I'm stumped as to why the following is happening with GCC 3.4.4 on the AmigaOS PPC platform with Boost 1.32.0: no_ded_typename_pass (passed) no_ded_typename_fail (failed) All the other config tests pass except for non_ded_typename_fail which always compiles. According to the Jamfile it should not compile. I'm using v1 of bjam if that makes any difference. Here is the contents of config_test.output for reference: GNU C++ version 3.4.4 (AmigaOS build 20050716) __cplusplus =1 __STDC__ =1 __GNUC__ =3 __GNUC_MINOR__ =4 __GNUG__ =3 __VERSION__ ="3.4.4 (AmigaOS build 20050716)" __CHAR_UNSIGNED__ =1 __REGISTER_PREFIX__ [no value] __USER_LABEL_PREFIX__ [no value] __EXCEPTIONS =1 __ELF__ =1 __powerpc__ =1 __STDC_HOSTED__ =1 ********************************************************************* GNU libstdc++ version 20050519 __GLIBCXX__ =20050519 _GLIBCXX_USE_LONG_LONG =1 _GLIBCXX_USE_C99_MATH =1 _GLIBCXX_HOSTED =1 _GLIBCXX_SJLJ_EXCEPTIONS =1 ********************************************************************* Detected Platform: AmigaOS Type char is unsigned Type wchar_t is signed byte order for type short =8 0 byte order for type int =24 16 8 0 byte order for type long =24 16 8 0 sizeof(wchar_t) =4 sizeof(short) =2 sizeof(int) =4 sizeof(long) =4 sizeof(size_t) =4 sizeof(ptrdiff_t) =4 sizeof(void*) =4 sizeof(void(*)(void)) =4 sizeof(float) =4 sizeof(double) =8 sizeof(long double) =8 CHAR_BIT =8 CHAR_MAX =255 WCHAR_MAX =65535 SHRT_MAX =32767 INT_MAX =2147483647L LONG_MAX =2147483647L LLONG_MAX =0x7fffffffffffffffLL ULLONG_MAX =0xffffffffffffffffULL ********************************************************************* Boost version 103200 BOOST_USER_CONFIG = BOOST_COMPILER_CONFIG ="boost/config/compiler/gcc.hpp" BOOST_STDLIB_CONFIG ="boost/config/stdlib/libstdcpp3.hpp" BOOST_PLATFORM_CONFIG ="boost/config/platform/amigaos.hpp" BOOST_DEDUCED_TYPENAME =typename BOOST_DISABLE_THREADS [no value] BOOST_HAS_DIRENT_H [no value] BOOST_HAS_GETTIMEOFDAY [no value] BOOST_HAS_LONG_LONG [no value] BOOST_HAS_NRVO [no value] BOOST_HAS_PARTIAL_STD_ALLOCATOR [no value] BOOST_HAS_STDINT_H [no value] BOOST_HAS_UNISTD_H [no value] BOOST_MSVC6_MEMBER_TEMPLATES [no value] BOOST_NESTED_TEMPLATE =template BOOST_NO_CWCHAR [no value] BOOST_NO_CWCTYPE [no value] BOOST_NO_HASH [no value] BOOST_NO_INTRINSIC_WCHAR_T [no value] BOOST_NO_MS_INT64_NUMERIC_LIMITS [no value] BOOST_NO_SLIST [no value] BOOST_NO_STD_WSTREAMBUF [no value] BOOST_NO_STD_WSTRING [no value] BOOST_NO_SWPRINTF [no value] BOOST_STD_EXTENSION_NAMESPACE =std BOOST_UNREACHABLE_RETURN(0) [no value] Any ideas? --Steven Solie