Linker error when building C code with -g option

English Programming/Scripting
#1

Hello,
I am trying my hands on debugging on openSUSE 11.2 and when I use the following build command:

gcc -o -g tut tutorial01.c -I/usr/local/include -L/usr/local/lib -lavutil -lavformat -lavcodec

I get following linking error list:

/usr/src/packages/BUILD/glibc-2.10.1/csu/../sysdeps/i386/elf/start.S:65: multiple definition of `_start'         
/usr/lib/gcc/i586-suse-linux/4.4/../../../crt1.o:/usr/src/packages/BUILD/glibc-2.10.1/csu/../sysdeps/i386/elf/start.S:65: first defined here                                                                                      
tut:(.rodata+0x0): multiple definition of `_fp_hw'                                                               
/usr/lib/gcc/i586-suse-linux/4.4/../../../crt1.o:(.rodata+0x0): first defined here                               
tut: In function `_fini':                                                                                        
(.fini+0x0): multiple definition of `_fini'                                                                      
/usr/lib/gcc/i586-suse-linux/4.4/../../../crti.o:initfini.c:(.fini+0x0): first defined here                      
tut:(.rodata+0x4): multiple definition of `_IO_stdin_used'                                                       
/usr/lib/gcc/i586-suse-linux/4.4/../../../crt1.o:(.rodata.cst4+0x0): first defined here                          
tut: In function `__data_start':                                                                                 
(.data+0x0): multiple definition of `__data_start'                                                               
/usr/lib/gcc/i586-suse-linux/4.4/../../../crt1.o:(.data+0x0): first defined here                                 
tut: In function `__data_start':                                                                                 
(.data+0x4): multiple definition of `__dso_handle'                                                               
/usr/lib/gcc/i586-suse-linux/4.4/crtbegin.o:(.data+0x0): first defined here                                      
tut: In function `_init':                                                                                        
(.init+0x0): multiple definition of `_init'                                                                      
/usr/lib/gcc/i586-suse-linux/4.4/../../../crti.o:initfini.c:(.init+0x0): first defined here                      
/tmp/cc2GqJnC.o: In function `SaveFrame':                                                                        
tutorial01.c:(.text+0x0): multiple definition of `SaveFrame'                                                     
tut:(.text+0xb4): first defined here                                                                             
/tmp/cc2GqJnC.o:(.data+0x0): multiple definition of `buffer_protocol'                                            
tut:(.data+0x20): first defined here                                                                             
/tmp/cc2GqJnC.o: In function `main':                                                                             
tutorial01.c:(.text+0x423): multiple definition of `main'                                                        
tut:(.text+0x4d7): first defined here                                                                            
/usr/lib/gcc/i586-suse-linux/4.4/crtend.o:(.dtors+0x0): multiple definition of `__DTOR_END__'                    
tut:(.dtors+0x4): first defined here                                                                             
/usr/lib/gcc/i586-suse-linux/4.4/../../../../i586-suse-linux/bin/ld: warning: Cannot create .eh_frame_hdr section, --eh-frame-hdr ignored.                                                                                        
/usr/lib/gcc/i586-suse-linux/4.4/../../../../i586-suse-linux/bin/ld: error in tut(.eh_frame); no .eh_frame_hdr table will be created.                                                                                             
collect2: ld returned 1 exit status

But when I build it without -g option it builds fine. I am new on linux so is there something I might be missing? My machine is 32 bit and OS is OpenSUSE 11.2

Any help will be appreciated

Cheers!!!
Sandeep

#2

Install the glibc-profile package and try again.

#3

I tried installing glibc-profile but no luck. Its the same issue

~S

#4

Stupid me, I should shoot myself :). I was using gcc option -o in wrong place
with this it works fine

gcc -g tutorial01.c -I/usr/local/include -L/usr/local/lib -lavutil -lavformat -lavcodec -o tut

~S