Add alternative main() for a simple `cat' program
diff --git a/fscat.gpr b/fscat.gpr
new file mode 100644
index 0000000..67c92ac
--- /dev/null
+++ b/fscat.gpr
@@ -0,0 +1,15 @@
+project Default is
+   for Languages use ("ada", "c");
+   for Main use ("cat.c");
+   for Source_Dirs use ("src");
+   for Object_Dir use "build";
+
+   package Builder is
+      for Global_Configuration_Pragmas use "default.adc";
+   end Builder;
+
+   package Compiler is
+      for Switches ("Ada") use ("-gnat2022");
+   end Compiler;
+
+end Default;