diff --git a/build-aux/update-cmake-version.sh b/build-aux/update-cmake-version.sh
new file mode 100755
--- /dev/null
+++ b/build-aux/update-cmake-version.sh
@@ -0,0 +1,46 @@
+#! /bin/sh
+# SPDX-FileCopyrightText: 2024 g10 Code GmbH
+#
+# This file is free software; as a special exception the author gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# This script updates the version informaion in the CMakeLists.txt to match
+# the one from configure.ac
+#
+# Usage:
+# ./build-aux/update-cmake-version.sh
+
+configure_ac="configure.ac"
+
+version_major=`grep "mym4_major]" "$configure_ac" | sed -e "s/m4_define(\[mym4_major\], \[\([0-9]*\)\])/\1/g"`
+version_minor=`grep "mym4_minor]" "$configure_ac" | sed -e "s/m4_define(\[mym4_minor\], \[\([0-9]*\)\])/\1/g"`
+version_micro=`grep "mym4_micro]" "$configure_ac" | sed -e "s/m4_define(\[mym4_micro\], \[\([0-9]*\)\])/\1/g"`
+
+gpgmepp_lt_current=`grep "LIBGPGMEPP_LT_CURRENT=" "$configure_ac" | sed -e "s/LIBGPGMEPP_LT_CURRENT=\([0-9]*\)/\1/g"`
+gpgmepp_lt_age=`grep "LIBGPGMEPP_LT_AGE=" "$configure_ac" | sed -e "s/LIBGPGMEPP_LT_AGE=\([0-9]*\)/\1/g"`
+gpgmepp_lt_revision=`grep "LIBGPGMEPP_LT_REVISION=" "$configure_ac" | sed -e "s/LIBGPGMEPP_LT_REVISION=\([0-9]*\)/\1/g"`
+
+sed -e "s/set(LIBGPGMEPP_MAJOR [0-9]*)/set(LIBGPGMEPP_MAJOR $version_major)/g" \
+    -e "s/set(LIBGPGMEPP_MINOR [0-9]*)/set(LIBGPGMEPP_MINOR $version_minor)/g" \
+    -e "s/set(LIBGPGMEPP_MICRO [0-9]*)/set(LIBGPGMEPP_MICRO $version_micro)/g" \
+    -e "s/set(LIBGPGMEPP_LT_CURRENT [0-9]*)/set(LIBGPGMEPP_LT_CURRENT $gpgmepp_lt_current)/g" \
+    -e "s/set(LIBGPGMEPP_LT_AGE [0-9]*)/set(LIBGPGMEPP_LT_AGE $gpgmepp_lt_age)/g" \
+    -e "s/set(LIBGPGMEPP_LT_REVISION [0-9]*)/set(LIBGPGMEPP_LT_REVISION $gpgmepp_lt_revision)/g" \
+    -i lang/cpp/CMakeLists.txt
+
+qgpgme_lt_current=`grep "LIBQGPGME_LT_CURRENT=" "$configure_ac" | sed -e "s/LIBQGPGME_LT_CURRENT=\([0-9]*\)/\1/g"`
+qgpgme_lt_age=`grep "LIBQGPGME_LT_AGE=" "$configure_ac" | sed -e "s/LIBQGPGME_LT_AGE=\([0-9]*\)/\1/g"`
+qgpgme_lt_revision=`grep "LIBQGPGME_LT_REVISION=" "$configure_ac" | sed -e "s/LIBQGPGME_LT_REVISION=\([0-9]*\)/\1/g"`
+
+sed -e "s/set(LIBQGPGME_MAJOR [0-9]*)/set(LIBQGPGME_MAJOR $version_major)/g" \
+    -e "s/set(LIBQGPGME_MINOR [0-9]*)/set(LIBQGPGME_MINOR $version_minor)/g" \
+    -e "s/set(LIBQGPGME_MICRO [0-9]*)/set(LIBQGPGME_MICRO $version_micro)/g" \
+    -e "s/set(LIBQGPGME_LT_CURRENT [0-9]*)/set(LIBQGPGME_LT_CURRENT $qgpgme_lt_current)/g" \
+    -e "s/set(LIBQGPGME_LT_AGE [0-9]*)/set(LIBQGPGME_LT_AGE $qgpgme_lt_age)/g" \
+    -e "s/set(LIBQGPGME_LT_REVISION [0-9]*)/set(LIBQGPGME_LT_REVISION $qgpgme_lt_revision)/g" \
+    -i lang/qt/CMakeLists.txt
\ No newline at end of file
diff --git a/lang/cpp/CMakeLists.txt b/lang/cpp/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/lang/cpp/CMakeLists.txt
@@ -0,0 +1,34 @@
+# SPDX-FileCopyrightText: 2023 g10 Code GmbH
+# SPDX-FileContributor: Carl Schwan <carl.schwan@gnupg.com>
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.20)
+
+include(CMakeDependentOption)
