Use external cmake to point to extensions to be built

Author: carlopi

.github/workflows/main.yml

@@ -510,7 +510,6 @@ jobs:
 
             - name: Build Wasm module
               run: |
-                  cp .github/config/extension_config_wasm.cmake submodules/duckdb/extension/extension_config.cmake
                   DUCKDB_PLATFORM="wasm_mvp" DUCKDB_WASM_LOADABLE_EXTENSIONS=1 GEN=ninja ./scripts/wasm_build_lib.sh relsize mvp
 
             - name: Upload artifact
@@ -554,7 +553,6 @@ jobs:
 
             - name: Build Wasm module
               run: |
-                  cp .github/config/extension_config_wasm.cmake submodules/duckdb/extension/extension_config.cmake
                   DUCKDB_PLATFORM="wasm_eh" DUCKDB_WASM_LOADABLE_EXTENSIONS=1 GEN=ninja ./scripts/wasm_build_lib.sh relsize eh
 
             - name: Upload artifact
@@ -598,7 +596,6 @@ jobs:
 
             - name: Build Wasm module
               run: |
-                  cp .github/config/extension_config_wasm.cmake submodules/duckdb/extension/extension_config.cmake
                   DUCKDB_PLATFORM="wasm_threads" DUCKDB_WASM_LOADABLE_EXTENSIONS="signed" GEN=ninja ./scripts/wasm_build_lib.sh relsize coi
 
             - name: Upload artifact

Makefile

@@ -357,7 +357,6 @@ app: wasm wasmpack shell docs js_tests_release
 	yarn workspace @duckdb/duckdb-wasm-app build:release
 
 build_loadable:
-	cp .github/config/extension_config_wasm.cmake submodules/duckdb/extension/extension_config.cmake
 	DUCKDB_PLATFORM=wasm_${TARGET} DUCKDB_WASM_LOADABLE_EXTENSIONS=1 GEN=ninja ./scripts/wasm_build_lib.sh relsize ${TARGET}
 
 build_loadable_unsigned: build_loadable

.github/config/extension_config_wasm.cmake renamed to extension_config_wasm.cmake

@@ -61,6 +61,7 @@ emcmake cmake \
     -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
     -DDUCKDB_LOCATION=${DUCKDB_LOCATION} \
     -DWASM_LINK_FLAGS_EXT="${LINK_FLAGS}" \
+    -DDUCKDB_EXTENSION_CONFIGS=extension_config_wasm.cmake \
     ${ADDITIONAL_FLAGS}
 
 emmake make \