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cmake:add pkgconfig usage if find_package failed #182

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cmake:add pkgconfig usage if find_package failed #182

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58 changes: 43 additions & 15 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -11,25 +11,53 @@ add_library(boost_iostreams
src/mapped_file.cpp
)

function(boost_iostreams_option name description package version found target) # sources...
function(boost_iostreams_option name description package version found target pkgconfig_name pkgconfig_target) # sources...

find_package(${package} ${version} QUIET)

if(${found} AND TARGET ${target})
if(${name})

option(${name} ${description} ON)
find_package(${package} ${version} QUIET)

if(${found} AND TARGET ${target})

option(${name} ${description} ON)
target_sources(boost_iostreams PRIVATE ${ARGN})
target_link_libraries(boost_iostreams PRIVATE ${target})

else()

find_package(PkgConfig REQUIRED)
pkg_check_modules(${pkgconfig_name} GLOBAL IMPORTED_TARGET REQUIRED ${pkgconfig_name})

if(TARGET ${pkgconfig_target})

target_sources(boost_iostreams PRIVATE ${ARGN})
target_link_libraries(boost_iostreams PRIVATE ${pkgconfig_target})

else()

message(FATAL_ERROR "Option ${boost_iostreams_option} was turned on, but no .cmake config or .pc files related to corresponding library wasn't found. Are those libraries installed?")

endif()
endif()
elseif(DEFINED ${name} AND NOT ${name})

option(${name} ${description} OFF)

else()

option(${name} ${description} OFF)
find_package(${package} ${version} QUIET)

if(${found} AND TARGET ${target})

endif()
option(${name} ${description} ON)
target_sources(boost_iostreams PRIVATE ${ARGN})
target_link_libraries(boost_iostreams PRIVATE ${target})

if(${name})
else()

option(${name} ${description} OFF)

find_package(${package} ${version} REQUIRED)
target_sources(boost_iostreams PRIVATE ${ARGN})
target_link_libraries(boost_iostreams PRIVATE ${target})
endif()

endif()

Expand All @@ -39,10 +67,10 @@ endfunction()
set(BOOST_IOSTREAMS_ZSTD_TARGET "zstd::libzstd_shared" CACHE STRING "Target name for Zstd (zstd::libzstd_shared, zstd::libzstd_static)")
set_property(CACHE BOOST_IOSTREAMS_ZSTD_TARGET PROPERTY STRINGS "zstd::libzstd_shared" "zstd::libzstd_static")

boost_iostreams_option(BOOST_IOSTREAMS_ENABLE_ZLIB "Boost.Iostreams: Enable ZLIB support" ZLIB "" ZLIB_FOUND ZLIB::ZLIB src/zlib.cpp src/gzip.cpp)
boost_iostreams_option(BOOST_IOSTREAMS_ENABLE_BZIP2 "Boost.Iostreams: Enable BZip2 support" BZip2 "" BZIP2_FOUND BZip2::BZip2 src/bzip2.cpp)
boost_iostreams_option(BOOST_IOSTREAMS_ENABLE_LZMA "Boost.Iostreams: Enable LZMA support" LibLZMA "" LIBLZMA_FOUND LibLZMA::LibLZMA src/lzma.cpp)
boost_iostreams_option(BOOST_IOSTREAMS_ENABLE_ZSTD "Boost.Iostreams: Enable Zstd support" zstd "1.0" zstd_FOUND ${BOOST_IOSTREAMS_ZSTD_TARGET} src/zstd.cpp)
boost_iostreams_option(BOOST_IOSTREAMS_ENABLE_ZLIB "Boost.Iostreams: Enable ZLIB support" ZLIB "" ZLIB_FOUND ZLIB::ZLIB zlib PkgConfig::zlib src/zlib.cpp src/gzip.cpp)
boost_iostreams_option(BOOST_IOSTREAMS_ENABLE_BZIP2 "Boost.Iostreams: Enable BZip2 support" BZip2 "" BZIP2_FOUND BZip2::BZip2 bzip2 PkgConfig::bzip2 src/bzip2.cpp)
boost_iostreams_option(BOOST_IOSTREAMS_ENABLE_LZMA "Boost.Iostreams: Enable LZMA support" LibLZMA "" LIBLZMA_FOUND LibLZMA::LibLZMA liblzma PkgConfig::liblzma src/lzma.cpp)
boost_iostreams_option(BOOST_IOSTREAMS_ENABLE_ZSTD "Boost.Iostreams: Enable Zstd support" zstd "1.0" zstd_FOUND ${BOOST_IOSTREAMS_ZSTD_TARGET} libzstd PkgConfig::libzstd src/zstd.cpp)

include(CheckCXXSourceCompiles)

Expand Down