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Merge pull request #10 from JohanMabille/osx
Added OSX to travisci
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| Original file line number | Diff line number | Diff line change |
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| # Copyright Contributors to the OpenVDB Project | ||
| # SPDX-License-Identifier: MPL-2.0 | ||
| # | ||
| #[=======================================================================[.rst: | ||
|
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| FindBlosc | ||
| --------- | ||
|
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| Find Blosc include dirs and libraries | ||
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| Use this module by invoking find_package with the form:: | ||
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| find_package(Blosc | ||
| [version] [EXACT] # Minimum or EXACT version e.g. 1.5.0 | ||
| [REQUIRED] # Fail with error if Blosc is not found | ||
| ) | ||
|
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| IMPORTED Targets | ||
| ^^^^^^^^^^^^^^^^ | ||
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| ``Blosc::blosc`` | ||
| This module defines IMPORTED target Blosc::Blosc, if Blosc has been found. | ||
|
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| Result Variables | ||
| ^^^^^^^^^^^^^^^^ | ||
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| This will define the following variables: | ||
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| ``Blosc_FOUND`` | ||
| True if the system has the Blosc library. | ||
| ``Blosc_VERSION`` | ||
| The version of the Blosc library which was found. | ||
| ``Blosc_INCLUDE_DIRS`` | ||
| Include directories needed to use Blosc. | ||
| ``Blosc_LIBRARIES`` | ||
| Libraries needed to link to Blosc. | ||
| ``Blosc_LIBRARY_DIRS`` | ||
| Blosc library directories. | ||
|
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| Cache Variables | ||
| ^^^^^^^^^^^^^^^ | ||
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| The following cache variables may also be set: | ||
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| ``Blosc_INCLUDE_DIR`` | ||
| The directory containing ``blosc.h``. | ||
| ``Blosc_LIBRARY`` | ||
| The path to the Blosc library. | ||
|
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| Hints | ||
| ^^^^^ | ||
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| Instead of explicitly setting the cache variables, the following variables | ||
| may be provided to tell this module where to look. | ||
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| ``Blosc_ROOT`` | ||
| Preferred installation prefix. | ||
| ``BLOSC_INCLUDEDIR`` | ||
| Preferred include directory e.g. <prefix>/include | ||
| ``BLOSC_LIBRARYDIR`` | ||
| Preferred library directory e.g. <prefix>/lib | ||
| ``SYSTEM_LIBRARY_PATHS`` | ||
| Global list of library paths intended to be searched by and find_xxx call | ||
| ``BLOSC_USE_STATIC_LIBS`` | ||
| Only search for static blosc libraries | ||
| ``BLOSC_USE_EXTERNAL_SOURCES`` | ||
| Set to ON if Blosc has been built using external sources for LZ4, snappy, | ||
| zlib and zstd. Default is OFF. | ||
| ``DISABLE_CMAKE_SEARCH_PATHS`` | ||
| Disable CMakes default search paths for find_xxx calls in this module | ||
|
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| #]=======================================================================] | ||
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| cmake_minimum_required(VERSION 3.3) | ||
| include(GNUInstallDirs) | ||
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| # Monitoring <PackageName>_ROOT variables | ||
| if(POLICY CMP0074) | ||
| cmake_policy(SET CMP0074 NEW) | ||
| endif() | ||
