openssl.inc: avoid random ptest failures

"make alltests" is sensitive to the timestamps of the installed
files. Depending on the order in which cp copies files, .o and/or
executables may end up with time stamps older than the source files.
Running tests then triggers recompilation attempts, which typically
will fail because dev tools and files are not installed.

"cp -a" is not enough because the files also have to be newer than
the installed header files. Setting the file time stamps to
the current time explicitly after copying solves the problem because
do_install_ptest_base is guaranteed to run after do_install.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/meta/recipes-connectivity/openssl/openssl.inc b/meta/recipes-connectivity/openssl/openssl.inc
index cb7ec0aac2..f3a2c5abd7 100644
--- a/meta/recipes-connectivity/openssl/openssl.inc
+++ b/meta/recipes-connectivity/openssl/openssl.inc
@@ -216,6 +216,19 @@ do_install_ptest () {
 	mkdir -p ${D}${PTEST_PATH}/util
 	install util/opensslwrap.sh    ${D}${PTEST_PATH}/util
 	install util/shlib_wrap.sh     ${D}${PTEST_PATH}/util
+	# Time stamps are relevant for "make alltests", otherwise
+	# make may try to recompile binaries. Not only must the
+	# binary files be newer than the sources, they also must
+	# be more recent than the header files in /usr/include.
+	#
+	# Using "cp -a" is not sufficient, because do_install
+	# does not preserve the original time stamps.
+	#
+	# So instead of using the original file stamps, we set
+	# the current time for all files. Binaries will get
+	# modified again later when stripping them, but that's okay.
+	touch ${D}${PTEST_PATH}
+	find ${D}${PTEST_PATH} -type f -print0 | xargs --verbose -0 touch -r ${D}${PTEST_PATH}
 }
 
 do_install_append_class-native() {