cmake: Enable ccache by default, if available

[quassel.git] / cmake / QuasselCompileSettings.cmake

diff --git a/cmake/QuasselCompileSettings.cmake b/cmake/QuasselCompileSettings.cmake
index bd61d5c..67cfd64 100644 (file)
--- a/cmake/QuasselCompileSettings.cmake
+++ b/cmake/QuasselCompileSettings.cmake
@@ -7,15 +7,6 @@
 
 include(CheckCXXCompilerFlag)
 
-if (CMAKE_CONFIGURATION_TYPES)
-    set(CMAKE_CONFIGURATION_TYPES Release RelWithDebInfo Debug Debugfull Profile)
-    set(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" CACHE STRING "These are the configuration types we support" FORCE)
-endif()
-
-if(NOT CMAKE_BUILD_TYPE)
-    set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo Debug Debugfull Profile" FORCE)
-endif()
-
 # Qt debug flags
 set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_DEBUG QT_DEBUG)
 set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_DEBUGFULL QT_DEBUG)
@@ -30,8 +21,8 @@ endif()
 
 # Enable various flags on gcc
 if (CMAKE_COMPILER_IS_GNUCXX)
-    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.7")
-        message(WARNING "Your compiler is too old; we expect at least GCC 4.7. Your build will likely fail.")
+    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.8")
+        message(FATAL_ERROR "Your compiler is too old; you need GCC 4.8+, Clang 3.3+, MSVC 19.0+, or any other compiler with full C++11 support.")
     endif()
 
     # Let's just hope that all gccs support these options and skip the tests...
@@ -52,9 +43,9 @@ if (CMAKE_COMPILER_IS_GNUCXX)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wno-unused-function -Wno-undef -fno-strict-aliasing")
 
 # ... and for Clang
-elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
-    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.1")
-        message(WARNING "Your compiler is too old; we expect at least Clang 3.1. Your build will likely fail.")
+elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.3")
+        message(FATAL_ERROR "Your compiler is too old; you need Clang 3.3+, GCC 4.8+, MSVC 19.0+, or any other compiler with full C++11 support.")
     endif()
 
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wnon-virtual-dtor -Wno-long-long -Wundef -Wcast-align -Wchar-subscripts -Wall -W -Wextra -Wpointer-arith -Wformat-security -Woverloaded-virtual -fno-common -Wno-deprecated-register")
@@ -66,12 +57,15 @@ elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
 
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wno-unused-function -Wno-undef -fno-strict-aliasing")
 
-# For MSVC, at least do a version sanity check
-elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "MSVC")
-    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "18.0")
-        message(WARNING "Your compiler is too old; we expect at least Visual Studio Nov 2013 CTP (MSVC 18). Your build will likely fail.")
+# For MSVC, at least do a version sanity check...
+elseif(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "19.0")
+        message(FATAL_ERROR "Your compiler is too old; you need at least Visual Studio 2015 (MSVC 19.0+), GCC 4.8+, Clang 3.3+, or any other compiler with full C++11 support.")
     endif()
 
+    # ... and enable exception handling (required for STL types)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHsc")
+
 # Unknown/unsupported compiler
 else()
     message(WARNING "Unknown or unsupported compiler. Make sure to enable C++11 support. Good luck.")
@@ -80,6 +74,5 @@ endif()
 # Mac build stuff
 if (APPLE AND DEPLOY)
     set(CMAKE_OSX_ARCHITECTURES "x86_64")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.8")
-    set(CMAKE_OSX_SYSROOT "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.9 -stdlib=libc++")
 endif()