Now, in Makefile.am Rules are a bit different than regular makefile? On Fri, Jun 15, 2018 at 1:11 AM, Bob Friesenhahn < bfriesen@xxxxxxxxxxxxxxxxxxx> wrote: > On Fri, 15 Jun 2018, Anmol Mishra wrote: > > https://pastebin.com/gDiMCEpC >> >> https://github.com/Shopify/pyoozie/blob/master/Makefile >> >> What actually is my_cmd.python.2 and my_cmd.python.3 really do. >> In these, What actually is happening in these lines? >> >> 1. python_version_full := $(wordlist 2,4,$(subst ., ,$(shell python >> --version 2>&1))) >> 2. python_version_major := $(word 1,${python_version_full} >> > > This is GNU make specific syntax (not portable) and so you should consult > the GNU make manual. > > As a quick check you can add something this at the bottom of the Makefile > to see what these variables end up being defined to: > > test_vars: > echo $(python_version_full) > echo $(python_version_major) > > and then do > > make test_vars > > to see what gets printed. > > Bob > -- > Bob Friesenhahn > bfriesen@xxxxxxxxxxxxxxxxxxx, http://www.simplesystems.org/users/bfriesen/ > GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ > -- [image: Developer in progress] Anmol Mishra Student | Developer in progress M: +91 9990752180 <+91+9990752180> E: anmolmishra.jiit@xxxxxxxxx [image: facebook] <https://www.facebook.com/1453830764744514> [image: twitter] <https://twitter.com/_octamois> [image: linkedin] <https://www.linkedin.com/in/anmol-mishra-720219136/> [image: github] <https://github.com/octamois> [image: snapchat-ghost] <https://www.snapchat.com/add/octamois> _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf
