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[cmake] Prioritize -isystem over -I in extract_flags macro, Minor fix for empty list of inc_dirs

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This commit is contained in:
Nils Wentzell 2019-09-26 09:49:34 -04:00
parent a26bfae4d1
commit e4063bf4d0
1 changed files with 3 additions and 1 deletions
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4
share/cmake/extract_flags.cmake
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@ -44,7 +44,9 @@ macro(extract_flags target)
get_property_recursive(inc_dirs TARGET ${target} PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
get_property_recursive(sys_inc_dirs TARGET ${target} PROPERTY INTERFACE_SYSTEM_INCLUDE_DIRECTORIES)
list(REMOVE_ITEM inc_dirs ${sys_inc_dirs})
if(inc_dirs)
list(REMOVE_ITEM sys_inc_dirs ${inc_dirs})
endif()
foreach(dir ${inc_dirs})
set(${target}_CXXFLAGS "${${target}_CXXFLAGS} -I${dir}")
endforeach()