diff --git a/package/linuxptp/0002-makefile-use-conditional-assignment-for-KBUILD_OUTPUT.patch b/package/linuxptp/0002-makefile-use-conditional-assignment-for-KBUILD_OUTPUT.patch new file mode 100644 index 0000000000..73cd34f744 --- /dev/null +++ b/package/linuxptp/0002-makefile-use-conditional-assignment-for-KBUILD_OUTPUT.patch @@ -0,0 +1,43 @@ +From: Changqing Li +Date: Wed, 23 Nov 2022 08:23:46 +0800 +Subject: [Linuxptp-devel] [PATCH] makefile: use conditional assignment for KBUILD_OUTPUT + +Refer [1],from make 4.4, all variables that are marked as export will +also be passed to the shell started by the shell function. use "=" will +make KBUILD_OUTPUT always empty for shell function, use "?=" to make +"export KBUILD_OUTPUT" in enrironment can work. + +[snip of 4.4 NEWS] +* WARNING: Backward-incompatibility! + Previously makefile variables marked as export were not exported to commands + started by the $(shell ...) function. Now, all exported variables are + exported to $(shell ...). +[snip] + +[1] https://git.savannah.gnu.org/cgit/make.git/tree/NEWS?h=4.4&id=ed493f6c9116cc217b99c2cfa6a95f15803235a2#n74 + +Signed-off-by: Changqing Li + +[Retrieved from mailing list. The patch was not yet accepted and applied: +https://www.mail-archive.com/linuxptp-devel@lists.sourceforge.net/msg06151.html] +Signed-off-by: Heiko Thiery + +--- + makefile | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/makefile b/makefile +index 9aed383..ba3fb38 100644 +--- a/makefile ++++ b/makefile +@@ -15,7 +15,7 @@ + # with this program; if not, write to the Free Software Foundation, Inc., + # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +-KBUILD_OUTPUT = ++KBUILD_OUTPUT ?= + + DEBUG = + CC = $(CROSS_COMPILE)gcc +-- +2.25.1