+include(CMakePackageConfigHelpers)
+include(CheckIncludeFile)
+include(CheckFunctionExists)
+include(GNUInstallDirs)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKECONFIG_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/")
+set(ENV{PKG_CONFIG_PATH} "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig/")
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GPGME REQUIRED IMPORTED_TARGET gpgme)
+pkg_check_modules(GPGERROR REQUIRED IMPORTED_TARGET gpg-error)
+
+message("${CMAKE_PREFIX_PATH}/lib/pkgconfig/ ${GPGME_INCLUDEDIR}")
+
+set(LIBGPGMEPP_MAJOR 1)
+set(LIBGPGMEPP_MINOR 23)
+set(LIBGPGMEPP_MICRO 3)
+set(LIBGPGMEPP_LT_CURRENT 26)
+set(LIBGPGMEPP_LT_AGE 20)
+set(LIBGPGMEPP_LT_REVISION 1)
+set(LIBGPGMEPP_VERSION_FULL ${LIBGPGMEPP_MAJOR}.${LIBGPGMEPP_MINOR}.${LIBGPGMEPP_MICRO})
+
+project(Gpgmepp VERSION ${LIBGPGMEPP_VERSION_FULL})
+
+add_subdirectory(src)
diff --git a/lang/cpp/src/CMakeLists.txt b/lang/cpp/src/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/lang/cpp/src/CMakeLists.txt
@@ -0,0 +1,144 @@
+# SPDX-FileCopyrightText: 2021 Daniel Vrátil <dvratil@kde.org>
+# SPDX-FileCopyrightText: 2023 g10 Code GmbH
+# SPDX-FileContributor: Carl Schwan <carl.schwan@gnupg.com>
+# SPDX-License-Identifier: BSD-3-Clause
+
+add_library(Gpgmepp SHARED)
+
+target_sources(Gpgmepp PRIVATE
+    callbacks.cpp
+    configuration.cpp
+    context.cpp
+    data.cpp
+    decryptionresult.cpp
+    defaultassuantransaction.cpp
+    editinteractor.cpp
+    encryptionresult.cpp
+    engineinfo.cpp
+    eventloopinteractor.cpp
+    exception.cpp
+    gpgaddexistingsubkeyeditinteractor.cpp
+    gpgadduserideditinteractor.cpp
+    gpgagentgetinfoassuantransaction.cpp
+    gpggencardkeyinteractor.cpp
+    gpgrevokekeyeditinteractor.cpp
+    gpgsetexpirytimeeditinteractor.cpp
+    gpgsetownertrusteditinteractor.cpp
+    gpgsignkeyeditinteractor.cpp
+    importresult.cpp
+    key.cpp
+    keygenerationresult.cpp
+    keylistresult.cpp
+    scdgetinfoassuantransaction.cpp
+    signingresult.cpp
+    statusconsumerassuantransaction.cpp
+    swdbresult.cpp
+    tofuinfo.cpp
+    trustitem.cpp
+    util.cpp
+    verificationresult.cpp
+    vfsmountresult.cpp
+)
+
+set(gpgmepp_HEADERS
+    callbacks.h
+    configuration.h
+    context.h
+    data.h
+    decryptionresult.h
+    defaultassuantransaction.h
+    editinteractor.h
+    encryptionresult.h
+    engineinfo.h
+    error.h
+    eventloopinteractor.h
+    exception.h
+    global.h
+    gpgaddexistingsubkeyeditinteractor.h
+    gpgadduserideditinteractor.h
+    gpgagentgetinfoassuantransaction.h
+    gpggencardkeyinteractor.h
+    gpgmefw.h
+    gpgmepp_export.h
+    gpgrevokekeyeditinteractor.h
+    gpgsetexpirytimeeditinteractor.h
+    gpgsetownertrusteditinteractor.h
+    gpgsignkeyeditinteractor.h
+    importresult.h
+    key.h
+    keygenerationresult.h
+    keylistresult.h
+    notation.h
+    result.h
+    scdgetinfoassuantransaction.h
+    signingresult.h
+    statusconsumerassuantransaction.h
+    swdbresult.h
+    tofuinfo.h
+    trustitem.h
