Hi, I am using gcc4.3 and glibc 2.8. During compilation am getting the compilation mentioned below. Can any one help me out. I am not sure if it is a bug of new gcc. /glibc/x86-linux2/../sysroot/usr/include/wc har.h:341: multiple definition of `wctob' /opt/i686/base/common/l2tr/src/Communicat ion/CommInterface.lo:/sysroot/emer_atca7101-glibc_cgl/x86-linux2/../s ysroot/usr/include/wchar.h:341: first defined here /opt/i686/base/common/l2tr/src/Communicat ion/UnixDomainSocket.lo: In function `btowc': /sysroot/emer_atca7101-glibc_cgl/x86-linux2/../sysroot/usr/include/wc har.h:335: multiple definition of `btowc' /opt/i686/base/common/l2tr/src/Communicat ion/CommInterface.lo:/sysroot/emer_atca7101-glibc_cgl/x86-linux2/../s ysroot/usr/include/wchar.h:335: first defined here collect2: ld returned 1 exit status *** Error code 1 clearmake: Error: Build script failed for "/opt/i686/lib/libl2TraceRouteCommunication Some background of this error. I have add these 6 line to my .cpp file to avoid some error(error: '__extern_inline' does not name a type) #ifndef __extern_inline #define __extern_inline #endif #ifndef __wur #define __wur #endif Thanks