fix slim wrappers dependencies (finally)

dgpy/dgpy.cmake

@@ -27,6 +27,8 @@ endif(SWIG_FOUND AND PYTHONLIBS_FOUND)
 #see CMake bug 4147 (modified to remove dgConfig.h)
 MACRO(SWIG_GET_WRAPPER_DEPENDENCIES swigFile genWrapper language DEST_VARIABLE)
   GET_FILENAME_COMPONENT(swig_getdeps_basename ${swigFile} NAME_WE)
+  GET_FILENAME_COMPONENT(swig_getdeps_fullpath ${swigFile} ABSOLUTE)
+  GET_FILENAME_COMPONENT(swig_getdeps_genWrapper_fullpath ${genWrapper} ABSOLUTE)
   GET_FILENAME_COMPONENT(swig_getdeps_outdir ${genWrapper} PATH)
   GET_SOURCE_FILE_PROPERTY(swig_getdeps_extra_flags "${swigFile}" SWIG_FLAGS)
   IF("${swig_getdeps_extra_flags}" STREQUAL "NOTFOUND")
@@ -47,8 +49,8 @@ MACRO(SWIG_GET_WRAPPER_DEPENDENCIES swigFile genWrapper language DEST_VARIABLE)
     COMMAND ${SWIG_EXECUTABLE}
     -MM -MF ${swig_getdeps_depsfile} ${swig_getdeps_extra_flags}
     ${CMAKE_SWIG_FLAGS} -${language}
-    -o ${genWrapper} ${swig_getdeps_include_dirs} ${swigFile}
-    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+    -o ${swig_getdeps_genWrapper_fullpath} ${swig_getdeps_include_dirs} ${swig_getdeps_fullpath}
+    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/dgpy
     RESULT_VARIABLE swig_getdeps_result
     ERROR_VARIABLE swig_getdeps_error
     OUTPUT_STRIP_TRAILING_WHITESPACE)