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| 1 | +include(cmake/Modules/FindLibraryDependencies.cmake) |
| 2 | + |
| 3 | +set(bzip2_LIBNAME "bz2") |
| 4 | +set(bzip2_PKGCONFIG_DIR "${BZip2_ROOT}/lib/pkgconfig") |
| 5 | +set(bzip2_PKGCONFIG_NAME "bzip2") |
| 6 | +set(bzip2_LOCAL_PREFIX "bzip2") |
| 7 | + |
| 8 | +# Run pkg-config |
| 9 | +find_package(PkgConfig) |
| 10 | +set(ENV{bzip2_ORIG_PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}") |
| 11 | +set(ENV{PKG_CONFIG_PATH} "${bzip2_PKGCONFIG_DIR};$ENV{PKG_CONFIG_PATH}") |
| 12 | +pkg_check_modules(bzip2_PKGCONF QUIET "${bzip2_PKGCONFIG_NAME}") |
| 13 | + |
| 14 | +# Set include directory |
| 15 | +find_path(BZip2_INCLUDE_DIR bzlib.h |
| 16 | + HINTS ${bzip2_PKGCONF_INCLUDEDIR} |
| 17 | + PATH_SUFFIXES include |
| 18 | + ) |
| 19 | + |
| 20 | +# Handle static libraries |
| 21 | +if(BZip2_USE_STATIC_LIBS) |
| 22 | + set(bzip2_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES}) |
| 23 | + set(CMAKE_FIND_LIBRARY_SUFFIXES .a) |
| 24 | +endif() |
| 25 | + |
| 26 | +# Find library |
| 27 | +find_library(BZip2_LIBRARY |
| 28 | + NAMES "${bzip2_LIBNAME}" "${bzip2_LIBNAME}_static" |
| 29 | + HINTS ${bzip2_PKGCONF_LIBDIR} |
| 30 | + PATH_SUFFIXES lib |
| 31 | + ) |
| 32 | + |
| 33 | +if(BZip2_LIBRARY) |
| 34 | + set(BZip2_FOUND ON) |
| 35 | +endif() |
| 36 | + |
| 37 | +if(BZip2_USE_STATIC_LIBS) |
| 38 | + FindStaticLibraryDependencies(${bzip2_LIBNAME} ${bzip2_LOCAL_PREFIX} |
| 39 | + "${bzip2_PKGCONF_STATIC_LIBRARIES}") |
| 40 | + |
| 41 | + # Restore original value of CMAKE_FIND_LIBRARY_SUFFIXES |
| 42 | + set(CMAKE_FIND_LIBRARY_SUFFIXES ${bzip2_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES}) |
| 43 | + unset(bzip2_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES) |
| 44 | +else() |
| 45 | + list(APPEND bzip2_DYNAMIC_LIBS ${bzip2_PKGCONF_STATIC_LIBRARIES}) |
| 46 | +endif() |
| 47 | + |
| 48 | +FindDynamicLibraryDependencies(${bzip2_LOCAL_PREFIX} "${bzip2_DYNAMIC_LIBS}") |
| 49 | + |
| 50 | +# Set version |
| 51 | +set(BZip2_VERSION ${bzip2_PKGCONF_VERSION}) |
| 52 | + |
| 53 | +include(FindPackageHandleStandardArgs) |
| 54 | +find_package_handle_standard_args(BZip2 |
| 55 | + REQUIRED_VARS BZip2_FOUND BZip2_INCLUDE_DIR |
| 56 | + VERSION_VAR BZip2_VERSION |
| 57 | + ) |
| 58 | + |
| 59 | +if(NOT TARGET BZip2::BZip2) |
| 60 | + # Add library to build |
| 61 | + if (BZip2_FOUND) |
| 62 | + if (BZip2_USE_STATIC_LIBS) |
| 63 | + add_library(BZip2::BZip2 STATIC IMPORTED) |
| 64 | + else() |
| 65 | + # NOTE: We use UNKNOWN so that if the user doesn't have the SHARED |
| 66 | + # libraries installed, we can still use the STATIC libraries |
| 67 | + add_library(BZip2::BZip2 UNKNOWN IMPORTED) |
| 68 | + endif() |
| 69 | + endif() |
| 70 | + |
| 71 | + # Set include directories for library |
| 72 | + if(BZip2_INCLUDE_DIR) |
| 73 | + set_target_properties(BZip2::BZip2 |
| 74 | + PROPERTIES |
| 75 | + INTERFACE_INCLUDE_DIRECTORIES "${BZip2_INCLUDE_DIR}" |
| 76 | + ) |
| 77 | + endif() |
| 78 | + |
| 79 | + # Set location of library |
| 80 | + if(EXISTS "${BZip2_LIBRARY}") |
| 81 | + set_target_properties(BZip2::BZip2 |
| 82 | + PROPERTIES |
| 83 | + IMPORTED_LINK_INTERFACE_LANGUAGES "C" |
| 84 | + IMPORTED_LOCATION "${BZip2_LIBRARY}" |
| 85 | + ) |
| 86 | + |
| 87 | + # Add component's dependencies for linking |
| 88 | + if(BZip2_LIBRARY_DEPENDENCIES) |
| 89 | + set_target_properties(BZip2::BZip2 |
| 90 | + PROPERTIES |
| 91 | + INTERFACE_LINK_LIBRARIES "${BZip2_LIBRARY_DEPENDENCIES}" |
| 92 | + ) |
| 93 | + endif() |
| 94 | + endif() |
| 95 | +endif() |
| 96 | + |
| 97 | +# Restore original value of PKG_CONFIG_PATH |
| 98 | +set(ENV{PKG_CONFIG_PATH} "ENV{bzip2_ORIG_PKG_CONFIG_PATH}") |
| 99 | +unset(ENV{bzip2_ORIG_PKG_CONFIG_PATH}) |
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