There is a race condition when running $ make install.libs install.includes As both targets install identical files. The remedy is to either prevent parallel make of install.libs and install.includes, or ensure only one target installs the files. The second approch will only work if we always install both libs and includes (which we do). Upstream-Status: Inappropriate [configuration] Index: git/mk-hdr.awk =================================================================== --- a/mk-hdr.awk +++ b/mk-hdr.awk @@ -73,11 +73,13 @@ BEGIN { END { if ( count > 0 ) { + print" # patched here: Removed install.libs due the race " print "${INCLUDEDIR} :" print " mkdir -p $@" print "" + print "install.libs :: ;" + print "" print "install \\" - print "install.libs \\" print "install.includes :: ${AUTO_SRC} ${INCLUDEDIR} \\" for (i = 0; i < count - 1; ++i) {