# The unix common part expects DEP_CMAKE_OPTS to be set

if (MINGW)
    set(TBB_MINGW_WORKAROUND "-flifetime-dse=1")
else ()
    set(TBB_MINGW_WORKAROUND "")
endif ()

find_package(ZLIB QUIET)
if (NOT ZLIB_FOUND)
    message(WARNING "No ZLIB dev package found in system, building static library. You should install the system package.")
endif ()

# TODO Evaluate expat modifications in the bundled version and test with system versions in various distros and OSX SDKs
# find_package(EXPAT QUIET)
# if (NOT EXPAT_FOUND)
#     message(WARNING "No EXPAT dev package found in system, building static library. Consider installing the system package.")
# endif ()

# ExternalProject_Add(dep_cereal
#     EXCLUDE_FROM_ALL 1
#     URL "https://github.com/USCiLab/cereal/archive/v1.2.2.tar.gz"
# #    URL_HASH SHA256=c6dd7a5701fff8ad5ebb45a3dc8e757e61d52658de3918e38bab233e7fd3b4ae
#     CMAKE_ARGS
#         -DJUST_INSTALL_CEREAL=on
#         -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
#         ${DEP_CMAKE_OPTS}
# )

# ExternalProject_Add(dep_qhull
#     EXCLUDE_FROM_ALL 1
#     #URL "https://github.com/qhull/qhull/archive/v7.3.2.tar.gz"
#     #URL_HASH SHA256=619c8a954880d545194bc03359404ef36a1abd2dde03678089459757fd790cb0
#     GIT_REPOSITORY  https://github.com/qhull/qhull.git
#     GIT_TAG         7afedcc73666e46a9f1d74632412ebecf53b1b30 # v7.3.2 plus the mac build patch
#     CMAKE_ARGS
#         -DBUILD_SHARED_LIBS=OFF
#         -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
#         ${DEP_CMAKE_OPTS}
# )

# ExternalProject_Add(dep_blosc
#     EXCLUDE_FROM_ALL 1
#     GIT_REPOSITORY https://github.com/Blosc/c-blosc.git
#     GIT_TAG e63775855294b50820ef44d1b157f4de1cc38d3e #v1.17.0
#     DEPENDS
#     CMAKE_ARGS
#         -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
#         -DBUILD_SHARED_LIBS=OFF
#         -DCMAKE_POSITION_INDEPENDENT_CODE=ON
#         -DCMAKE_DEBUG_POSTFIX=d
#         -DBUILD_SHARED=OFF 
#         -DBUILD_STATIC=ON
#         -DBUILD_TESTS=OFF 
#         -DBUILD_BENCHMARKS=OFF 
#         -DPREFER_EXTERNAL_ZLIB=ON
#     PATCH_COMMAND       ${GIT_EXECUTABLE} reset --hard && git clean -df && 
#                         ${GIT_EXECUTABLE} apply --whitespace=fix ${CMAKE_CURRENT_SOURCE_DIR}/blosc-mods.patch
# )

# ExternalProject_Add(dep_openexr
#     EXCLUDE_FROM_ALL 1
#     GIT_REPOSITORY https://github.com/openexr/openexr.git
#     GIT_TAG eae0e337c9f5117e78114fd05f7a415819df413a #v2.4.0 
#     CMAKE_ARGS
#         -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
#         -DBUILD_SHARED_LIBS=OFF
#         -DCMAKE_POSITION_INDEPENDENT_CODE=ON
#         -DBUILD_TESTING=OFF 
#         -DPYILMBASE_ENABLE:BOOL=OFF 
#         -DOPENEXR_VIEWERS_ENABLE:BOOL=OFF
#         -DOPENEXR_BUILD_UTILS:BOOL=OFF
# )

# ExternalProject_Add(dep_openvdb
#     EXCLUDE_FROM_ALL 1
#     GIT_REPOSITORY https://github.com/AcademySoftwareFoundation/openvdb.git
#     GIT_TAG aebaf8d95be5e57fd33949281ec357db4a576c2e #v6.2.1
#     DEPENDS dep_blosc dep_openexr
#     CMAKE_ARGS
#         -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr/local
#         -DCMAKE_DEBUG_POSTFIX=d
#         -DCMAKE_PREFIX_PATH=${DESTDIR}/usr/local
#         -DBUILD_SHARED_LIBS=OFF
#         -DCMAKE_POSITION_INDEPENDENT_CODE=ON
#         -DOPENVDB_BUILD_PYTHON_MODULE=OFF 
#         -DUSE_BLOSC=ON 
#         -DOPENVDB_CORE_SHARED=OFF 
#         -DOPENVDB_CORE_STATIC=ON 
#         -DTBB_STATIC=ON
#         -DOPENVDB_BUILD_VDB_PRINT=ON
#         -DDISABLE_DEPENDENCY_VERSION_CHECKS=ON
#     PATCH_COMMAND PATCH_COMMAND     ${GIT_EXECUTABLE} checkout -f -- . && git clean -df && 
#                                     ${GIT_EXECUTABLE} apply --whitespace=fix ${CMAKE_CURRENT_SOURCE_DIR}/openvdb-mods.patch
# )