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FindLibZ.cmake
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FindLibZ.cmake
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# Try pkg-config first
find_package(PkgConfig)
pkg_check_modules(PKGC_LIBZ QUIET zlib)
if(PKGC_LIBZ_FOUND)
# Found lib using pkg-config.
if(CMAKE_DEBUG)
message(STATUS "\${PKGC_LIBZ_LIBRARIES} = ${PKGC_LIBZ_LIBRARIES}")
message(STATUS "\${PKGC_LIBZ_LIBRARY_DIRS} = ${PKGC_LIBZ_LIBRARY_DIRS}")
message(STATUS "\${PKGC_LIBZ_LDFLAGS} = ${PKGC_LIBZ_LDFLAGS}")
message(STATUS "\${PKGC_LIBZ_LDFLAGS_OTHER} = ${PKGC_LIBZ_LDFLAGS_OTHER}")
message(STATUS "\${PKGC_LIBZ_INCLUDE_DIRS} = ${PKGC_LIBZ_INCLUDE_DIRS}")
message(STATUS "\${PKGC_LIBZ_CFLAGS} = ${PKGC_LIBZ_CFLAGS}")
message(STATUS "\${PKGC_LIBZ_CFLAGS_OTHER} = ${PKGC_LIBZ_CFLAGS_OTHER}")
endif(CMAKE_DEBUG)
set(LIBZ_LIBRARIES ${PKGC_LIBZ_LIBRARIES})
set(LIBZ_INCLUDE_DIRS ${PKGC_LIBZ_INCLUDE_DIRS})
#set(LIBZ_DEFINITIONS ${PKGC_LIBZ_CFLAGS_OTHER})
else(PKGC_LIBZ_FOUND)
# Didn't find lib using pkg-config. Try to find it manually
message(WARNING "Unable to find LibZ using pkg-config! If compilation fails, make sure pkg-config is installed and PKG_CONFIG_PATH is set correctly")
find_path(LIBZ_INCLUDE_DIR zlib.h
PATH_SUFFIXES zlib)
find_library(LIBZ_LIBRARY NAMES z libz)
if(CMAKE_DEBUG)
message(STATUS "\${LIBZ_LIBRARY} = ${LIBZ_LIBRARY}")
message(STATUS "\${LIBZ_INCLUDE_DIR} = ${LIBZ_INCLUDE_DIR}")
endif(CMAKE_DEBUG)
set(LIBZ_LIBRARIES ${LIBZ_LIBRARY})
set(LIBZ_INCLUDE_DIRS ${LIBZ_INCLUDE_DIR})
endif(PKGC_LIBZ_FOUND)
include(FindPackageHandleStandardArgs)
# Handle the QUIETLY and REQUIRED arguments and set <PREFIX>_FOUND to TRUE if
# all listed variables are TRUE
find_package_handle_standard_args(LibZ DEFAULT_MSG LIBZ_LIBRARIES)

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