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#.rst:
# FindBZip2
# ---------
#
# Find the BZip2 compression library.
#
# Imported targets
# ^^^^^^^^^^^^^^^^
#
# This module defines the following :prop_tgt:`IMPORTED` target:
#
# ``BZip2::BZip2``
# The BZip2 library, if found.
#
# Result variables
# ^^^^^^^^^^^^^^^^
#
# This module will set the following variables in your project:
#
# ``BZip2_INCLUDE_DIRS``
# where to find bzlib.h, etc.
# ``BZip2_LIBRARIES``
# the libraries to link against to use BZip2.
# ``BZip2_FOUND``
# If false, do not try to use BZip2.
if(NOT BZip2_INCLUDE_DIR)
find_path(BZip2_INCLUDE_DIR bzlib.h)
endif()
if(NOT BZip2_LIBRARY)
find_library(BZip2_LIBRARY NAMES ${GR_THIRDPARTY_LIBRARY_PREFIX}bz2${GR_THIRDPARTY_LIBRARY_SUFFIX} bz2 libbz2)
endif()
if(BZip2_INCLUDE_DIR)
if(NOT BZIP2_VERSION_STRING)
file(READ ${BZip2_INCLUDE_DIR}/bzlib.h BZIP2_H_TEXT)
string(REGEX REPLACE ".*version ([0-9]+.[0-9]+.[0-9]).*" "\\1" BZIP2_VERSION_STRING ${BZIP2_H_TEXT})
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
BZip2
VERSION_VAR
BZIP2_VERSION_STRING
REQUIRED_VARS
BZip2_LIBRARY
BZip2_INCLUDE_DIR
BZIP2_VERSION_STRING
)
if(BZip2_FOUND)
set(BZip2_INCLUDE_DIRS ${BZip2_INCLUDE_DIR})
set(BZip2_LIBRARIES ${BZip2_LIBRARY})
if(NOT TARGET BZip2::BZip2)
add_library(BZip2::BZip2 UNKNOWN IMPORTED)
set_target_properties(
BZip2::BZip2
PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${BZip2_INCLUDE_DIRS}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION "${BZip2_LIBRARY}"
)
endif()
elseif(${CMAKE_FIND_PACKAGE_NAME}_FIND_REQUIRED)
message(FATAL_ERROR "${CMAKE_FIND_PACKAGE_NAME} was required but could not be found.")
endif()
mark_as_advanced(BZip2_INCLUDE_DIR BZip2_LIBRARY)
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