Add bin and edit workflow

bin/gems/rake-13.4.2/doc/example/Rakefile1

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+# Example Rakefile -*- ruby -*-
+
+task :default => [:main]
+
+file "a.o" => ["a.c"] do |t|
+  src = t.name.sub(/\.o$/, '.c')
+  sh "gcc #{src} -c -o #{t.name}"
+end
+
+file "b.o" => ["b.c"] do |t|
+  src = t.name.sub(/\.o$/, '.c')
+  sh "gcc #{src} -c -o #{t.name}"
+end
+
+file "main.o" => ["main.c"] do |t|
+  src = t.name.sub(/\.o$/, '.c')
+  sh "gcc #{src} -c -o #{t.name}"
+end
+
+OBJFILES = ["a.o", "b.o", "main.o"]
+task :obj => OBJFILES
+
+file "main" => OBJFILES do |t|
+  sh "gcc -o #{t.name} main.o a.o b.o"
+end
+
+task :clean do
+  rm_f FileList['*.o']
+  Dir['*~'].each { |fn| rm_f fn }
+end
+
+task :clobber => [:clean] do
+  rm_f "main"
+end
+
+task :run => ["main"] do
+  sh "./main"
+end

bin/gems/rake-13.4.2/doc/example/Rakefile2

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+# Example Rakefile -*- ruby -*-
+# Using the power of Ruby
+
+task :default => [:main]
+
+def ext(fn, newext)
+  fn.sub(/\.[^.]+$/, newext)
+end
+
+SRCFILES = Dir['*.c']
+OBJFILES = SRCFILES.collect { |fn| ext(fn,".o") }
+
+OBJFILES.each do |objfile|
+  srcfile = ext(objfile, ".c")
+  file objfile => [srcfile] do |t|
+    sh "gcc #{srcfile} -c -o #{t.name}"
+  end
+end
+
+file "main" => OBJFILES do |t|
+  sh "gcc -o #{t.name} main.o a.o b.o"
+end
+
+task :clean do
+  rm_f FileList['*.o']
+  Dir['*~'].each { |fn| rm_f fn }
+end
+
+task :clobber => [:clean] do
+  rm_f "main"
+end
+
+task :run => ["main"] do
+  sh "./main"
+end

bin/gems/rake-13.4.2/doc/example/a.c

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+#include <stdio.h>
+
+void a()
+{
+    printf ("In function a\n");
+}

bin/gems/rake-13.4.2/doc/example/b.c

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+#include <stdio.h>
+
+void b()
+{
+    printf ("In function b\n");
+}

bin/gems/rake-13.4.2/doc/example/main.c

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+#include <stdio.h>
+
+extern void a();
+extern void b();
+
+int main ()
+{
+    a();
+    b();
+    return 0;
+}