Hello, I am trying to compile boost 1.57 under Solaris for the second day now, please help. Here is my setup: - Solaris Sparc 5.10 - gcc 4.9.2 What I did: ./bootstrap.sh --without-icu --prefix=/usr/local/ -n Building Boost.Build engine with toolset gcc... ./b2 This results in two errors like the following: gcc.compile.asm bin.v2/libs/context/build/gcc-4.9.2/release/threading-multi/asm/make_sparc64_sysv_elf_gas.o /usr/ccs/bin/as: "/var/tmp//cc3IBrs7.s", line 13: error: invalid character (0x40) /usr/ccs/bin/as: "/var/tmp//cc3IBrs7.s", line 34: warning: detect global register use not covered .register pseudo-op /usr/ccs/bin/as: "/var/tmp//cc3IBrs7.s", line 52: error: unknown "%"-symbol /usr/ccs/bin/as: "/var/tmp//cc3IBrs7.s", line 52: error: quoted-string operand required /usr/ccs/bin/as: "/var/tmp//cc3IBrs7.s", line 52: error: statement syntax "g++" -x assembler-with-cpp -O3 -finline-functions -Wno-inline -Wall -fPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_CONTEXT_DYN_LINK=1 -DBOOST_CONTEXT_SOURCE -DNDEBUG -D_XOPEN_SOURCE=600 -I"." -c -o "bin.\ v2/libs/context/build/gcc-4.9.2/release/threading-multi/asm/make_sparc64_sysv_elf_gas.o" "libs/context/src/asm/make_sparc64_sysv_elf_gas.S" Question 1: the /usr/css/bin directory is not in my PATH. How can I tell b2 to use the gnu-utils assembler? I also get a lot of errors like this: "g++" -x assembler-with-cpp -O3 -finline-functions -Wno-inline -Wall -fPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_CONTEXT_DYN_LINK=1 -DBOOST_CONTEXT_SOURCE -DNDEBUG -D_XOPEN_SOURCE=600 -I"." -c -o "bin.\ v2/libs/context/build/gcc-4.9.2/release/threading-multi/asm/jump_sparc64_sysv_elf_gas.o" "libs/context/src/asm/jump_sparc64_sysv_elf_gas.S" ...failed gcc.compile.asm bin.v2/libs/context/build/gcc-4.9.2/release/threading-multi/asm/jump_sparc64_sysv_elf_gas.o... gcc.compile.c++ bin.v2/libs/context/build/gcc-4.9.2/release/threading-multi/unsupported.o libs/context/src/unsupported.cpp:7:2: error: #error "platform not supported" #error "platform not supported" ^ "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -pthreads -fPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_CONTEXT_DYN_LINK=1 -DBOOST_CONTEXT_SOURCE -DNDEBUG -D_XOPEN_SOURCE=600 -I"."\ -c -o "bin.v2/libs/context/build/gcc-4.9.2/release/threading-multi/unsupported.o" "libs/context/src/unsupported.cpp" ...failed gcc.compile.c++ bin.v2/libs/context/build/gcc-4.9.2/release/threading-multi/unsupported.o... ...skipped libboost_context.so.1.57.0 for lack of asm/make_sparc64_sysv_\ elf_gas.o... Question 2:Why does the compiler complain, even though the -D_XOPEN_SOURCE=600 flag is specified? Your support is very much appreciated Best regards Raphael