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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Fedja,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">As far as I know, the Makefiles generated from CMake cannot contain decisions. CMake supports several output types aside from Makefiles and some
of them probably don’t support decisions. However, you could supply these arguments within CMake call using -D option. For example<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D"> cmake -DENV=VERSION_2 <source_or_binary_directory><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">creates a CMake variable just like<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D"> set(ENV "VERSION_2" CACHE)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">in the CMake source file.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">As you’ve mentioned already, you can access environment variables using
</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Courier New";color:#1F497D">$ENV{variable}</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> syntax in CMake.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hope this helps.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Miroslav<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> CMake [mailto:cmake-bounces@cmake.org]
<b>On Behalf Of </b>Fedja Jeleskovic<br>
<b>Sent:</b> Friday, April 01, 2016 8:08 PM<br>
<b>To:</b> cmake@cmake.org<br>
<b>Subject:</b> [CMake] Parsing command line arguments from the make<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Since I am converting existing makefile project to use cmake instead I need to accept values that come from command line which looks like this:<br>
VARIABLE_NAME="/home/user/project" make ENV=VERSION_2<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">First one is used like this:<o:p></o:p></p>
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<p class="MsoNormal">include $(VARIABLE_NAME)/Makefile.include<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Second one has this code that triggers different paths later:<br>
ifneq ($(ENV),)<o:p></o:p></p>
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<p class="MsoNormal">DEPLOYMENT_VERSION=$(ENV)<o:p></o:p></p>
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<p class="MsoNormal">endif<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">How do I do this in cmake?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks!<o:p></o:p></p>
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