Dear All, I have written an application where I used a few ASM statements in it. The statements are very simple and they look like as shown below. asm ( "next:\n\t" #ifdef __x86_64__ "pop %rax\n\t" "pop %rcx" #else "popl %eax\n\t" "popl %ecx" #endif ); asm ( "xorl %eax, %eax\n\t" "cpuid\n\t" "cmpl $4, %eax\n\t" // check if cpuid supports leaf 4 "jl .single_core\n\t" // Single core "movl $4, %eax\n\t" "movl $0, %ecx\n\t" // start with index = 0; Leaf 4 reports ); // at least one valid cache level asm ( "cpuid" : "=a" (Regeax) : : "%ebx", "%ecx", "%edx" ); asm ( "jmp .multi_core\n" ".single_core:\n\t" "xor %eax, %eax\n" ".multi_core:" ); I am able to compile the application in optimization level 2 (-O2) where as when I specify the optimization level (-O3) I end up with the following errors. {standard input}: Assembler messages: {standard input}:275: Error: symbol `next' is already defined {standard input}:532: Error: symbol `.single_core' is already defined {standard input}:534: Error: symbol `.multi_core' is already defined {standard input}:579: Error: symbol `next' is already defined {standard input}:590: Error: symbol `next' is already defined {standard input}:614: Error: symbol `next' is already defined {standard input}:637: Error: symbol `next' is already defined {standard input}:690: Error: symbol `.single_core' is already defined {standard input}:692: Error: symbol `.multi_core' is already defined {standard input}:1007: Error: symbol `.single_core' is already defined {standard input}:1009: Error: symbol `.multi_core' is already defined {standard input}:1045: Error: symbol `.single_core' is already defined {standard input}:1047: Error: symbol `.multi_core' is already defined {standard input}:1083: Error: symbol `.single_core' is already defined {standard input}:1085: Error: symbol `.multi_core' is already defined {standard input}:1196: Error: symbol `.single_core' is already defined {standard input}:1198: Error: symbol `.multi_core' is already defined I have searched the google and did not find any solution. However, I have gone through the following link and there is no much luck to me. http://lists.atrpms.net/pipermail/atrpms-users/2005-July/003451.html One thing, I can mention here is, I did update the packages through YUM command only. The system configuration is as follows. 1) DELL 64 Bit - Pentium(R) D CPU 3.00 GHz 2) 1 GB RAM 3) Linux - CENTOS - 5.2 with default kernel version - 2.6.18-92.el5 4) gcc version 4.1.2 20071124 Please suggest me a solution to getridof from the above errors. Thanks in advance. Thanks and Regards, Srinivas G -- To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html