+    util.h
+    verificationresult.h
+    vfsmountresult.h
+)
+
+set(gpgmepp_interface_HEADERS
+    interfaces/assuantransaction.h interfaces/dataprovider.h
+    interfaces/passphraseprovider.h interfaces/progressprovider.h
+)
+
+add_definitions(-DBUILDING_GPGMEPP)
+
+target_include_directories(Gpgmepp
+    INTERFACE
+        $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/gpgme++>
+        $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+    PUBLIC
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
+        $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/src>
+    PRIVATE
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+)
+
+target_link_libraries(Gpgmepp PUBLIC PkgConfig::GPGME)
+
+math(EXPR MAJOR "${LIBGPGMEPP_LT_CURRENT}-${LIBGPGMEPP_LT_AGE}")
+
+set_target_properties(Gpgmepp PROPERTIES
+    VERSION "${MAJOR}.${LIBGPGMEPP_LT_AGE}.${LIBGPGMEPP_LT_REVISION}"
+    SOVERSION ${MAJOR}
+)
+
+configure_package_config_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/GpgmeppConfigCmake.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/GpgmeppConfig.cmake"
+    INSTALL_DESTINATION ${GPGME_LIBRARY_DIRS}/cmake/Gpgmepp
+)
+
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/GpgmeppConfigVersion.cmake.in
+               ${CMAKE_CURRENT_BINARY_DIR}/GpgmeppConfigVersion.cmake @ONLY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/gpgmepp_version.h.in
+               ${CMAKE_CURRENT_BINARY_DIR}/gpgmepp_version.h)
+
+install(TARGETS Gpgmepp
+    DESTINATION ${GPGME_LIBRARY_DIRS}
+    EXPORT GpgmeppTargets
+)
+install(EXPORT GpgmeppTargets
+    DESTINATION "${GPGME_LIBRARY_DIRS}/cmake/Gpgmepp"
+    FILE GpgmeppConfigTargets.cmake
+)
+
+install(FILES ${gpgmepp_HEADERS}
+        DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/gpgme++)
+
+install(FILES ${gpgmepp_interface_HEADERS}
+        DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/gpgme++/interfaces)
+
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/gpgmepp_version.h
+              ${CMAKE_CURRENT_SOURCE_DIR}/gpgmepp_export.h
+        DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/gpgme++)
+
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/GpgmeppConfigVersion.cmake"
+              "${CMAKE_CURRENT_BINARY_DIR}/GpgmeppConfig.cmake"
+        DESTINATION ${GPGME_LIBRARY_DIRS}/cmake/Gpgmepp)
diff --git a/lang/cpp/src/GpgmeppConfigCmake.cmake.in b/lang/cpp/src/GpgmeppConfigCmake.cmake.in
new file mode 100644
--- /dev/null
+++ b/lang/cpp/src/GpgmeppConfigCmake.cmake.in
@@ -0,0 +1,8 @@
+@PACKAGE_INIT@
+include(CMakeFindDependencyMacro)
+
+set(ENV{PKG_CONFIG_PATH} "${CMAKE_PREFIX_PATH}/lib/pkgconfig/")
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GPGME REQUIRED IMPORTED_TARGET gpgme)
+
+include("${CMAKE_CURRENT_LIST_DIR}/GpgmeppConfigTargets.cmake")
diff --git a/lang/cpp/src/GpgmeppConfigVersion.cmake.in b/lang/cpp/src/GpgmeppConfigVersion.cmake.in
--- a/lang/cpp/src/GpgmeppConfigVersion.cmake.in
+++ b/lang/cpp/src/GpgmeppConfigVersion.cmake.in
@@ -19,7 +19,7 @@
 # 02111-1307, USA
 
