5 files changed, 144 insertions, 0 deletions
diff --git a/README.md b/README.md
index 8c78c13..2a50edd 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,7 @@ Each package lives in its own top-level subfolder:
 | opencode-bin | ✅ | not tested | ❌ | 1.18.2 | 1.18.3 |
 | claude-code-bin | ✅ | not tested | ❌ | 2.1.211 | 2.1.212 |
 | kvantum-qt6 | ✅ | not tested | ❌ | 1.1.8 | 1.1.8 |
+| kvantum-qt5 | ✅ | not tested | ✅ [kvantum-qt5](https://slackbuilds.org/repository/15.0/system/kvantum-qt5/) | 1.1.8 | 1.1.8 |
 | gitleaks | ✅ | not tested | ❌ | 8.30.1 | 8.30.1 |
 | mutagen | ✅ | not tested | ✅ [mutagen](https://slackbuilds.org/repository/15.0/development/mutagen/) | 1.48.1 | 1.48.1 |
 | solvespace | ✅ | not tested | ❌ | 3.2 | 3.2 |
@@ -62,6 +63,11 @@ Each package lives in its own top-level subfolder:
 | claude-desktop-bin | ✅ | ✅ | ❌ | 1.21459.3 | 1.22209.0 |
 | hyprsunset-qt | ✅ | not tested | ❌ | 0.1.1 | 0.1.1 |
 
+> **Note on `kvantum-qt5`:** the official SBo build lags several releases behind
+> upstream (1.1.2 vs 1.1.8), so this repo ships an updated build. It provides the
+> Qt5 style plugin only (`libkvantum.so`); the kvantummanager GUI and bundled
+> themes come from the `kvantum-qt6` package, which upstream now builds Qt6-only.
+
 ---
 
 ## Usage
diff --git a/kvantum-qt5/README b/kvantum-qt5/README
new file mode 100644
index 0000000..e74f6e5
--- /dev/null
+++ b/kvantum-qt5/README
@@ -0,0 +1,7 @@
+Kvantum is an SVG-based theme engine for Qt, tuned to KDE and LXQt,
+with an emphasis on elegance, usability and practicality.
+
+This package builds the Qt5 style plugin only. The kvantummanager
+GUI and bundled themes are provided by the kvantum-qt6 package.
+
+By !red
diff --git a/kvantum-qt5/kvantum-qt5.SlackBuild b/kvantum-qt5/kvantum-qt5.SlackBuild
new file mode 100644
index 0000000..bbf5762
--- /dev/null
+++ b/kvantum-qt5/kvantum-qt5.SlackBuild
@@ -0,0 +1,102 @@
+#!/bin/bash
+
+# Slackware build script for Kvantum for Qt5
+
+# Copyright 2026 danix <danix@danix.xyz>
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=kvantum-qt5
+VERSION=${VERSION:-1.1.8}
+SRCNAM=Kvantum
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+else
+  SLKCFLAGS="-O2"
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar -xvf $CWD/$SRCNAM-$VERSION.tar.xz
+mv $SRCNAM-$VERSION/$SRCNAM $PRGNAM-$VERSION
+
+cd $PRGNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+mkdir -p build
+cd build
+cmake .. \
+    -DENABLE_QT5=ON \
+    -DWITHOUT_KF=ON \
+    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_INSTALL_PREFIX=/usr \
+    -DCMAKE_BUILD_TYPE=Release
+
+make
+make install DESTDIR=$PKG
+cd ..
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a ChangeLog README.md \
+  $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
diff --git a/kvantum-qt5/kvantum-qt5.info b/kvantum-qt5/kvantum-qt5.info
new file mode 100644
index 0000000..5c8b6c5
--- /dev/null
+++ b/kvantum-qt5/kvantum-qt5.info
@@ -0,0 +1,10 @@
+PRGNAM="kvantum-qt5"
+VERSION="1.1.8"
+HOMEPAGE="https://github.com/tsujan/Kvantum"
+DOWNLOAD="https://github.com/tsujan/Kvantum/releases/download/V1.1.8/Kvantum-1.1.8.tar.xz"
+MD5SUM="7f47cef7884acc748927411df742d033"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="danix"
+EMAIL="danix@danix.xyz"
diff --git a/kvantum-qt5/slack-desc b/kvantum-qt5/slack-desc
new file mode 100644
index 0000000..403ae80
--- /dev/null
+++ b/kvantum-qt5/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+           |-----handy-ruler------------------------------------------------------|
+kvantum-qt5: kvantum-qt5 (SVG-based theme engine for Qt5, KDE and LXQt)
+kvantum-qt5:
+kvantum-qt5: Kvantum is an SVG-based theme engine for Qt, tuned to KDE and LXQt,
+kvantum-qt5: with an emphasis on elegance, usability and practicality.
+kvantum-qt5:
+kvantum-qt5:
+kvantum-qt5: Homepage: https://github.com/tsujan/Kvantum
+kvantum-qt5:
+kvantum-qt5: This is the Qt5 style plugin only. The kvantummanager GUI
+kvantum-qt5: and bundled themes are provided by the kvantum-qt6 package.
+kvantum-qt5: