bug#39241: make check fail in guile 3.0

HI All:

My 'make check' fails after building guile 3.0.0 on Ubuntu 18.04.3 LTS.

I built the system with GCC 7.4.0 with dependencies as:

Boehm gc 8.0.4
GMP 6.1.2
libffi 3.3
libtool 2.4.6
libunistring 0.9.10
pkg-config 0.29.2

These dependencies were built from scratch and installed to /usr/local. Any
other dependencies were installed by apt, including GCC.

Please find attached the gzipped make check log.

Cheers,
Al