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# Maintainer: Kevin Brodsky <corax26 'at' gmail 'dot' com>
pkgname=xnviewmp-system-libs
_pkgname=xnviewmp
pkgver=0.94.2
srcrel=1 # Incremented when there is a new release for the same version number
pkgrel=2
pkgdesc="An efficient multimedia viewer, browser and converter (using system libraries)."
url="http://www.xnview.com/en/xnviewmp/"
arch=('x86_64')
license=('custom')
depends=(
# Main Qt dependencies
'qt5-multimedia' 'qt5-svg' 'qt5-webkit' 'qt5-x11extras'
# Needed since 0.91: https://newsgroup.xnview.com/viewtopic.php?f=82&t=37907
'qtav'
# Plugin libs
'libwebp' 'openjpeg2' 'openexr'
)
optdepends=('glib2: support for moving files to trash')
conflicts=('xnviewmp')
source=("XnViewMP-linux-x64_${pkgver}-rel${srcrel}.tgz::http://download.xnview.com/XnViewMP-linux-x64.tgz"
'xnview.sh'
'xnviewmp.desktop'
'qt5_std_fun_forwarder.S'
'qt5_std_fun_forwarder.lds')
md5sums=('d6b931db8cf42aefe770581afb0184ad'
'54c5ea6508625ad44a23b9a204799264'
'24f44d5a881b94daf48775213a57e4ec'
'df94e031306ac22f7f19d38bf3023c1a'
'7fc3b01ef6eb321c5ecba75099e08d33')
# There is a lot of useless files in the archive, only install those from that
# list.
installed_files_dirs=(
AddOn
country.txt
language
license.txt
PrintPresets.txt
ResizePresets.txt
UI
WhatsNew.txt
XnView
xnview_2.png
xnview.png
)
executable_files=(
AddOn/exiftool
XnView
)
build() {
# This is massive hack to work around an incompatibility with the system Qt5
# libraries. Starting with 0.93.1, the dynamic linker fails to start XnView,
# complaining that:
# symbol _ZNSt20bad_array_new_lengthD1Ev version Qt_5 not defined in file libQt5Gui.so.5 with link time reference
# (and other functions related to the std::bad_array_new_length class).
#
# It seems that the Qt5 libraries shipped in the archive changed in 0.93.1,
# and they now declare these functions, but our system libs on Arch don't!
# Since these are STL functions, the workaround is to manually define these
# functions in a tiny shared library, and implement them by calling the STL
# functions in libstdc++. This is frankly horrible, but on the bright side,
# these functions should never be called anyway (if an
# std::bad_array_new_length exception is thrown, it will most likely make
# XnView crash).
gcc -fPIC -shared -lstdc++ \
-Wl,--version-script="${srcdir}/qt5_std_fun_forwarder.lds" \
-o "${srcdir}/qt5_std_fun_forwarder.so" \
"${srcdir}/qt5_std_fun_forwarder.S"
}
package() {
cd "${srcdir}/XnView"
local pkg_opt_dir=${pkgdir}/opt/${_pkgname}
install -d -m755 "${pkg_opt_dir}"
# The permissions set in the archive are unreliable and excessive (too many
# executable files). Instead of copying them, we chmod the files that
# actually need to be executable.
cp -r --no-preserve=mode "${installed_files_dirs[@]}" "${pkg_opt_dir}"
for file in "${executable_files[@]}"; do
chmod a+x "${pkg_opt_dir}/${file}"
done
# The plugin libs that XnView packages are included as dependencies, but
# XnView will only look for them in the Plugins directory (regardless of the
# linker paths). Create symlinks as needed.
install -d -m755 "${pkg_opt_dir}/Plugins"
ln -s /usr/lib/libwebp.so "${pkg_opt_dir}/Plugins/libwebp.so"
ln -s /usr/lib/libIlmImf.so "${pkg_opt_dir}/Plugins/IlmImf.so"
ln -s /usr/lib/libopenjp2.so "${pkg_opt_dir}/Plugins/openjp2.so"
install -m755 "${srcdir}/xnview.sh" "${pkg_opt_dir}"
# Install our "function forwarder library" (see build()). xnview.sh forces the
# dynamic linker to use it by adding it to LD_PRELOAD.
install -D -m644 "${srcdir}/qt5_std_fun_forwarder.so" -t "${pkg_opt_dir}/lib"
install -d -m755 "${pkgdir}/usr/bin"
ln -s "/opt/${_pkgname}/xnview.sh" "${pkgdir}/usr/bin/${_pkgname}"
install -D -m644 "${srcdir}/${_pkgname}.desktop" -t "${pkgdir}/usr/share/applications/"
install -D -m644 "${srcdir}/XnView/license.txt" "${pkgdir}/usr/share/licenses/${_pkgname}/LICENSE"
}
# vim:set ts=2 sw=2 et:
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