Some refinements in source tree builder

Author: cmaglie

.gitignore

@@ -2,6 +2,4 @@ compile.sh
 dfu-util-*/*
 dfu-discovery
 *.o
-dfu_util.c
-dfuse_mem.c
-quirks.c
+dfu-util_*.c

compile.sh

@@ -7,7 +7,9 @@ else
 	echo "Downloading $DFU_UTIL..."
 	curl https://dfu-util.sourceforge.net/releases/$DFU_UTIL.tar.gz -s | tar xz
 
-	cp dfu-util-0.11/src/dfuse_mem.c .
-	cp dfu-util-0.11/src/dfu_util.c .
-	cp dfu-util-0.11/src/quirks.c .
+	cp dfu-util-0.11/src/dfuse_mem.c dfu-util_dfuse_mem.c
+	cp dfu-util-0.11/src/dfu_util.c dfu-util_dfu_util.c
+	cp dfu-util-0.11/src/quirks.c dfu-util_quirks.c
+	# for some reason quirks.c has the exec flag set
+	chmod -x dfu-util_quirks.c
 fi