I am installing a 4.2 snapshot on a machine with an ancient distribution
(RH 7.2), and I am getting the following error from make install
gcc -c -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Wold-style-definition -Wmissing-format-attribute -DHAVE_CONFIG_H -I. -I. -I../../gcc-4.2-20070124/gcc -I../../gcc-4.2-20070124/gcc/. -I../../gcc-4.2-20070124/gcc/../include -I../../gcc-4.2-20070124/gcc/../libcpp/include -I/devel/pasqua/GNU/gmp/include -I/devel/pasqua/GNU/mpfr/include -I../../gcc-4.2-20070124/gcc/../libdecnumber -I../libdecnumber cc1-checksum.c -o cc1-checksum.o
cc1: error: unrecognized command line option "-Wno-variadic-macros"
cc1: error: unrecognized command line option "-Wno-overlength-strings"
make[2]: *** [cc1-checksum.o] Error 1
make[2]: Leaving directory `/home1/devel/pasqua/GNU/obj-4.2-20070124/gcc'
make[1]: *** [install-gcc] Error 2
make[1]: Leaving directory `/home1/devel/pasqua/GNU/obj-4.2-20070124'
make: *** [install] Error 2