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| mark_as_advanced( | ||
| Blosc_INCLUDE_DIR | ||
| Blosc_LIBRARY | ||
| ) | ||
|
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| set(_FIND_BLOSC_ADDITIONAL_OPTIONS "") | ||
| if(DISABLE_CMAKE_SEARCH_PATHS) | ||
| set(_FIND_BLOSC_ADDITIONAL_OPTIONS NO_DEFAULT_PATH) | ||
| endif() | ||
|
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| # Set _BLOSC_ROOT based on a user provided root var. Xxx_ROOT and ENV{Xxx_ROOT} | ||
| # are prioritised over the legacy capitalized XXX_ROOT variables for matching | ||
| # CMake 3.12 behaviour | ||
| # @todo deprecate -D and ENV BLOSC_ROOT from CMake 3.12 | ||
| if(Blosc_ROOT) | ||
| set(_BLOSC_ROOT ${Blosc_ROOT}) | ||
| elseif(DEFINED ENV{Blosc_ROOT}) | ||
| set(_BLOSC_ROOT $ENV{Blosc_ROOT}) | ||
| elseif(BLOSC_ROOT) | ||
| set(_BLOSC_ROOT ${BLOSC_ROOT}) | ||
| elseif(DEFINED ENV{BLOSC_ROOT}) | ||
| set(_BLOSC_ROOT $ENV{BLOSC_ROOT}) | ||
| endif() | ||
|
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| # Additionally try and use pkconfig to find blosc | ||
| if(USE_PKGCONFIG) | ||
| if(NOT DEFINED PKG_CONFIG_FOUND) | ||
| find_package(PkgConfig) | ||
| endif() | ||
| pkg_check_modules(PC_Blosc QUIET blosc) | ||
| endif() | ||
|
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| # ------------------------------------------------------------------------ | ||
| # Search for blosc include DIR | ||
| # ------------------------------------------------------------------------ | ||
|
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| set(_BLOSC_INCLUDE_SEARCH_DIRS "") | ||
| list(APPEND _BLOSC_INCLUDE_SEARCH_DIRS | ||
| ${BLOSC_INCLUDEDIR} | ||
| ${_BLOSC_ROOT} | ||
| ${PC_Blosc_INCLUDE_DIRS} | ||
| ${SYSTEM_LIBRARY_PATHS} | ||
| ) | ||
|
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| # Look for a standard blosc header file. | ||
| find_path(Blosc_INCLUDE_DIR blosc.h | ||
| ${_FIND_BLOSC_ADDITIONAL_OPTIONS} | ||
| PATHS ${_BLOSC_INCLUDE_SEARCH_DIRS} | ||
| PATH_SUFFIXES ${CMAKE_INSTALL_INCLUDEDIR} include | ||
| ) | ||
|
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| if(EXISTS "${Blosc_INCLUDE_DIR}/blosc.h") | ||
| file(STRINGS "${Blosc_INCLUDE_DIR}/blosc.h" | ||
| _blosc_version_major_string REGEX "#define BLOSC_VERSION_MAJOR +[0-9]+ " | ||
| ) | ||
| string(REGEX REPLACE "#define BLOSC_VERSION_MAJOR +([0-9]+).*$" "\\1" | ||
| _blosc_version_major_string "${_blosc_version_major_string}" | ||
| ) | ||
| string(STRIP "${_blosc_version_major_string}" Blosc_VERSION_MAJOR) | ||
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| file(STRINGS "${Blosc_INCLUDE_DIR}/blosc.h" | ||
| _blosc_version_minor_string REGEX "#define BLOSC_VERSION_MINOR +[0-9]+ " | ||
| ) | ||
| string(REGEX REPLACE "#define BLOSC_VERSION_MINOR +([0-9]+).*$" "\\1" | ||
| _blosc_version_minor_string "${_blosc_version_minor_string}" | ||
| ) | ||
| string(STRIP "${_blosc_version_minor_string}" Blosc_VERSION_MINOR) | ||
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| unset(_blosc_version_major_string) | ||
| unset(_blosc_version_minor_string) | ||
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| set(Blosc_VERSION ${Blosc_VERSION_MAJOR}.${Blosc_VERSION_MINOR}) | ||
| endif() | ||
|
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| # ------------------------------------------------------------------------ | ||
| # Search for blosc lib DIR | ||
| # ------------------------------------------------------------------------ | ||
|
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| set(_BLOSC_LIBRARYDIR_SEARCH_DIRS "") | ||
| list(APPEND _BLOSC_LIBRARYDIR_SEARCH_DIRS | ||
| ${BLOSC_LIBRARYDIR} | ||
| ${_BLOSC_ROOT} | ||
| ${PC_Blosc_LIBRARY_DIRS} | ||
| ${SYSTEM_LIBRARY_PATHS} | ||
| ) | ||
|
