<div dir="ltr">In case it matters, in Clark's suggested code, note that PRE_BUILD is only fully honoured with Visual Studio generators. For everything else, it gets treated as PRE_LINK, which occurs later (i.e. after compiling all the sources rather than before). So it depends on what your "if" test is trying to do whether or not this matters in your case.</div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 5:24 PM, Clark Wang <span dir="ltr"><<a href="mailto:dearvoid@gmail.com" target="_blank">dearvoid@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Apr 19, 2016 at 1:15 PM, Chaos Zhang <span dir="ltr"><<a href="mailto:zcsd2012@gmail.com" target="_blank">zcsd2012@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
Is there a way to use Linux command 'if' like this :<br>
<<a href="http://cmake.3232098.n2.nabble.com/file/n7593278/2016-04-19_113005.png" rel="noreferrer" target="_blank">http://cmake.3232098.n2.nabble.com/file/n7593278/2016-04-19_113005.png</a>><br>
For i need to execute 'if condition' in make phase rather than cmake phase.<br></blockquote><div><br></div><div>Try like this:<br><br>% cat CMakeLists.txt<br>add_custom_target(foo ALL)<br>add_custom_command(TARGET foo<br>    PRE_BUILD<br>    COMMAND if [ -f bar ]\; then echo yes\; else echo no\; fi)<br>% cmake .<br>% make<br>no<br>Built target foo<br>% touch bar<br>% make<br>yes<br>Built target foo<br>% <br><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
Thanks a lot<br>
Chaos Zhang<br>
<br>
<br>
<br>
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