tree b39e1be6d01a1731b469e3e5c430aa83d1a49244
parent 8dffadb8da92e7b0af97362936a117ebfbd9323d
author Pau Espin Pedrol <pespin@sysmocom.de> 1520429966 +0100
committer Pau Espin Pedrol <pespin@sysmocom.de> 1520448402 +0100

Makefile.am: Avoid using subdir if arch is not required

There's no need in going a level deeper if we already know nothing's
going to be done. This way we also get cleaner make outputs.

Reference: https://www.gnu.org/software/automake/manual/html_node/Conditional-Subdirectories.html#Conditional-Subdirectories

Related: OS#3029

Change-Id: I3ff57ab14edc575904e8137929a0ef02c95e03af