Add flatbuffers

Author: IsabelParedes

recipes/recipes_emscripten/flatbuffers/build.sh

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+mkdir build
+cd build
+
+# Configure step
+emcmake cmake ${CMAKE_ARGS} ..              \
+    -GNinja                         \
+    -DCMAKE_PREFIX_PATH:PATH=${PREFIX} \
+    -DCMAKE_INSTALL_PREFIX:PATH=${PREFIX} \
+    -DCMAKE_INSTALL_LIBDIR=lib \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DBUILD_SHARED_LIBS=FALSE \
+    -DFLATBUFFERS_BUILD_TESTS=OFF \
+    -DFLATBUFFERS_BUILD_FLATC=ON \
+    # -DCMAKE_EXE_LINKER_FLAGS="-s EXPORT_ES6=1 -s USE_ES6_IMPORT_META=1 -s STANDALONE_WASM=1" \
+
+# Build step
+emmake ninja install
+
+# Copy wasm file also
+cp ./flatc.wasm $PREFIX/bin/

recipes/recipes_emscripten/flatbuffers/recipe.yaml

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+context:
+  version: 25.9.23
+  name: flatbuffers
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+
+source:
+  url: https://github.com/google/${{ name }}/archive/refs/tags/v${{ version }}.tar.gz
+  sha256: 9102253214dea6ae10c2ac966ea1ed2155d22202390b532d1dea64935c518ada
+
+build:
+  number: 0
+
+requirements:
+  build:
+  - ${{ compiler("cxx") }}
+  - cmake
+  - ninja
+
+tests:
+- package_contents:
+    files:
+    - bin/flatc.js
+    - bin/flatc.wasm
+    - lib/libflatbuffers.a
+    - include/flatbuffers/flatbuffers.h
+
+about:
+  license: Apache-2.0
+  license_file: LICENSE
+  summary: 'FlatBuffers: Memory Efficient Serialization Library'
+  description: |
+    FlatBuffers is a cross platform serialization library architected for
+    maximum memory efficiency. It allows you to directly access serialized data
+    without parsing/unpacking it first, while still having great forwards/
+    backwards compatibility.
+  homepage: https://flatbuffers.dev
+
+extra:
+  recipe-maintainers:
+  - Alex-PLACET
+