[PATCH iproute2-next 0/2] configure: convert global env to command-line options

This path set converts the global environment to command-line options
to make it easier for users to learn or remember the config options.

I only convert environment INCLUDE, LIBBPF_DIR, LIBBPF_FORCE at first.
The IPTC and IPTL are not converted as I don't know what they stand for.

Hangbin Liu (2):
  configure: add options ability
  configure: convert LIBBPF environment variables to command-line
    options

 configure | 49 +++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 43 insertions(+), 6 deletions(-)

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2.26.3