[cmake-developers] [CMake 0013938]: Incomplete header dependencies generated

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
====================================================================== 
http://www.cmake.org/Bug/view.php?id=13938 
====================================================================== 
Reported By:                tasptz
Assigned To:                
====================================================================== 
Project:                    CMake
Issue ID:                   13938
Category:                   CMake
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
====================================================================== 
Date Submitted:             2013-02-20 11:03 EST
Last Modified:              2013-02-20 11:03 EST
====================================================================== 
Summary:                    Incomplete header dependencies generated
Description: 
I constructed a minimal example which reproduces the issue.
The include tree is:

main.cpp -> a/a.h -> x.h (a.h includes x.h without path and x.h is in a/)
        \-> c/c.h -> x.h (c.h includes x.h without path and x.h is in c/)

Now cmake detects the dependency only for one of the two x.h!

Note:
I even added all files to the executable
add_executable(main main.cpp a/a.h a/x.h c/c.h c/x.h)

Steps to Reproduce: 
1. Compile the project.
 * project build must be successful!
2. Change a/x.h and check if the change is picked up by the build system
3. Change c/x.h and check if the change is picked up by the build system

Either step 2 or step 3 should fail!

Additional Information: 
I ran the following command in the build directory:

$ rgrep "x.h" *
CMakeFiles/main.dir/depend.make:CMakeFiles/main.dir/main.cpp.o:
/home/poenitz/Desktop/bugreport/src/a/x.h
CMakeFiles/main.dir/CXX.includecache:x.h
CMakeFiles/main.dir/CXX.includecache:/removed/bugreport/src/a/x.h
CMakeFiles/main.dir/CXX.includecache:/removed/bugreport/src/a/x.h
CMakeFiles/main.dir/CXX.includecache:x.h
CMakeFiles/main.dir/CXX.includecache:/removed/bugreport/src/c/x.h
CMakeFiles/main.dir/depend.internal: /removed/bugreport/src/a/x.h
====================================================================== 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2013-02-20 11:03 tasptz         New Issue                                    
2013-02-20 11:03 tasptz         File Added: bugreport.zip                    
======================================================================