Hello,

I am attempting to build root 5.28 as part of testing some legacy software, and for maximum compatibility I would like to use gcc/g++/g77 3.4 when building. I've installed all of the appropriate compatibility rpms on two machines, one running SLF 5.7 and the other 6.3. When I build on the SLF 5.7 machine everything works fine. When I do the same thing on the SLF 6.3 machine it works until almost the end, where I get the following error:

g77 -m32 -O2  -o bin/g2root main/src/g2root.o \
                   -Llib lib/libminicern.so \
                   /usr/lib/gcc/x86_64-redhat-linux/3.4.6/libfrtbegin.a /usr/lib/gcc/x86_64-redhat-linux/3.4.6/32/libg2c.so -lnsl -lm -ldl  -pthread   -rdynamic

/usr/lib/gcc/x86_64-redhat-linux/3.4.6/libfrtbegin.a: could not read symbols: File in wrong format
collect2: ld returned 1 exit status
make: *** [bin/g2root] Error 1

When I do rpm -qf /usr/lib/gcc/x86_64-redhat-linux/3.4.6/libfrtbegin.a I get

compat-gcc-34-g77-3.4.6-19.el6.x86_64

for SLF6, and

compat-gcc-34-g77-3.4.6-4.1.x86_64

for SLF 5.7. Are there any changes in this package that would cause an error such as the one above? It looks like it's the same version of the compiler, but something important must have changed between version 4 and 19. Does anyone have an idea regarding a workaround?

Many thanks,

Ken