How to use --exclude-libs?

[Jeffrey Walton]

On Fri, Aug 12, 2011 at 10:10 AM, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
> On 12 August 2011 14:54, Jeffrey Walton <noloader@gmail.com> wrote:
>> On Fri, Aug 12, 2011 at 9:52 AM, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
>>> On 12 August 2011 14:13, Jeffrey Walton wrote:
>>>> Hi All,
>>>>
>>>> A DSO uses Crypto++. Crypto++ has a number of exported symbols, which
>>>> are showing up in the DSO.
>>>>
>>>> nm -g -D --defined-only libesapi-c++.so | grep -i cryptopp | wc -l
>>>> 5560
>>>>
>>>> According to ld(2), we can use --exclude-libs. I've tried adding the
>>>> flag before and after the library includes; and used variations on the
>>>> name: cryptopp, libcryptopp, libcryptopp.so. And I have not been able
>>>> to get --exclude-libs to work, even with ALL.
>>>
>>> I think --exclude-libs only applies to archive libraries, i.e. static libs.
>>>
>>> But as it's an ld option you should a) probably ask on a binutils list
>>> and b) use -Wl,--exclude-libs,libfoobar.a if you're passing it to gcc
>> Thanks Jonathan. My apologies about the ld question.
>
>
> I'm a bit surprised you didn't see
>
> g++: error: unrecognized command line option '--exclude-libs'
>
> or (for earlier releases)
>
> cc1plus: error: unrecognized command line option "-fexclude-libs"
>
> as well as the "No such file or directory" error, indicating g++
> doesn't understand --exclude-libs
When I saw your `-Wl`, the light bulbs lit up.

Jeff