 # based on a generated file from cmake.
-set(PACKAGE_VERSION "@VERSION_MAJOR@.@VERSION_MINOR@.@VERSION_MICRO@")
+set(PACKAGE_VERSION "@LIBGPGMEPP_MAJOR@.@LIBGPGMEPP_MINOR@.@LIBGPGMEPP_MICRO@")
 
 if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}" )
   set(PACKAGE_VERSION_COMPATIBLE FALSE)
diff --git a/lang/qt/CMakeLists.txt b/lang/qt/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/lang/qt/CMakeLists.txt
@@ -0,0 +1,48 @@
+# SPDX-FileCopyrightText: 2023 g10 Code GmbH
+# SPDX-FileContributor: Carl Schwan <carl.schwan@gnupg.com>
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.20)
+
+include(CMakeDependentOption)
+include(CMakePackageConfigHelpers)
+include(CheckIncludeFile)
+include(CheckFunctionExists)
+include(GNUInstallDirs)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKECONFIG_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/")
+set(ENV{PKG_CONFIG_PATH} "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig/")
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GPGME REQUIRED IMPORTED_TARGET gpgme)
+pkg_check_modules(GPGERROR REQUIRED IMPORTED_TARGET gpg-error)
+
+message("${CMAKE_PREFIX_PATH}/lib/pkgconfig/ ${GPGME_INCLUDEDIR}")
+
+# Update by running autogen.sh
+set(LIBQGPGME_MAJOR 1)
+set(LIBQGPGME_MINOR 23)
+set(LIBQGPGME_MICRO 3)
+set(LIBQGPGME_LT_CURRENT 20)
+set(LIBQGPGME_LT_AGE 5)
+set(LIBQGPGME_LT_REVISION 1)
+set(LIBQGPGME_VERSION_FULL ${LIBQGPGME_MAJOR}.${LIBQGPGME_MINOR}.${LIBQGPGME_MICRO})
+
+project(QGpgME VERSION ${LIBQGPGME_VERSION_FULL})
+
+option(QGPGME_BUILD_QT5 "Build for Qt5" ON)
+option(QGPGME_BUILD_QT6 "Build for Qt6" ON)
+
+if(QGPGME_BUILD_QT5)
+    set(version "")
+    set(QT_MAJOR_VERSION 5)
+    add_subdirectory(src)
+endif()
+
+if(QGPGME_BUILD_QT6)
+    set(version "6")
+    set(QT_MAJOR_VERSION 6)
+    add_subdirectory(src src6)
+endif()
diff --git a/lang/qt/src/CMakeLists.txt b/lang/qt/src/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/lang/qt/src/CMakeLists.txt
@@ -0,0 +1,301 @@
+# SPDX-FileCopyrightText: 2021 Daniel Vrátil <dvratil@kde.org>
+# SPDX-FileCopyrightText: 2023 g10 Code GmbH
+# SPDX-FileContributor: Carl Schwan <carl.schwan@gnupg.com>
+# SPDX-License-Identifier: BSD-3-Clause
+
+find_package(Qt${QT_MAJOR_VERSION} REQUIRED COMPONENTS Core)
+set(GPGME_CONFIG_AVAIL_LANG "${GPGME_CONFIG_AVAIL_LANG} qt")
+find_package(Gpgmepp ${GPGME_REQUIRED_VERSION} CONFIG REQUIRED)
+
+if (${QT_MAJOR_VERSION} EQUAL "6")
+    find_package(Qt${QT_MAJOR_VERSION} REQUIRED COMPONENTS CoreTools)
+    get_property(QtCore_MOC_EXECUTABLE TARGET Qt6::moc PROPERTY LOCATION)
+    set(config_suffix Qt6)
+endif()
+
+add_library(QGpgme${config_suffix} SHARED)
+
+target_sources(QGpgme${config_suffix} PRIVATE
+    changeexpiryjob.cpp
+    cleaner.cpp
+    cryptoconfig.cpp
+    dataprovider.cpp
+    debug.cpp
+    decryptverifyjob.cpp
+    decryptverifyarchivejob.cpp
+    defaultkeygenerationjob.cpp
+    dn.cpp
+    encryptarchivejob.cpp
+    encryptjob.cpp
+    filelistdataprovider.cpp
+    importjob.cpp
+    job.cpp
+    listallkeysjob.cpp
+    multideletejob.cpp
+    qgpgme_debug.cpp
+    qgpgmeaddexistingsubkeyjob.cpp
