cmake: Modern way to link to zlib

CMakeLists.txt

@@ -151,7 +151,7 @@ add_definitions(-DQT_NO_URL_CAST_FROM_STRING)
 add_definitions(-DQT_DEPRECATED_WARNINGS_SINCE=0x050C00)
 add_definitions(-DKF_DEPRECATED_WARNINGS_SINCE=0x054400)
 
-include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${PHONON_INCLUDES} core/synctex ${ZLIB_INCLUDE_DIR} ${CMAKE_BINARY_DIR}/core)
+include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${PHONON_INCLUDES} core/synctex ${CMAKE_BINARY_DIR}/core)
 
 if(BUILD_MOBILE)
     add_subdirectory( mobile )
@@ -309,7 +309,7 @@ PRIVATE
     KF5::Bookmarks
     Phonon::phonon4qt5
     ${MATH_LIB}
-    ${ZLIB_LIBRARIES}
+    ZLIB::ZLIB
 PUBLIC  # these are included from the installed headers
     KF5::CoreAddons
     KF5::XmlGui

generators/plucker/CMakeLists.txt

@@ -4,7 +4,6 @@ add_definitions(-DTRANSLATION_DOMAIN="okular_plucker")
 include_directories(
    ${CMAKE_CURRENT_SOURCE_DIR}/../..
    ${CMAKE_CURRENT_SOURCE_DIR}/../../generators/plucker/unpluck
-   ${ZLIB_INCLUDE_DIR}
 )
 
 set(qunpluck_SRCS
@@ -23,7 +22,7 @@ set(okularGenerator_plucker_SRCS
 
 okular_add_generator(okularGenerator_plucker ${okularGenerator_plucker_SRCS} ${qunpluck_SRCS})
 
-target_link_libraries(okularGenerator_plucker okularcore KF5::KIOCore KF5::I18n ${MATH_LIB} JPEG::JPEG ${ZLIB_LIBRARY})
+target_link_libraries(okularGenerator_plucker okularcore KF5::KIOCore KF5::I18n ${MATH_LIB} JPEG::JPEG ZLIB::ZLIB)
 
 ########### install files ###############
 install( FILES okularPlucker.desktop  DESTINATION  ${KDE_INSTALL_KSERVICES5DIR} )