Blender build data

blender-build/build_environment/cmake/blosc.cmake

@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+set(BLOSC_EXTRA_ARGS
+  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+  -DBUILD_TESTS=OFF
+  -DBUILD_BENCHMARKS=OFF
+  -DCMAKE_DEBUG_POSTFIX=_d
+  -DThreads_FOUND=1
+  -DPTHREAD_LIBS=${LIBDIR}/pthreads/lib/pthreadVC3.lib
+  -DPTHREAD_INCLUDE_DIR=${LIBDIR}/pthreads/inc
+  -DDEACTIVATE_SNAPPY=ON
+  -DCMAKE_POSITION_INDEPENDENT_CODE=ON
+)
+
+# Prevent blosc from including its own local copy of zlib in the object file
+# and cause linker errors with everybody else.
+set(BLOSC_EXTRA_ARGS ${BLOSC_EXTRA_ARGS}
+  -DPREFER_EXTERNAL_ZLIB=ON
+)
+
+ExternalProject_Add(external_blosc
+  URL file://${PACKAGE_DIR}/${BLOSC_FILE}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH ${BLOSC_HASH_TYPE}=${BLOSC_HASH}
+  PREFIX ${BUILD_DIR}/blosc
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blosc ${DEFAULT_CMAKE_FLAGS} ${BLOSC_EXTRA_ARGS}
+  INSTALL_DIR ${LIBDIR}/blosc
+)
+
+add_dependencies(
+  external_blosc
+  external_zlib
+)
+if(WIN32)
+  add_dependencies(
+    external_blosc
+    external_pthreads
+  )
+endif()