install build
}

It looks like the update removed git-lfs from makedepends, but this is still required to build.

==> Extracting sources...
  -> Creating working copy of nomacs git repo...
Cloning into 'nomacs'...
done.
git-lfs filter-process: line 1: git-lfs: command not found
fatal: the remote end hung up unexpectedly
warning: Clone succeeded, but checkout failed.
You can inspect what was checked out with 'git status'
and retry with 'git restore --source=HEAD :/'

==> ERROR: Failure while creating working copy of nomacs git repo
    Aborting...

@kinoe rebuilding with devtools works fine, launch fine

Solved: see last line
After update of lapack version 3.12.0 to 3.12.1 getting build error on Arch Linux:

[ 98%] Linking CXX executable nomacs
/usr/bin/ld: /usr/lib/liblapack.so.3: undefined reference to `ldawork_'
/usr/bin/ld: /usr/lib/liblapack.so.3: undefined reference to `taa_'
collect2: error: ld returned 1 as end status
make[2]: *** [CMakeFiles/nomacs.dir/build.make:257: nomacs] error 1
make[1]: *** [CMakeFiles/Makefile2:142: CMakeFiles/nomacs.dir/all] error 2
make: *** [Makefile:166: all] error 2

Edit: building AND running with lapack 3.12.1 is failing
SOLVED: it was an error with lapack (cblas, blas?).

but why doesn't it build HEIF support?

It isn't complete (even enabling the flags it don't)

CMake Warning at CMakeLists.txt:298 (message): plugins directory not found, not building plugins. You have to check out the nomacs-plugins git to the 'plugins' folder if you want to build them

--

-- nomacs - Image Lounge 3.19 https://nomacs.org -- Qt version: 6.7.3 -- nomacs will be compiled with OPENCV support .................. YES -- nomacs will be compiled with LIBRAW support .................. YES -- nomacs will be compiled with extended TIFF support ........... YES -- nomacs will be compiled with plugin support .................. NO -- nomacs will be compiled with HEIF support .................... NO -- nomacs will be compiled with Translations .................... YES -- nomacs will be compiled with QuaZip support .................. YES -- nomacs tests ................................................. YES

Sooo, I don't really care about the plugins much, but why doesn't it build HEIF support?

@ChrisK for build issues, maybe locally I have this fixed, I don't remember right now

Can I ask why inclusion of the official plugins have been commented out in the PKGBUILD? I'm not able to use nomacs to view webp files because of this

@C0rn3j I have subscribed to the github to be updated https://github.com/nomacs/nomacs/issues/1167

I have poked libqpsd to release a Qt6 version and packaged https://aur.archlinux.org/packages/libqpsd-qt6, but it seems that to use -DUSE_SYSTEM_LIBQPSD=ON there's some work to be done.

nomacs is expecting the cmake files to be named qpsd instead of libqpsd (frankly I have near zero experience with cmake):

echo 'file(GLOB LIBQPSD_HEADERS "/usr/include/libqpsd/*.h")' > "${pkgdir}/usr/lib/cmake/qpsd/qpsdConfig.cmake"
echo 'set(LIBQPSD_FOUND TRUE)' >> "${pkgdir}/usr/lib/cmake/qpsd/qpsdConfig.cmake"

But it still fails when building, presumably due to a missing .so link OR that the .cpp files are a hard necessity(I doubt it)?

[ 98%] Linking CXX executable nomacs
/usr/bin/ld: libnomacsCore.so.3.19.1: undefined reference to `QPsdPlugin::capabilities(QIODevice*, QByteArray const&) const'
/usr/bin/ld: libnomacsCore.so.3.19.1: undefined reference to `QPsdHandler::~QPsdHandler()'

If someone wants to pick it up to get nomacs closer to building with the system libraries, feel free to, patches to AUR/libqpsd-qt6 welcome if necessary.