mixxx: new package

multimedia/sound/mixxx/files/mixxx-2.3.0-cmake.patch

@@ -0,0 +1,10 @@
+--- mixxx-2.3.0/CMakeLists.txt
++++ mixxx-2.3.0/CMakeLists.txt
+@@ -53,8 +53,6 @@
+     set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE STRING "Choose the type of build." FORCE)
+     # Set the possible values of build type for cmake-gui
+     set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "RelWithDebInfo")
+-  elseif(NOT CMAKE_BUILD_TYPE MATCHES "^(Debug|Release|RelWithDebInfo)$")
+-    message(FATAL_ERROR "CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} is not supported, use one of Debug, Release or RelWithDebInfo.")
+   endif()
+ endif()