Add support for compiling with QCA on Qt5

[quassel.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 26f967f..a4953ee 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,9 +11,9 @@ project(QuasselIRC)
 
 # Versions
 set(QUASSEL_MAJOR  0)
-set(QUASSEL_MINOR 11)
+set(QUASSEL_MINOR 12)
 set(QUASSEL_PATCH  0)
-set(QUASSEL_VERSION_STRING "0.11-pre")
+set(QUASSEL_VERSION_STRING "0.12-pre")
 
 # Tell CMake about or own modules
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
@@ -34,6 +34,11 @@ include(FeatureSummary)
 include(QuasselCompileSettings)
 include(QuasselMacros)
 
+# Setting COMPILE_DEFINITIONS_<CONFIG> is deprecated since CMake 3.0 in favor of generator expressions.
+# These have existed since CMake 2.8.10; until we depend on that, we have to explicitly enable the old policy.
+if (CMAKE_MAJOR_VERSION GREATER 2)
+    cmake_policy(SET CMP0043 OLD)
+endif()
 
 # Options and variables that can be set on the command line
 #####################################################################
@@ -145,12 +150,18 @@ endif()
 # using -DCMAKE_DISABLE_FIND_PACKAGE_<PkgName>=TRUE
 #####################################################################
 
-if(USE_QT5)
+if (USE_QT5)
     find_package(Qt5Core ${QT_MIN_VERSION} QUIET)
     set_package_properties(Qt5Core PROPERTIES TYPE REQUIRED
         URL "http://qt.digia.com"
         DESCRIPTION "contains core functionality for Qt"
     )
+    # find_package without REQUIRED won't check for the version properly; also, older Qt5 versions
+    # used Qt5Core_VERSION_STRING... let's just make sure here that we bail out here if our Qt5 is not new enough.
+    if (NOT Qt5Core_VERSION OR Qt5Core_VERSION VERSION_LESS ${QT_MIN_VERSION})
+        message(FATAL_ERROR "Could NOT find Qt5 >= version ${QT_MIN_VERSION}!")
+    endif()
+
     find_package(Qt5Network QUIET)
     set_package_properties(Qt5Network PROPERTIES TYPE REQUIRED
         DESCRIPTION "the network module for Qt5"
@@ -187,7 +198,7 @@ if(USE_QT5)
             DESCRIPTION "a multimedia abstraction library"
             PURPOSE     "Required for audio notifications"
         )
-        
+
         find_package(LibsnoreQt5 QUIET)
         set_package_properties(LibsnoreQt5 PROPERTIES TYPE OPTIONAL
             URL "https://github.com/TheOneRing/Snorenotify"
@@ -224,14 +235,12 @@ if(USE_QT5)
             DESCRIPTION "the database support module for Qt5"
         )
 
-        # While QCA2 seems to support Qt5, it is not actually co-installable or distinguishable from the Qt4 version...
-        # In order to avoid linking against the Qt4 version (which is probably the one installed), disable this for now
-        #find_package(QCA2 QUIET)
-        #set_package_properties(QCA2 PROPERTIES TYPE RECOMMENDED
-        #    URL "https://projects.kde.org/projects/kdesupport/qca"
-        #    DESCRIPTION "Qt Cryptographic Architecture"
-        #    PURPOSE "Required for encryption support"
-        #)
+        find_package(QCA2-QT5)
+        set_package_properties(QCA2-QT5 PROPERTIES TYPE RECOMMENDED
+            URL "https://projects.kde.org/projects/kdesupport/qca"
+            DESCRIPTION "Qt Cryptographic Architecture"
+            PURPOSE "Required for encryption support"
+        )
 
     endif(BUILD_CORE)
 
@@ -240,16 +249,23 @@ if(USE_QT5)
                            DESCRIPTION "contains tools for handling translation files"
                            PURPOSE "Required for having translations"
     )
-    # Qt5 does not define a target for lconvert, so we need to find it ourselves
+    # Some Qt5 versions do not define a target for lconvert, so we need to find it ourselves
     if (Qt5LinguistTools_FOUND)
         if (NOT TARGET Qt5::lconvert AND TARGET Qt5::lrelease)
             get_target_property(_lrelease_location Qt5::lrelease LOCATION)
             get_filename_component(_lrelease_path ${_lrelease_location} PATH)
             find_program(QT_LCONVERT_EXECUTABLE NAMES lconvert-qt5 lconvert PATHS ${_lrelease_path} NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
+        elseif(TARGET Qt5::lconvert AND NOT Qt5_LCONVERT_EXECUTABLE)
+            # Newer Qt5 versions define the target, but not the Qt5_LCONVERT_EXECUTABLE variable for some reason
+            get_target_property(QT_LCONVERT_EXECUTABLE Qt5::lconvert LOCATION)
         endif()
+
         # Compatibility with the Qt4 variables
-        set (QT_LRELEASE_EXECUTABLE ${Qt5_LRELEASE_EXECUTABLE})
-        set (QT_LUPDATE_EXECUTABLE ${Qt5_LUPDATE_EXECUTABLE})
+        set(QT_LRELEASE_EXECUTABLE ${Qt5_LRELEASE_EXECUTABLE})
+        set(QT_LUPDATE_EXECUTABLE ${Qt5_LUPDATE_EXECUTABLE})
+        if (Qt5_LCONVERT_EXECUTABLE)
+            set(QT_LCONVERT_EXECUTABLE ${Qt5_LCONVERT_EXECUTABLE})
+        endif()
     endif()
 
 else(USE_QT5)
@@ -447,10 +463,14 @@ endif(STATIC AND CMAKE_COMPILER_IS_GNUCXX)
 if(WIN32)
   link_libraries(imm32 winmm dbghelp Secur32)  # missing by default :/
   if(MSVC)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /DNOMINMAX")
     set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBUGINFO "/debug /INCREMENTAL:YES /NODEFAULTLIB:libcmt /DEFAULTLIB:msvcrt")
     set(CMAKE_EXE_LINKER_FLAGS_DEBUG "/debug /INCREMENTAL:YES /NODEFAULTLIB:libcmt")
     set(CMAKE_EXE_LINKER_FLAGS_DEBUGFULL "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
     link_libraries(Version dwmapi shlwapi)
+    if(USE_QT5)
+      set(QT_QTMAIN_LIBRARY Qt5::WinMain)
+    endif(USE_QT5)
   endif(MSVC)
   if(HAVE_SSL AND STATIC)
      find_package(OpenSSL REQUIRED)