System: OpenSuSE-Leap 42.2 (same Problem on OpenSuSE-12.2)
Kdevelop: 4.7.2

Problem: "Seach/replace files" doesn't show any hits if parent directory is named "build".

How to reproduce:
1. Take any package, here as an example, "ppp-2.4.7"
2. Copy it to any folder, where the path ends with "build" (here: "/temp/build/ppp-2.4.7")
3. "Open/Import project" -> "/temp/build/ppp-2.4.7" the package into kdevelop as custom project.
4. Now make a "search/replace files" on "/temp/build/ppp-2.4.7" for "include".

-> no matches were found.
The problem occurs with any combinations of access rights.

Now the counterexample:
1. Take the same package, here "ppp-2.4.7"
2. Copy it to any folder, where the path does NOT end with "build" (here: "/temp/ppp-2.4.7")
3. "Open/Import project" -> "/temp/ppp-2.4.7" the package into kdevelop as custom project.
4. Now make a "search/replace files" on "/temp/ppp-2.4.7" for "include".

-> 1232 matches in 125 files.

This is annoying, because unfortunately my most used directory to search for contexts is the standard build directory of "buildroot" which unfortunately is "build". Kfind is no good alternative (ist works), because then I have to give up all the "goodies" of kdevelop.

Poldi