ld: fatal: file .libs/sjlj.o: section [12].eh_frame: section type is SHT_PROGBITS: expected SHT_AMD64_UNWIND All of my Googling has lead me down the rabbit hole. Something about binutils? Am I stumbling in the right direction? Figured I would ask the source... Let me know what more info you would like to see if you can help me... Sun X4100M2 - x86 AMD64 - Solaris 10 U10 Compiling with GCC 3.4.3 GNU ld (GNU Binutils)2.22 solaris-build# mkdir gcc-4.7.2_build solaris-build# cd gcc-4.7.2_build solaris-build# $PWD/../gcc-4.7.2/configure --prefix=/opt/gcc-4.7.2 --with-gnu-as --with-as=/usr/sfw/bin/gas \ --enable-languages=c,c++ CC='gcc -m64' solaris-build# make Thanks!