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| # Library suffix handling | ||
|
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| set(_BLOSC_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES}) | ||
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| if(WIN32) | ||
| if(BLOSC_USE_STATIC_LIBS) | ||
| set(CMAKE_FIND_LIBRARY_SUFFIXES ".lib") | ||
| endif() | ||
| else() | ||
| if(BLOSC_USE_STATIC_LIBS) | ||
| set(CMAKE_FIND_LIBRARY_SUFFIXES ".a") | ||
| endif() | ||
| endif() | ||
|
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| # libblosc is the name of the blosc static lib on windows | ||
|
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| find_library(Blosc_LIBRARY blosc libblosc | ||
| ${_FIND_BLOSC_ADDITIONAL_OPTIONS} | ||
| PATHS ${_BLOSC_LIBRARYDIR_SEARCH_DIRS} | ||
| PATH_SUFFIXES ${CMAKE_INSTALL_LIBDIR} lib64 lib | ||
| ) | ||
|
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| # Reset library suffix | ||
|
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| set(CMAKE_FIND_LIBRARY_SUFFIXES ${_BLOSC_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES}) | ||
| unset(_BLOSC_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES) | ||
|
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| # ------------------------------------------------------------------------ | ||
| # Cache and set Blosc_FOUND | ||
| # ------------------------------------------------------------------------ | ||
|
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| include(FindPackageHandleStandardArgs) | ||
| find_package_handle_standard_args(Blosc | ||
| FOUND_VAR Blosc_FOUND | ||
| REQUIRED_VARS | ||
| Blosc_LIBRARY | ||
| Blosc_INCLUDE_DIR | ||
| VERSION_VAR Blosc_VERSION | ||
| ) | ||
|
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| if(Blosc_FOUND) | ||
| # Configure lib type. If XXX_USE_STATIC_LIBS, we always assume a static | ||
| # lib is in use. If win32, we can't mark the import .libs as shared, so | ||
| # these are always marked as UNKNOWN. Otherwise, infer from extension. | ||
| set(BLOSC_LIB_TYPE UNKNOWN) | ||
| if(BLOSC_USE_STATIC_LIBS) | ||
| set(BLOSC_LIB_TYPE STATIC) | ||
| elseif(UNIX) | ||
| get_filename_component(_BLOSC_EXT ${Blosc_LIBRARY} EXT) | ||
| if(_BLOSC_EXT STREQUAL ".a") | ||
| set(BLOSC_LIB_TYPE STATIC) | ||
| elseif(_BLOSC_EXT STREQUAL ".so" OR | ||
| _BLOSC_EXT STREQUAL ".dylib") | ||
| set(BLOSC_LIB_TYPE SHARED) | ||
| endif() | ||
| endif() | ||
|
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| set(Blosc_LIBRARIES ${Blosc_LIBRARY}) | ||
| set(Blosc_INCLUDE_DIRS ${Blosc_INCLUDE_DIR}) | ||
|
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| get_filename_component(Blosc_LIBRARY_DIRS ${Blosc_LIBRARY} DIRECTORY) | ||
|
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| if(NOT TARGET Blosc::blosc) | ||
| add_library(Blosc::blosc ${BLOSC_LIB_TYPE} IMPORTED) | ||
| set_target_properties(Blosc::blosc PROPERTIES | ||
| IMPORTED_LOCATION "${Blosc_LIBRARIES}" | ||
| INTERFACE_COMPILE_OPTIONS "${PC_Blosc_CFLAGS_OTHER}" | ||
| INTERFACE_INCLUDE_DIRECTORIES "${Blosc_INCLUDE_DIRS}" | ||
| ) | ||
|
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| # Blosc may optionally be compiled with external sources for | ||
| # lz4, snappy, zlib and zstd. Add them as interface libs if | ||
| # requested (there doesn't seem to be a way to figure this | ||
| # out automatically). | ||
| if(BLOSC_USE_EXTERNAL_SOURCES) | ||
| set_target_properties(Blosc::blosc PROPERTIES | ||
| INTERFACE_LINK_DIRECTORIES "${Blosc_LIBRARY_DIRS}" | ||
| INTERFACE_LINK_LIBRARIES "lz4;snappy;zlib;zstd" | ||
| ) | ||
| endif() | ||
| endif() | ||
| elseif(Blosc_FIND_REQUIRED) | ||
| message(FATAL_ERROR "Unable to find Blosc") | ||
| endif() |
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