Add build test source file to tools dir & hello_world_chromebrew build test package (#9316)

* Add build test source file to tests

Signed-off-by: Satadru Pramanik <satadru@gmail.com>

* move file to tools

Signed-off-by: Satadru Pramanik <satadru@gmail.com>

* add descriptive header

Signed-off-by: Satadru Pramanik <satadru@gmail.com>

* Add hello_world_chromebrew package

Signed-off-by: Satadru Pramanik <satadru@gmail.com>

---------

Signed-off-by: Satadru Pramanik <satadru@gmail.com>

packages/hello_world_chromebrew.rb

@@ -0,0 +1,57 @@
+require 'package'
+
+class Hello_world_chromebrew < Package
+  description 'Chromebrew Package Build Test (for use in PR Actions)'
+  homepage 'https://github.com/chromebrew/chromebrew'
+  version '1.0'
+  license 'MIT'       # Package license (eg. GPL-3, MIT, etc.)
+  compatibility 'all' # Package architecture compatibility (eg. aarch64, armv7l, i686, x86_64 or all)
+  source_url 'https://github.com/chromebrew/chromebrew/raw/master/tools/hello_world_chromebrew.c'
+  source_sha256 'ff3632aba26639630ff8c1d91ebc168e185c2cb4fda8c856e61f33d53215aac3'
+  binary_compression 'tar.zst'
+
+  # These are needed to successfully build and check for dependencies.
+  binary_sha256({
+    aarch64: '000',
+     armv7l: '000',
+       i686: '111',
+     x86_64: '222'
+  })
+
+  # Register dependencies (use the following line as a basis)
+  #
+  # Runtime dependencies:
+  # depends_on '*' # R
+  # Build dependencies:
+  # depends_on '*' => :build
+  #
+
+  # Function to perform patch operations prior to build from source.
+  def self.patch
+    system "sed -i 's/Hello Chromebrew/Hello, Chromebrew/' hello_world_chromebrew.c"
+  end
+
+  # Function to perform pre-build operations prior to build from source.
+  def self.prebuild; end
+
+  # Function to perform build from source.
+  def self.build
+    system 'gcc -o hello hello_world_chromebrew.c'
+  end
+
+  # Function to perform check from source build.
+  # This is executed only during `crew build`.
+  def self.check
+    system "#{CREW_PREFIX}/bin/hello"
+  end
+
+  # Function to perform install from source build.
+  def self.install
+    FileUtils.install 'hello', "#{CREW_DEST_PREFIX}/bin/hello_chromebrew", mode: 0o755
+  end
+
+  # Function to perform post-install for both source build and binary distribution
+  def self.postinstall
+    system "#{CREW_PREFIX}/bin/hello"
+  end
+end

tools/hello_world_chromebrew.c

@@ -0,0 +1,8 @@
+/* This file is used by the hello_world_chromebrew build test package.
+   It should be kept in tools/hello_world_chromebrew.c
+*/
+#include <stdio.h>
+int main() {
+   printf("Hello Chromebrew!");
+   return 0;
+}