chore: add README for s4c-animate folder

s4c-animate/README.md

@@ -0,0 +1,25 @@
+# s4c-animate
+
+  Before `0.4.8`, this module was the main library in this repo. Now, it's been absorbed into `src/s4c.h`.
+
+  In the upcoming `0.5` release, this temporary stub file will be removed.
+
+  All previous APIs will still be available in the new module, but some macros may be renamed to better namespace the new module.
+
+  A list of all updated identifiers follows.
+
+
+  ```c
+  S4C_MAJOR  // Dropped
+  S4C_MINOR // Dropped
+  S4C_PATCH // Dropped
+  S4C_VERSION // Renamed to S4C_ANIMATE_VERSION
+  S4C_MAJOR_VERSION // Renamed to S4C_ANIMATE_MAJOR_VERSION
+  S4C_MINOR_VERSION // Renamed to S4C_ANIMATE_MINOR_VERSION
+  S4C_PATCH_VERSION // Renamed to S4C_ANIMATE_PATCH_VERSION
+  int_s4c_version() // Renamed to int_s4c_animate_version()
+  s4c_printVersionToFile() // Renamed to s4c_animate_printVersionToFile()
+  s4c_echoVersionToFile() // Renamed to s4c_animate_echoVersionToFile()
+  S4C_ECHOVERSION() // Renamed to S4C_ANIMATE_ECHOVERSION()
+  S4C_PRINTVERSION() // Renamed to S4C_ANIMATE_PRINTVERSION()
+  ```

s4c-animate/animate.h

@@ -40,15 +40,11 @@
 #define S4C_ANIMATE_MINOR_VERSION 4
 #define S4C_ANIMATE_PATCH_VERSION 8
 
-#define S4C_MAJOR S4C_ANIMATE_MAJOR_VERSION
-#define S4C_MINOR S4C_ANIMATE_MINOR_VERSION
-#define S4C_PATCH S4C_ANIMATE_PATCH_VERSION
-
 /**
  * Defines current API version number from S4C_{MAJOR,MINOR,PATCH}.
  */
 static const int S4C_ANIMATE_API_VERSION_INT =
-    (S4C_MAJOR * 1000000 + S4C_MINOR * 10000 + S4C_PATCH * 100);
+    (S4C_ANIMATE_MAJOR_VERSION * 1000000 + S4C_ANIMATE_MINOR_VERSION * 10000 + S4C_ANIMATE_PATCH_VERSION * 100);
 /**< Represents current version with numeric format.*/
 
 /**