new file: projects/github.com/protobuf-c/protobuf-c/package.yml

new file:   projects/github.com/protobuf-c/protobuf-c/test.proto

projects/github.com/protobuf-c/protobuf-c/package.yml

@@ -0,0 +1,26 @@
+distributable:
+  url: https://github.com/protobuf-c/protobuf-c/releases/download/v{{version}}/protobuf-c-{{version}}.tar.gz
+  strip-components: 1
+versions:
+  github: protobuf-c/protobuf-c
+dependencies:
+  protobuf.dev: ^25.1
+build:
+  script:
+    - ./configure $CONFIGURE_ARGS
+    - make --jobs {{ hw.concurrency }} install
+  env:
+    # https://github.com/protocolbuffers/protobuf/issues/9947
+    CFLAGS: "$CFLAGS -DNDEBUG"
+    CONFIGURE_ARGS:
+      - --disable-dependency-tracking
+      - --prefix="{{prefix}}"
+      - --libdir="{{prefix}}/lib"
+provides:
+  - bin/protoc-c
+  - bin/protoc-gen-c
+test:
+  script:
+    - protoc-c test.proto --c_out=.
+    - ls | grep test.pb-c.c
+    - protoc-c --version | grep {{version}}

projects/github.com/protobuf-c/protobuf-c/test.proto

@@ -0,0 +1,8 @@
+syntax = "proto3";
+package test;
+message TestCase {
+    string name = 4;
+}
+message Test {
+    repeated TestCase case = 1;
+}