+    qgpgmeadduseridjob.cpp
+    qgpgmebackend.cpp
+    qgpgmechangeexpiryjob.cpp
+    qgpgmechangeownertrustjob.cpp
+    qgpgmechangepasswdjob.cpp
+    qgpgmedecryptjob.cpp
+    qgpgmedecryptverifyarchivejob.cpp
+    qgpgmedecryptverifyjob.cpp
+    qgpgmedeletejob.cpp
+    qgpgmedownloadjob.cpp
+    qgpgmeencryptarchivejob.cpp
+    qgpgmeencryptjob.cpp
+    qgpgmeexportjob.cpp
+    qgpgmegpgcardjob.cpp
+    qgpgmeimportfromkeyserverjob.cpp
+    qgpgmeimportjob.cpp
+    qgpgmekeyformailboxjob.cpp
+    qgpgmekeygenerationjob.cpp
+    qgpgmekeylistjob.cpp
+    qgpgmelistallkeysjob.cpp
+    qgpgmenewcryptoconfig.cpp
+    qgpgmequickjob.cpp
+    qgpgmereceivekeysjob.cpp
+    qgpgmerefreshsmimekeysjob.cpp
+    qgpgmerevokekeyjob.cpp
+    qgpgmesetprimaryuseridjob.cpp
+    qgpgmesignarchivejob.cpp
+    qgpgmesignencryptarchivejob.cpp
+    qgpgmesignencryptjob.cpp
+    qgpgmesignjob.cpp
+    qgpgmesignkeyjob.cpp
+    qgpgmetofupolicyjob.cpp
+    qgpgmeverifydetachedjob.cpp
+    qgpgmeverifyopaquejob.cpp
+    qgpgmewkdlookupjob.cpp
+    qgpgmewkdrefreshjob.cpp
+    qgpgmewkspublishjob.cpp
+    signarchivejob.cpp
+    signencryptarchivejob.cpp
+    signencryptjob.cpp
+    signjob.cpp
+    threadedjobmixin.cpp
+    util.cpp
+    verifydetachedjob.cpp
+    verifyopaquejob.cpp
+    wkdlookupresult.cpp
+    wkdrefreshjob.cpp
+)
+
+set(qgpgme_HEADERS
+    abstractimportjob.h
+    addexistingsubkeyjob.h
+    adduseridjob.h
+    changeexpiryjob.h
+    changeownertrustjob.h
+    changepasswdjob.h
+    cryptoconfig.h
+    cleaner.h
+    dataprovider.h
+    debug.h
+    decryptjob.h
+    decryptverifyarchivejob.h
+    decryptverifyjob.h
+    defaultkeygenerationjob.h
+    deletejob.h
+    dn.h
+    downloadjob.h
+    encryptarchivejob.h
+    encryptjob.h
+    exportjob.h
+    filelistdataprovider.h
+    gpgcardjob.h
+    hierarchicalkeylistjob.h
+    importfromkeyserverjob.h
+    importjob.h
+    job.h
+    keyformailboxjob.h
+    keygenerationjob.h
+    keylistjob.h
+    listallkeysjob.h
+    multideletejob.h
+    protocol.h
+    qgpgme_debug.h
+    qgpgme_export.h
+    qgpgmeaddexistingsubkeyjob.h
+    qgpgmeadduseridjob.h
+    qgpgmebackend.h
+    qgpgmechangeexpiryjob.h
+    qgpgmechangeownertrustjob.h
+    qgpgmechangepasswdjob.h
+    qgpgmedecryptjob.h
+    qgpgmedecryptverifyarchivejob.h
+    qgpgmedecryptverifyjob.h
+    qgpgmedeletejob.h
+    qgpgmedownloadjob.h
+    qgpgmeencryptarchivejob.h
+    qgpgmeencryptjob.h
+    qgpgmeexportjob.h
+    qgpgmegpgcardjob.h
+    qgpgmeimportfromkeyserverjob.h
+    qgpgmeimportjob.h
+    qgpgmekeyformailboxjob.h
+    qgpgmekeygenerationjob.h
+    qgpgmekeylistjob.h
+    qgpgmelistallkeysjob.h
+    qgpgmenewcryptoconfig.h
+    qgpgmequickjob.h
+    qgpgmereceivekeysjob.h
+    qgpgmerefreshsmimekeysjob.h
+    qgpgmerevokekeyjob.h
+    qgpgmesetprimaryuseridjob.h
+    qgpgmesignarchivejob.h
+    qgpgmesignencryptarchivejob.h
+    qgpgmesignencryptjob.h
+    qgpgmesignjob.h
+    qgpgmesignkeyjob.h
+    qgpgmetofupolicyjob.h
+    qgpgmeverifydetachedjob.h
+    qgpgmeverifyopaquejob.h
+    qgpgmewkdlookupjob.h
