svn commit: r362304 - head/x11-toolkits/pango

[Tijl Coosemans]

On Mon, 21 Jul 2014 14:15:55 +0200 John Marino wrote:
> On 7/21/2014 13:26, Tijl Coosemans wrote:
>> On Mon, 21 Jul 2014 12:55:23 +0200 John Marino wrote:
>>> Everything that uses a pango function that has a libm symbol must also
>>> link with libm.
>> 
>> This is a completely false statement.  If X links to Y and Y uses Z
>> symbols, you do not have to link X with Z.  Y links with Z and that is
>> enough.  Otherwise X would have to link with its entire dependency
>> tree.
> 
> If the linker doesn't follow Y's link to Z, how is it supposed to
> resolve Z references?

If X doesn't contain Z references the linker doesn't have to resolve
Z references.

If X does contain Z references then explicit linking requires that you
explicitly link X with -lZ and that you cannot rely on -lY to imply -lZ.