On Tue, Apr 19, 2016 at 1:15 PM, Chaos Zhang <zcsd2...@gmail.com> wrote:

> Hi,
>
> Is there a way to use Linux command 'if' like this :
> <http://cmake.3232098.n2.nabble.com/file/n7593278/2016-04-19_113005.png>
> For i need to execute 'if condition' in make phase rather than cmake phase.
>

Try like this:

% cat CMakeLists.txt
add_custom_target(foo ALL)
add_custom_command(TARGET foo
    PRE_BUILD
    COMMAND if [ -f bar ]\; then echo yes\; else echo no\; fi)
% cmake .
% make
no
Built target foo
% touch bar
% make
yes
Built target foo
%


> Thanks a lot
> Chaos Zhang
>
>
>
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