On Sun, Aug 03, 2014 at 05:46:40PM -0500, David Zemon wrote:
> Hello,
>
> For the simple case of three directories and two projects - /root, /root/p1,
> and /root/p2 - I would like to set some common flags for both projects and
> then other flags should be independent. For instance, p1 should be compiled
> with "-std=c99 -Os" and p2 should be compiled with "-std=c99 -O1". The first
> flag, -std=c99, is common to all projects and the second, -Os, might be
> changed from project to project. How do I do this?
>
> I thought I could create MyRulesOverride.cmake with the content:
>
> set(CMAKE_C_FLAGS_INIT "-std=c99")
>
> And that would be the end of it, but apparently not. The CMakeLists.txt
> files in each project have a line such as " set(CMAKE_C_FLAGS "-Os")" which
> is apparently overwriting the cached value from CMakeCInformation.cmake. I
> can't write a line like "set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Os")" because
> then the result is "-std=c99 -std=c99 -Os" for the second project.
>
> Any help would be greatly appreciated.I haven't tested this, but would you have to *add* to the flag? AFAIU setting always over writes the previous value. /M -- Magnus Therning OpenPGP: 0xAB4DFBA4 email: mag...@therning.org jabber: mag...@therning.org twitter: magthe http://therning.org/magnus The results point out the fragility of programmer expertise: advanced programmers have strong expectations about what programs should look like, and when those expectations are violated--in seemingly innocuous ways--their performance drops drastically. -- Elliot Soloway and Kate Ehrlich
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