2 # Copyright (C) 2011-2013 Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 2, or (at your option)
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # Check parallel-tests features:
18 # - If $(TEST_SUITE_LOG) is in $(TEST_LOGS), we get a diagnosed
19 # error, not a make hang or a system freeze.
23 # We don't want localized error messages from make, since we'll have
24 # to grep them. See automake bug#11452.
25 LANG=C LANGUAGE=C LC_ALL=C
26 export LANG LANGUAGE LC_ALL
28 # The tricky part of this test is to avoid that make hangs or even
29 # freezes the system in case infinite recursion (which is the bug we
30 # are testing against) is encountered. The following hacky makefile
31 # should minimize the probability of that happening.
32 cat > Makefile.am << 'END'
33 TEST_LOG_COMPILER = true
36 errmsg = ::OOPS:: Recursion too deep
40 is_too_deep := $(shell test $(MAKELEVEL) -lt 10 && echo no)
42 ## Indenteation here required to avoid confusing Automake.
43 ifeq ($(is_too_deep),no)
45 $(error $(errmsg), $(MAKELEVEL) levels)
50 # We use mkdir to detect the level of recursion, since it is easy
51 # to use and assured to be portably atomical. Also use an higher
52 # number than with GNU make above, since the level used here can
53 # be incremented by tow or more per recursion.
54 recursion-not-too-deep:
56 for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 \
57 18 19 20 21 22 23 24 25 26 27 28 29; \
59 echo " mkdir rec-$$i.d"; \
60 if mkdir rec-$$i.d; then \
64 test $$ok = yes || { echo '$(errmsg)' >&2; exit 1; }
65 .PHONY: recursion-not-too-deep
69 targets = all check recheck $(TESTS) $(TEST_LOGS) $(TEST_SUITE_LOG)
70 $(targets): recursion-not-too-deep
73 .BEGIN: recursion-not-too-deep
84 cat >> configure.ac << END
85 AM_CONDITIONAL([IS_GNU_MAKE], [$cond])
89 # Another helpful idiom to avoid hanging on capable systems. The subshell
90 # is needed since 'ulimit' might be a special shell builtin.
91 if (ulimit -t 8); then ulimit -t 8; fi
95 $AUTOMAKE -a -Wno-portability
102 run_make -M -e IGNORE -- "$@" check
103 $FGREP '::OOPS::' output && exit 1 # Possible infinite recursion.
104 # Check that at least we don't create a botched global log file.
107 grep "[Cc]ircular.*dependency" output | $FGREP "$log"
108 test $am_make_rc -gt 0
110 # Look for possible error messages about circular dependencies from
111 # either make or our own recipes. At least one such a message must
112 # be present. OTOH, some make implementations (e.g., NetBSD's), while
113 # smartly detecting the circular dependency early and diagnosing it,
114 # still exit with a successful exit status (yikes!). So don't check
115 # the exit status of non-GNU make, to avoid spurious failures.
119 'circular.* depend' \
120 'depend.* circular' \
122 'infinite (loop|recursion)' \
123 'depend.* on itself' \
125 $EGREP -i "$err_rx" output | $FGREP "$log" || continue
129 test $err_seen = yes || exit 1
134 do_check test-suite.log TESTS=test-suite.test
142 do_check foobar.log TEST_LOGS='0.log 1.log foobar.log 2.log 3.log' \
143 TEST_SUITE_LOG=foobar.log