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reorganize priorities

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This commit is contained in:
qPCR4vir
2019-11-05 19:23:50 +01:00
parent 2234d06bea
commit 25353e4325
2 changed files with 16 additions and 14 deletions
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26
build/cmake/select_filesystem.cmake
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@@ -1,15 +1,13 @@
# The ISO C++ File System Technical Specification (ISO-TS, or STD) was optional.
# http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4100.pdf
# It is part of c++17.
# The library may be not available or working correctly in the std library in use. As a workaround we may try
# The library may be not available or working correctly in the std library you use. As a workaround we may try
# to "implement" it (ab)using Boost (almost compatible)
# http://www.boost.org/doc/libs/1_60_0/libs/filesystem/doc/index.htm
# or you can choose to use the (partial, but functional) implementation provided by nana.
# If you include the file <nana/filesystem/filesystem.hpp> or <nana/filesystem/filesystem_ext.hpp>
# the selected option will be set by nana into std::filesystem
# By default Nana will try to use the STD. If STD is not available and NANA_CMAKE_FIND_BOOST_FILESYSTEM
# is set to ON nana will try to use boost if available. Nana own implementation will be use if none of
# the previus were selected or available.
# the selected option will be inlined by nana into std::filesystem
# By default Nana will try to use the STD. If STD is not available Nana own implementation will be used.
# You can change that default if you change one of the following
# (please don't define more than one of the _XX_FORCE options):
option(NANA_CMAKE_NANA_FILESYSTEM_FORCE "Force nana filesystem over ISO and boost?" OFF)
@@ -18,13 +16,20 @@ option(NANA_CMAKE_BOOST_FILESYSTEM_FORCE "Force use of Boost filesystem if avail
option(NANA_CMAKE_FIND_BOOST_FILESYSTEM "Search: Is Boost filesystem available?" OFF)
if(NANA_CMAKE_NANA_FILESYSTEM_FORCE)
if(NANA_CMAKE_STD_FILESYSTEM_FORCE)
message (FATAL_ERROR "Defined NANA_CMAKE_NANA_FILESYSTEM_FORCE and NANA_CMAKE_STD_FILESYSTEM_FORCE")
endif()
if(NANA_CMAKE_BOOST_FILESYSTEM_FORCE)
message (FATAL_ERROR "Defined NANA_CMAKE_NANA_FILESYSTEM_FORCE and NANA_CMAKE_BOOST_FILESYSTEM_FORCE")
endif()
target_compile_definitions(nana PUBLIC NANA_FILESYSTEM_FORCE)
elseif(NANA_CMAKE_STD_FILESYSTEM_FORCE)
target_compile_definitions(nana PUBLIC STD_FILESYSTEM_FORCE)
target_link_libraries (nana PUBLIC stdc++fs)
elseif(NANA_CMAKE_BOOST_FILESYSTEM_FORCE)
if(NANA_CMAKE_STD_FILESYSTEM_FORCE)
message (FATAL_ERROR "Defined NANA_CMAKE_BOOST_FILESYSTEM_FORCE and NANA_CMAKE_STD_FILESYSTEM_FORCE")
endif()
target_compile_definitions(nana PUBLIC BOOST_FILESYSTEM_FORCE)
# https://cmake.org/cmake/help/git-master/module/FindBoost.html
# Implicit dependencies such as Boost::filesystem requiring Boost::system will be automatically detected and satisfied,
@@ -51,6 +56,3 @@ else()
endif()