Has anyone successfully compiled 64-bit gcc-4.2.2 on SunOS 5.9, which uses 64-bit gnu ld, and can produce both 32 and 64-bit binaries? If so, any hints would be greatly appreciated. I Attempted this using CFLAGS to inform the build process of location of previously-built 32-bit libraries: sh /path/to/solaris64/bootstrap/src/gcc-4.2.2/gcc-4.2.2/configure --with-mpfr=/path/to/sparc-32-solaris_nc/bootstrap --with-gmp=/path/to/solaris64/bootstrap --with-build-time-tools=/path/to/solaris64/bootstrap/bootstrap/bin --with-gnu-as --with-gnu-ld --with-as=/path/to/solaris64/bootstrap/bin/as --with-ld=/path/to/solaris64/bootstrap/bin/ld --enable-languages=c,c++,fortran --enable-languages=c,c++,fortran --prefix=/path/to/solaris64/bootstrap/gcc-4.2.2 --host=sparc64-sun-solaris2.9 invoked make like so: make LDFLAGS=-L/path/to/sparc-32-solaris_nc/lib -L/path/to/sparc-32-solaris_nc/lib64 -L/path/to/sparc-32-solaris_nc/bootstrap/lib -L/path/to/sparc-32-solaris_nc/bootstrap/lib64 -Wl,-R,/path/to/solaris64/bootstrap/lib -Wl,-R,/path/to/solaris64/bootstrap/lib64 -L/path/to/solaris64/bootstrap/lib -L/path/to/solaris64/bootstrap/lib64 -Wl,-R,/usr/local/lib -Wl,-R,/usr/local/lib/sparcv9 BOOT_LDFLAGS=-Wl,-R,/path/to/solaris64/bootstrap/lib -Wl,-R,/path/to/solaris64/bootstrap/lib64 -L/path/to/solaris64/bootstrap/lib -L/path/to/solaris64/bootstrap/lib64 -Wl,-R,/usr/local/lib -Wl,-R,/usr/local/lib/sparcv9 CFLAGS=-L/path/to/sparc-32-solaris_nc/bootstrap/gcc-4.2.2/lib/gcc/sparc-sun-solaris2.9/4.2.2 resulted in this error: /path/to/sparc-64-solaris_nc/bootstrap/src/gcc-4.2.2/gcc -4.2.2_build/./gcc/xgcc -B/path/to/sparc-64-solaris_nc/b ootstrap/src/gcc-4.2.2/gcc-4.2.2_build/./gcc/ -B/path/to /sparc-64-solaris_nc/bootstrap/gcc-4.2.2/sparc64-sun-solaris2.9/bin/ -B/grid/gro /vol/gbl_statcomp_devel/sparc-64-solaris_nc/bootstrap/gcc-4.2.2/sparc64-sun-sola ris2.9/lib/ -isystem /path/to/sparc-64-solaris_nc/bootst rap/gcc-4.2.2/sparc64-sun-solaris2.9/include -isystem /grid/gro/vol/gbl_statcomp _devel/sparc-64-solaris_nc/bootstrap/gcc-4.2.2/sparc64-sun-solaris2.9/sys-includ e -O2 -O2 -L/path/to/sparc-32-solaris_nc/bootstrap/gcc- 4.2.2/lib/gcc/sparc-sun-solaris2.9/4.2.2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./incl ude -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -shared -nodefaultlibs -Wl,--soname=libgcc_s.so.1 -Wl,--version-script=libgcc/./libgcc. map -o ./libgcc_s.so.1.tmp libgcc/./_muldi3_s.o [SNIP...] libgcc/./_udiv_w_sdiv_s.o libgcc/./_udivmoddi4_s.o libgcc/./unwind-dw2_s.o libg cc/./unwind-dw2-fde_s.o libgcc/./unwind-sjlj_s.o libgcc/./gthr-gnat_s.o libgcc/. /unwind-c_s.o -lc && rm -f ./libgcc_s.so && if [ -f ./libgcc_s.so.1 ]; then mv - f ./libgcc_s.so.1 ./libgcc_s.so.1.backup; else true; fi && mv ./libgcc_s.so.1.tm p ./libgcc_s.so.1 && ln -s libgcc_s.so.1 ./libgcc_s.so /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: skipping incompatible /lib/sparcv9/libc.so when searching for -lc /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: skipping incompatible /usr/lib/sparcv9/libc.so when searching for -lc /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: skipping incompatible /usr/lib/sparcv9/libc.so when searching for -lc /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `/path/to/sparc-64-solaris_nc /bootstrap/src/gcc-4.2.2/gcc-4.2.2_build/./gcc/crti.o' is incompatible with spar c output /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `/usr/ccs/lib/sparcv9/values-Xa.o' is incompatible wi th sparc output /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `/path/to/sparc-64-solaris_nc /bootstrap/src/gcc-4.2.2/gcc-4.2.2_build/./gcc/crtbegin.o' is incompatible with sparc output /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_muldi3_s.o' is incompatible with sparc out put /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_negdi2_s.o' is incompatible with sparc out put /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_lshrdi3_s.o' is incompatible with sparc ou tput /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_ashldi3_s.o' is incompatible with sparc ou tput /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_ashrdi3_s.o' is incompatible with sparc ou tput /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_cmpdi2_s.o' is incompatible with sparc out put /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_ucmpdi2_s.o' is incompatible with sparc ou tput /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_clear_cache_s.o' is incompatible with spar c output /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_enable_execute_stack_s.o' is incompatible with sparc output /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_trampoline_s.o' is incompatible with sparc output /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./__main_s.o' is incompatible with sparc outp ut /path/to/sparc-64-solaris_nc/bootstrap/bin/ld: sparc:v9 architecture of input file `libgcc/./_absvsi2_s.o' is incompatible with sparc ou -- Yorick