See also: https://bugs.gentoo.org/show_bug.cgi?id=532346

On a Gentoo unstable amd64 system, ./configure; make; make check of pango-1.36.8 yields:

...
make[2]: Leaving directory '/home/eroen/pangocheck/pango-1.36.8/tests'
make  check-TESTS
make[2]: Entering directory '/home/eroen/pangocheck/pango-1.36.8/tests'
make[3]: Entering directory '/home/eroen/pangocheck/pango-1.36.8/tests'
PASS: testboundaries
PASS: testboundaries_ucd
PASS: testcolor
PASS: testscript
PASS: markup-parse
../test-driver: line 107: 562034 Aborted                 "$@" > $log_file 2>&1
FAIL: test-layout
PASS: test-font
PASS: testiter
PASS: test-pangocairo-threads
PASS: test-ot-tags
PASS: cxx-test
make[4]: Entering directory '/home/eroen/pangocheck/pango-1.36.8/tests'
make[4]: Nothing to be done for 'all'.
make[4]: Leaving directory '/home/eroen/pangocheck/pango-1.36.8/tests'
============================================================================
Testsuite summary for pango 1.36.8
============================================================================
# TOTAL: 11
# PASS:  10
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0
============================================================================
See tests/test-suite.log
Please report to http://bugzilla.gnome.org/enter_bug.cgi?product=pango
============================================================================
Makefile:1041: recipe for target 'test-suite.log' failed
make[3]: *** [test-suite.log] Error 1
make[3]: Leaving directory '/home/eroen/pangocheck/pango-1.36.8/tests'
Makefile:1147: recipe for target 'check-TESTS' failed
make[2]: *** [check-TESTS] Error 2
make[2]: Leaving directory '/home/eroen/pangocheck/pango-1.36.8/tests'
Makefile:1290: recipe for target 'check-am' failed
make[1]: *** [check-am] Error 2
make[1]: Leaving directory '/home/eroen/pangocheck/pango-1.36.8/tests'
Makefile:585: recipe for target 'check-recursive' failed
make: *** [check-recursive] Error 1



tests/test-suite.log:

========================================
   pango 1.36.8: tests/test-suite.log
========================================

# TOTAL: 11
# PASS:  10
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0

.. contents:: :depth: 2

FAIL: test-layout
=================

/layout/valid-1.markup: Contents don't match expected contents:
--- /home/eroen/pangocheck/pango-1.36.8/tests/layouts/valid-1.expected	2014-09-19 17:42:47.000000000 +0200
+++ /tmp/.OTEGQX	2014-12-12 14:50:21.644799413 +0100
@@ -24,10 +24,10 @@
 ---
 
 i=1, index=0, chars=22, level=0, gravity=south, flags=0, font=OMITTED, script=latin, language=c, 'This is a test of the '
-i=2, index=22, chars=11, level=0, gravity=south, flags=0, font=OMITTED, script=latin, language=c, 'automatic e'
+i=2, index=22, chars=6, level=0, gravity=south, flags=0, font=OMITTED, script=latin, language=c, 'automa'
   [22 41] foreground #00000000ffff
   [22 41] underline 1
-i=3, index=33, chars=15, level=0, gravity=south, flags=2, font=OMITTED, script=common, language=c, 'mergency brake!'
+i=3, index=28, chars=20, level=0, gravity=south, flags=2, font=OMITTED, script=common, language=c, 'tic emergency brake!'
   [0 2147483647] fallback 0
   [22 41] foreground #00000000ffff
   [22 41] underline 1
FAIL