commit 112208ddd9c862d2788f28dadf8ac7073f1553eb
Author: Kornel Benko <kor...@lyx.org>
Date: Thu Oct 24 11:35:06 2024 +0200
Amend c916bd15 for cmake build: Require C++17
---
development/cmake/modules/FindCXX11Compiler.cmake | 3 ++-
development/cmake/modules/LyXMacros.cmake | 6 +++---
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/development/cmake/modules/FindCXX11Compiler.cmake
b/development/cmake/modules/FindCXX11Compiler.cmake
index 750a8ff32b..ddab3a2335 100644
--- a/development/cmake/modules/FindCXX11Compiler.cmake
+++ b/development/cmake/modules/FindCXX11Compiler.cmake
@@ -38,7 +38,8 @@ INCLUDE(FindPackageHandleStandardArgs)
# Detection of c++20 works well, but our code is not ready for it yet.
# We currently get errors with internal boost and also from our code.
set(_max_std_num 20)
-lyxgetknowncmakestd(${_max_std_num} tmpnums)
+set(_min_std_num 17)
+lyxgetknowncmakestd(${_max_std_num} ${_min_std_num} tmpnums)
if (CMAKE_CXX_COMPILER_ID MATCHES "^([cC]lang|AppleClang)$")
foreach(_num ${tmpnums})
diff --git a/development/cmake/modules/LyXMacros.cmake
b/development/cmake/modules/LyXMacros.cmake
index 045a63f31a..16b95c4ef2 100644
--- a/development/cmake/modules/LyXMacros.cmake
+++ b/development/cmake/modules/LyXMacros.cmake
@@ -468,12 +468,12 @@ function(determineversionandbuildtype configfile package
version dirs date build
endfunction(determineversionandbuildtype)
# determine known cmake cxx_std features but only if not greater than
${max_desired}
-function(lyxgetknowncmakestd max_desired result)
+function(lyxgetknowncmakestd max_desired min_enabled result)
set(tmp_list)
set(CXX_STD_LIST)
math(EXPR max_desired "${max_desired}+1")
if (CMAKE_VERSION VERSION_LESS "3.9")
- list(APPEND tmp_list 98 11 14)
+ list(APPEND tmp_list 14 17 20)
else()
foreach(_e ${CMAKE_CXX_COMPILE_FEATURES})
if (_e MATCHES "^cxx_std_\(.*)")
@@ -484,7 +484,7 @@ function(lyxgetknowncmakestd max_desired result)
list(REVERSE tmp_list)
# Filter undesired from list
foreach(i ${tmp_list})
- if (i LESS ${max_desired} OR i GREATER 89)
+ if (i LESS ${max_desired} AND i GREATER_EQUAL ${min_enabled})
list(APPEND CXX_STD_LIST ${i})
endif()
endforeach()
--
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