On AIX 7.1, I see "make check" producing 47 test failures:

FAIL: t/gettext-external-pr338
FAIL: t/make-dryrun
FAIL: t/make-dryrun.tap 4 - run
FAIL: t/make-dryrun.tap 5 - run (-s)
FAIL: t/make-dryrun.tap 6 - run (-s -r)
FAIL: t/make-dryrun.tap 7 - run
FAIL: t/make-dryrun.tap 8 - run (-s)
FAIL: t/make-dryrun.tap 9 - run (-s -r)
FAIL: t/make-dryrun.tap 10 - run
FAIL: t/make-dryrun.tap 11 - run (-s)
FAIL: t/make-dryrun.tap 12 - run (-s -r)
FAIL: t/make-dryrun.tap 13 - run
FAIL: t/make-dryrun.tap 14 - run (-s)
FAIL: t/make-dryrun.tap 15 - run (-s -r)
FAIL: t/make-dryrun.tap 16 - run
FAIL: t/make-dryrun.tap 17 - run (-s)
FAIL: t/make-dryrun.tap 18 - run (-s -r)
FAIL: t/make-dryrun.tap 37 - run [metachars]
FAIL: t/make-dryrun.tap 38 - run [metachars] (-s)
FAIL: t/make-dryrun.tap 39 - run [metachars] (-s -r)
FAIL: t/make-dryrun.tap 52 - run [metachars]
FAIL: t/make-dryrun.tap 53 - run [metachars] (-s)
FAIL: t/make-dryrun.tap 54 - run [metachars] (-s -r)
FAIL: t/make-keepgoing
FAIL: t/make-keepgoing.tap 4 - k-n
FAIL: t/make-keepgoing.tap 5 - k-n (-s)
FAIL: t/make-keepgoing.tap 6 - k-n (-s -r)
FAIL: t/make-keepgoing.tap 7 - k-n
FAIL: t/make-keepgoing.tap 8 - k-n (-s)
FAIL: t/make-keepgoing.tap 9 - k-n (-s -r)
FAIL: t/make-keepgoing.tap 10 - k-n
FAIL: t/make-keepgoing.tap 11 - k-n (-s)
FAIL: t/make-keepgoing.tap 12 - k-n (-s -r)
FAIL: t/make-keepgoing.tap 13 - k-n
FAIL: t/make-keepgoing.tap 14 - k-n (-s)
FAIL: t/make-keepgoing.tap 15 - k-n (-s -r)
FAIL: t/make-keepgoing.tap 16 - k-n
FAIL: t/make-keepgoing.tap 17 - k-n (-s)
FAIL: t/make-keepgoing.tap 18 - k-n (-s -r)
FAIL: t/make-keepgoing.tap 37 - k-n [metachars]
FAIL: t/make-keepgoing.tap 38 - k-n [metachars] (-s)
FAIL: t/make-keepgoing.tap 39 - k-n [metachars] (-s -r)
FAIL: t/make-keepgoing.tap 52 - k-n [metachars]
FAIL: t/make-keepgoing.tap 53 - k-n [metachars] (-s)
FAIL: t/make-keepgoing.tap 54 - k-n [metachars] (-s -r)
FAIL: t/testsuite-summary-header
FAIL: t/py-compile-basedir
FAIL: t/remake-gnulib-remove-header
FAIL: t/yacc-mix-c-cxx

You can ignore the gettext-external-pr338 failure, because I have an unreleased
version of gettext installed on this machine, with an dysfunctional 'autopoint'
program.