Problem compiling tests for guile 1.7.1

[Pierre]

[...]
Making check in test-suite
make[1]: Entering directory `/tmp/guile-1.7.1/test-suite'
Making check in standalone
make[2]: Entering directory `/tmp/guile-1.7.1/test-suite/standalone'
make  check-am
make[3]: Entering directory `/tmp/guile-1.7.1/test-suite/standalone'
cd . && chmod u+x test-system-cmds test-asmobs
make  test-num2integral test-round test-gh test-unwind test-conversion 
test-system-cmds test-asmobs
make[4]: Entering directory `/tmp/guile-1.7.1/test-suite/standalone'
make[4]: `test-num2integral' is up to date.
make[4]: `test-round' is up to date.
make[4]: `test-gh' is up to date.
make[4]: `test-unwind' is up to date.
make[4]: `test-conversion' is up to date.
make[4]: Nothing to be done for `test-system-cmds'.
make[4]: Nothing to be done for `test-asmobs'.
make[4]: Leaving directory `/tmp/guile-1.7.1/test-suite/standalone'
make  check-TESTS
make[4]: Entering directory `/tmp/guile-1.7.1/test-suite/standalone'
PASS: test-system-cmds
PASS: test-num2integral
PASS: test-round
PASS: test-gh
PASS: test-asmobs
PASS: test-unwind
fail: scm_from_double (nan) == +nan.0
FAIL: test-conversion
===================
1 of 7 tests failed
===================
make[4]: *** [check-TESTS] Error 1
make[4]: Leaving directory `/tmp/guile-1.7.1/test-suite/standalone'
make[3]: *** [check-am] Error 2
make[3]: Leaving directory `/tmp/guile-1.7.1/test-suite/standalone'
make[2]: *** [check] Error 2
make[2]: Leaving directory `/tmp/guile-1.7.1/test-suite/standalone'
make[1]: *** [check-recursive] Error 1
make[1]: Leaving directory `/tmp/guile-1.7.1/test-suite'
make: *** [check-recursive] Error 1