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Fix compatibility with CMake 3.4 (#1779)

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This commit is contained in:
Victor Zverovich 2020-07-17 06:39:53 -07:00
parent f5d4215b7c
commit 18024853b6
1 changed files with 13 additions and 5 deletions
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18
CMakeLists.txt
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@ -24,15 +24,23 @@ function(join result_var)
set(${result_var} "${result}" PARENT_SCOPE)
endfunction()
include(CMakeParseArguments)
# Sets a cache variable with a docstring joined from multiple arguments:
# set(<variable> <value>... CACHE <type> <docstring>...)
# This allows splitting a long docstring for readability.
function(set_verbose)
cmake_parse_arguments(SET_VERBOSE "" "" "CACHE" ${ARGN})
list(GET SET_VERBOSE_CACHE 0 type)
list(REMOVE_AT SET_VERBOSE_CACHE 0)
join(doc ${SET_VERBOSE_CACHE})
set(${SET_VERBOSE_UNPARSED_ARGUMENTS} CACHE ${type} ${doc})
# cmake_parse_arguments is broken in CMake 3.4 (cannot parse CACHE) so use
# list instead.
list(GET ARGN 0 var)
list(REMOVE_AT ARGN 0)
list(GET ARGN 0 val)
list(REMOVE_AT ARGN 0)
list(REMOVE_AT ARGN 0)
list(GET ARGN 0 type)
list(REMOVE_AT ARGN 0)
join(doc ${ARGN})
set(${var} ${val} CACHE ${type} ${doc})
endfunction()
# Set the default CMAKE_BUILD_TYPE to Release.