+    qgpgmewkdrefreshjob.h
+    qgpgmewkspublishjob.h
+    quickjob.h
+    receivekeysjob.h
+    refreshkeysjob.h
+    revokekeyjob.h
+    setprimaryuseridjob.h
+    signarchivejob.h
+    signencryptarchivejob.h
+    signencryptjob.h
+    signjob.h
+    signkeyjob.h
+    specialjob.h
+    threadedjobmixin.h
+    tofupolicyjob.h
+    util.h
+    verifydetachedjob.h
+    verifyopaquejob.h
+    wkdlookupjob.h
+    wkdlookupresult.h
+    wkdrefreshjob.h
+    wkspublishjob.h
+)
+
+set(qgpgme_CAMELCASE_HEADERS
+    AddUserIDJob
+    AbstractImportJob
+    ChangeExpiryJob
+    ChangeOwnerTrustJob
+    ChangePasswdJob
+    Cleaner
+    DataProvider
+    DecryptJob
+    DecryptVerifyJob
+    DN
+    DownloadJob
+    EncryptJob
+    ExportJob
+    Job
+    MultiDeleteJob
+    Protocol
+    QGpgMENewCryptoConfig
+    QuickJob
+    SpecialJob
+    SignJob
+    SignKeyJob
+    SignEncryptJob
+    VerifyOpaqueJob
+    RefreshKeysJob
+    CryptoConfig
+    DeleteJob
+    ImportFromKeyserverJob
+    ImportJob
+    KeyGenerationJob
+    KeyListJob
+    ListAllKeysJob
+    VerifyDetachedJob
+    KeyForMailboxJob
+    DefaultKeyGenerationJob
+    WKSPublishJob
+    WKDRefreshJob
+    TofuPolicyJob
+)
+
+set(qgpgme_MOC)
+foreach(header ${qgpgme_HEADERS})
+    get_filename_component(absolute_path ${header} ABSOLUTE)
+    get_filename_component(file_name ${header} NAME_WLE)
+
+    if (${QT_MAJOR_VERSION} EQUAL "6")
+        add_custom_command(
+            OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${file_name}.moc
+            COMMAND ${QtCore_MOC_EXECUTABLE} ${absolute_path} -o ${CMAKE_CURRENT_BINARY_DIR}/${file_name}.moc
+        )
+    else()
+        add_custom_command(
+            OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${file_name}.moc
+            COMMAND ${QT_MOC_EXECUTABLE} ${absolute_path} -o ${CMAKE_CURRENT_BINARY_DIR}/${file_name}.moc
+        )
+    endif()
+
+    list(APPEND qgpgme_MOC "${CMAKE_CURRENT_BINARY_DIR}/${file_name}.moc")
+endforeach()
+target_sources(QGpgme${config_suffix} PRIVATE ${qgpgme_MOC})
+
+if ((${QT_MAJOR_VERSION} EQUAL 5) OR (NOT ${QGPGME_BUILD_QT5}))
+    foreach(header ${qgpgme_CAMELCASE_HEADERS})
+        string(TOLOWER ${header} header_lc)
+        file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/QGpgME/${header} "#include \"qgpgme/${header_lc}.h\"")
+        list(APPEND qgpgme_HEADERS ${header_lc}.h)
+    endforeach()
+endif()
+
+add_definitions(-DBUILDING_QGPGME)
+
+target_link_libraries(QGpgme${config_suffix} PUBLIC Gpgmepp PkgConfig::GPGERROR Qt${version}::Core)
+target_include_directories(QGpgme${config_suffix}
+    INTERFACE
+        $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/qgpgme>
+        $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+    PUBLIC
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+    PRIVATE
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
+)
+
+math(EXPR MAJOR "${LIBQGPGME_LT_CURRENT} - ${LIBQGPGME_LT_AGE}")
+set_target_properties(QGpgme${config_suffix} PROPERTIES
+    VERSION "${MAJOR}.${LIBQGPGME_LT_AGE}.${LIBQGPGME_LT_REVISION}"
+    SOVERSION "${MAJOR}"
+)
