RULE_ARRAY() to define deps with a static array

gebs.h

@@ -400,6 +400,21 @@ void gebs_rebuild_self1_alloc(Gebs_Allocator *alloc, int argc, char ** argv,
     __ok; \
 })
 
+#define gebs_needs_rebuild_many_array(out, array) \
+({ \
+    bool __ok = false; \
+    if (sizeof((array))/sizeof((array)[0]) == 0) { \
+        __ok = true; \
+    } \
+    for (size_t __i = 0; __i < sizeof((array))/sizeof((array)[0]); __i++) { \
+        if (gebs_needs_rebuild((out), (array)[__i])) { \
+            __ok = true; \
+            break; \
+        } \
+    } \
+    __ok; \
+})
+
 #define gebs_make_compile_flags(...) \
     do { \
         if (gebs_needs_rebuild("compile_flags.txt", __FILE__)) { \
@@ -419,6 +434,7 @@ void gebs_rebuild_self1_alloc(Gebs_Allocator *alloc, int argc, char ** argv,
     } while(0)
 
 #define GEBS_RULE(target, ...) if (needs_rebuild_many(target, __VA_ARGS__))
+#define GEBS_RULE_ARRAY(target, array) if (gebs_needs_rebuild_many_array(target, (array)))
 
 // ----------------------------------------------------------------------------
 // Scratch arena
@@ -1004,6 +1020,7 @@ void gebs_rebuild_self1_alloc(Gebs_Allocator *alloc, int argc, char ** argv,
 #define rebuild_self                gebs_rebuild_self
 #define make_compile_flags          gebs_make_compile_flags
 #define RULE                        GEBS_RULE
+#define RULE_ARRAY                  GEBS_RULE_ARRAY
 
 #define scratch_arena               gebs_scratch_arena
 #define fmt                         gebs_fmt