What you can do however is set the variable which uses the <FLAGS> definition, i.e. CMAKE_C_COMPILE_OBJECT in your example. I have a CMakeLists.txt file where I override the default assembler flags:<br><br>set(CMAKE_ASM-ATT_COMPILE_OBJECT "<CMAKE_ASM-ATT_COMPILER> ${ASM_SYS_FLAGS} -o <OBJECT> <SOURCE>")<br>
<br>to use what is set in my ASM_SYS_FLAGS variable instead of the default <FLAGS> one. I'm not sure but I think you are supposed to set these sort of variables early on in a CMakeList.txt before the project() or enable_language() commands. Also, I think that later changes to the ASM_SYS_FLAGS variable are ignored.<br>
<br>--<br>Glenn<br><br><div class="gmail_quote">On 5 September 2011 19:53, David Cole <span dir="ltr"><<a href="mailto:david.cole@kitware.com">david.cole@kitware.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div class="h5">On Mon, Sep 5, 2011 at 1:31 PM, David Dunkle <<a href="mailto:ddunkle@arxan.com">ddunkle@arxan.com</a>> wrote:<br>
> Is it possible to read and to set a property/rule variable like <FLAGS>?<br>
> What syntax would I use to do that? I mean <FLAGS> as it, for example,<br>
> appears here:<br>
><br>
><br>
><br>
> set(CMAKE_C_COMPILE_OBJECT "${target_compiler} -c <FLAGS> -o <OBJECT>")<br>
><br>
><br>
><br>
> For example can I do something like this (this is pseudo code)?<br>
><br>
><br>
><br>
> #read<br>
><br>
> set(MY_FLAGS, ${<FLAGS>} );<br>
><br>
><br>
><br>
> …<br>
><br>
><br>
><br>
> #set<br>
><br>
> set(<FLAGS>, ${MY_FLAGS});<br>
><br>
><br>
><br>
> In the documentation, here:<br>
><br>
><br>
><br>
> <a href="http://cmake.org/Wiki/CMake_Useful_Variables#Expansion_Rules" target="_blank">http://cmake.org/Wiki/CMake_Useful_Variables#Expansion_Rules</a><br>
><br>
><br>
><br>
> it hints at this being possible but doesn’t explain, at least not so that I<br>
> understand.<br>
><br>
><br>
><br>
> Thanks,<br>
><br>
> -David<br>
><br>
><br>
><br>
><br>
><br>
</div></div>> _______________________________________________<br>
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<br>
The wiki page is simply misleading. You cannot set those from the<br>
CMake language. CMake decides on their values in internal code, and<br>
then substitutes appropriately when generating make files or<br>
solution/project files for the build system.<br>
<br>
You can set things the "CMAKE_CXX_FLAGS" which eventually get<br>
translated into the substitution that CMake performs, but you cannot<br>
alter "<FLAGS>" in the rules variables.<br>
<br>
<br>
HTH,<br>
David<br>
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</blockquote></div><br>