Dumb Question on GCC
Elfyn McBratney
elfyn@cygwin.com
Tue Jul 1 21:53:00 GMT 2003
On Tue, 1 Jul 2003, Martin Gainty wrote:
> GCC SlpReg.c
> /cygdrive/h/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ccwParH7.o(.text+0x11d):SLPReg.c
> : un
> defined reference to `_SLPOpen'
>
> My header file refers to function SLPOpen not _SLPOpen
> The .c file calls SLPOpen not _SLPOpen
Meaning? You declare and define that function? Or you declare a library
function? If the latter, you need to link in the library e.g.
$ gcc SlpReg.c -L/path/to/library/files -llib
(where the path after `-L' is searched for a library named `lib')
> Where does the leading underscore come from ?
> How do I shut it off the compiler from introducing leading _?
That's how the linker referrs to the symbol name.
Elfyn
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