cmake: add fallback configs for opencollada (similar to 05ba93ab6)

add

cmake/CMakeLists.txt

@@ -326,22 +326,7 @@ if (WITH_ROCKSDB)
     else()
         message(FATAL_ERROR "RocksDB found but neither RocksDB::rocksdb nor RocksDB::rocksdb-shared target exists")
     endif()
-    # Our win/build-deps.py builds RocksDB separately per Debug/Release config into the
-    # same install prefix, so the imported target only ever has DEBUG and RELEASE listed in
-    # IMPORTED_CONFIGURATIONS. On a multi-config generator (Visual Studio), CMake maps any
-    # unmatched build config to the *first* entry of that list, which happens to be DEBUG
-    # (RocksDBTargets-debug.cmake sorts before RocksDBTargets-release.cmake). Without an
-    # explicit mapping, RelWithDebInfo and MinSizeRel builds would end up linking the
-    # /MDd-flavored rocksdb_d.lib into an /MD (NDEBUG) binary, causing a CRT/runtime-library
-    # mismatch that depends on nothing but that alphabetical ordering.
-    #
-    # Important: we're mixing up MinSizeRel to RelWithDebInfo targets and vice versa, because
-    # multi-config builds always define targets for each config and it has to be able to find a fallback,
-    # otherwise configuration would fail.
-    set_target_properties(${IFCOPENSHELL_ROCKSDB_IMPORTED_TARGET} PROPERTIES
-        MAP_IMPORTED_CONFIG_RELWITHDEBINFO "RELWITHDEBINFO;RELEASE;MINSIZEREL"
-        MAP_IMPORTED_CONFIG_MINSIZEREL "MINSIZEREL;RELEASE;RELWITHDEBINFO"
-    )
+    avoid_debug_imported_config_fallback(${IFCOPENSHELL_ROCKSDB_IMPORTED_TARGET})
     target_link_libraries(IFCOPENSHELL_RocksDB INTERFACE ${IFCOPENSHELL_ROCKSDB_IMPORTED_TARGET})
 
     if (WITH_ZSTD)

cmake/FindOpenCOLLADA.cmake

@@ -24,6 +24,7 @@ if(NOT OPENCOLLADA_INCLUDE_DIR AND NOT OPENCOLLADA_LIBRARY_DIR)
     if(OpenCOLLADA_DIR)
         message(STATUS "Found OpenCOLLADA: '${OpenCOLLADA_DIR}'.")
         set(OPENCOLLADA_FOUND TRUE)
+        avoid_debug_imported_config_fallback(${OPENCOLLADA_LIBRARIES})
     else()
         message(STATUS "OpenCOLLADA package not found, falling back to manual search.")
     endif()

cmake/utilities.cmake

@@ -254,6 +254,33 @@ function(get_debug_variant NAME LIBRARY POSTFIX)
     set(${NAME} "${LIBRARY}" PARENT_SCOPE)
 endfunction()
 
+# When building specified config, cmake first tries to find target config by the exact match
+# (e.g. to find `-relwithdebinfo.cmake` dependency for RelWithDebInfo build),
+# but if it fails, it falls back to the first cmake config it can find, alphabetically.
+# If there's a Debug config, then it ends up pulling Debug build as the default.
+# Which is critical on Windows if dependency is using CRT - linking will fail due to a CRT mismatch.
+# To resolve this, we allow `RelWithDebInfo`, `MinSizeRel` to fallback to `Release`.
+#
+# Especially important on a multi-config generator (e.g. Visual Studio),
+# when cmake has to define targets for each possible config.
+# Without this fallback, user would need to build each dependency for each of 4 configs
+# to guarantee switching between them won't break.
+# And in some cases it's not even possible (e.g. OpenCOLLADA hardcodes only Release/Debug builds).
+#
+# Important: we're mixing up MinSizeRel to RelWithDebInfo targets and vice versa, because
+# by setting `MAP_IMPORTED_CONFIG_` we override the fallback, but multi-config builds
+# has to be able to find a way to build a target for each config, otherwise configuration would fail.
+function(avoid_debug_imported_config_fallback)
+    foreach(_target ${ARGN})
+        if(TARGET ${_target})
+            set_target_properties(${_target} PROPERTIES
+                MAP_IMPORTED_CONFIG_RELWITHDEBINFO "RELWITHDEBINFO;RELEASE;MINSIZEREL"
+                MAP_IMPORTED_CONFIG_MINSIZEREL "MINSIZEREL;RELEASE;RELWITHDEBINFO"
+            )
+        endif()
+    endforeach()
+endfunction()
+
 function(files_for_ifc_version IFC_VERSION RESULT_NAME)
     set(IFC_PARSE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../src/ifcparse)
     set(${RESULT_NAME}