Hi, Am Mi., 23. Nov. 2022 um 02:09 Uhr schrieb <changqing...@eng.windriver.com>: > > From: Changqing Li <changqing...@windriver.com> > > 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. >
I see the issue when building linuxptp with make 4.4 via buildroot. @Richard: Any plans to apply this patch or are there any concerns? -- Heiko > [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 <changqing...@windriver.com> > --- > 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 > > > > _______________________________________________ > Linuxptp-devel mailing list > Linuxptp-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/linuxptp-devel _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
