Merge topic 'Qt4Macros-generated-resources'

9ce67d3 Qt4Macros: Added support for generated resource files

Modules/Qt4Macros.cmake

@@ -182,23 +182,31 @@ MACRO (QT4_ADD_RESOURCES outfiles )
     GET_FILENAME_COMPONENT(infile ${it} ABSOLUTE)
     GET_FILENAME_COMPONENT(rc_path ${infile} PATH)
     SET(outfile ${CMAKE_CURRENT_BINARY_DIR}/qrc_${outfilename}.cxx)
-    #  parse file for dependencies 
-    #  all files are absolute paths or relative to the location of the qrc file
-    FILE(READ "${infile}" _RC_FILE_CONTENTS)
-    STRING(REGEX MATCHALL "<file[^<]+" _RC_FILES "${_RC_FILE_CONTENTS}")
+
     SET(_RC_DEPENDS)
-    FOREACH(_RC_FILE ${_RC_FILES})
-      STRING(REGEX REPLACE "^<file[^>]*>" "" _RC_FILE "${_RC_FILE}")
-      IF(NOT IS_ABSOLUTE "${_RC_FILE}")
-        SET(_RC_FILE "${rc_path}/${_RC_FILE}")
-      ENDIF(NOT IS_ABSOLUTE "${_RC_FILE}")
-      SET(_RC_DEPENDS ${_RC_DEPENDS} "${_RC_FILE}")
-    ENDFOREACH(_RC_FILE)
-    # Since this cmake macro is doing the dependency scanning for these files,
-    # let's make a configured file and add it as a dependency so cmake is run
-    # again when dependencies need to be recomputed.
-    QT4_MAKE_OUTPUT_FILE("${infile}" "" "qrc.depends" out_depends)
-    CONFIGURE_FILE("${infile}" "${out_depends}" COPY_ONLY)
+    IF(EXISTS "${infile}")
+      #  parse file for dependencies
+      #  all files are absolute paths or relative to the location of the qrc file
+      FILE(READ "${infile}" _RC_FILE_CONTENTS)
+      STRING(REGEX MATCHALL "<file[^<]+" _RC_FILES "${_RC_FILE_CONTENTS}")
+      FOREACH(_RC_FILE ${_RC_FILES})
+        STRING(REGEX REPLACE "^<file[^>]*>" "" _RC_FILE "${_RC_FILE}")
+        IF(NOT IS_ABSOLUTE "${_RC_FILE}")
+          SET(_RC_FILE "${rc_path}/${_RC_FILE}")
+        ENDIF(NOT IS_ABSOLUTE "${_RC_FILE}")
+        SET(_RC_DEPENDS ${_RC_DEPENDS} "${_RC_FILE}")
+      ENDFOREACH(_RC_FILE)
+      # Since this cmake macro is doing the dependency scanning for these files,
+      # let's make a configured file and add it as a dependency so cmake is run
+      # again when dependencies need to be recomputed.
+      QT4_MAKE_OUTPUT_FILE("${infile}" "" "qrc.depends" out_depends)
+      CONFIGURE_FILE("${infile}" "${out_depends}" COPY_ONLY)
+    ELSE(EXISTS "${infile}")
+      # The .qrc file does not exist (yet). Let's add a dependency and hope
+      # that it will be generated later
+      SET(out_depends)
+    ENDIF(EXISTS "${infile}")
+
     ADD_CUSTOM_COMMAND(OUTPUT ${outfile}
       COMMAND ${QT_RCC_EXECUTABLE}
       ARGS ${rcc_options} -name ${outfilename} -o ${outfile} ${infile}