<div dir="ltr">I figured out what was going on by lots of experimentation. When we link an Ada executable, we link in two other libraries, each of which is based on C/C++ code. It appears that CMake keeps track of this and adds the implicit library dependencies you'll have because of this C and C++ code. That is why these libraries were showing up. I was able to reproduce this with a simple CMakeLists.txt file. I worked around the problem by defining the implicit library variables to be empty (which will not cause us problems as the link driver (g++ for C/C++ execs, gnatmake for Ada execs) adds the right C/C++ run time libraries to the link line.<br>
<br>Tom<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Jan 3, 2014 at 2:48 PM, Alexander Neundorf <span dir="ltr"><<a href="mailto:a.neundorf-work@gmx.net" target="_blank">a.neundorf-work@gmx.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Friday 03 January 2014, Tom Kacvinsky wrote:<br>
> I sent an email yesterday about -lstdc++ showing up on my link line even<br>
> though I did not request it. And I was getting -lc and -lm multiple times.<br>
><br>
> After much digging, I tracked it down to CMAKE_CXX_IMPLICIT_LINK_LIBRARIES<br>
> and CMAKE_C_IMPLICIT_LINK_LIBRARIES being added to the link line, even<br>
> though the language in effect is Ada (as set up by the PLPlot Ada support<br>
> CMake moduels).<br>
><br>
> My question is why are these added? Is this done by default in cmake, or<br>
> is this a deficiency in the Ada support modules?<br>
<br>
</div>Ada support is not part of cmake, so it's probably an issue with the Ada<br>
files.<br>
<br>
Alex<br>
<br>
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