According to the manual at:
http://sourceware.org/binutils/docs-2.16/ld/Options.html#Options
[quote]
For options whose names are multiple letters, either one dash or two
can precede the option name; ...
[/quote]
By the way, I tested both (one and two dashes), ld complained both anway.
2006/7/10, Thiemo Seufer <ths@networkno.de>:
> Tzu-Chien Chiu wrote:
> > I got a warning from ld: "gc-sections option ignored."
> >
> > The compilation command:
> > [quote]
> > or32-elf-gcc -o a.o -c -ffunction-sections -fdata-sections a.c
> > [/quote]
> >
> > The link command is:
> > [quote]
> > or32-elf-gcc -o program a.o b.o c.o -lfoo -Wl,-gc-sections, -Wl,-static
> > [/quote]
>
> You missed the second dash in front of --gc-sections.
>
>
> Thiemo
>
--
Tzu-Chien Chiu - SMedia Technology Corp.
URL: http://www.csie.nctu.edu.tw/~jwchiu/