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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Is there a way to define a library target, on which I
could use target_link_libraries(), without creating/building this library, i.e.
without defining it with add_library(), but with add_custom_target for instance
?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>The goal is to work on a small part of a large
project: I'd like to have my binary linked with the few libraries that I have
checked out, and all other libraries taken from a pre-built repository (i.e. a
full build of the project used as a reference on a shared filesystem)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>(Somehow similar to the process described here for
scons : <a href="http://www.scons.org/doc/1.2.0/HTML/scons-user/c3810.html">http://www.scons.org/doc/1.2.0/HTML/scons-user/c3810.html</a>,
but only at a library level)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Our initial and most straight forward idea (unsuccessful)
was to implement this build system:<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'><span
style='mso-list:Ignore'>-<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>describe all library
dependencies (target_link_libraries) in a single common file (so that all info
are present in the sparse sandbox)<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'><span
style='mso-list:Ignore'>-<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>for each library of the
full project:<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:57.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo2'><![if !supportLists]><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-family:
"Courier New"'><span style='mso-list:Ignore'>o<font size=1
face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>if present in the
sandbox, build it and use it<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:57.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo2'><![if !supportLists]><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-family:
"Courier New"'><span style='mso-list:Ignore'>o<font size=1
face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>otherwise, consider the
pre-built lib from the reference, and don't try to rebuild it<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>We also tried without success to create symlink to
the missing libs, but it was not possible then to use target_link_libraries()
on these targets.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>3rd unsuccessful solution: trying to
add_subdirectory() of the reference sandbox in the sparse sandbox for missing
directories: cmake complains that these directories don't belong to the project
(don't share the same root).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>So, is there any solution for this way of working
with cmake?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Thanks<o:p></o:p></span></font></p>
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