<div dir="ltr"><div><div><div>Hi Ivan.<br><br></div>The correct use of OBJECT libraries is not to link against them, but to list them as sources (using a special syntax), like this:<br><br></div>add_executable(project main.c $<TARGET_OBJECTS:serial>)<br>
<br></div>(Assuming 'serial' is the name of the object library). This is outlined in the documentation for OBJECT libraries.<br><br>Petr<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, Nov 2, 2013 at 7:50 AM, Ivan Sergio Borgonovo <span dir="ltr"><<a href="mailto:mail@webthatworks.it" target="_blank">mail@webthatworks.it</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I'm trying to convert an embedded eclipse project to CMake with a<br>
python script.<br>
<br>
I reached a point where everything compile as I want, everything get<br>
listed in the linking step but libraries are in the wrong order and<br>
linking fail.<br>
<br>
Just reordering the libraries list and running the linking process by<br>
hand produce the right executable.<br>
<br>
I want to convert the project in a completely automatic way and I don't<br>
want my python code to get too complicated to understand<br>
inter-libraries dependencies to write smarter CMakeLists.txt files or<br>
to order properly the libraries unless there is a very simple way to do<br>
so. This would be sweet but I don't think there is a simple way.<br>
<br>
Eclipse was compiling everything as objects so order of linking was not<br>
important.<br>
<br>
I've tried to follow<br>
<a href="http://www.cmake.org/Wiki/CMake/Tutorials/Object_Library" target="_blank">http://www.cmake.org/Wiki/CMake/Tutorials/Object_Library</a><br>
I get<br>
<br>
CMake Error at cmakedirs.cmake:118 (target_link_libraries):<br>
Target "serial" of type OBJECT_LIBRARY may not be linked into another<br>
target. One may link only to STATIC or SHARED libraries, or to<br>
executables with the ENABLE_EXPORTS property set.<br>
Call Stack (most recent call first):<br>
CMakeLists.txt:89 (include)<br>
<br>
for all libraries<br>
<br>
But I can't get rid of the same error even when I add:<br>
add_executable(project main.c)<br>
set_target_properties(project PROPERTIES ENABLE_EXPORTS ON) #<--<br>
<br>
<br>
--<br>
Ivan Sergio Borgonovo<br>
<a href="http://www.webthatworks.it" target="_blank">http://www.webthatworks.it</a><br>
<br>
--<br>
<br>
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</blockquote></div><br></div>