g77 Building Procedure
Extract libf2c and gcc/f from the standard gcc-2.95.2 and place them in Apple's gcc-932.1-6 tree:
$ tar -zxvf gcc-932.1-6.tar.gz
$ mv gcc-6 gcc-2.95.2-g77
$ tar -zxvf <somewhere>/gcc-2.95.2-g77.tar.gz
$ mv gcc-2.95.2-g77 gcc-6
and then apply my private patch and make:
$ patch -p1 -s < <somewhere>/gcc-2.95.2-macosx-10.1.patch
$ su
# ln -s /usr/bin/nmedit /usr/local/bin/.
$ export RC_ARCHS=ppc
$ export RC_CFLAGS='-arch ppc'
$ export RC_OS='macos'
$ export TARGETS=ppc
$ export HOSTS=ppc
$ export SRCROOT=`pwd`
$ make install >& install.log &
Then build libg2c.a (dynamic)
$ patch -p1 -s < ../patches/gcc-2.95.2-libg2c.patch
$ cd gcc
$ for i in ../obj/cc-ppc-on-ppc/*.h; do ln -s $i
.; done
$ cd ..
$ mkdir obj/ppc/libf2c
$ pushd obj/ppc/libf2c
$ CFLAGS='-traditional-cpp' $SRCROOT/libf2c/configure
--srcdir=$SRCROOT/libf2c --host=ppc --target=ppc
$ make >& make.log &
$ cp -pP libg2c.a ../../../dst/usr/lib/gcc/darwin/2.95.2/
$ cp g2c.h ../../../dst/usr/include/gcc/darwin/2.95.2/
$ ln -s gcc/darwin/2.95.2/g2c.h ../../../dst/usr/include/.
$ ln -s gcc/darwin/default/libg2c.a ../../../dst/usr/lib/libg2c.a
$ cd ../../cc-ppc-on-ppc/
$ cp g77 ../../dst/usr/bin/f77
$ cp f771 ../../dst/usr/libexec/gcc/darwin/ppc/2.95.2/
$ su
# cd ../../dst
# chown -R root:wheel usr
# pushd usr/bin
# ln -s c++ g++
# ln -s cc gcc
# ln -s f77 g77
# popd
# gnutar -zcvf <somewhere>/gcc-with-g77-932.1-1c-bin.tar.gz
usr/
How to Install a Precompiled Binary Package
A binary package is available as an RPM which can be installed as
# rpm -ivh gcc-with-g77-932.1-1c.ppc.rpm
REMARKS
# rpm -e gcc-with-g77
# rpm -ivh gcc-orig-932.1-1b.ppc.rpm
FCFLAGS = -fno-automatic -fno-second-underscore
-fno-f90 -fugly-complex -fno-globals -fugly-init -Wno-globals