[LyX/master] Cmake build: Next try to use of '--std=c++17' for gnu compiler"
Kornel Benko
kornel at lyx.org
Thu Oct 22 11:23:51 UTC 2020
commit d954a6b09cc9d284a34510f076c16f22b425ead2
Author: Kornel Benko <kornel at lyx.org>
Date: Thu Oct 22 13:46:29 2020 +0200
Cmake build: Next try to use of '--std=c++17' for gnu compiler"
Setting CMAKE_CXX_STANDARD explicitly, so that cmake can use
correct cxx-flags
---
CMakeLists.txt | 6 ++++--
development/cmake/modules/FindCXX11Compiler.cmake | 1 +
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9085355..42b7399 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -692,14 +692,16 @@ else()
if(NOT LYX_QUIET)
set(CMAKE_VERBOSE_MAKEFILE ON)
endif()
- set(LYX_CXX_FLAGS "-Wall -Wunused-parameter ${LYX_GCC11_MODE}${LYX_CXX_FLAGS}")
- if(LYX_GCC11_MODE MATCHES "\\+\\+(14|11|98)")
+ if(LYX_GCC11_MODE MATCHES "\\+\\+([0-9][0-9])")
# Thanks to Brad King <brad.king at kitware.com>
# for the pointer to https://cmake.org/cmake/help/v3.6/variable/CMAKE_CXX_STANDARD.html
# This allows us to use QT5.7 with recent g++ (version >= 4.9) compilers
# and still use our own c++ extension tests
set(CMAKE_CXX_STANDARD ${CMAKE_MATCH_1})
message(STATUS "CMAKE_CXX_STANDARD set to ${CMAKE_CXX_STANDARD}")
+ set(LYX_CXX_FLAGS "-Wall -Wunused-parameter ${LYX_CXX_FLAGS}")
+ else()
+ set(LYX_CXX_FLAGS "-Wall -Wunused-parameter ${LYX_GCC11_MODE}${LYX_CXX_FLAGS}")
endif()
if(LYX_STDLIB_DEBUG)
set(LYX_CXX_FLAGS "${LYX_CXX_FLAGS} -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC")
diff --git a/development/cmake/modules/FindCXX11Compiler.cmake b/development/cmake/modules/FindCXX11Compiler.cmake
index 9188ab6..96b72eb 100644
--- a/development/cmake/modules/FindCXX11Compiler.cmake
+++ b/development/cmake/modules/FindCXX11Compiler.cmake
@@ -54,6 +54,7 @@ else()
endif()
else()
set(CXX11_FLAG_CANDIDATES
+ "--std=c++17"
"--std=c++14"
"--std=c++11"
"--std=gnu++11"
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