Merge pull request #1979 from philippremy/bits/ocio-depbuild-fix

[FIX] Explicitly set CMAKE_INSTALL_PREFIX for OpenColorIO

Author: servantftransperfect

src/cmake/Dependencies.cmake

@@ -1157,7 +1157,7 @@ if(AV_BUILD_OPENCOLORIO)
             -DOCIO_BUILD_PYTHON=OFF
             -DOCIO_INSTALL_EXT_PACKAGES=MISSING
             -DCMAKE_CXX_STANDARD=17
-            <SOURCE_DIR>
+            -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR> <SOURCE_DIR>
 
         # TODO: build with libheif
         BUILD_COMMAND $(MAKE) -j${AV_BUILD_DEPENDENCIES_PARALLEL}