FIX: Relative Include Files May Not be a Dependency

  #include "\include\test.h"
				

RESOLUTION

Adding the project root directory to one of the Include file paths (under Options.Directories or Options.Project.Compiler.Preprocessor) AND changing the #include statement to remove the leading backslash (such as in "include\test.h") will resolve this problem. Additionally, specifying the entire path to the include file will alleviate this problem.

/* Compile options needed:   none
*/ 

#include "\include\test1.h"
#include "test.h"

void main() {}