| Message ID | 20240819160309.2218114-7-vegard.nossum@oracle.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | output a valid shell script when running 'make -n' | expand |
On Mon, Aug 19, 2024 at 06:03:03PM +0200 Vegard Nossum wrote: > Add a convenience variable that allows us to use 'ifdef dry_run...endif' > in Makefiles or '[ -v dry_run ]' in shell scripts to test whether make > was invoked with '-n'. > > See [1] for an explanation of this particular construction. > > [1]: https://www.gnu.org/software/make/manual/make.html#Testing-Flags > > Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> > --- > Makefile | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Makefile b/Makefile > index 58f3843ccfac6..953951157ec92 100644 > --- a/Makefile > +++ b/Makefile > @@ -22,6 +22,11 @@ $(if $(filter __%, $(MAKECMDGOALS)), \ > PHONY := __all > __all: > > +# Was make invoked with --dry-run/-n? Record this in a convenience variable. > +ifeq (n,$(findstring n,$(firstword -$(MAKEFLAGS)))) > +export dry_run := 1 > +endif As in patch 1: As we still also support make v3.80 to v4.0, please use $(short-opts) defined around line 27. > + > # We are using a recursive build, so we need to do a little thinking > # to get the ordering right. > # > -- > 2.34.1 > I will have a look at the remaining patches within a few days. Thanks and kind regards, Nicolas
diff --git a/Makefile b/Makefile index 58f3843ccfac6..953951157ec92 100644 --- a/Makefile +++ b/Makefile @@ -22,6 +22,11 @@ $(if $(filter __%, $(MAKECMDGOALS)), \ PHONY := __all __all: +# Was make invoked with --dry-run/-n? Record this in a convenience variable. +ifeq (n,$(findstring n,$(firstword -$(MAKEFLAGS)))) +export dry_run := 1 +endif + # We are using a recursive build, so we need to do a little thinking # to get the ordering right. #
Add a convenience variable that allows us to use 'ifdef dry_run...endif' in Makefiles or '[ -v dry_run ]' in shell scripts to test whether make was invoked with '-n'. See [1] for an explanation of this particular construction. [1]: https://www.gnu.org/software/make/manual/make.html#Testing-Flags Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> --- Makefile | 5 +++++ 1 file changed, 5 insertions(+)