Gm2 not a valid languge in latest 4.7.4?

[john o goyo]

I downloaded the latest gcc-4.7.4+gm2 tarball (20200219) because I built 
gcc-4.7.4+gm2-1.1.6 on my Solaris/Sparc box (though a problem running 
the testsuite).  Configure gave me the following unexpected error.  (The 
last two lines are pertinent.)

checking build system type... sparc-sun-solaris2.10
checking host system type... sparc-sun-solaris2.10
checking target system type... sparc-sun-solaris2.10
checking for a BSD-compatible install... /opt/sfw/bin/install -c
checking whether ln works... yes
checking whether ln -s works... yes
checking for a sed that does not truncate output... /opt/sfw/bin/sed
checking for gawk... gawk
checking for gcc... /home/build/gcc/4.7.4/bin/gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether /home/build/gcc/4.7.4/bin/gcc accepts -g... yes
checking for /home/build/gcc/4.7.4/bin/gcc option to accept ISO C89... 
none needed
checking whether we are using the GNU C++ compiler... yes
checking whether /home/build/gcc/4.7.4/bin/g++ accepts -g... yes
checking for gnatbind... no
checking for gnatmake... no
checking whether compiler driver understands Ada... no
checking how to compare bootstrapped objects... cmp $$f1 $$f2 16 16
checking for objdir... .libs
checking for the correct version of gmp.h... yes
checking for the correct version of mpfr.h... yes
checking for the correct version of mpc.h... yes
checking for the correct version of the gmp/mpfr/mpc libraries... yes
checking for PWL_handle_timeout in -lpwl... no
checking for version 0.11 (revision 0 or later) of PPL... no
configure: error:
The following requested languages could not be built: gm2
Supported languages are: c,c++,fortran,go,java,lto,objc,obj-c++

My configure options as follows:

GM2DATE=20200219
GCCVER=4.7.4

CC=/home/build/gcc/4.7.4/bin/gcc \
CXX=/home/build/gcc/4.7.4/bin/g++ \
CFLAGS="-lnsl -lsocket -lpthread -lrt -L/lib" \
LDFLAGS="-lnsl -lsocket -lpthread -lrt -L/lib" \
SHELL=/bin/bash \
CONFIG_SHELL=/bin/bash \
../../src/gcc-$GCCVER+gm2-$GM2DATE/gm2/gcc-versionno/configure \
--prefix=$HOME/gm2/$GCCVER/$GM2DATE \
--exec-prefix=$HOME/gm2/$GCCVER/$GM2DATE \
--without-gnu-ld --with-ld=/usr/sfw/bin/gld \
--with-gnu-as --with-as=/usr/sfw/bin/gas  \
--enable-languages=c,c++,gm2 --disable-bootstrap --enable-checking \
--enable-shared \
--disable-libquadmath \
--disable-libitm \
--with-mpc-include=/usr/local/include --with-mpc-lib=/usr/local/lib \
--with-mpfr-include=/usr/local/include --with-mpfr-lib=/usr/local/lib \
--with-gmp-include=/usr/local/include --with-gmp-lib=/usr/local/lib

I tried to diff between this configure and the previous one but most 
lines had changed.

Please advise.

Sincerely,
john