gnupg-1.9.17 build failure: misc.c:992: error: invalid lvalue in unary `&'

[Rex Dieter]

I'm seeing a build failure trying to build gnupg-1.9.17 on
rh90(gcc-3.2.2), rhel3(gcc-3.2.3), rhel4(gcc-3.4.3):

make[2]: Entering directory `/var/tmp/BUILD/gnupg-1.9.17/g10'
if gcc -DHAVE_CONFIG_H -I. -I. -I..  -I../gl -I../common -I../include
-I../intl -DLOCALEDIR=\"/usr/share/locale\"
-DGNUPG_BINDIR="\"/usr/bin\"" -DGNUPG_LIBEXECDIR="\"/usr/libexec\""
-DGNUPG_LIBDIR="\"/usr/lib/gnupg\""
-DGNUPG_DATADIR="\"/usr/share/gnupg\""        -O2 -pipe -m32 -march=i386
-mtune=pentium4 -fPIE -Wall -MT misc.o -MD -MP -MF ".deps/misc.Tpo" -c
-o misc.o misc.c; \
then mv -f ".deps/misc.Tpo" ".deps/misc.Po"; else rm -f
".deps/misc.Tpo"; exit 1; fi
misc.c:250:2: warning: #warning need to handle the usage here?
misc.c: In function `mpi_print':
misc.c:992: error: invalid lvalue in unary `&'
make[2]: *** [misc.o] Error 1