X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=CMakeLists.txt;h=956f647647347bfc34fa4d34651f8027716ad280;hp=9fe8bf55e9ffbf7c60de8cffb7795aab375f9f8e;hb=6538dce32fd66ee5274197f16bc9b75f09ef4aae;hpb=d32f2fcafe3d3925cd64e332e0d02261a134af21

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9fe8bf55..956f6476 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,6 @@
 # General setup
 #####################################################################
 
-cmake_minimum_required(VERSION 2.8.9)  # You'll need at least 2.8.12 for KDE Frameworks integration
 project(QuasselIRC)
 
 # Versions
@@ -34,11 +33,6 @@ 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
 #####################################################################
@@ -119,6 +113,22 @@ if (LINK_EXTRA)
 endif()
 
 
+# Setup CMake
+#####################################################################
+
+if (USE_QT5 AND WITH_KDE)
+    cmake_minimum_required(VERSION 2.8.12)
+else()
+    cmake_minimum_required(VERSION 2.8.9)
+endif()
+
+# 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()
+
+
 # Simplify later checks
 #####################################################################
 
@@ -425,6 +435,11 @@ if (MINGW AND NOT KDE4_FOUND)
     add_definitions(-U__STRICT_ANSI__)
 endif()
 
+# Sanitize compiler flags - old versions of KDE set -ansi, which breaks -std=c++11
+if (CMAKE_COMPILER_IS_GNUCXX)
+    string(REPLACE "-ansi" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
+endif()
+
 
 # Setup KDE / KDE Frameworks
 #####################################################################