+
+configure_package_config_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/QGpgmeConfigCmake.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/QGpgme${config_suffix}Config.cmake"
+    INSTALL_DESTINATION ${GPGME_LIBRARY_DIRS}/cmake/QGpgme${config_suffix}
+)
+
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/QGpgme${config_suffix}ConfigVersion.cmake.in
+               ${CMAKE_CURRENT_BINARY_DIR}/QGpgme${config_suffix}ConfigVersion.cmake @ONLY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/qgpgme_version.h.in
+               ${CMAKE_CURRENT_BINARY_DIR}/qgpgme_version.h)
+
+install(TARGETS QGpgme${config_suffix}
+    DESTINATION ${GPGME_LIBRARY_DIRS}
+    EXPORT QGpgme${config_suffix}Targets
+)
+install(EXPORT QGpgme${config_suffix}Targets
+    DESTINATION "${GPGME_LIBRARY_DIRS}/cmake/QGpgme${config_suffix}"
+    FILE QGpgme${config_suffix}ConfigTargets.cmake
+)
+
+if ((${QT_MAJOR_VERSION} EQUAL 5) OR (NOT ${QGPGME_BUILD_QT5}))
+    # Install headers only once
+    install(FILES ${qgpgme_HEADERS}
+                  ${CMAKE_CURRENT_BINARY_DIR}/qgpgme_version.h
+                  ${CMAKE_CURRENT_SOURCE_DIR}/qgpgme_export.h
+            DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/qgpgme)
+    install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/QGpgME
+            DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+endif()
+
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/QGpgme${config_suffix}ConfigVersion.cmake
+              ${CMAKE_CURRENT_BINARY_DIR}/QGpgme${config_suffix}Config.cmake
+        DESTINATION ${GPGME_LIBRARY_DIRS}/cmake/QGpgme${config_suffix})
diff --git a/lang/qt/src/QGpgmeConfigCmake.cmake.in b/lang/qt/src/QGpgmeConfigCmake.cmake.in
new file mode 100644
--- /dev/null
+++ b/lang/qt/src/QGpgmeConfigCmake.cmake.in
@@ -0,0 +1,7 @@
+@PACKAGE_INIT@
+include(CMakeFindDependencyMacro)
+
+find_package(Gpgmepp REQUIRED)
+pkg_check_modules(GPGERROR REQUIRED IMPORTED_TARGET gpg-error)
+
+include("${CMAKE_CURRENT_LIST_DIR}/QGpgme@config_suffix@ConfigTargets.cmake")
diff --git a/lang/qt/src/QGpgmeConfigVersion.cmake.in b/lang/qt/src/QGpgmeConfigVersion.cmake.in
--- a/lang/qt/src/QGpgmeConfigVersion.cmake.in
+++ b/lang/qt/src/QGpgmeConfigVersion.cmake.in
@@ -19,7 +19,7 @@
 # 02111-1307, USA
 
 # based on a generated file from cmake.
-set(PACKAGE_VERSION "@VERSION_MAJOR@.@VERSION_MINOR@.@VERSION_MICRO@")
+set(PACKAGE_VERSION "@LIBQGPGME_MAJOR@.@LIBQGPGME_MINOR@.@LIBQGPGME_MICRO@")
 
 if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}" )
   set(PACKAGE_VERSION_COMPATIBLE FALSE)
diff --git a/lang/qt/src/QGpgmeQt6ConfigVersion.cmake.in b/lang/qt/src/QGpgmeQt6ConfigVersion.cmake.in
--- a/lang/qt/src/QGpgmeQt6ConfigVersion.cmake.in
+++ b/lang/qt/src/QGpgmeQt6ConfigVersion.cmake.in
@@ -19,7 +19,7 @@
 # 02111-1307, USA
 
 # based on a generated file from cmake.
-set(PACKAGE_VERSION "@VERSION_MAJOR@.@VERSION_MINOR@.@VERSION_MICRO@")
+set(PACKAGE_VERSION "@LIBQGPGME_MAJOR@.@LIBQGPGME_MINOR@.@LIBQGPGME_MICRO@")
 
 if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}" )
   set(PACKAGE_VERSION_COMPATIBLE FALSE)