Increase Cmake deps , fix boost problems and initial steps for cpp17 support

Cmake to 3.16
Qt to 5.15.0
KF to 5.82
Boost to 1.71.0
Initial steps for cpp17 support
Fix boost include
Fix boost placeholder

CMakeLists.txt

-cmake_minimum_required(VERSION 3.1 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.16 FATAL_ERROR)
 
 # KDE Application Version, managed by release script
 set (RELEASE_SERVICE_VERSION_MAJOR "21")
@@ -12,9 +12,10 @@ add_definitions(-D'VERSION="${RELEASE_SERVICE_VERSION}"'
                 -D'VERSION_MINOR=${RELEASE_SERVICE_VERSION_MINOR}'
                 -D'VERSION_MICRO=${RELEASE_SERVICE_VERSION_MICRO}')
 
-set (QT_MIN_VERSION "5.14")
-set (KF5_MIN_VERSION "5.72")
+set (QT_MIN_VERSION "5.15.0")
+set (KF5_MIN_VERSION "5.82")
 set (LIBKTORRENT_MIN_VERSION "20.11.70")
+set (Boost_MIN_VERSION "1.71.0")
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${CMAKE_MODULE_PATH})
@@ -29,11 +30,9 @@ include(ECMAddAppIcon)
 include(ECMMarkAsTest)
 include(ECMMarkNonGuiExecutable)
 include(KDEClangFormat)
-if(ECM_VERSION VERSION_GREATER_EQUAL 5.79)
-    include(KDEGitCommitHooks)
-endif()
+include(KDEGitCommitHooks)
 
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED
@@ -66,7 +65,7 @@ find_package(KF5 ${KF5_MIN_VERSION} REQUIRED
 )
 
 find_package(KF5Torrent ${LIBKTORRENT_MIN_VERSION} CONFIG REQUIRED)
-find_package(Boost REQUIRED)
+find_package(Boost ${Boost_MIN_VERSION} REQUIRED)
 
 find_package(KF5TextWidgets ${KF5_MIN_VERSION})
 set_package_properties(KF5TextWidgets
@@ -168,23 +167,27 @@ if(LibKWorkspace_FOUND)
   set(HAVE_LibKWorkspace 1)
 endif()
 
-find_package(Taglib)
-if(TAGLIB_FOUND)
-  set(HAVE_Taglib 1)
-endif()
 #find_package(Qt5 ${QT_MIN_VERSION} OPTIONAL_COMPONENTS Multimedia MultimediaWidgets)
-find_package(Phonon4Qt5)
+
+find_package(Taglib)
 set_package_properties(Taglib
   PROPERTIES
   TYPE OPTIONAL
   PURPOSE "Required for KTorrent's multimedia plugin"
 )
+
+if(TAGLIB_FOUND)
+  set(HAVE_Taglib 1)
+endif()
+
+find_package(Phonon4Qt5)
 set_package_properties(Phonon4Qt5
   PROPERTIES
   TYPE OPTIONAL
   PURPOSE "Required for KTorrent's multimedia plugin"
 )
 
+
 #
 # checks for functions and stuff
 #
@@ -211,9 +214,7 @@ add_definitions(
 set (KTORRENT_DBUS_XML_DIR ${CMAKE_SOURCE_DIR}/dbus_xml)
 set (KTORRENT_PLUGIN_INSTALL_DIR ${PLUGIN_INSTALL_DIR}/ktorrent)
 
-include_directories(
-   ${Boost_INCLUDE_DIR}
-)
+include_directories(Boost::boost)
 
 add_subdirectory(libktcore)
 add_subdirectory(plugins)
@@ -227,8 +228,7 @@ endif()
 file(GLOB_RECURSE ALL_CLANG_FORMAT_SOURCE_FILES *.cpp *.h)
 kde_clang_format(${ALL_CLANG_FORMAT_SOURCE_FILES})
 kde_configure_git_pre_commit_hook(CHECKS CLANG_FORMAT)
-if(ECM_VERSION VERSION_GREATER_EQUAL 5.79)
-    kde_configure_git_pre_commit_hook(CHECKS CLANG_FORMAT)
-endif()
+kde_configure_git_pre_commit_hook(CHECKS CLANG_FORMAT)
+
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)

plugins/bwscheduler/CMakeLists.txt

@@ -23,6 +23,7 @@ kcoreaddons_desktop_to_json(ktorrent_bwscheduler ktorrent_bwscheduler.desktop)
 target_link_libraries(
     ktorrent_bwscheduler
     ktcore
+	Boost::boost
     KF5::Torrent
     KF5::CoreAddons
     KF5::I18n

plugins/bwscheduler/weekview.cpp

@@ -10,7 +10,7 @@
 
 #include "schedule.h"
 #include "weekscene.h"
-#include <boost/bind.hpp>
+#include <boost/bind/bind.hpp>
 #include <util/log.h>
 
 using namespace bt;
@@ -62,7 +62,7 @@ void WeekView::setSchedule(Schedule *s)
     schedule = s;
 
     if (schedule)
-        s->apply(boost::bind(&WeekView::addScheduleItem, this, _1));
+        s->apply(boost::bind(&WeekView::addScheduleItem, this, boost::placeholders::_1));
 
     scene->setSchedule(s);
 }