added distclean target to cmake

for better cleanup when making releases
also added cmake build files in .gitignore

.gitignore

@@ -19,7 +19,7 @@ tags
 *.so
 *.la
 *.lo
-*.cmake
+cmake_install.cmake
 CMakeFiles
 CMakeCache.txt
 *~

CMakeLists.txt

@@ -20,4 +20,7 @@ set (LIBDIR lib/frei0r-1)
 set (FREI0R_DEF ${CMAKE_SOURCE_DIR}/msvc/frei0r_1_0.def)
 set (FREI0R_1_1_DEF ${CMAKE_SOURCE_DIR}/msvc/frei0r_1_1.def)
 
+# --- custom targets: ---
+INCLUDE( cmake/modules/TargetDistclean.cmake OPTIONAL)
+
 add_subdirectory (src)

cmake/modules/TargetDistclean.cmake

@@ -0,0 +1,28 @@
+# add custom target distclean
+# cleans and removes cmake generated files etc.
+# Jan Woetzel 04/2003
+#
+
+IF (UNIX)
+  ADD_CUSTOM_TARGET (distclean @echo cleaning for source distribution)
+  SET(DISTCLEANED
+   cmake.depends
+   cmake.check_depends
+   CMakeCache.txt
+   cmake.check_cache
+   *.cmake
+   Makefile
+   core core.*
+   gmon.out
+   *~
+  )
+
+  ADD_CUSTOM_COMMAND(
+    DEPENDS clean
+    COMMENT "distribution clean"
+    COMMAND rm
+    ARGS    -Rf CMakeTmp ${DISTCLEANED}
+    TARGET  distclean
+  )
+ENDIF(UNIX)
+