Well damn ... even with bash 5.0.7 total fail :
gmake[3]: 'tests/bison' is up to date.
gmake[3]: Nothing to be done for 'tests/atconfig'.
gmake[3]: 'tests/atlocal' is up to date.
gmake[3]: Leaving directory
'/usr/local/build/bison-3.4.1_SunOS5.10_sparc64vii+.001'
/usr/local/bin/gmake check-TESTS check-local
gmake[3]: Entering directory
'/usr/local/build/bison-3.4.1_SunOS5.10_sparc64vii+.001'
gmake[4]: Entering directory
'/usr/local/build/bison-3.4.1_SunOS5.10_sparc64vii+.001'
FAIL: examples/c/mfcalc/mfcalc.test
FAIL: examples/c/rpcalc/rpcalc.test
FAIL: examples/c/calc/calc.test
FAIL: examples/c++/simple.test
FAIL: examples/c++/variant.test
FAIL: examples/c++/variant-11.test
FAIL: examples/java/Calc.test
============================================================================
Testsuite summary for GNU Bison 3.4.1
============================================================================
# TOTAL: 7
# PASS: 0
# SKIP: 0
# XFAIL: 0
# FAIL: 7
# XPASS: 0
# ERROR: 0
============================================================================
See ./test-suite.log
Please report to bug-bison@gnu.org
============================================================================
--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
GreyBeard and suspenders optional