Merged in masayuki2009/nuttx.nuttx/lc823450_parallel_build (pull requ…

…est #682)

configs/lc823450-xgevk: Fix parallel build on lc823450-xgevk

This patch fixes an archive file (*.a) corruption by locking $(TOPDIR).
Please note that locking the current directory is insufficient because
some archive files such as libapps.a are specified with absolute path.

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

Approved-by: GregoryN <gnutt@nuttx.org>

configs/lc823450-xgevk/scripts/Make.defs

@@ -64,7 +64,7 @@ CXX = $(CROSSDEV)g++
 CPP = $(CROSSDEV)gcc -E
 LD = $(CROSSDEV)ld
 STRIP = $(CROSSDEV)strip --strip-unneeded
-AR = $(CROSSDEV)ar rcs
+AR = flock --verbose $(TOPDIR) $(CROSSDEV)ar rcs
 NM = $(CROSSDEV)nm
 OBJCOPY = $(CROSSDEV)objcopy
 OBJDUMP = $(CROSSDEV)objdump