Fix the oddity in compiling test applications in no-change rebuild scenario.

This is a side effect of using "cp -r" command for copying the header files to build directory.
Since the "cp -r" command will not preserve the time stamp of source file
while copying,make will treat as new header file and build the test apps again.

This can be fixed by adding "-p" option in cp command or using "rsync" to copy the file.
"headers_install" target demands for a sync operation rather than copy operation,
so rsync may be the right candidate here and it will make sure build/include/*.h clean
for back to back different platform build.

Reported-by: steve.mcintyre@linaro.org
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Reviewed-by: Anders Roxell <anders.roxell@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/Makefile.inc b/Makefile.inc
index fab7989a0..ff16043c4 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -17,6 +17,7 @@ MKDIR  := mkdir -p
 RMDIR  := rm -rf
 RM     := rm -f
 COPY   := cp -r
+SYNC   := rsync -a --delete
 
 ifneq ($(VERBOSE),yes)
 Q          = @