Needing to pass PYTHON=python3 into hypervisor builds is irritating and unnecessary. Locate a suitable interpreter automatically, defaulting to Py3 if it is available.
Reported-by: Steven Haigh <net...@crc.id.au> Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com> --- CC: George Dunlap <george.dun...@eu.citrix.com> CC: Ian Jackson <ian.jack...@citrix.com> CC: Jan Beulich <jbeul...@suse.com> CC: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> CC: Stefano Stabellini <sstabell...@kernel.org> CC: Wei Liu <w...@xen.org> CC: Julien Grall <jul...@xen.org> CC: Steven Haigh <net...@crc.id.au> CC: Juergen Gross <jgr...@suse.com> v2: * Cope with `which` not being present in the system. * Only evaulate the shell command one, rather than once per $(PTHON) usage For 4.13. This is a very-nice-to-have WRT our Py3-clean intention. --- xen/Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/xen/Makefile b/xen/Makefile index 13ae1b6011..4f02aca3ac 100644 --- a/xen/Makefile +++ b/xen/Makefile @@ -13,6 +13,11 @@ export XEN_BUILD_TIME ?= $(shell LC_ALL=C date +%T) export XEN_BUILD_HOST ?= $(shell hostname) export XEN_CONFIG_EXPERT ?= n +# Best effort attempt to find a python interpreter, defaulting to Python 3 if +# available. Fall back to just `python` if `which` is nowhere to be found. +PYTHON_INTERPRETER := $(word 1,$(shell which python3 python python2 2>/dev/null) python) +export PYTHON ?= $(PYTHON_INTERPRETER) + export BASEDIR := $(CURDIR) export XEN_ROOT := $(BASEDIR)/.. -- 2.11.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
