diff --git a/recipes/recipes_emscripten/fricas0-data/build.sh b/recipes/recipes_emscripten/fricas0-data/build.sh
index 4d2f820201..c3bb987c25 100644
--- a/recipes/recipes_emscripten/fricas0-data/build.sh
+++ b/recipes/recipes_emscripten/fricas0-data/build.sh
@@ -1,14 +1,6 @@
 #!/usr/bin/env bash
 set -euxo pipefail
 
-cd "${SRC_DIR}"
-
-ecl -eval '(progn (load "lisp/load-lisp.lisp") (load "lisp/compile-interp.lisp") (quit))'
-echo ')lisp (progn (load "lisp/compile-algebra.lisp") (quit))' | ecl -load fricas
-
-find interp -maxdepth 1 -type f -name "*.lisp" -delete
-find algebra -maxdepth 1 -type f -name "*.lsp" -delete
-
 DATA_DIR="$PREFIX/share/fricas0-data"
 mkdir -p "$DATA_DIR"
 
diff --git a/recipes/recipes_emscripten/fricas0-data/recipe.yaml b/recipes/recipes_emscripten/fricas0-data/recipe.yaml
index 9f01f76fe7..7aab57c379 100644
--- a/recipes/recipes_emscripten/fricas0-data/recipe.yaml
+++ b/recipes/recipes_emscripten/fricas0-data/recipe.yaml
@@ -11,13 +11,11 @@ source:
   sha256: a26f48558c5b4fe346382cb0d7fa24b638e1a89f3396be8049dc4add9dbda57e
 
 build:
-  number: 0
+  number: 1
   noarch: generic
 
 requirements:
   build:
-  - ecl
-  - ${{ compiler('cxx') }}
 
 tests:
 - package_contents:
diff --git a/recipes/recipes_emscripten/fricas0-ecl/build.sh b/recipes/recipes_emscripten/fricas0-ecl/build.sh
index 6da4b6346d..0bf2f728f4 100644
--- a/recipes/recipes_emscripten/fricas0-ecl/build.sh
+++ b/recipes/recipes_emscripten/fricas0-ecl/build.sh
@@ -23,6 +23,15 @@ make install
 
 export ECL_TO_RUN="${HOST_ECL_PREFIX}/bin/ecl"
 
+cd ./fricas0-data
+
+$ECL_TO_RUN -eval '(progn (load "lisp/load-lisp.lisp") (load "lisp/compile-interp.lisp") (quit))'
+echo ')lisp (progn (load "lisp/compile-algebra.lisp") (quit))' | $ECL_TO_RUN -load fricas
+
+find interp -maxdepth 1 -type f -name "*.lisp" -delete
+find algebra -maxdepth 1 -type f -name "*.lsp" -delete
+cd ..
+
 make distclean || true
 
 # strip the x32 ABI suffix that GMP's sub-configure can't handle.
@@ -59,4 +68,4 @@ python3 "${EMSCRIPTEN_DIR}/tools/file_packager.py" \
   --preload "${SRC_DIR}/fricas0-data@/fricas0-data" \
   --js-output="${PREFIX}/bin/ecl.data.js"
 
-cp -r "web"/* "${PREFIX}/bin/"
\ No newline at end of file
+cp -r "web"/* "${PREFIX}/bin/"
diff --git a/recipes/recipes_emscripten/fricas0-ecl/recipe.yaml b/recipes/recipes_emscripten/fricas0-ecl/recipe.yaml
index 02189d6045..c15bcf5c38 100644
--- a/recipes/recipes_emscripten/fricas0-ecl/recipe.yaml
+++ b/recipes/recipes_emscripten/fricas0-ecl/recipe.yaml
@@ -12,13 +12,15 @@ source:
   target_directory: web
 
 build:
-  number: 0
+  number: 1
 
 requirements:
   build:
   - ${{ compiler("c") }}
   - make
   - pkg-config
+  - gcc
+  - gxx
   host:
   - gmp
   - libffi
@@ -43,4 +45,4 @@ about:
 extra:
   recipe-maintainers:
   - oldk1331
-  - wangyenshu
+  - wangyenshu
\ No newline at end of file