Hi, I downloaded the source of nhc98-1.20 and tried to compile it, but when it is linking greencard-nhc98, I got multiple errors like: .../nhc98-1.20/lib/x86_64-Linux/Prelude.a(RealFloat_Float.o)(.text+0x49): In function `FR_Prelude_46cFIsNeg': : undefined reference to `signbit' .../nhc98-1.20/lib/x86_64-Linux/Prelude.a(RealFloat_Float.o)(.text+0xc9): In function `FR_Prelude_46cFIsNormal': : undefined reference to `isnormal' .../nhc98-1.20/lib/x86_64-Linux/Prelude.a(RealFloat_Float.o)(.text+0x149): In function `FR_Prelude_46cFIsFinite': : undefined reference to `isfinite' Then, when it is linking lib/x86_64-Linux/MkProg, there is another error: .../nhc98-1.20/lib/x86_64-Linux/Prelude.a(RemoveFile.o)(.data+0xc): undefined reference to `FR_Directory_46unlink_35' and soon after this the whole make fails because there is no lib/x86_64-Linux/MkConfig. uname -a shows: Linux ... 2.6.9-55.ELsmp #1 SMP Fri Apr 20 16:36:54 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux and targets/x86_64-Linux/config.cache shows: INSTALLDIR=... DOCDIR=... BUILDWITH=gcc BUILDOPTS="" BUILDDIR=.../nhc98-1.20/targets RTSFLAG=yes CC=gcc COPTS="" ENDIAN=-DLOW_BYTE_FIRST HEAP=100000 LIB=yes BIN=yes INC=yes MAN=yes DOCS=no EXE= CURSES="-ltermcap -lcurses" READLINE="" INSTALLVER="v1.20 (2007-11-22)" INSTALLINFO="config: x86_64-Linux/ by ... on Wed Jan 9 12:00:05 CST 2008" FW="" Can anybody help me on how to get this build to work? Thanks! Di, Yu 1.9 ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