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Amend c916bd15 for cmake build: Require C++17

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This commit is contained in:
Kornel Benko 2024-10-24 11:35:06 +02:00
parent 7bba9a3ade
commit 112208ddd9
2 changed files with 5 additions and 4 deletions
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3
development/cmake/modules/FindCXX11Compiler.cmake
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@ -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})

6
development/cmake/modules/LyXMacros.cmake
View File

@ -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()