Fix this to better deal with non-existing file names entered in the SOURCES

file as it otherwise seriously screws up the build system and creates very
odd errors that are hard to track down.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13414 a1c6a512-1295-4272-9138-f99709370657

tools/makesrc.inc

@@ -8,7 +8,11 @@
 #
 # The weird grep -v thing in here is due to Apple's stupidities and is needed
 # to make this do right when used on Mac OS X.
+#
+# The usage of ls is only to make sure that we only output existing file names
+# to not confuse make and to produce a fairly decent error message to the
+# terminal.
 
 SRC := $(shell cat SOURCES | $(CC) -DMEMORYSIZE=$(MEMORYSIZE) $(INCLUDES) \
 $(TARGET) $(DEFINES) $(EXTRA_DEFINES) -E -P -include "config.h" - | \
-grep -v "^\#")
+grep -v "^\#" | xargs ls)