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Compile LMMS using C++17

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This replaces `set(CMAKE_CXX_STANDARD 14)` by `set(CMAKE_CXX_STANDARD 17)`
wherever it is required.

Additionally:

* raise `CMAKE_MINIMUM_REQUIRED(VERSION ...)` to `3.8` (the minimum
  that supports C++17)
* `stdshims.h` is now unused and thus removed
This commit is contained in:
Johannes Lorenz
2021-08-22 18:06:20 +02:00
committed by Johannes Lorenz
parent fd18305fba
commit 8a9a2fae62
9 changed files with 11 additions and 44 deletions
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4
plugins/CMakeLists.txt
View File

@@ -2,8 +2,8 @@ SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
SET(CMAKE_DEBUG_POSTFIX "")
# Enable C++14
SET(CMAKE_CXX_STANDARD 14)
# Enable C++17
SET(CMAKE_CXX_STANDARD 17)
IF(LMMS_BUILD_APPLE)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")

6
plugins/vst_base/RemoteVstPlugin/CMakeLists.txt
View File

@@ -1,7 +1,7 @@
cmake_minimum_required(VERSION 3.1)
cmake_minimum_required(VERSION 3.8)
project(RemoteVstPlugin
LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)
include(CheckCXXPreprocessor)
include(CheckCXXSourceCompiles)
@@ -55,7 +55,7 @@ if(WIN32)
endif()
if(IS_MINGW)
SET(CMAKE_REQUIRED_FLAGS "-std=c++14")
SET(CMAKE_REQUIRED_FLAGS "-std=c++17")
CHECK_CXX_SOURCE_COMPILES("
#include <mutex>